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LG Bh9520tw

Service manual

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100% found this document useful (1 vote)

1K views147 pages

LG Bh9520tw

Service manual

Uploaded by

danielradu27

We take content rights seriously. If you suspect this is your content, claim it here.

Available Formats

Download as PDF, TXT or read online on Scribd

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Internal Use Only

Website http://biz.lgservice.com
SERVICE MANUAL
MODEL: BH9520TW (BH9520TW, S92T1-S/W, S92T1-C, T2, W2)

P/NO : AFN75741115

MARCH, 2012

CINEMA 3D SOUND Blu-ray

HOME THEATER SYSTEM
SERVICE MANUAL
MODEL: BH9520TW

(BH9520TW, S92T1-S/W, S92T1-C, T2, W2)

CAUTION
BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS
IN THIS MANUAL.

CONTENTS
SECTION
SECTION
SECTION
SECTION
SECTION
SECTION

1 ........ SUMMARY
2 ........ ELECTRICAL
3 ........ CABINET & MAIN CHASSIS
4 ........ MT8560 F/E LOADER PART
5 ........ WIRELESS RECEIVER PART
6 ........ REPLACEMENT PARTS LIST

1-1

SECTION 1
SUMMARY
CONTENTS
PRODUCT SAFETY SERVICING GUIDELINES FOR BD-HTS PRODUCTS ............................................ 1-3
SERVICING PRECAUTIONS .......................................................................................................................... 1-4
GENERAL SERVICING PRECAUTIONS
INSULATION CHECKING PRODEDURE
ELECTROSTATICALLY SENSITIVE (ES) DEVICES
INITIAL SYSTEM SETUP ................................................................................................................................ 1-5
HIDDEN KEY MODE........................................................................................................................................ 1-6
SOFTWARE UPGRADE .................................................................................................................................. 1-7
NETWORK UPDATE ....................................................................................................................................... 1-8
SPECIFICATIONS .......................................................................................................................................... 1-10

1-2

PRODUCT SAFETY SERVICING GUIDELINES FOR BD-HTS PRODUCTS

IMPORTANT SAFETY NOTICE
This manual was prepared for use only by properly trained audio-video service
technicians.
When servicing this product, under no circumstances should the original design be
modified or altered without permission from LG Corporation. All components should
be replaced only with types identical to those in the original circuit and their physical
location, wiring and lead dress must conform to original layout upon completion of
repairs.
Special components are also used to prevent x-radiation, shock and fire hazard.
These components are indicated by the letter x included in their component designators and are required to maintain safe performance. No deviations are allowed
without prior approval by LG Corporation.
Circuit diagrams may occasionally differ from the actual circuit used. This way,
implementation of the latest safety and performance improvement changes into the
set is not delayed until the new service literature is printed.

CAUTION : Do not attempt to modify this product in any way. Never perform customized installations without manufacturers approval. Unauthorized modifications
will not only void the warranty, but may lead to property damage or user injury.
Service work should be performed only after you are thoroughly familiar with these
safety checks and servicing guidelines.

GRAPHIC SYMBOLS
The exclamation point within an equilateral triangle is intended to
alert the service personnel to important safety information in the
service literature.
The lightning flash with arrowhead symbol within an equilateral
triangle is intended to alert the service personnel to the presence of
noninsulated dangerous voltage that may be of sufficient magnitude
to constitute a risk of electric shock.
The pictorial representation of a fuse and its rating within an equilateral triangle is intended to convey to the service personnel the
following fuse replacement caution notice:
CAUTION : FOR CONTINUED PROTECTION AGAINST RISK
OF FIRE, REPLACE ALL FUSES WITH THE SAME TYPE AND
RATING AS MARKED NEAR EACH FUSE.

SERVICE INFORMATION
While servicing, use an isolation transformer for protection from AC line shock. After
the original service problem has been corrected, make a check of the following:

TIPS ON PROPER INSTALLATION

1. Never install any receiver in a closed-in recess, cubbyhole, or closely fitting shelf
space over, or close to, a heat duct, or in the path of heated air flow.
2. Avoid conditions of high humidity such as: outdoor patio installations where dew
is a factor, near steam radiators where steam leakage is a factor, etc.
3. Avoid placement where draperies may obstruct venting. The customer should
also avoid the use of decorative scarves or other coverings that might obstruct
ventilation.
4. Wall- and shelf-mounted installations using a commercial mounting kit must
follow the factory-approved mounting instructions. A product mounted to a shelf
or platform must retain its original feet (or the equivalent thickness in spacers) to
provide adequate air flow across the bottom. Bolts or screws used for fasteners
must not touch any parts or wiring. Perform leakage tests on customized installations.
5. Caution customers against mounting a product on a sloping shelf or in a tilted
position, unless the receiver is properly secured.
6. A product on a roll-about cart should be stable in its mounting to the cart.
Caution the customer on the hazards of trying to roll a cart with small casters
across thresholds or deep pile carpets.
7. Caution customers against using extension cords. Explain that a forest of extensions, sprouting from a single outlet, can lead to disastrous consequences to
home and family.

FIRE AND SHOCK HAZARD

1. Be sure that all components are positioned to avoid a possibility of adjacent
component shorts. This is especially important on items trans-ported to and from
the repair shop.
2. Verify that all protective devices such as insulators, barriers, covers, shields,
strain reliefs, power supply cords, and other hardware have been reinstalled per
the original design. Be sure that the safety purpose of the polarized line plug has
not been defeated.
3. Soldering must be inspected to discover possible cold solder joints, solder
splashes, or sharp solder points. Be certain to remove all loose foreign particles.
4. Check for physical evidence of damage or deterioration to parts and components, for frayed leads or damaged insulation (including the AC cord), and
replace if necessary.
5. No lead or component should touch a high current device or a resistor rated at 1
watt or more. Lead tension around protruding metal surfaces must be avoided.
6. After reassembly of the set, always perform an AC leakage test on all exposed
metallic parts of the cabinet (the channel selector knobs, antenna terminals,
handle and screws) to be sure that set is safe to operate without danger of
electrical shock. DO NOT USE A LINE ISOLATION TRANSFORMER DURING
THIS TEST. Use an AC voltmeter having 5000 ohms per volt or more sensitivity
in the following manner: Connect a 1500 ohm, 10 watt resistor, paralleled by a
.15 mfd 150V AC type capacitor between a known good earth ground water pipe,
conduit, etc.) and the exposed metallic parts, one at a time. Measure the AC voltage across the combination of 1500 ohm resistor and .15 mfd capacitor. Reverse
the AC plug by using a non-polarized adaptor and repeat AC voltage measurements for each exposed metallic part. Voltage measured must not exceed 0.75
volts RMS. This corresponds to 0.5 milliamp AC. Any value exceeding this limit
constitutes a potential shock hazard and must be corrected immediately.

1-3

CAUTION : CLASS 1M VISIBLE AND INVISIBLE LASER

RADIATION WHEN OPEN. DO NOT VIEW DIRECTLY WITH
OPTICAL INSTRUMENTS
Use of controls, adjustments or the performance of procedures
other than those specified herein may result in hazardous radiation exposure.

SERVICING PRECAUTIONS
CAUTION: Before servicing the BD-HTS covered by this service data and its supplements and addends, read and follow
the SAFETY PRECAUTIONS.
NOTE: if unforeseen circumstances create conflict between
the following servicing precautions and any of the safety
precautions in this publications, always follow the safety precautions.
Remember Safety First :

Electrostatically Sensitive (ES) Devices

Some semiconductor (solid state) devices can be damaged
easily by static electricity. Such components commonly are
called Electrostatically Sensitive (ES) Devices. Examples of
typical ES devices are integrated circuits and some field effect
transistors and semiconductor chip components.
The following techniques should be used to help reduce the
incidence of component damage caused by static electricity.

General Servicing Precautions

1. Always unplug the BD-HTS AC power cord from the AC
power source before:
(1) Removing or reinstalling any component, circuit board,
module, or any other assembly.
(2) Disconnecting or reconnecting any internal electrical
plug or other electrical connection.
(3) Connecting a test substitute in parallel with an electrolytic capacitor.
Caution : A wrong part substitution or incorrect polarity installation of electrolytic capacitors may result in an
explosion hazard.

1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any
electrostatic charge on your body by touching a known
earth ground. Alternatively, obtain and wear a commercially
available discharging wrist strap device, which should be
removed for potential shock reasons prior to applying power
to the unit under test.

2. Do not spray chemicals on or near this BD-HTS or any of its

assemblies.

3. Use only a grounded-tip soldering iron to solder or unsolder

ES devices.

3. Unless specified otherwise in this service data, clean electrical contacts by applying an appropriate contact cleaning
solution to the contacts with a pipe cleaner, cotton-tipped
swab, or comparable soft applicator.
Unless specified otherwise in this service data, lubrication of
contacts is not required.

4. Use only an anti-static solder removal device. Some solder

removal devices not classified as anti-static can generate
electrical charges sufficient to damage ES devices.

4. Do not defeat any plug/socket B+ voltage interlocks with

whitch instruments covered by this service manual might be
equipped.

6. Do not remove a replacement ES device from its protective

package until immediately before you are ready to install
it. (Most replacement ES devices are packaged with leads
electrically shorted together by conductive foam, aluminum
foil,or comparable conductive material).

5. Do not apply AC power to this BD-HTS and / or any of its

electrical assemblies unless all solidstate device heat sinks
are correctly installed.
6. Always connect the test instrument ground lead to an
appropriate ground before connecting the test instrument
positive lead. Always remove the test instrument ground
lead last.
Insulation Checking Procedure
Disconnect the attachment plug from the AC outlet and turn
the power on. Connect an insulation resistance meter (500V)
to the blades of the attachment plug. The insulation resistance
between each blade of the attachment plug and accessible
conductive parts (Note 1) should be more than 1Mohm.
Note 1 : Accessible Conductive Parts include Metal panels,
Input terminals, Earphone jacks,etc.

2. After removing an electrical assembly equipped with ES

devices, place the assembly on a conductive surface such
as aluminum foil, to prevent electrostatic charge buildup or
exposure of the assembly.

5. Do not use freon-propelled chemicals. These can generate

an electrical charge sufficient to damage ES devices.

7. Immediately before removing the protective material from

the leads of a replacement ES device, touch the protective
material to the chassis or circuit assembly into which the
device will be installed.
Caution: Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged
replacement ES devices. (Normally harmless motion such
as the brushing together of your clothes fabric or the lifting
of your foot from a carpeted floor can generate static electricity sufficient to damage an ES device.)

1-4

INITIAL SYSTEM SETUP

When you turn on the unit for the first time, the initial setup wizard appears on the screen. Set the display language,
network setting and speaker setup on the initial setup wizard.
1. Press (POWER).
The initial setup wizard appears on the screen.
2. Use c/d/e/f to select a display language and
press ENTER (~).

Network connection status is displayed on the screen.

For details on network settings, refer to O/M for Connecting to your Home Network.
7. Select [Next] and press ENTER (~).
3. Read and prepare the preparations for the network settings and then press ENTER (~) while [Start] is highlighted.

If wired network is connected , the network connection

setting will automatically be finished.
4. All available networks are displayed on the screen.
Use c/d to select [Wired Network] or desired SSID of
wireless network and press ENTER (~).

If you have security on your access point, you need to

input the security code as necessary.
5. Use c/d/e/f to select the IP mode between
[Dynamic] and [Static]. Normally, select [Dynamic]
to allocate an IP address automatically

6. Select [Next] and press ENTER (~) to apply network

settings.

Read and prepare the preparations for the wireless

speaker setting.
8. Select [Next] and press ENTER (~).
9. Press ENTER (~) to verify the test tone signals of
the speakers.

After verifying the test tone signals, press ENTER (~)

while [Stop] is highlighted. Select [Next] and press ENTER (~).
10. Check all the settings that you have set in the previous steps.

Press ENTER (~) while [Finish] is highlighted to finish the initial setup settings. If there is any settings to
be changed, use e/f to select [Previous] and press
ENTER (~).

1-5

HIDDEN KEY MODE

HIDDEN
MODE

AVAILABLE
STATUS

ENTRANCE
KEY

EXIT
KEY

DISPLAY

DISPLAY
SYSTEM
INFORMATION

(NO DISC || OPEN)

&& (Highlight on
16:9 Full of setup
menu)

1+3+9+7+1+3+9+
ENTER or MP2

PAUSE or HOME
Pause Key
FACTORY RESET

SYSTEM
INFORMATION
(KEY,VERSION)
1. PLATFORM
INFORMATION
2. HDMI
CONNECTTON
INFORMATION
3. WIRELESS
INFORMATION

DISPLAY
DEBUG
INFORMATION

(NO DISC || OPEN)

&& (Highlight on
16:9 Full of setup
menu)

4+5+6+2+5+8+0+
ENTER

RETURN/PAUSE

EEPROM
INITIAL

POWER ON
STATUS

Front STOP +
RMC 0 for 5s

Auto exit

E2P CLEAR

DOOR
LOCK

DVD FUNCTION
and POWER ON
STATUS

Front STOP +
RMC STOP for 5s

Toggling

Locked display
for 3s

WIRELESS
SPK
REMATE

POWER ON
STATUS

Front STOP +
RMC MUTE

REMATE

1-6

SOFTWARE UPGRADE
Burn a DVD recordable disc or USB with a file that is named to LG_HB_7000M60.ROM.
Insert a upgrading disc or USB.
Show help message for disc upgrade as follows.

Press Enter key to upgrade.

Press Enter key to upgrade and it will show progress information.

After completing upgrade then power is off.

1-7

NETWORK UPDATE
You can update the firmware by connecting your unit device directly to the S/W update server.

Configuring Network Settings

To update the firmware by connecting your player directly to the S/W update server, your player must be
connected to network. If your player is not connected to network, make a physical connection.
1) Press Home on the Remote Control.
2) Press or select the Setup mode.

3) Select Others --> Software Update

4) On the UPDATE window, press or ENTER to

check for the newest update.
(Checking will takes about one minute.)
Caution:
Pressing Enter while checking for the update will end
process.

1-8

If newer version exists,

5) If newer version exists, the message
A new update was found. Do you want to
download it? appears.
Select OK to download the update.
(Selecting CANCEL will end the update.)

6) The player starts downloading the newest update

from the SBP server.

7) When downloading is completed, the message,

Download is complete. Do you want to
update? appears.
8) Select OK to start updating.

9) Update will be processed

Caution :
Do not turn off the power during firmware update.

10) When update is completed,

the system will turn off automatically.
1-9

SPECIFICATIONS
GENERAL
Power requirements
Power consumption
Dimensions (W x H x D)
Net Weight (Approx.)
Operating temperature
Operating humidity

Refer to main label on the rear panel.

Refer to main label on the rear panel.
Approx. 440 X 65 X 297 mm
3.3 kg
5 C to 35 C (41 F to 95 F)
5 % to 90 %

INPUTS/OUTPUTS
VIDEO OUT
HDMI IN/OUT (video/audio)
ANALOG AUDIO IN
DIGITAL IN (OPTICAL)
PORT. IN

1.0 V (p-p), 75 , sync negative, RCA jack x 1

19 pin (Type A, HDMI Connector)
2.0 Vrms (1 kHz, 0 dB), 600 , RCA jack (L, R) x 1
3 V (p-p), Optical jack x 1
0.5 Vrms (3.5 mm stereo jack)

TUNER
FM Tuning Range

87.5 to 108.0 MHz or 87.50 to 108.00 MHz

AMPLIFIER
Power output (4 / 3 ), (RMS), THD 10 %
Total
1100 W
Front
140 W x 2
Center
140 W
Rear
180 W x 2
Sub-Woofer
180 W (Passive)
3D Effect - Left
70 W
3D Effect - Right
70 W
WIRELESS RECEIVER
Power requirements
Power consumption
External dimensions (WxHxD)
Net Weight
SYSTEM
Laser
Wavelength
Signal system
Frequency response
Harmonic distortion
Dynamic range
LAN port
Wireless LAN (internal antenna)
Bus Power Supply (USB)

Refer to main label on the wireless receiver

Refer to main label on the wireless receiver
60 X 220 X 175 mm
0.9 kg

Semiconductor laser
405 nm / 650 nm
Standard PAL/NTSC color TV system
20 Hz to 18 kHz (48 kHz, 96 kHz, 192 kHz sampling)
Less than 0.05 %
More than 80 dB
Ethernet jack x 1, 10BASE-T / 100BASE-TX
Integrated IEEE 802.11n (2.4 GHz band) wireless
networking access, compatible with 802.11b/g Wi-Fi networks.
DC 5 V
2.1 A

1-10

SPEAKERS
Front speaker (Left/ Right)
Type
Impedance Rated
Input Power
Max. Input power
Net Dimensions (W x H x D)
Net Weight

2 Way 3 speaker
4
140 W
280 W
280 x 1 330 x 280 mm
5.5 kg

Rear speaker (Left/ Right)

Type
Impedance Rated
Input Power
Max. Input power
Net Dimensions (W x H x D)
Net Weight

2 Way 3 speaker
4
140 W
280 W
280 x 1 330 x 280 mm
5.5 kg

Center speaker
Type
Impedance Rated
Input Power
Max. Input power
Net Dimensions (W x H x D)
Net Weight

2 Way 3 speaker
4
140 W
280 W
412 x 82 x 73 mm
1.4 kg

Subwoofer
Type
Impedance Rated
Input Power
Max. Input power
Net Dimensions (W x H x D)
Net Weight

1 Way 1 speaker
3
180 W
360 W
251 x 336 x 347 mm
6.3 kg

Top speaker (Front left and Front right speakers)

Type
1 Way 2 speaker
Impedance Rated
4
Input Power
70 W
Max. Input power
140 W
Net Dimensions (W x H x D)
Built in Front speakers
Net Weight
Built in Front speakers

Design and specifications are subject to change without notice.

1-11

MEMO

1-12

SECTION 2 ELECTRICAL
CONTENTS
DIGITAL DISPLAY & MEDIA TRAINING MASTER ............................................................................................................. 2-2
1. DISTORTED PICTURE .............................................................................................................................................. 2-2
2. NO PICTURE ............................................................................................................................................................. 2-7
3. PICTURE COLOR .................................................................................................................................................... 2-12
4. NOISE/AUDIO PROBLEMS ..................................................................................................................................... 2-14
5. MISCELLANEOUS ................................................................................................................................................... 2-17
6. BLU-RAY PLAYER................................................................................................................................................... 2-26
ONE POINT REPAIR GUIDE .............................................................................................................................................. 2-27
1. NO POWER PROBLEM ........................................................................................................................................... 2-27
2. NO BOOTING WHEN YOU TURN THE UNIT ON, NO MESSAGE OR WELCOME ON FRONT PANEL .......... 2-29
3. WIRED NETWORK CONNECTION ERROR........................................................................................................... 2-38
4. WIRELESS NETWORK CONNECTION ERROR .................................................................................................... 2-39
5. BAD HDMI VIDEO / AUDIO OUTPUT ..................................................................................................................... 2-40
6. NO AUDIO FROM SPEAKER .................................................................................................................................. 2-41
7. NO USB.................................................................................................................................................................... 2-42
ELECTRICAL TROUBLESHOOTING GUIDE..................................................................................................................... 2-43
1. SYSTEM POWER SUPPLY ON SMPS BOARD ..................................................................................................... 2-43
2. AMP POWER SUPPLY ON SMPS BOARD ............................................................................................................ 2-46
3. POWER SUPPLY ON MAIN BOARD ...................................................................................................................... 2-47
4. SYSTEM PART ........................................................................................................................................................ 2-53
5. NO CVBS VIDEO OUTPUT ..................................................................................................................................... 2-55
6. NO HDMI OUTPUT .................................................................................................................................................. 2-56
7. NO AUDIO OUTPUT ................................................................................................................................................ 2-57
WAVEFORMS ...................................................................................................................................................................... 2-58
1. SYSTEM PART - 1................................................................................................................................................... 2-58
2. SYSTEM PART - 2 (SYSTEM MEMORY) ............................................................................................................... 2-59
3. VIDEO PART (100% FULL COLOR BAR)............................................................................................................... 2-60
4. AUDIO PART - 1 (S/PDIF) ....................................................................................................................................... 2-61
5. AUDIO PART - 2 (I2S) ............................................................................................................................................. 2-62
6. HDMI PART.............................................................................................................................................................. 2-63
WIRING DIAGRAM .............................................................................................................................................................. 2-65
BLOCK DIAGRAMS ............................................................................................................................................................ 2-67
1. OVERALL BLOCK DIAGRAM .................................................................................................................................. 2-67
2. SMPS #1 BLOCK DIAGRAM ................................................................................................................................... 2-69
3. SMPS #2 BLOCK DIAGRAM ................................................................................................................................... 2-71
4. AUDIO BLOCK DIAGRAM ....................................................................................................................................... 2-73
5. SERVO BLOCK DIAGRAM ...................................................................................................................................... 2-75
6. MIC BLOCK DIAGRAM ............................................................................................................................................ 2-77
7. HDMI BLOCK DIAGRAM ......................................................................................................................................... 2-79
8. AMP BLOCK DIAGRAM........................................................................................................................................... 2-81
CIRCUIT DIAGRAMS .......................................................................................................................................................... 2-83
1. SMPS CIRCUIT DIAGRAM ...................................................................................................................................... 2-83
2. MAIN - CPU CIRCUIT DIAGRAM ............................................................................................................................ 2-85
3. MAIN - MEMORY CIRCUIT DIAGRAM ................................................................................................................... 2-87
4. MAIN - LOADER CIRCUIT DIAGRAM ..................................................................................................................... 2-89
5. MAIN - MICOM CIRCUIT DIAGRAM ....................................................................................................................... 2-91
6. MAIN - HDMI CIRCUIT DIAGRAM .......................................................................................................................... 2-93
7. MAIN - ADC/DIR CIRCUIT DIAGRAM ..................................................................................................................... 2-95
8. MAIN - DSP CIRCUIT DIAGRAM ............................................................................................................................ 2-97
9. MAIN - POWER CIRCUIT DIAGRAM ...................................................................................................................... 2-99
10. MAIN - I/O CIRCUIT DIAGRAM ............................................................................................................................. 2-101
11. MAIN - 3DSZ CIRCUIT DIAGRAM......................................................................................................................... 2-103
12. MAIN - FPGA DDR CIRCUIT DIAGRAM ............................................................................................................... 2-105
13. MAIN - HDMI TX CIRCUIT DIAGRAM ................................................................................................................... 2-107
14. AMP - PWM CIRCUIT DIAGRAM .......................................................................................................................... 2-109
15. AMP - AMP CIRCUIT DIAGRAM ........................................................................................................................... 2-111
16. JACK CIRCUIT DIAGRAM (OPTIONAL PART)..................................................................................................... 2-113
17. FRONT CIRCUIT DIAGRAM .................................................................................................................................. 2-117
CIRCUIT VOLTAGE CHART ............................................................................................................................................. 2-119
PRINTED CIRCUIT BOARD DIAGRAMS ......................................................................................................................... 2-121
1. SMPS P. C. BOARD .............................................................................................................................................. 2-121
2. MAIN P. C. BOARD ............................................................................................................................................... 2-123
3. AMP P. C. BOARD................................................................................................................................................. 2-127
4. JACK P. C. BOARD (OPTIONAL PART) ............................................................................................................... 2-129
5. FRONT P. C. BOARD ............................................................................................................................................ 2-131

2-1

DIGITAL DISPLAY & MEDIA TRAINING MASTER

Objective: To provide clear and concise guidelines for customer service agents to handle calls on
box goods calls.

1. DISTORTED PICTURE
1-1. Lines on Picture
Distorted picture refers to the customer getting video, but there is a problem with the video.

What cables is
the customer using to
connect the BD?

Determine what cables the customer is using to connect

the BD to the TV and if connected properly. Refer to OM for
connections. Tighten any loose cables. Make sure the customer
is not connecting a BD to VCR or BD to DVD Recorder.
Copy protection can distort the picture on older DVD models.

YES

Is the TV set
to the correct input?

Make sure the TV is on the correct input.

Turn TV off, then on to determine input.
Video when using composite, or component.
DVI when using DVI, and HDMI when using HDMI.

YES

Do ghosting appear
when watching multiple discs?

One disc displaying the issue is a problem with the disc.

Multiple discs displaying the problem could indicate the BD lens needs to
be cleaned. Recommend the customer use a lens cleaner on the BD.
A lens cleaner is available at any local electronics retailer.

YES

Do lines appear
when watching multiple discs?

One disc displaying the issue is a problem with the disc.

YES

Does ghosting appear

when the BD is connected to
another TV?

Connect the BD to another TV and play a disc.

No ghosting during disc play back indicates a problem with the first TV.
Please refer to the owners manual for instructions on how to connect
the BD to a TV. If the BD has a problem on the second TV,
then see service chart for service information.

YES

Has the customer tried

another set of cables?

Have the customer try another set of cables. A bad cable can
also cause video problems. Test the cable with another device to
the TV to also determine if the TV is bad. If BD is problem,
please see service chart for service information.

2-2

DIGITAL DISPLAY & MEDIA TRAINING MASTER

1-2. Ghost Picture
Distorted picture refers to the customer getting video, but there is a problem with the video.

What cables is the customer

using to connect the BD?

Determine what cables the customer is using to connect the BD to

the TV and if connected properly. Refer to OM for connections.
Tighten any loose cables. Make sure the customer is not connecting a
BD to VCR or BD to DVD Recorder. Copy protection can distort
the picture on older VCR models.

YES

Is the TV set to
the correct input?

Make sure the TV is on the correct input. Turn TV off,

then on to determine input. Video when using composite,
or component. DVI when using DVI, and HDMI when using HDMI.

YES

Do ghosting appear when

watching multiple discs?

One disc displaying the issue is a problem with the disc.

Multiple discs displaying the problem could indicate the BD lens
needs to be cleaned. Recommend the customer use a lens cleaner
on the BD. A lens cleaner is available at any local electronics retailer.

YES

Do lines appear when

watching a TV program?

Ghosting appearing when watching a TV program indicates an

issue with the display. If the TV program is fine, then connect
the BD to another input on the display to determine
if the problem is following the BD.

YES

Does ghosting
appear when the BD is
connected to another TV?

Connect the BD to another TV and play a disc.

No ghosting during disc play back indicates a problem with the first TV.
Please refer to the owners manual for instructions on how to
connect the BD to a TV. If the BD has a problem on the second TV,
then see service chart for service information.

YES

Has the customer tried

another set of cables?

2-3

DIGITAL DISPLAY & MEDIA TRAINING MASTER

1-3. Rolling Picture
Distorted picture refers to the customer getting video, but there is a problem with the video.

What cables is the customer

using to connect the BD?

Determine what cables the customer is using to connect the BD to

the TV and if connected properly. Refer to OM for connections.
Tighten any loose cables. Make sure the customer is not connecting
a BD to VCR or BD to DVD Recorder. Copy protection can distort
the picture on older VCR models.

YES

Is the TV set to
the correct input?

Make sure the TV is on the correct input. Turn TV off,

then on to determine input. Video when using composite,
or component. DVI when using DVI, and HDMI when using HDMI.

YES

Does rolling appear when

watching multiple discs?

One disc displaying the issue is a problem with the disc.

Multiple discs displaying the problem could indicate the BD lens
needs to be cleaned. Recommend the customer use a lens cleaner
on the BD. A lens cleaner is available at any local electronics retailer.

YES

Does rolling appear when

watching a TV program?

Rolling appearing when watching a TV program indicates

an issue with the display. If the TV program is fine, then connect
the BD to another input on the display to determine if the problem
is following the BD.

YES

Does rolling appear

when the BD is connected to
another TV?

Connect the BD to another TV and play a disc. No lines during disc play
back indicates a problem with the first TV. Please refer to the owners
manual for instructions on how to connect the BD to a TV. If the BD has a
problem on the second TV, then see service chart for service information.

YES

Has the customer tried

another set of cables?

Have the customer try another set of cables. A bad cable can also
cause video problems. Test the cable with another device to the TV
to also determine if the TV is bad. If BD is problem,
please see service chart for service information.

2-4

DIGITAL DISPLAY & MEDIA TRAINING MASTER

1-4. Shaky Picture
Distorted picture refers to the customer getting video, but there is a problem with the video.

What cables is the customer

using to connect the BD?

Determine what cables the customer is using to connect the BD to

YES

Is the TV set to
the correct input?

Make sure the TV is on the correct input. Turn TV off, then on

to determine input. Video when using composite, or component.
DVI when using DVI, and HDMI when using HDMI.

YES

Does shaking appear when

watching multiple discs?

One disc displaying the issue is a problem with the disc.

Multiple discs displaying the problem could indicate the BD lens
needs to be cleaned. Recommend the customer use a lens cleaner
on the BD. A lens cleaner is available at any local electronics retailer.

YES

Does shaking appear when

watching a TV program?

Shaking appearing when watching a TV program indicates

n issue with the display. If the TV program is fine, then connect
the BD to another input on the display to determine if the problem
is following the BD.

YES

Does shaking appear

when the BD is connected to
another TV?

Connect the BD to another TV and play a disc. No shaking during

disc play back indicates a problem with the first TV. Please refer to
the owners manual for instructions on how to connect the BD to a TV.
If the BD has a problem on the second TV,
then see service chart for service information.

YES

Has the customer tried

another set of cables?

2-5

DIGITAL DISPLAY & MEDIA TRAINING MASTER

1-5. Blurry Picture
Distorted picture refers to the customer getting video, but there is a problem with the video.

What cables is the customer

using to connect the BD?

Determine what cables the customer is using to connect the BD to

the TV and if connected properly. Refer to OM for connections.
Tighten any loose cables. Make sure the customer is not connecting
a BD to VCR or BD to DVD Recorder. Copy protection can distort
the picture on older VCR models.

YES

Is the TV set to
the correct input?

Make sure the TV is on the correct input. Turn TV off,

then on to determine input. Video when using composite, or component.
DVI when using DVI, and HDMI when using HDMI.

YES

Does blurriness appear when

watching multiple discs?

One disc displaying the issue is a problem with the disc.

Multiple discs displaying the problem could indicate the BD lens
needs to be cleaned. Recommend the customer use a lens cleaner on
the BD. A lens cleaner is available at any local electronics retailer.

YES

Does blurriness appear when

watching a TV program?

Blurriness appearing when watching a TV program indicates an

issue with the display. If the TV program is fine, then connect
the BD to another input on the display to determine if the problem
is following the BD.

YES

Does blurriness appear

when the BD is connected to
another TV?

Connect the BD to another TV and play a disc. No blurriness

during disc play back indicates a problem with the first TV.
Please refer to the owners manual for instructions on how to connect
the BD to a TV. If the BD has a problem on the second TV,
then see service chart for service information.

YES

Has the customer tried

another set of cables?

Have the customer try another set of cables.

A bad cable can also cause video problems. Test the cable with another
device to the TV to also determine if the TV is bad. If BD is problem, please
see service chart for service information.

2-6

DIGITAL DISPLAY & MEDIA TRAINING MASTER

2. NO PICTURE
2-1. Black Screen
The entire screen is black.

Does the BD on-screen

menu appear?

In case of customer use composite cable please make sure selecting

available resolution in the menu of the BD player, composite video can just
support 480i/p. In case of composite output is black please push the stop
button at the remote controller about 5 sec for changing 480p resolution.

YES

What cables is the customer

using to connect the BD?

Determine what cables the customer is using to connect the BD to

YES

Is the TV set to
the correct input?

Make sure the TV is on the correct input. Turn TV off,

then on to determine input. Video when using composite, or component.
DVI when using DVI, and HDMI when using HDMI.

YES

Is the customer able to

watch TV programming?

If the customer is not able to watch television then he may have a

problem with his television, especially if the cable signal comes
through on a different input. If the customer can not get a TV program,
then he still may have a problem with the particular input on his TV.

YES

Can the customer connect

the BD to another TV?

Have the customer connect the BD to another TV in order to

determine if the problem is the BD or the TV. Refer to the OM for
connections assistance. If the BD works on the second TV,
then the customer has a problem with his TV.

YES

Has the customer tried

another set of cables?

Have the customer try another set of cables. A bad cable can
also cause video problems. Test the cable with another device to the TV
to also determine if the TV is bad. If BD is problem, please see
service chart for service information.

2-7

DIGITAL DISPLAY & MEDIA TRAINING MASTER

2-2. Blue Screen
The entire screen is a solid blue color.

Does the BD on-screen

menu appear?

In case of customer use composite cable please make sure selecting

YES

What cables is the customer

using to connect the BD?

Determine what cables the customer is using to connect the BD

to the TV and if connected properly. Refer to OM for connections.
Tighten any loose cables. Make sure the customer is not connecting a
BD to VCR or BD to DVD Recorder. Copy protection can distort
the picture on older VCR models.

YES

Is the TV set to
the correct input?

Make sure the TV is on the correct input.

Turn TV off, then on to determine input. Video when using composite,
or component. DVI when using DVI, and HDMI when using HDMI.

YES

Is the customer able to

watch TV programming?

If the customer is not able to watch television then he may have a

YES

Can the customer connect

the BD to another TV?

Have the customer connect the BD to another TV in order to

determine if the problem is the BD or the TV. Refer to the OM for
connections assistance. If the BD works on the second TV,
then the customer has a problem with his TV.

YES

Has the customer tried

another set of cables?

Have the customer try another set of cables. A bad cable can also
cause video problems. Test the cable with another device to
the TV to also determine if the TV is bad. If BD is problem,
please see service chart for service information.

2-8

DIGITAL DISPLAY & MEDIA TRAINING MASTER

2-3. Snowy Screen
A snowy picture is when black and white dots are all over the screen.

Does the BD on-screen

menu appear?

In case of customer use composite cable please make sure selecting

YES

What cables is the customer

using to connect the BD?

Determine what cables the customer is using to connect the BD

YES

Is the TV set to
the correct input?

Make sure the TV is on the correct input. Turn TV off,

then on to determine input. Video when using composite, or component.
DVI when using DVI, and HDMI when using HDMI.

YES

Is the customer able to

watch TV programming?

If the customer is not able to watch television then he may

have a problem with his television, especially if the cable signal comes
through on a different input. If the customer can not get a TV program,
then he still may have a problem with the particular input on his TV.

YES

Can the customer connect

the BD to another TV?

Have the customer connect the BD to another TV in order to

determine if the problem is the BD or the TV. Refer to the OM for
connections assistance. If the BD works on the second TV,
then the customer has a problem with his TV.

YES

Has the customer tried

another set of cables?

2-9

DIGITAL DISPLAY & MEDIA TRAINING MASTER

2-4. No Signal
A no signal message appears on the screen of the display.

Does the BD on-screen

menu appear?

In case of customer use composite cable please make sure selecting

YES

What cables is the customer

using to connect the BD?

Determine what cables the customer is using to connect the BD

YES

Is the TV set to the

correct input?

Make sure the TV is on the correct input. Turn TV off,

then on to determine input. Video when using composite, or component.
DVI when using DVI, and HDMI when using HDMI.

YES

Is the customer able to

watch TV programming?

If the customer is not able to watch television then he may have a

YES

Can the customer connect

the BD to another TV?

Have the customer connect the BD to another TV in order to

determine if the problem is the BD or the TV. Refer to the OM for
connections assistance. If the BD works on the second TV,
then the customer has a problem with his TV.

YES

Has the customer tried

another set of cables?

Have the customer try another set of cables. A bad cable

can also cause video problems. Test the cable with another device to
the TV to also determine if the TV is bad. If BD is problem,
please see service chart for service information.

2-10

DIGITAL DISPLAY & MEDIA TRAINING MASTER

2-5. Invalid Format or Format Not Supported

Is the customer using a

digital cable connection?

Make sure the customers simultaneously connecting analog component

cable with HDMI cable. And then If Copy Protected Disc is playing back,
analog component output is no picture. Only when the analog output
is 480i, you can see the picture. In case of No Copy Protected Disc,
you can see the picture regardless of the resolution.

YES

Is the customer using an

analog cable connection?

Customers using an DVI , or HDMI cable connection need to set

the resolution on the product. Actually our BD can support 480i~1080p
but some TVs can just support specific resolution so in order to match
resolution between TV & BD P user can choose AUTO mode
at the setup menu.

YES

Is the display
HDCP compliant?

Make sure the display is HDCP compliant when using a DVI or

HDMI connection. A lack of HDCP compliancy on the display may
cause an invalid format or format not supported message to appear.
It can also cause a copy protection OSD to appear.

YES

Has the customer tried the

device on another display?

Ask the customer to connect the device to another display.

If the device starts working, then the problem may be the original display.
The customer will need to troubleshoot the display. If the device
still does not work, then the problem may be the device or the cable.

YES

Has the customer tried

another cable?

Ask the customer to replace the cable between the device and display.
If the problem is corrected, then the problem was with the cable.
If the problem continues, then the device is the problem.
Set up service according to in warranty or out of warranty procedures.

2-11

DIGITAL DISPLAY & MEDIA TRAINING MASTER

3. PICTURE COLOR
3-1. No Color
The video displays no color and only shows in black and white.

What cables is the customer

using to connect the BD?

Determine what cables the customer is using to connect the BD

to the TV and if connected properly. Refer to OM for connections.
Tighten any loose cables. Make sure the customer is not connecting a
BD to VCR. Copy protection can distort the picture on older VCR models.

YES

Is the TV set to the

correct input?

Make sure the TV is on the correct input according to the

connections in use. Video when using composite, or component.
DVI when using DVI, and HDMI when using HDMI.

YES

Does color appear when

watching multiple discs?

One disc displaying the issue is a problem with the disc.

Make sure the discs the customer is using are compatible with the
BD by checking playable discs in the owners manual.
Multiple discs displaying the problem indicates a problem
with the BD player.

YES

Does color appear when

watching a TV program?

If the cable or satellite programming is connected through

another input and the customer does not get color, the customer has a
problem with his television. If a TV program does have the color,
the problem may be the BD player, the cables being used,
or the TV itself.

YES

Does color appear

when the BD is
connected to another TV?

Connect the BD to another TV and play a disc. Good color during

disc play back indicates a problem with the first TV. Please refer to the
owners manual for instructions on how to connect the BD to a TV.
If the BD has a problem on the second TV, then see service chart for
service information.

YES

Has the customer tried

another set of cables?

Have the customer try another set of cables. A bad cable can
also cause video problems. Test the cable with another device to
the TV to also determine if the TV is bad. If the BD is the problem,
please see service chart for service information.

2-12

DIGITAL DISPLAY & MEDIA TRAINING MASTER

3-2. Poor Color
The color is poor. Examples would be washed out colors, colors bleeding into one another, or a solid tint to
a screen.

What cables is the customer

using to connect the BD?

Determine what cables the customer is using to connect the BD to

the TV and if connected properly. Refer to OM for connections.
Tighten any loose cables. Make sure the customer is not connecting a
BD to VCR. Copy protection can distort the picture on older VCR models.

YES

Is the TV set to the

correct input?

Make sure the TV is on the correct input according to the

connections in use. Video when using composite, or component.
DVI when using DVI, and HDMI when using HDMI.

YES

Is color fine
when watching multiple discs?

One disc displaying the issue is a problem with the disc.

Make sure the discs the customer is using are compatible with the BD
by checking playable discs in the owners manual. Multiple discs
displaying the problem indicates a problem with the BD player.

YES

Is color fine
when watching a TV program?

If the cable or satellite programming is connected through another

input and the customer does not get color, the customer has a problem
with his television. If a TV program does have the color, the problem
may be the BD player, the cables being used, or the TV itself.

YES

Is color fine when the BD is

connected to another TV?

Connect the BD to another TV and play a disc.

Good color during disc play back indicates a problem with the first TV.
Please refer to the owners manual for instructions on how to connect
the BD to a TV. If the BD has a problem on the second TV,
then see service chart for service information.

YES

Has the customer tried

another set of cables?

Have the customer try another set of cables. A bad cable

can also cause video problems. Test the cable with another device to
the TV to also determine if the TV is bad. If the BD is the problem,
please see service chart for service information.

2-13

DIGITAL DISPLAY & MEDIA TRAINING MASTER

4. NOISE/AUDIO PROBLEMS
4-1. No Audio
The customer is not able to get audio.

What cables is the customer

using to connect the BD?

Determine what cables the customer is using to connect the BD

to the TV and if connected properly. Refer to OM for connections.
Tighten any loose cables. Make sure the customer has audio cables
connected if using an HDMI to DVI adapter or video-only cables
(DVI, component, etc).

YES

Is the customer
able to see video?

Make sure the customer has not routed video

and audio to separate inputs.

YES

Does issue occur on

more than one disc?

Problem occurring on one disc indicates a problem with the disc.

Problem occurring on multiple discs could indicate a lens cleaner
is needed. The customer can purchase a lens cleaner at any
electronics retailer.

YES

Problem occur when

watching TV program?

No audio from a TV program on a different channel or input means

there is a problem with the television. If a TV program does have
the audio, the problem may be the BD player, the cables being used,
or the TV itself.

YES

Does the problem occur

when BD is connected to
another TV?

Audio is fine when the BD is connected to

another TV indicates the problem is with the television.
Refer to the owners manual for assistance
with connecting BD to another TV.

YES

Has the customer tried

another set of cables?

Have the customer try another set of cables. A bad cable can also
cause audio problems. Test the cable with another device to
the TV to also determine if the TV is bad. If BD is problem,
please see service chart for service information.

2-14

DIGITAL DISPLAY & MEDIA TRAINING MASTER

4-2. Distorted Audio
The audio sounds muffled, scratchy, or the audio skips.

What cables is the customer

using to connect the DVD?

Determine what cables the customer is using to connect the BD

to the TV and if connected properly. Refer to OM for connections.
Tighten any loose cables. Make sure the customer has audio
cables connected if using an HDMI to DVI adapter or video-only cables
(DVI, component, etc).

YES

Is the customer
able to see video?

Make sure the customer has not routed

video and audio to separate inputs.

YES

Does issue occur on

more than one disc?

Problem occurring on one disc indicates a problem with the disc.

Problem occurring on multiple discs could indicate a lens cleaner
is needed. The customer can purchase a lens cleaner at any
electronics retailer.

YES

Problem occur when

watching TV program?

Distorted audio from a TV program on a different channel or

input means there is a problem with the television. If a TV program
does have the audio, the problem may be the BD player, the cables
being used, or the TV itself.

YES

Does the problem occur

when DVD is connected to
another TV?

Audio is fine when the BD is connected to

another TV indicates the problem is with the television.
Refer to the owners manual for assistance
with connecting BD to another TV.

YES

Has the customer tried

another set of cables?

Have the customer try another set of cables. A bad cable can
also cause audio problems. Test the cable with another device to
the TV to also determine if the TV is bad. If BD is problem,
please see service chart for service information.

2-15

DIGITAL DISPLAY & MEDIA TRAINING MASTER

4-3. Humming/Clicking Noise
The unit is making a humming noise or a clicking noise.

Does the noise only

happen when a disc
is playing?

BDs make a slight hum when playing discs.

A clicking noise or a noise interfering with audio may indicate a problem.
Try multiple discs. Multiple discs with the same issue
means the BD may need service or be professionally cleaned.
Check BD service for service instructions.

YES

Does the noise happen

when the BD is turned on?

Check to see if a disc is inserted into the BD and eject the disc.
A humming or clicking noise when the disc is not inserted
may be a cooling fan. Check OM to see if cooling fan is present.
If not, unit will need service. See BD service for service instructions.

4-4. Audio/Video Out of Synch

The audio and video do not match up. People look to be talking, but their voices are delayed by a few seconds.

Has the customer tried

multiple tapes and discs?

If the issue only shows up on one disc, then the problem is

with that disc. Have the customer try multiple tapes or discs.
If the issue happens on multiple discs and tapes,
then ask the customer to try a lens or a head cleaner.

YES

How are the cables

routed?

Make sure cables are routed properly.

Make sure audio and video cables are routed to the same source
(if possible). Routed audio and video to separate products
can cause a bit of a delay between the devices as not all devices
will process audio and video signals at the same speed.

YES

Has the customer

connected to another TV?

Ask the customer to connect the product to another TV.

If the issue persists, try another set of cables. If the issue still persists,
then the issue is with the unit. The unit will need service.
Arrange service following proper procedure.

2-16

DIGITAL DISPLAY & MEDIA TRAINING MASTER

5. MISCELLANEOUS
5-1. No Power
The unit will not turn on.
Is the unit plugged in?

Is the unit plugged in?

YES
Does the unit turn on
when the power button
is pressed on the unit?

See if the unit will turn on when the power button the unit is pressed.
If the unit turns on, then troubleshoot the remote control using
the Remote Control Not Working call flow.

Make sure the surge protector is plugged into a wall outlet.

Also make sure the surge protector is turned on or does not
need to be reset due to a recent surge.

YES

Is the unit plugged into

a surge protector?

YES

Does the unit work when

plugged into another outlet?

Test the unit in another outlet. If the unit works,

then the problem is the outlet where the unit was connected.
If the issue is the BD, then set up service for BD according to
BD service guide.

YES

Have there been any lightning

strikes or power outages?

If BD failed due to lightning strike or a power surge,

this is not covered by warranty. Follow guidelines
for service for a BD out of warranty.

2-17

LGE Internal Use Only

DIGITAL DISPLAY & MEDIA TRAINING MASTER

5-2. Disc Error
The unit displays disc error when a disc is inserted into the BD player.

Is the disc inserted into

the BD player properly?

Make sure the disc has been inserted into the BD player properly.
The player can not read a disc inserted into the unit upside down.

YES

What type of disc is

the customer using?

Determine the type of disc the customer is not able to play.

If the customer is using a store-bought movie BD,
then please skip the next three questions.
If its a recorded disc, move onto the next question.

YES

Did the customer burn

this disc in a DVD recorder?

Make sure the customer finalized the disc in the DVD recorder.
Make sure the type of disc the customer is using is compatible
with the BD player. If the customer initialized a DVD-RW in VR mode,
make sure the owners manual has the RW logo to show
compatibility for the VR format.

YES

Did the customer burn

the disc in a computer?

Make sure the customer burned a compatible format

(such as VCD, SVCD, or DivX). Make sure the file meets the
specifications required for the player to play the disc. Check the owners
manual for specifications. Disc may still not be compatible.
Refer customer to section of OM regarding burned discs.

YES

Has the customer tried

multiple discs?

One disc with the problem is a problem with the disc.

BD players can play scratched or dirty BDs (DVDs) and not have any
issues during playback. Multiple discs with the issue can mean
the lens on the BD player needs to be cleaned. Recommend a
lens cleaner. Service BD if lens cleaner was used.

2-18

DIGITAL DISPLAY & MEDIA TRAINING MASTER

5-3. Unit Locks Up
Unit does not respond to any commands.

Does the unit respond to

the buttons on the unit?

If the unit will turn on or off with the button on the unit,
troubleshoot the remote control. Please refer to
Remote Control Not Working call flow.

YES

Has the customer

reset the unit?

If the unit does no respond to any buttons,

then reset the unit by unplugging it for 15 to 30 seconds.
If the unit does not respond after the reset,
arrange for service on the BD.

5-4. Disc Stuck

A BD disc is stuck in the unit.

Does the open/close button

on the unit work?

Press the open/close button on the unit. If the disc ejects,

troubleshoot the remote using the Remote Control
not working call flow.

Ask the customer to reset the unit by unplugging the unit

from the electrical outlet for 15 to 30 seconds. If the disc
remains stuck in the unit after the reset, the unit will need service.

YES

Has the customer

reset the unit?

2-19

DIGITAL DISPLAY & MEDIA TRAINING MASTER

5-5. Remote Control Not Working

Does the unit respond to

buttons on the front of the unit?

If the buttons on the front of the unit do not respond,

determine if the product has locked up or if the unit will not turn on.
The problem is not the remote control. Make sure the remote control is
the remote that goes with that particular model.

YES

Does the remote control

any component?

Determine which product the remote is not working.

The customer may need to press the appropriate mode button
to make the remote operate another component. The remote may
even need to be programmed to the other component,
especially if the batteries were just changed.

YES

Have the batteries

been changed?

Ask the customer to change batteries.

Make sure the batteries are new and fresh.
The batteries do not need to come from a spare battery drawer.
Do not mix used and new batteries.

YES

Is the remote working

at all?

If the remote does not work anything, then walk the customer
through a remote drain. Remove the batteries from the remote control.
Then press and hold any button down for a minute.
This will drain the power out of the remote and reset it.
Universal remotes will have to be reprogrammed.

YES

Does any remote

work the unit?

If another remote works the unit, then follow

the procedure to FOC the customer a new remote.
If two remotes do not work the unit, the unit will need service.

YES

Does the customer want to

program their remote?

Please refer to the OM for instructions on how to

program remote to TV. Customer wants to program a remote
other than Zenith or LG, the customer will need to contact
the manufacturer of the remote control. Codes do not work,
remote is not compatible.

2-20

DIGITAL DISPLAY & MEDIA TRAINING MASTER

5-6. Will Not Play Disc
The unit will not play a disc when a disc is inserted into the player.

Is the disc inserted into

the BD player properly?

Make sure the disc has been inserted into the BD player properly.
The player can not read a disc inserted into the unit upside down.

YES

What type of disc is

the customer using?

Determine the type of disc the customer is not able to play.

If the customer is using a store-bought BD, then please skip the
next three questions. If its a recorded disc,
move onto the next question.

YES

Did the customer burn this

disc in a DVD recorder?

YES

Did the customer burn

the disc in a computer?

Make sure the customer burned a compatible format

(such as VCD, SVCD, or DivX). Make sure the file meets the
specifications required for the player to play the disc.
Check the owners manual for specifications. Disc may still not be
compatible. Refer customer to section of OM regarding burned discs.

YES

Has the customer tried

multiple discs?

One disc with the problem is a problem with the disc.

BD players can play scratched or dirty BDs (DVD s) and not have any
issues during playback. Multiple discs with the issue can mean the lens on
the BD player needs to be cleaned. Recommend a lens cleaner.
Service BD if lens cleaner was used.

2-21

DIGITAL DISPLAY & MEDIA TRAINING MASTER

5-7. Disc Freezes or Skips
The audio and video freeze and skip during play back of a BD or DVD disc.

Is the disc inserted into

the BD player properly?

Make sure the disc has been inserted into the BD player properly.
The player can not read a disc inserted into the unit upside down.

YES

What type of disc is

the customer using?

Determine the type of disc the customer is not able to play.

If the customer is using a store-bought BD,
then please skip the next three questions. If its a recorded disc,
move onto the next question.

YES

Did the customer burn this

disc in a DVD recorder?

YES

Did the customer burn

the disc in a computer?

Make sure the customer burned a compatible format

YES

Has the customer tried

multiple discs?

One disc with the problem is a problem with the disc.

BD players can play scratched or dirty BDs (DVD s) and not have any
issues during playback. Multiple discs with the issue can mean the lens on
the BD player needs to be cleaned. Recommend a lens cleaner.
Service BD if lens cleaner was used.

2-22

DIGITAL DISPLAY & MEDIA TRAINING MASTER

5-8. Can Access Menu, but Not Play a Movie
The disc menu is displayed but the disc will not play.

Check the system information

screen of the BD player.

Go into the system information screen of the BD player.

To access this menu, bring up the main menu. Go to TV aspect,
highlight 16:9, press 1397139 and hit enter. If sold in the US,
this should be DVD region code 1 and BD region code A.
In case of HD-DVD, there is no region code.

YES

What is the region code of

the BD disc?

If the region code of the BD disc is not A, then the BD disc

will not play on a player sold in the US. The player can play only
BD discs labeled same as the rear of the unit.

If the region code of the DVD disc is not 1, then the DVD disc
will not play on a player sold in the US. The player can play only
DVD discs labeled same as the rear of the unit.

YES

What is the region code of

the DVD disc?

YES

Is the disc locking up on a

disclaimer screen when the
customer presses play?

The disc locking up on a feature needs to be reported to Q&E.

See instructions on reporting problems to Q&E. For a work
around the problem, advise the customer to access the chapter list.
Start play back from chapter 1 to start the movie and avoid any
feature lock ups.

5-9. Reporting a problem to Quality & Engineering

Reporting a problem that may require a firmware update to fix.

How do I report a problem to

Quality and Engineering?

Get the micom version from the system information screen.

Get the ISBN number from the back of the BD box cover
(the number under the barcode). Get the exact problem
the customer is describing Email this information to Matt Wedgman
so the issue can be reported to the factory.

2-23

DIGITAL DISPLAY & MEDIA TRAINING MASTER

5-10. Aspect Ratio
The customer has bars on the top and bottom of the screen, the left and right of the screen, or both.

Is the movie
wide screen or
full screen?

A full screen movie played on a wide screen TV will have bars

on the left and right side of the TV. The customer needs to
make sure they choose the appropriate type of movie
they want to view.

YES

What is the aspect

ratio of the DVD disc
being played?

If the aspect ratio is 1.33:1 then the movie is set up for full screen
viewing. Bars will appear on the left and right side of the screen
if the TV is wide screen. If the aspect ratio is 1.85:1 or 2.35:1,
then there will be bars on the top and bottom as that ratio is
bigger than widescreen TVs (1.78:1).

YES

What is the aspect

ratio of the BD player
set at?

Make sure the BD player aspect ratio is set to

the appropriate setting, depending on the aspect ratio of the TV.
If the customer chose 4:3 Letterbox, then bars will appear on the top
and bottom. The customer can choose the panscan setting to
get rid of the bars.

YES

What is the resolution

of the BD player set at?

Try changing the resolution to 480i/p. 720i/p, 1080i

and 1080p resolution require a widescreen aspect ratio
which means bars will be placed on the left and right side
for full screen movies.

YES

What is the aspect ratio of

the television set at?

Make sure the aspect of the television is set appropriately.

If the aspect ratio of the television is set at 4:3 when the TV
is wide screen, then a wide screen movie will show up as
letterbox with bars on the top and bottom and bars on the sides.

2-24

DIGITAL DISPLAY & MEDIA TRAINING MASTER

5-11. My Unit Wont be up-converted
The customer has a problem with getting the unit to change resolutions to 480i/p, 720i/p, 1080i, or 1080p.

Is the disc
currently playing?

Ask the customer to press stop to stop the disc from playing.
Ask the customer to press the resolution button to change the resolution.
The BD player will not change resolutions while the disc is playing.

YES

Is the customer using

component (red, blue,
and green) cables?

Copy protection Discs cant be up-converted above 480p

when using component cables. The component output does not have
HDCP (high bandwidth digital content protection) compliancy
which causes the BD player to switch from 720p or 1080i to 480p.

YES

Is the customer using

any sort of adapter cable?

RGB to DVI or RGB to HDMI adapters will not up-convert

RGB outputs and inputs are not HDCP compliant. If the customer sees
an error message about HDCP, this is the issue. Copy protected discs
will not be up-converted when HDCP is not found on the input or output.

YES

Is the customer using

an HDMI or DVI cable?

Regular discs can be converted to 1080p just through the HDMI output.
The TV must have HDCP compliancy on the HDMI input.
The display has to accept the resolution (480i/p, 720i/p, 1080i, or 1080p).

Some movie companies will not allow their discs to upconvert

past 480p. If only one disc poses a problem, then the issue is the disc.
The customer will need to try multiple discs.

YES

Is the customer using an

HDMI to DVI cable?

YES

Has the customer tried

multiple discs?

One disc not upconverting means the disc may not upconvert.
Some movie companies will not allow their discs to upconvert.
If multiple discs display the issue, remove the disc and change
the resolution with no disc in the unit.
If resolution will not change, the unit needs service.

2-25

DIGITAL DISPLAY & MEDIA TRAINING MASTER

6. BLU-RAY PLAYER
6-1. Slow Loading Times for BDs

Why does it take so long

to load my BDs?

When a customer switches from one disc to another,

the lens have to be changed what causes the delay.
BLU-RAY require different lasers to read the discs.

The booting times for the BD is under 15 seconds.

When the set is booted,
it takes a little long time to loading the OS program.

6-2. Booting Times

Why does it take

so long to boot my BD?

2-26

ONE POINT REPAIR GUIDE

1. NO POWER PROBLEM
No power problem occurs when you power on the unit.

1-1. Fuse & Bridge diode

1-1-1. Solution
Replace F901, BD901 on SMPS board.

1-1-2. How to troubleshoot (Countermeasure)

1) Look at the physical of fuse F901.
2) Check the bridge diode BD901.

No Power
BD901 is Defective

No Power
F901 is Defective

1-1-3. Service hint (Any picture / Remark)

BD901

F901

< Fuse, F901 >

Can look at physical condition.

< SMPS board top view >

2-27

ONE POINT REPAIR GUIDE

No power problem occurs when you power on the unit.

1-2. VFD, 14 VA, 6 VA, 3.8 VA

1-2-1. Solution
Replace D922, D923, D924, D925, D926, D927, IC901.

1-2-2. How to troubleshoot (Countermeasure)

Case
Case
Case
Case
Case

1)
2)
3)
4)
5)

FLD abnormal: Check D926, D927, ZD951, ZD952, FR952 and replace it.
6 VA abnormal: Check D924 and replace it.
14 VA abnormal: Check D925 and replace it.
3.8 VA abnormal: Check D922, D923 and replace it.
All voltage abnormal: Check IC901 and replace it.
Vkk No Power

FLD No Power

D926 is Defective

D927 is Defective

No D
ZD95

Case 1
(D927, D926,
ZD951, ZD952)

No Power
D904 is Defective

Case 2
(D924)

6VA No Power
D924 is Defective

Case 4
(D923, D922)

Case 5
(IC901)

Case 3
(D925)

3.8 V
D923,

14 V

1-2-3. Service hint (Any picture / Remark)

Case 3
(D925)
Case 4
(D923, D922)

Case 5
(IC901)

Case 2
(D924)

Case 1
(D927, D926, ZD951, ZD952)
< SMPS board top view >

< SMPS board bottom view >

2-28

ONE POINT REPAIR GUIDE

2. NO BOOTING WHEN YOU TURN THE UNIT ON, NO MESSAGE OR
WELCOME ON FRONT PANEL

When you turn on your set, it will blank / no message on front panel, and stand-by led no working.

2-1. IC101 (NO 3.8 VA & 3.3 VA)

2-1-1. Solution
Replace IC101 on MAIN board.

2-1-2. How to troubleshoot (Countermeasure)

1)
2)
3)
4)

Please check 3.8 VA of IC101.

If 3.8 VA is abnormal, please check SMPS 3.8 VA and D101 diode.
If 3.8 VA is OK, but 3.3 VA is abnormal, replace D101 diode.
If 3.8 VA, 3.3 VA is OK, check X101 crystal signal.

2-1-3. Service hint (Any picture / Remark)

X101

IC101

< MAIN board top view >

D101

< MAIN board bottom view >

2-29

ONE POINT REPAIR GUIDE

When you turn on your set, it will blank / no message or Welcome on front panel, and it will not boot-up.

2-2. IC151 (NO 3.3 V)

2-2-1. Solution
Replace IC151 on MAIN board.

2-2-2. How to troubleshoot (Countermeasure)

1) Please check 3.8 VA of IC151 pin2 (VIN).
2) If 3.8 VA is abnormal, please check SMPS 3.8 VA.
3) If 3.8 VA is OK, but 3.3 VA is abnormal at the IC151 pin3 (VOUT), replace IC151.

2-2-3. Service hint (Any picture / Remark)

IC151

< MAIN board top view >

2-30

ONE POINT REPAIR GUIDE

When you turn on your set, it will blank / no message or Welcome on front panel, and it will not boot-up.

2-3. IC150 (NO 1.5 V)

2-3-1. Solution
Replace IC150 on MAIN board.

2-3-2. How to troubleshoot (Countermeasure)

1) Please check 1.5 V of IC150 on MAIN board.
2) If 1.5 V voltage doesnt come out,
- Check IC150 pin13 (VCC 14 VA).
If there is no 14 VA, please check 14 VA from SMPS.
3) If VCC input IC150 there are 14 VA signal,
First of all, check the pin15 is high and if its high, check R1F4, R1F5, R1F9, R1G4, C1G7, L1E0
and if theres no defective component, please replace IC150.
4) After changing it, if the set is still not booting:
- Check 1.2 V / 3.3 V is normal. (please refer to other sections of this guide)
- Check crystal X501 refer to item 2-5.
- Check NAND flash IC (IC504) refer to item 2-6.
- Check DDR IC (IC502, IC503) refer to item 2-7.
- Check MT8560 IC (IC501) refer to item 2-8.

2-3-3. Service hint (Any picture / Remark)

IC150

< MAIN board top view >

2-31

ONE POINT REPAIR GUIDE

When you turn on your set, it will blank / no message on front panel, and it will not boot-up.

2-4. IC155 (NO 1.2 V)

2-4-1. Solution
Replace IC155 on MAIN board.

2-4-2. How to troubleshoot (Countermeasure)

1) Please check 1.2 V of IC155 on MAIN board.
2) If 1.2 V voltage doesnt come out,
- Check IC155 pin2 (VCC 14 VA).
If there is no 14 VA, please check 14 VA from SMPS.
3) If VCC input IC155 there are 14 VA signal,
First of all, check the pin6 is high and if its high, check R1G7, R1G8, R1C9, L1E3, C1D2, C1B4
and if theres no defective component please replace IC155.
4) After changing it, if the set is still not booting:
- Check 1.5 V / 3.3 V is normal. (please refer to other sections of this guide)
- Check crystal X501 refer to item 2-5.
- Check NAND flash IC (IC504) refer to item 2-6.
- Check DDR IC (IC502, IC503) refer to item 2-7.
- Check MT8560 IC (IC501) refer to item 2-8.

2-4-3. Service hint (Any picture / Remark)

IC155

< MAIN board top view >

2-32

ONE POINT REPAIR GUIDE

When you turn on your set, it will display WELCOME on front panel, and it will not boot-up normally.

2-5. X501
2-5-1. Solution
Replace X501 on MAIN board.

2-5-2. How to troubleshoot (Countermeasure)

1)
2)
3)
4)

Please check the soldering status of 27 MHz crystal (X501).

Please check the frequency of 27 MHz crystal (X501).
If the crystal doesnt oscillate, replace X501.
After changing it, if the set is still not booting:
- Check NAND flash IC (IC504) refer to item 2-6.
- Check DDR IC (IC502, IC503) refer to item 2-7.
- Check MT8560 IC (IC501) refer to item 2-8.

2-5-3. Service hint (Any picture / Remark)

X501

< MAIN board top view >

2-33

ONE POINT REPAIR GUIDE

When you turn on your set, it will display WELCOME on front panel, and it will not boot-up normally.

2-6. IC504 (NAND FLASH MEMORY)

2-6-1. Solution
Replace IC504 on MAIN board.

2-6-2. How to troubleshoot (Countermeasure)

1) Please check physical status of IC504 on your eyes.
2) Check the VCC (3.3 V) of IC504 and if its normal please replace IC504.
(Please make sure IC504 has proper program.)
3) After changing it, if the set is still not booting:
- Check DDR IC (IC502, IC503) refer to item 2-7.
- Check MT8560 IC (IC501) refer to item 2-8.

2-6-3. Service hint (Any picture / Remark)

IC504

< MAIN board bottom view >

2-34

ONE POINT REPAIR GUIDE

When you turn on your set, it will display WELCOME on front panel, and it will not boot-up normally.

2-7. IC502, IC503 (DDR3 MEMORY)

2-7-1. Solution
Replace IC502, IC503 on MAIN board.

2-7-2. How to troubleshoot (Countermeasure)

1) Please check 0.75 V of DDR3_VREF. (between C545 and C546).
Please check 0.75 V of DDR3_VREF. (between C547 and C548).
Please check 1.5 V of IC502, IC503.
2) If it doesnt work even though IC150, IC151, IC155 are no problem,
IC502, IC503 (DDR memory) could have problem.
3) After changing it, if the set is still not booting:
- Check MT8560 IC (IC501) refer to item 2-8.
- Check MAIN board refer to item 2-9.

2-7-3. Service hint (Any picture / Remark)

IC501

IC503

< MAIN board bottom view >

C546

C545

C548

C547

< MAIN board top view >

2-35

IC502

ONE POINT REPAIR GUIDE

When you turn on your set, it will display WELCOME on front panel, and it will not boot-up normally.

2-8. IC501 (MPEG IC)

2-8-1. Solution
Replace IC501 on MAIN board.

2-8-2. How to troubleshoot (Countermeasure)

1) Please check 1.2 V of C595 on MAIN board.
Please check 3.3 V of C580 on MAIN board.
Please check 1.5 V of C525 on MAIN board.
2) If it doesnt work even though IC150, IC151, IC155 are no problem,
IC501 MT8560 could have problem.
3) After changing it, if the set is still no booting, check MAIN board refer to item 2-9.

2-8-3. Service hint (Any picture / Remark)

C525
(1.5 V)

C580
(3.3 V)

< MAIN board top view >

C595
(1.2 V)

< MAIN board bottom view >

2-36

IC501

ONE POINT REPAIR GUIDE

When you turn on your set, it will display WELCOME on front panel, and it will not boot-up normally.

2-9. MAIN BOARD

2-9-1. Solution
Replace MAIN board.

2-9-2. How to troubleshoot (Countermeasure)

1) Please remove IC501 and IC502, IC503, IC504 and then check the Impedance between each signal
(DATA, ADDRESS, and so on).
2) If there is some Impedance (a few or infinite ) especially power source trace,
PCB via might be broken. Youd better replace MAIN board.

2-9-3. Service hint (Any picture / Remark)

IC501

IC504

< MAIN board bottom view >

2-37

IC503

IC502

ONE POINT REPAIR GUIDE

3. WIRED NETWORK CONNECTION ERROR

When you connect online service (like You-tube or Netflix2.1) through the wired LAN,
the no connection message appears.

3-1. JK250 (ETHERNET JACK)

3-1-1. Solution
Replace JK250 on MAIN board.

3-1-2. How to troubleshoot (Countermeasure)

1)
2)
3)
4)
5)

Check you internet connection. Make sure it connect properly to modem or router.
If internet connection OK, please check the Ethernet jack (JK250).
If there is soldering problem, please re-soldering pin JK250.
If after re-soldering problem still occurs, replace JK250.
If problem still occurs after replace JK250. Check MT8560 IC (IC501). Refer to item 2-8.

3-1-3. Service hint (Any picture / Remark)

JK250

< MAIN board top view >

2-38

ONE POINT REPAIR GUIDE

4. WIRELESS NETWORK CONNECTION ERROR

When you connect online service (like You-tube or Netflix2.1) through the Wi-Fi,
the no connection message appears.

4-1. Wi-Fi MODULE

4-1-1. Solution
Replace Wi-Fi module on FRONT panel.

4-1-2. How to troubleshoot (Countermeasure)

1)
2)
3)
4)
5)

Check you internet connection. Make sure it connect properly to modem or router.
If internet connection OK, please check the CN252.
If there is soldering problem, please re-soldering pin CN252.
If after re-soldering problem still occurs, replace Wi-Fi module.
If problem still occurs after replace Wi-Fi module. Check MT8560 IC (IC501). Refer to item 2-8.

4-1-3. Service hint (Any picture / Remark)

CN252
< MAIN board top view >

< Wi-Fi module >

2-39

ONE POINT REPAIR GUIDE

5. BAD HDMI VIDEO / AUDIO OUTPUT

When unit is connected to HDMI TV using HDMI cable, picture shows bad color, no output or mixed
color on the screen. But component output is OK.

5-1. CN803 (HDMI JACK)

5-1-1. Solution
Replace CN803 (HDMI Jack).

5-1-2. How to troubleshoot (Countermeasure)

1) Check CN803 pin soldering.
2) If there is short soldering on pin CN803, re-soldering pin CN803.
3) If problem still occurs, check HDMI data.
- If all data OK, replace CN803.
- If data NG, check set on BD mode:
Replace IC501.

5-1-3. Service hint (Any picture / Remark)

HDMI OUT

HDMI IN

CN803

< MAIN board top view >

2-40

ONE POINT REPAIR GUIDE

6. NO AUDIO FROM SPEAKER
When unit is connected to speaker, no audio from speaker.

6-1. IC602 (PWM IC)

6-1-1. Solution
Replace IC602 (PWM IC).

6-1-2. How to troubleshoot (Countermeasure)

1) Check IC602 pin soldering.
2) If there is short soldering on pin IC602, re-soldering pin IC602.
3) If problem still occurs, check AMP IC (IC700, IC701, IC702, IC703).
- Check IC700, IC701, IC702, IC703 pin soldering.
- If soldering ok, check the AMP heat sink:
Replace IC700, IC701, IC702, IC703.

6-1-3. Service hint (Any picture / Remark)

IC602 (PWM IC)

AMP IC (IC700, IC701, IC702, IC703)

< AMP board top view >

< AMP heat sink view >

2-41

ONE POINT REPAIR GUIDE

7. NO USB
When unit is connected to USB, no audio and video from SET.

7-1. IC501 (MT8560)

7-1-1. Solution
Replace IC501 (MT8560).

7-1-2. How to troubleshoot (Countermeasure)

1) Check CN202 connector and FFC cable.
2) If there is short soldering on CN202, re-soldering CN202.
3) If problem still occurs, check 5 V (CN202 pin4 ~ pin8).
- If no output, check IC150 on MAIN board.
- If OK, check USB1+, USB1- signal.
- If there is no signal, replace IC501.

7-1-3. Service hint (Any picture / Remark)

CN202
pin4 ~ pin8 : 5 V
pin10 : USB1+
pin11 : USB1< JACK board top view >

CN202
pin4 ~ pin8 : 5 V
pin10 : USB1+
pin11 : USB1< JACK (W/O MIC) board bottom view >
2-42

ELECTRICAL TROUBLESHOOTING GUIDE

1. SYSTEM POWER SUPPLY ON SMPS BOARD
No 3.8 VA
YES

Is F901 normal?

Replace F901 (same fuse).

YES

Is TH901 normal ?

Replace TH901.

YES

Is BD901 normal?

Replace BD901.

YES

Is the VCC
(11 V ~ 25 V) supplied to IC901
pin4?

Is D922 / D923 normal?

Check or replace D922 / D923.

YES

Power line of MAIN PCB is short.

2-43

ELECTRICAL TROUBLESHOOTING GUIDE

No 6 VA
YES

Is F901 normal?

Replace F901 (same fuse).

YES

Is TH901 normal ?

Replace TH901.

YES

Is BD901 normal?

Replace BD901.

YES

Is the VCC
(11 V ~ 25 V) supplied to IC901
pin4?

Is D924 normal?

Check or replace D924.

YES

Power line of MAIN PCB is short.

2-44

ELECTRICAL TROUBLESHOOTING GUIDE

No 14 VA
YES

Is F901 normal?

Replace F901 (same fuse).

YES

Is TH901 normal ?

Replace TH901.

YES

Is BD901 normal?

Replace BD901.

YES

Is the VCC
(11 V ~ 25 V) supplied to IC901
pin4?

Is D925 normal?

Check or replace D925.

YES

Power line of MAIN PCB is short.

2-45

ELECTRICAL TROUBLESHOOTING GUIDE

2. AMP POWER SUPPLY ON SMPS BOARD
No 36 VA / 26 VA
YES

Is the P-CTL normal?

Check MICOM IC.

YES

Is the VCC
(11 V ~ 25 V) supplied to IC902
pin7?

Is Q910 normal?

YES

Check or replace Q910.

Is IC902 normal?

Replace IC902.

YES

Is Q901 normal?

Replace Q901.

YES

Is D928 normal?

YES

Power line of MAIN or AMP PCB is short.

2-46

Replace D928.

ELECTRICAL TROUBLESHOOTING GUIDE

3. POWER SUPPLY ON MAIN BOARD
No 3.3 V
YES

Is the
VCC supplied to IC151
pin2?

Check 3.8 VA on SMPS board.

YES

Is there
signal at IC151
pin1?

Check IC101 pin58 (DCDC33_CTRL).

YES

Check IC151 and replace.

3.3 VA (3.3VA_MICOM)
YES

Is D101 diode input

supply 3.8 VA?

YES

Check D101 and replace.

2-47

Check 3.8 VA on MAIN board.

ELECTRICAL TROUBLESHOOTING GUIDE

No 12 V (12V_LOADER)
YES

Is the
VCC supplied to IC156
pin2?

Check 14 VA on SMPS board.

YES

Is there
signal at IC156
pin1?

Check IC101 pin68 (LDO_CTRL).

YES

Check IC156 and replace.

No 9.5 V (A9P5V)
YES

Is the
VCC supplied to IC702
pin2?

Check 14 VA on SMPS board.

YES

Is there
signal at IC702
pin1?

YES

Check IC702 and replace.

2-48

Check IC101 pin61 (PWR_CTRL).

ELECTRICAL TROUBLESHOOTING GUIDE

No 5 V (5V_LOADER)
YES

Is the
VCC supplied to IC703
pin2?

Check 6 VA on SMPS board.

YES

Is there
signal at IC703
pin1?

Check IC101 pin61 (PWR_CTRL).

YES

Check IC703 and replace.

No 1.8 V (DVDD18_TX / PVDD18_TX)

IC801, IC806 HDMI
YES

Is the
VCC supplied to IC802, IC803
pin3?

YES

Check IC802, IC803 and replace.

2-49

Check IC151 pin3 (VCC_3V3).

ELECTRICAL TROUBLESHOOTING GUIDE

No 1.8 V (DSP VDD18) IC401 DSP

YES

Is the
VCC supplied to IC405
pin3?

Check IC151 pin3 (VCC_3V3).

YES

Check IC405 and replace.

No 5 V (SYSTEM VCC_5V)
YES

Is the
VCC supplied to IC153
pin2?

Check 6 VA on SMPS board.

YES

Is there
signal at IC153
pin1?

YES

Check IC153 and replace.

2-50

Check IC101 pin68 (LDO_CTRL).

ELECTRICAL TROUBLESHOOTING GUIDE

No 5 V (MIC AVCC_5V)
YES

Is the
VCC supplied to IC154
pin2?

Check 6 VA on SMPS board.

YES

Is there
signal at IC154
pin1?

Check IC101 pin68 (LDO_CTRL).

YES

Check IC154 and replace.

No 5 V (5V_IPOD / USB_5V)
YES

Is the
VCC supplied to IC150
pin8?

Check 14 VA on SMPS board.

YES

Is there
signal at IC150
pin6?

YES

Check IC150 and replace.

2-51

Check IC101 pin68 (LDO_CTRL).

ELECTRICAL TROUBLESHOOTING GUIDE

No 1.5 V
YES

Is the
VCC supplied to IC150
pin13?

Check 14 VA on SMPS board.

YES

Is there
signal at IC150
pin15?

Check IC101 pin59 (DCDC15_CTRL).

YES

Check IC150 and replace.

No 1.2 V
YES

Is the
VCC supplied to IC155
pin2?

Check 14 VA on SMPS board.

YES

Is there
signal at IC155
pin6?

YES

Check IC155 and replace.

2-52

Check IC101 pin60 (DCDC12_CTRL).

ELECTRICAL TROUBLESHOOTING GUIDE

4. SYSTEM PART
Power on
YES

Stand-by LED
OK?

3.3 VA, 3.8 VA

OK?

Check D101
and 3.8 VA on SMPS board.

Check IC101 / IC150 / IC151 /

IC155 and SMPS board.

Replace X501.

YES
IC101: 3.3 VA /
IC150 : 1.5 V / IC151 : 3.3 V /
IC155 : 1.2 V OK?

YES

X501
27.000 MHz
OK?
YES

Main Board

Replace IC501 MT8560.

YES

3.8 VA, 3.3 VA

OK?

Check D301
and CN305 pin11.

YES

IC3T1 3.3 VA OK?

Check IC3T1.

Front Board
4A
2-53

ELECTRICAL TROUBLESHOOTING GUIDE

LG Logo
display on monitor
OK?

IC101: 3.3 VA /
IC150 : 1.5 V / IC151 : 3.3 V /
IC155 : 1.2 V OK?

Check IC101 / IC150 / IC151 /

IC155 and SMPS board.

YES

X501
27.000 MHz
OK?

Replace X501.

YES

Signal
NF_ALE, NF_CLE
OK?

YES

Replace IC504
(NAND Flash).

Proper display
cable connect.

YES

Replace IC501 MT8560

or IC502, IC503.

4B
YES

LG Logo
display on monitor
OK?

Display
cable connection
OK ?

YES

System part OK.

2-54

ELECTRICAL TROUBLESHOOTING GUIDE

5. NO CVBS VIDEO OUTPUT
No CVBS / COMPOSITE
video on display
YES

Is there
CVBS signal
on L2V1?

Check IC501s VCC

or replace IC501.

YES

Is there
CVBS signal out
of L2V1?

Replace L2V1.

YES

Is there
signal on D201?
YES

Check JK251
and RCA cable connection.

D201
5 V OK?

YES

Replace D201.

2-55

Check IC153.

ELECTRICAL TROUBLESHOOTING GUIDE

6. NO HDMI OUTPUT
No HDMI audio / video output
YES

IC801, IC806
VCC 3V3 & 1.8 V
OK?

Check VCC 3V3 & 1.8 V

IC802, IC803, IC151.

YES
IC101
HDMI_SDA, SCL, HDMI_RST
CEC_RX&TX, HDMI_RX_INT
OK?

Check IC101.

YES

CN803 pin18
VCC 5 V OK?

Check VCC 5 V from IC153.

YES

CN803 pin19 HPD

about 3.3 V OK?

Check hot plug detect signal from TV.

YES

Is there signal on
pin1, 3, 4, 6, 7, 9, 10, 12?

YES

HDMI output OK.

2-56

Check IC501 MT8560 VCC or replace

IC501 MT8560, IC801, IC806 HDMI IC.

ELECTRICAL TROUBLESHOOTING GUIDE

7. NO AUDIO OUTPUT
No AUDIO output
YES

IC602
3.3 V OK?

Check IC601 pin2 supply 3.8 VA and pin1.

YES

X600
19.2 MHz OK?

Replace X600.

YES

IC602 pin4, 5, 6, 7, 8, 9
I2C data OK?

Check IC101
and IC401 pin47, 48, 49, 51, 52, 54.

YES

IC700, IC701, IC702, IC703

36 V, 12 V OK?

Check SMPS 36 V and IC600 12 V.

YES

CN600
pin11, 20, 21, 22, 24
OK?

YES

Replace IC700, IC701, IC702, IC703.

2-57

Check IC101.

WAVEFORMS
1. SYSTEM PART - 1

IC501 MT8560 X-TAL 27 MHz

2-58

2. SYSTEM PART - 2 (SYSTEM MEMORY)

4
IC501 MT8560 BA0

3
2

IC501 MT8560 WE#

IC501 MT8560 CAS#

IC501 MT8560 CK
2-59

3. VIDEO PART (100% FULL COLOR BAR)

CVBS

2-60

4. AUDIO PART - 1 (S/PDIF)

CS8422_AUDIO_SPDIF IN

2-61

5. AUDIO PART - 2 (I2S)

9
8
10
11

t jsr

ijr

sy jr

11 kh{ hW

2-62

6. HDMI PART

H_SDA

14
15

H_SCL

HDMI_CLK_N

HDMI_0_N
2-63

MEMO

2-64

CN150

CN254

24P FFC
CABLE
(MAIN AMP)

CN250

MAIN

CN251

AMP
14PIN HARNESS
CABLE
(MAIN SMPS)

8PIN B'd to B'd

CN901

CN252

18PIN FFC
CABLE
(MAIN JACK)

: HARNESS

CN600

CN401

WIRING DIAGRAM

8PIN FFC
CABLE
(MAIN BT)

SMPS

5PIN HARNESS
CABLE
(MAIN - Wi-Fi)

JACK

CN305

CN202

Wi-Fi

: FFC

Bluetooth

18PIN FFC
CABLE
(MAIN FRONT)

OPTIONAL PART
2-65

2-66

FRONT
TOUCH

PWR

BLOCK DIAGRAMS

1. OVERALL BLOCK DIAGRAM

12C(1)

3.3/5V

Master

6ch ADC

- Decoding
- Processing

CS5346
SPDIF

Optical
HDMI IN

ARC_SPDIF

ARC

(Data0)

I2S

1.2/1.5/3.3V/3.3VA
EPHY_TDP/N,
EPHY_RDP/N
3.3V

MT8560

27MHZ

ARM11 1000DMIPS

3.3V

Wireless Option
I2S

(D0,1,2)

IM-421A

TMDS1 HDMI RX
HPD
DDC
SPDIF

RF,A,B,C,D,E,F

Motor
Driver
(9ch)

SPDIF

CP Chip

I-POD/PAD

DEPTH
0,1,2,3

3DSZ

DDR3
128MB
256MB

NAND
512MB(SLC)

ARC

3.3V

TMDS3

TMDS2

1.5V

2-67

3.3V

Wireless
TX Module

I2S

EEP-ROM I2C

3.3V_M

MICOM

UART

CEC

HDMI IN #1

12C)
W.LESS

SPI(1)

uPD78F1166(NEC)
HDMI TX

TPIC2050

3.3/5/9.5/12V

MCSLogic MB0402C0

I2S

D1+,D1-, 5V

H/H SLOT LOADING

(SLOT)

UA
RT

D3+,D3-,5V

TAS5624
Bridge
150W

Bluetooth (RX) Option

I2S

Ralink RT5370 1x2 SB

WI-FI
MODULE

12C(1)

ARC

Ethernet

TAS5624
Bridge
150W

McASP0 Rx

MIC_Det

CVBS

TAS5624
Bridge
150W

74ALVC244

MIC

I2S

19.2 MHZ

PS9855

HPD A,B

ADC
CS5340

TMDS

S4308

(D0~D3)
I2S(8ch)

Sound Effect
Bass
Management
ChDelay
AV sync
Downmix

HDMI_SPDIF

TAS5624
150W

Flash

HDMI IN

Tuner

Audio DSP
CS495314

DIR
CS8422

I2S

3.3V

SDRAM

HDMI IN #2

LPF

32/12V

3.3V

Slave
XTI

Portable

1.2/3.3V

24.576 MHZ

12C(1)

Slave

AUX

12C(1)

3.3V

HDMI OUT

2-68

20MHZ

12C(1)

SPI(1)
DRIVER
MC3401
12C_Touch

12C_Touch

CYPRESS
CY8C20544

POWER

2. SMPS #1 BLOCK DIAGRAM

[U\}
TY^}
Rectifier
&
Smoothing
(Bridge,
CAPACITOR)

Snubber

System
Power IC

TRANS
EER2828

}rr

X[}h
\U]}

IC Application Circuit

ZU_}h

Filter
Section
(Varistor,
Resistor,
Line Filter
Thermistor)

}Tj{ys
wTj{ys

FL
FR
SW

Snubber

AMP Power IC

FET

w}kk

TRANS
AMP

Digital
Power
AMP

C
SL
SR

IC Application Circuit

3DL
3DR
2-69

5.1
CH

2-70

7.1
CH

3. SMPS #2 BLOCK DIAGRAM

Rectifier
&
Smoothing
(Bridge,
Capacitor)

Snubber

System
Power IC

TRANS
EER2828

IC Application Circuit

LPF

msORVTP

LPF

}rr

LPF

X[}h

LPF

\U]}

LPF

ZU_}h

Feedback

AC INPUT
(Varistor,
Resistor,
Line Filter
Thermistor)

wTj{ys

Control Circuit

Snubber

AMP Power IC

FET

TRANS
AMP

LPF

w}kk

IC Application Circuit

AC
Feedback
2-71

2-72

}Tj{ys

4. AUDIO BLOCK DIAGRAM

VCC_3V3
VCC_3V3
3V3_MICOM

MICOM
UPD78F1166
TUNER_SCLK
TUNER_SNS
TUNER_RST

TUNER_TNT

Noise
Filter

AUX

AUX L/R

VCC_5V
VCC_3V3

Level
Matching

CS8422_INT

TUNER L/R

PWM_DAT

Noise
Filter

DIR_RST

Tuner

PWM_CLK

TUNER_SDIO

ADC
(CS5346)

Level
Matching

MPEG
MT8560

Level
Matching

DIR_DATA

DIR_BCK

DIR_LRCK

SDOUT

MCLK

VCC_3V3

DIR_MCLK

SLAVE

SCLK

Portable L/R

LRCK

Noise
Filter

Portable

VCC_3V3

DIR
CS8422

Optical

HDMI

DIRCLK_IN

ARC_SPDIF
ADV7511

MASTER
MAS
A TER

2-73

2-74

DSP
CS495314

5. SERVO BLOCK DIAGRAM

GAINSW1,VHAVC

PICK
UP
(BPT-421A)

MDI_BD, MDI_DVD/CD, TEMP

MT8560

A,B,C,D,E,F,G,H
RFO+, RFOLDD_SDIO,
LDD_CLK,
LDD_SEN
DET1,DET2
MD_SW3,TRAYIN#,TRAYOUT#
FOC1+/- FOC2+/- TR+/TL+/FMSO3, FMSO4,
CO_A+/- CO_B+/-

GAINSW2.FEGIO4

TPIC2050

CD_LD, DVD_LD,
BD_LD

M/D
(SBM
01BA)

SL1+/-, SL2+/LOAD+, LOAD-

( Serial I/F controlled

9ch motor-driver
with 3beam laser
diode driver )

U, V, W, COMMON

2-75

2-76

V14REF, MUTE1,
TLSO, DMSO, FOSO, TRSO,
FMSO, FMSO2
VRDC20, TRAYPWM

6. MIC BLOCK DIAGRAM

MIC_DET

MICOM
UPD78F1165

VCC_3V3
3V3_MICOM

MIC

AUK_
S4308
24.576 MHZ

MIC

SLAVE
VDD33
VDD18

MIC_SIG

DSPI_LRCK

VCC_3V3

DSPI_BCK

ADC
CS5340

MIC_DATA

SLAVE
I2C

27MHZ

SLAVE

MT8560

MIC_DATA

Audio DSP
CS495314

DSPI_MCLK
DSPO_LRCK
DSPO_BCK
DSPO_DATA [0~3]

- Decoding
- Processing
Sound Effect
Bass
Management
ChDelay
AV sync
Downmix

W_LRCK
W_BCK
W_DATA [0~3]

McASP0 Rx

1.2/1.5/3.3V

< AUDIO Signal + MIC Signal --> MIX >

2-77

PS9855
PWM IC

2-78

Wireless
Module

7. HDMI BLOCK DIAGRAM

RGB/HSYNC/VSYNC/CLK/DE

MT8560

TMDS1/DDC1/5V
HPD1

Micom

TMDS2/DDC2/5V
HPD2

Micom

RGB

HSYNC

VSYNC

CLK

ADV7614

FPGA

CEC

HDMI OUT

TX
ADV7511

XC6SLX45

Micom

TMDS/DDC/5V
HPD
HEAC+/-

TMDS3/DDC3/5V
HPD3

ARC_SPDIF

Micom
I2C

Depth[0:3]

I2S
SPI

DIR

I2S

Micom

DSP

I2S

2-79

2-80

8. AMP BLOCK DIAGRAM

Z]}
XY}

ZUZ}

mVs

Z_V Z`Gjo^

wz`_\\
kzw
syjsr
ijsr
hkh{hW
hkh{hX
hkh{hY
hkh{hZ

{hz\]Y[
OXP

yVs

[XV [YGjo_

ZkVs
Z]V Z^Gjo]

{hz\]Y[
OYP

ZZV Z[Gjo\

y
t
pYjsr
pYkh{h

ZWV ZXGjo[

{hz\]Y[
OZP

yVy

Y^V Y_GjoZ

tpjvt

X`UYto

ZkVy
Y\V Y]GjoY

{hz\]Y[
O[P

YYV YZGjoX
htwwku
htwzk
htwjspwW
htwjspwX
2-81

2-82

mVy

IMPORTANT SAFETY NOTICE

CIRCUIT DIAGRAMS

WHEN SERVICING THIS CHASSIS, UNDER NO

CIRCUMSTANCES SHOULD THE ORIGINAL DESIGN
BE MODIFIED OR ALTERED WITH OUT PERMISSION
FROM THE LG CORPORATION. ALL COMPONENTS
SHOULD BE REPLACED ONLY WITH TYPES
IDENTICAL TO THOSE IN THE ORIGINAL CIRCUIT.

1. SMPS CIRCUIT DIAGRAM

No Power
BD901 is Defective

SPECIAL COMPONENTS ARE SHADED ON THE NOTE :

SCHEMATIC FOR EASY IDENTIFICATION.
1. Shaded( ) parts are critical for safety. Replace only
THIS CIRCUIT DIAGRAM MAY OCCASIONALLY
with specified part number.
DIFFER FROM THE ACTUAL CIRCUIT USED. THIS
2. Voltages are DC-measured with a digital voltmeter
WAY, IMPLEMENTATION OF THE LATEST SAFETY
during Play mode.
AND PERFORMANCE IMPROVEMENT CHANGES
INTO THE SET IS NOT DELAYED UNTIL THE NEW
SERVICE LITERATURE IS PRINTED.

Vkk No Power

FLD No Power

No Digitron Displayed

D926 is Defective

D927 is Defective

ZD951, ZD952 are Defective

No Power
D904 is Defective
11

6VA No Power
D924 is Defective
10

3.8 VA No Power
9

D923, D922 are Defective

14 VA No Power
D921, D925 are Defective

No AMP Power
6

Switching Error

Q910, Q901 are Defective

PC901~PC903 are Defective

S/W Error
IC901, IC902 are Defective
5

Switching Error
IC903, IC904 are Defective
4

No Power
F901 is Defective

PVDD No Power
D928 is Defective

SMPS
EAX63689121, Rev1.5(7)
2012. 01. 04

Warning
Parts that are shaded are critical with
respect to risk of fire or electrical shock.

2-83

2-84

2. MAIN - CPU CIRCUIT DIAGRAM

9
8
10

10
11

1
9

4
3
8

5
7

CPU
EAX64508302(#2), Rev1.1(0)
2012. 03. 05

: WAVEFORM NUMBER
A

2-85

2-86

3. MAIN - MEMORY CIRCUIT DIAGRAM

MEMORY
EAX64508302(#3), Rev1.1(0)
2012. 03. 05

2-87

2-88

4. MAIN - LOADER CIRCUIT DIAGRAM

LOADER
EAX64508302(#4), Rev1.1(0)
2012. 03. 05

2-89

2-90

5. MAIN - MICOM CIRCUIT DIAGRAM

MICOM
EAX64508302(#5), Rev1.1(0)
2012. 03. 05

2-91

2-92

6. MAIN - HDMI CIRCUIT DIAGRAM

HDMI
EAX64508302(#6), Rev1.1(0)
2012. 03. 05

2-93

2-94

7. MAIN - ADC/DIR CIRCUIT DIAGRAM

7
11

ADC/DIR
EAX64508302(#7), Rev1.1(0)
2012. 03. 05

: WAVEFORM NUMBER
A

2-95

2-96

8. MAIN - DSP CIRCUIT DIAGRAM

1
DSP
EAX64508302(#8), Rev1.1(0)
2012. 03. 05
A

2-97

2-98

9. MAIN - POWER CIRCUIT DIAGRAM

POWER
EAX64508302(#9), Rev1.1(0)
2012. 03. 05

2-99

2-100

10. MAIN - I/O CIRCUIT DIAGRAM

I/O
EAX64508302(#10), Rev1.1(0)
2012. 03. 05

: WAVEFORM NUMBER
A

2-101

2-102

11. MAIN - 3DSZ CIRCUIT DIAGRAM

3DSZ
EAX64508302(#11), Rev1.1(0)
2012. 03. 05

2-103

2-104

12. MAIN - FPGA DDR CIRCUIT DIAGRAM

FPGA DDR
EAX64508302(#12), Rev1.1(0)
2012. 03. 05

2-105

2-106

13. MAIN - HDMI TX CIRCUIT DIAGRAM

14
5

HDMI TX
EAX64508302(#13), Rev1.1(0)
2012. 03. 05

: WAVEFORM NUMBER
A

2-107

2-108

14. AMP - PWM CIRCUIT DIAGRAM

PWM
EAX64585705(#1), Rev1.0(0)
2012. 03. 05

2-109

2-110

15. AMP - AMP CIRCUIT DIAGRAM

1
AMP
EAX64585705(#2), Rev1.0(0)
2012. 03. 05
A

2-111

2-112

16. JACK CIRCUIT DIAGRAM (OPTIONAL PART)

16-1. USB & PTB & MIC CIRCUIT DIAGRAM
12

JACK - USB & PTB & MIC

EAX64545101(#1), Rev1.2 (3)
2011. 12. 27

2-113

2-114

JACK CIRCUIT DIAGRAM (OPTIONAL PART)

16-2. USB & PTB CIRCUIT DIAGRAM
12

JACK - USB & PTB

EAX64562101(#1), Rev1.1 (1)
2011. 12. 27

2-115

2-116

17. FRONT CIRCUIT DIAGRAM

FRONT
EAX64645502(#1), Rev1.1(1)
2011. 12. 27

2-117

2-118

MEMO

CIRCUIT VOLTAGE CHART

Pin No.

Vin1

VCC

IC150 TPS65252
8

Vin1

14.1

LX1

5.16

LX2

1.52

Vin2

14.1

USB_VIN

USB_VO

IC151 TJ3966
2

Vin

3.82

Vout

3.31

IC153 LM27152
2

Vin

6.12

Vout

5.05

IC154 LM37102
2

Vin

6.12

Vout

5.09

IC155 AOZ1051
2

Vin

14.15

Vout

1.23

IC702 LM37102
2

Vin

14.1

Vout

9.51

IC703 LM37102
2

Vin

14.1

Vout

5.12

IC803 AZ1117
3

Vin

3.32

Vout

1.81

IC810 AZ1117
3

Vin

3.32

Vout

1.81

IC701 TPIC2050
3

P12V_3

12.2

A9P5V

9.51

P12V_1

12.2

P12V_2

12.2

P5V_2

5.104

2-119

2-120

PRINTED CIRCUIT BOARD DIAGRAMS

1. SMPS P. C. BOARD
(TOP VIEW)

(BOTTOM VIEW)

2-121

2-122

NOTE) Warning
Parts that are critical with respect to risk
of fire or electrical shock.

2. MAIN P. C. BOARD
(TOP VIEW)

2-123

2-124

MAIN P. C. BOARD
(BOTTOM VIEW)

2-125

2-126

3. AMP P. C. BOARD
(TOP VIEW)

(BOTTOM VIEW)

2-127

2-128

4. JACK P. C. BOARD (OPTIONAL PART)

4-1. USB & PTB & MIC P. C. BOARD
(TOP VIEW)

(BOTTOM VIEW)

4-2. USB & PTB P. C. BOARD

(TOP VIEW)

(BOTTOM VIEW)

2-129

2-130

5. FRONT P. C. BOARD
(TOP VIEW)

(BOTTOM VIEW)

2-131

2-132

SECTION 3
CABINET & MAIN CHASSIS
CONTENTS
EXPLODED VIEWS ......................................................................................................................................... 3-3
1. CABINET AND MAIN FRAME SECTION ................................................................................................. 3-3
2. DECK MECHANISM SECTION ................................................................................................................ 3-5
3. PACKING ACCESSORY SECTION ......................................................................................................... 3-7
4. SPEAKER SECTION ................................................................................................................................ 3-8
4-1. CENTER SPEAKER .......................................................................................................................... 3-8
4-2. FRONT / REAR SPEAKER ............................................................................................................... 3-9
4-3. PASSIVE SUBWOOFER ................................................................................................................. 3-10
5. WIRELESS RECEIVER SECTION ......................................................................................................... 3-11

3-1

MEMO

3-2

EXPLODED VIEWS

1. CABINET AND MAIN FRAME SECTION

462
OPTIONAL PART

462

250L

250
462

B
C
D

CABLE3

275
462
462

A43

CABLE2
A

A46
A50

A51

I
E

285

JACK
MAIN

A41

Wi-Fi
CABLE4

CABLE1
B
C

462

CN901
465
G

AMP

A45

265

260

SMPS

465

462

465
K

A47

462

320
250R

261
300
A44
261
262

261

MEMO

2. DECK MECHANISM SECTION

1436

1006
A002

1001

A003

A001
1005

1435
1003
1008

1004

1007
1013
1012
A004

1002

1014
1009

1020

1015
1011
A005

1016

1017

1030

1024

1437
1024

1031

1024

1437

1021
1049

1024
1437

1438

3. PACKING ACCESSORY SECTION

801

Owners manual

808 Batteries

825

FM antenna

832 CD title

900

805

Clear sheet

811

Video cable

826

Filter (Ferrite Core)

840

Wireless TX dongle

Remote control

804

Bag

803 Packing
803

802 Box, Master

Speaker cables
WIRE80
WIRE81
WIRE70
WIRE90
WIRE60
WIRE61

Front Left
Front Right
Center
Subwoofer
Rear Left
Rear Right

Packing

4. SPEAKER SECTION
4-1. CENTER SPEAKER

A700

4-2. FRONT / REAR SPEAKER

A800
A800T

850

A800M
A800B

850

4-3. PASSIVE SUBWOOFER

A900

5. WIRELESS RECEIVER SECTION

NOTES)
NOTES)
NOTES)
NOTES)

Warning
Parts that are shaded are critical
with respect to risk of fire or
electricial shock.

A330
390L

394
A81A

AMP
A
B

394
394
CN901
A

395

A81S

390R

392
A81M

SMPS

395

394
C

WIRELESS

394

391

393

MEMO

SECTION 4
MT8560 F/E LOADER PART
CONTENTS
ONE POINT REPAIR GUIDE ................................................................................................................... 4-2
1. ALL BD DISC READING ERROR .......................................................................................................... 4-2
2. ALL DVD DISC READING ERROR........................................................................................................ 4-3
3. ALL CD DISC READING ERROR .......................................................................................................... 4-4

HOW TO USE THE SA RESET FUNCTION ....................................................................................... 4-5

1. PURPOSE ................................................................................................................................................. 4-5
2. REQUIRED SA RESET. ........................................................................................................................... 4-5
3. SA RESET PROCEDURE ........................................................................................................................ 4-5

MAJOR IC INTERNAL BLOCK DIAGRAM AND PIN DESCRIPTION ...................................... 4-7

1. IC501 (MT8560) ........................................................................................................................................ 4-7
2. IC701 (TPIC2050): 9CH MOTOR DRIVE WITH 3 BEAM LASER DIODE DRIVER .............................. 4-10
3. PICK-UP CONNECTOR TERMINAL PIN ASSIGNMENTS .................................................................... 4-12

BLOCK DIAGRAM .................................................................................................................................... 4-13

4-1

ONE POINT REPAIR GUIDE

1. "ALL BD DISC" READING ERROR
- All BD disc did not recognized, but DVD and CD are recognized normally.
- If LD output currents level is abnormal, set can not recognize BD disc.
1-1. Component
1) MD (Traverse Assembly)
2) IC701 (TPIC2050), CN703

1-2. How to troubleshoot (Countermeasure)

1) Check MDs cables status. (Pick-up/ Sled-Spindle/ Tray Cable)
2) Check power source of IC701. (pin42 --> 12 V, pin24 --> 9.5 V, pin34 --> 5 V)
3) Check pin39 (MON_BD) of CN703 during BD single layer playback.
(pin39 = 180 mV)

1-3. Service hint (Any picture / Remark)

4-2

ONE POINT REPAIR GUIDE

2. "ALL DVD DISC" READING ERROR
- All DVD disc did not recognized, but BD and CD are recognized normally.
- If LD output currents level is abnormal, set can not recognize DVD disc.
2-1. Component
1) MD (Traverse Assembly)
2) IC701 (TPIC2050), CN703

2-2. How to troubleshoot (Countermeasure)

1) Check MDs cables status. (Pick-up/ Sled-Spindle/ Tray Cable)
2) Check power source of IC701. (pin42 --> 12 V, pin24 --> 9.5 V, pin34 --> 5 V)
3) Check pin40 (SEL_DVD) of CN703 during DVD playback.
(pin40 = 180 mV)

2-3. Service hint (Any picture / Remark)

4-3

ONE POINT REPAIR GUIDE

3. "ALL CD DISC" READING ERROR
- All CD disc did not recognized, but BD and DVD are recognized normally.
- If LD output currents level is abnormal, set can not recognize CD disc.
3-1. Component
1) MD (Traverse Assembly)
2) IC701 (TPIC2050), CN703

3-2. How to troubleshoot (Countermeasure)

1) Check MDs cables status. (Pick-up/ Sled-Spindle/ Tray Cable)
2) Check power source of IC701. (pin42 --> 12 V, pin24 --> 9.5 V, pin34 --> 5 V)
3) Check pin41 (SEL_CD) of CN703 during DVD playback.
(pin41 = 180 mV)

3-3. Service hint (Any picture / Remark)

4-4

HOW TO USE THE SA RESET FUNCTION

1. PURPOSE

In order to insert the new SA adjustment values, it need clearing SA initial values of the flash memory.

2. REQUIRED SA RESET

- After changing Traverse.

- After changing Main Board Assembly.
- After changing Main Board Flash IC.

3. SA RESET PROCEDURE
1) Power on the set (then, mode is in home menu).

2) Press Setup.

3) Under DISPLAY highlighted condition, press 5 ->

1 -> 7 -> 7 -> 7 -> 7 -> 7-> Enter on the remote
controller to display special mode. Move to the SA/IOP
Reset and click.

4-5

4) Insert BD-ROM SL Disc.

(Tray is opened automatically.)

5) If the disc is inserted, you will see Wait....

6) If SA Adjustment is finished, tray is opened automatically.

7) Press stop key twice to escape this special mode.

Reference:

4-6

MAJOR IC INTERNAL BLOCK DIAGRAM AND PIN DESCRIPTION

1. IC501 (MT8560)
1-1. Pin Function
PIN NO.

SYMBOL

TYPE

AGND33_1

Analog Ground

DESCRIPTION

AGND33_2

Analog Ground

AGND33_3

Analog Ground

AGND12_1

Analog Ground

AGND12_2

Analog Ground

AUX1

Analog I/O

AVDD12_1

Analog Power(1.2V)

Power Pin

Auxiliary Input. Alternateive Function : Signal Monitoring

AVDD12_2

Analog Power(1.2V)

Power Pin

AVDD33_1

Analog Power(3.3V)

Power Pin

AVDD33_3

Analog Power(3.3V)

Power Pin

FECFREQ

3.3V LVTTL I/O,

5V-tolerance,
Slow slew,
2, 4, 6, 8 mA PDR,
75K pull-up (3.3 V)

Frequency selection signal output, or LDD serial interface data

or 12C SDA.
The pin is spike-free at power-on stage.

FECMOD

3.3V LVTTL I/O,

5V-tolerance,
Slow slew,
2, 4, 6, 8 mA PDR,
75K pull-up (0 V)

High frequency modulation mode selection signal output,

or LDO serial interface command enable.
The pin is spike-free at power-on stage.

FEDMO

Analog Output

Disk motor control output. DAC output.

FEEJECT_

3.3V LVTTL I/O,

5V-tolerance,
6 mA driving,
75K pull-up (3.3 V)

Eject/stop key input, active low.

The pin is spike-free at power-on stage.
Alternate function : General IO.

FEFG

3.3V LVTTL I/O,

5V-tolerance,
6 mA PDR,
75K pull-up (3.3 V)

Motor Hall sensor input.

The pin is spike-free at power-on stage.

R1
N1

FEFMO

Analog Output

Feed motor 1 control. DAC output.

FEFMO2

Analog Output

Feed motor 2 control. DAC output.

FEFMO3

Analog I/O

Feed motor 3 control. DAC output.

Alternative Function : Auxiliary servo input.

FEFMO4

Analog I/O

Feed motor 4 control. DAC output.

Alternative Function : Auxiliary servo input.

FOO

Analog Output

FPDOCD

Analog Input

Laser Power Monitor Input for CD APC / Differential negative

input

FPDODVD

Analog Input

Laser Power Monitor Input for DVD APC / Differential positive

input

FEGAINSW1

Analog Output

Focus servo output.

PDM output of focus servo compensator.

Read gain switch 1.

FEGAINSW2

Analog Output

Read gain switch 2.

FEGAINSW3

Analog Output

Read gain switch 3.

FEGIO0

3.3V LVTTL I/O,

5V-tolerance,
2, 4, 6, 8mA PDR,
75K pull-down (0 V)

4-7

LDD serial interface data.

The pin is spike-free at power-on stage.
The pin is not allowed to pull-up in circuit layout.
Alternate function :
1. Internal monitored signal output
2. General IO

PIN NO.

SYMBOL

TYPE

DESCRIPTION
LDD serial interface CLK.
The pin is spike-free at power-on stage.
The pin is not allowed to pull-up in circuit layout.
Alternate function :
1. Internal monitored signal output
2. General IO

FEGIO1

3.3V LVTTL I/O,

5V-tolerance,
2, 4, 6, 8 mA PDR,
75K pull-down (0 V)

FEGIO10

3.3V LVTTL I/O,

5V-tolerance,
2, 4, 6, 8 mA PDR,
75K pull-down (3.3 V)

PC RS232 serial receive data.

The pin is spike-free at power-on stage.
Alternate function :
1. High speed serial output port. (CLOCK)
2. Internal monitored signal output
3. LED Control Output. Initial 0 Output
4. General IO

FEGIO11

3.3V LVTTL I/O,

5V-tolerance,
2, 4, 6, 8mA PDR,
75K pull-down (3.3 V)

PC RS232 serial transmit data.

The pin is spike-free at power-on stage.
Alternate function :
1. High speed serial output port. (Data)
2. Internal monitored signal output
3. General IO

FEGIO3

3.3V LVTTL I/O,

5V-tolerance,
2, 4, 6, 8mA PDR,
75K pull-down (0 V)

LED Control Output. Initial 0 Output.

The pin is spike-free at power-on stage.
Alternate function :
1. Internal monitored signal output
2. General IO

FEGIO4

FEGIO5

Analog Output

Read gain switch 4

Alternate function :
1. LCD serial interface command enable.
2. LCD_DRV: Sqare wave output for LCD control.
3. Internal monitored signal output
4. General IO.

Analog Output

Read gain switch 6

Alternate function :
1. SIDM
2. LCD serial interface command enable.
3. Internal monitored signal output
4. General IO.

FEGIO6

Analog Output

Read gain switch 6.

The pin is not allowed to pull-up in circuit layout
Alternate function :
1. SIDM
2. LCD serial interface command enable.
3. Internal monitored signal output
4. General IO.

FEGIO7

3.3V LVTTL I/O,

5V-tolerance,
2, 4, 6, 8 mA PDR,
75K pull-down (0 V)

General IO.
The pin is spike-free at power-on stage.
The pin is not allowed to pull-up in circuit layout.
General IO.
The pin is spike-free at power-on stage.
Alternate function :
1. Internal monitored signal output
2. Spoke input
3. Power on reset input, high active.
4. General IO.

FEGIO9

3.3V LVTTL I/O,

5V-tolerance,
2, 4, 6, 8 mA PDR,
75K pull-down (0 V)

HAVC

Analog Output

INA

Analog Input

Input of Main Beam Signal (A)

INB

Analog Input

Input of Main Beam Signal (B)

INC

Analog Input

Input of Main Beam Signal (C)

IND

Analog Input

Input of Main Beam Signal (D)

Decoupling Pin for Reference Voltage of Main and Sub Beams

4-8

PIN NO.

SYMBOL

TYPE

INE

Analog Input

DESCRIPTION
Input of Sub-Beam Signal (E)

INF

Analog Input

Input of Sub-Beam Signal (F)

ING

Analog Input

Input of Sub-Beam Signal (G)

INH

Analog Input

Input of Sub-Beam Signal (H)

MPXOUT1

Analog Output

Multiplexer Output 1 for Signal Monitoring.

The pin is not allowed to pull-up in circuit layout.
Alternate function : Internal monitored signal output / General
output.

MPXOUT2

Analog Output

Multiplexer Output 2 for Signal Monitoring. T

he pin is not allowed to pull-up in circuit layout.
Alternate function : Internal monitored signal output / General
output.

MPXOUT3

Analog Output

Multiplexer Output 3 for Signal Monitoring.

The pin is not allowed to pull-up in circuit layout.
Alternate function : Internal monitored signal output / General
output.

FEOSCEN

3.3V LVTTL I/O,

5V-tolerance,
Slow slew,
2, 4, 6, 8 mA PDR,
75K pull-up (3.3 V)

High frequency modulation enable signal output, or LDD serial

interface CLK or 12C SCL.
The pin is spike-free at power-on stage.

RFIN

Analog Input

Differential Input of AC Coupling RF SUM Signal (Negative)

RFIN2

Analog Input

RFIP

Analog Input

Differential Input of AC Coupling RF SUM Signal (Positive)

RFIP2

Analog Input

Differential Input of AC Coupling RF SUM Signal (Positive)

TLO

Analog Output

FETRAYIN_

3.3V LVTTL I/O,

5V-tolerance,
6 mA,
75K pull-up (3.3 V)

Tray_is_in Input. A Logical Low Indicates the Tray is IN. Feedback Flag is from Tray Connector.
The pin is spike-free at power-on stage.
Alternate function : General IO.

FETRAYOUT_

3.3V LVTTL I/O,

5V-tolerance,
6 mA,
75K pull-up (3.3 V)

Tray_is_out Input. A Logical Low Indicates the Tray is OUT.

Feedback Flag is from Tray Connector.
The pin is spike-free at power-on stage.
Alternate function : General IO.

FETRAYPWM

Analog Output

TRINA

Analog Input

Tilt servo output

Tray DAC / PWM control output. Controlled by microP

Input of Tracking Signal (A)

TRINB

Analog Input

Input of Tracking Signal (B)

TRINC

Analog Input

Input of Tracking Signal (C)

TRIND

Analog Input

Input of Tracking Signal (D)

TRO

Analog Output

Tracking servo output.

PDM output of tracking servo compensator.

V14

Analog Output

Output of voltage eference (1.4V)

VDAC0

Analog Output

Output of General DAC

FVREF

Analog Output

Output of Voltage Reference

VWDC2O

Analog Output

Output Voltage 2 of Laser Diode Control in APC

VWDC3O

Analog Output

Output Voltage 3 of Laser Diode Control in APC

4-9

2. IC701 (TPIC2050)
: 9ch motor drive with 3 beam laser diode driver
2-1. Block Diagram
P12V_2

P12V_1

P5V_2

P12V_3

0.1u
CP3

CP2

CP1

P12V

P5V
P5V_1

P12V
0.1u

ICOM1
ICOM2

Charge
pump

XSLEEP

19V

SIOV

SPM
Current limit

XFG

XSLEEP
On chip
thermometer

SIOV

SLED1+
DAC
PWM

SOMI_HIZ

prepower
driver FET
F/B

SLD_ENA
Digital core

SIOV

ENDDET

GPOUT

SLED1-

SLED2+

DAC
PWM

prepower
driver FET
F/B

DAC
PWM

prepower
driver FET
F/B

DAC
PWM

prepower
driver FET

FCS-

prepower
driver FET
F/B

TRK-

200k

XRSTIN

A5V
int 3.3V
Regulator

0.1u

TLT-

DIFF_TLT
FCS+

33k

SIOV
RDY

SLED2-

TLT+

TLT_ENA

CV3P3V

RDY

SLED END
detection

SLD_ENA

GPOUT_ENA
RESETIN

SIOV

3.3V

GPOUT

MCOM

SOMI

BEMF
detector

prepower
driver FET

SPI I/F

SIMO

200k

SCLK

SPM Logic
DAC PWM

TEMPMON_ENA

SSZ
SCLK
SIMO

SSZ

SPM_ENA

0.1
.
ISENSE

F/B

power
monitor

P12V
P5V
TRK+

P5V12L
TRK_ENA

DAC
PWM

P5V
LOAD+
prepower
driver FET
F/B

LOAD_ENA
P12V
int 10V
Regulator

C10V
0.1u

ENDDET

LOAD-

TRAY Lock
detection

P5V
STP1+
CA5V

Analog
5V

0.1u
VLDDIN

DAC
PWM

prepower
driver FET

DAC

200k

VLDDIN

STP_ENA

prepower
driver FET

V/I

ILDD_CD

V/I

ILDD_BD
V/I

9.5V

A9P5V

ENDDET

STEP END
detection

LD
select

LDD_MSEL

ENDDET_ENA
ENDDET_SEL[1:0]

ENDDET

10u
AGND/DGND

PGND_1-2

4-10

STP1STP2+

DAC
PWM

LDD_AMODE

ILDD_DVD

P12V

AGND

TPIC2050

STP2-

2-2. Pin Function

No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

Name
SLED1_P
SLED1_N
P12V_3
SLED2_P
SLED2_N
PGND_2
C10V
CP1
CP2
CP3
GPOUT
XFG
RDY
SSZ
SCLK
SIMO
SOMI
SI0V
XRSTIN
TEST1

I/O
OUT
OUT
PS
OUT
OUT
PS
MISC
MISC
MISC
MISC
OUT
OUT
OUT
IN
IN
IN
OUT
PS
IN
MISC

VLDDIN

22
23
24
25
26
27

CV3P3
AGND/DGND
A9P5V
ILDD_BD
ILDD_DVD
ILDD_CD

MISC
PS
PS
OUT
OUT
OUT

CP5V

MISC

29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56

LOAD_P
LOAD_N
P5V12L
TEST2
TEST3
P5V_1
TLT_N
TLT_P
TRK_P
TRK_N
FCS_P
FCS_N
PGND_1
P12V_1
U
ICOM1
V
P12V_2
W
ICOM2
MICOM
ISENCE
AGND
STIP1_P
STIP1_N
STP2_P
STP2_N
P5V_2

OUT
OUT
PS
MISC
MISC
PS
OUT
OUT
OUT
OUT
OUT
OUT
PS
PS
OUT
MISC
OUT
PS
OUT
MISC
IN
IN
PS
OUT
OUT
OUT
OUT
PS

Description
Sled1 positive output terminal
Sled1 negative output terminal
Power supply terminal for 12V drivers output
Sled2 positive output terminal
Sled2 negative output terminal
GND terminal for 12V drivers
The capacitance connection terminal for internal regulator
Capacitance connection for Charge Pump
Capacitance connection for Charge Pump
Capacitance connection for Charge Pump
General Purpose Output (Test monitor)
Motor speed signal output
Device ready signal Internally pulled up to SIOV
SIO Slave Select Low active input terminal
SIO Serial clock input terminal
SIO Slave Input Master Output terminal
SIO Slave Input Master Input terminal
Power supply terminal for Serial Port 3.3V typical
RESET input terminal to disable the driver IC
Test pin. Should be open
Laser diode control analog signal input 0 to 3V terminal Required to set
register when use VLDDIN input. Open in case of non use analog input.
Capacitance terminal for internal 3.3V core (typ 0.uF)
Ground terminal for digital and analog
Power supply terminal 9.5V Laser didoe for BD
Laser diode for BD output terminal
Laser diode for DVD output terminal
Laser diode for CD output terminal
The capacitance connection terminal for control system power supply 0.1uF
or lager decoupling capacitor should be connected
Load positive output terminal
Load negative output terminal
The power supply terminal (5V or 12V) for Load driver output stages.
Test pin. Should be open
Test pin. Should be connected to P5V
Power supply terminal for Tilt/Fcs/Trk drivers
Tilt negative output terminal
Tilt positive output terminal
Tracking positive output terminal
Tracking negative output terminal
Focus positive output terminal
Focus negative output terminal
GND terminal for Tilt/Fcs/Trk channel drivers
Power supply terminal for 12V driver output stage
U phase output terminal for spindle motor
Current sense resister terminal for spindle driver
V Phase output terminal for spindle motor
Power supply terminal for 12V driver output stage
W phase output terminal for spindle motor
Current sense resister terminal for spindle driver
Motor center tap connection
Current sense resister terminal for spindle driver
Ground terminal for internal analog
STP1 positive output terminal for collimator
STP1 negative output terminal for collimator
STP1 positive output terminal for collimator
STP1 negative output terminal for collimator
Power supply terminal for 5V driver output

4-11

3. PICK-UP CONNECTOR TERMINAL PIN ASSIGNMENTS

PIN NO.

PIN NAME

FUNCTION

F2+

Outer Focus (+)

F2-

Outer Focus (-)

T+

Tracking (+)

F1+

Inner Focus (+)

T-

Tracking (-)

F1-

Inner Focus (-)

MOTOR_A-

Step Motor A-

MOTOR_B-

Step Motor B-

MOTOR_A+

Step Motor A+

MOTOR_B+

Step Motor B+

GND

BLOCK

Actuator

MOTOR

Servo Signal Part

SW3

BD PD Sleep Selection

RF+

BD/DVD/CD RF+

RF-

BD/DVD/CD RF-

SW2

BD PD Gain2

SW1

BD PD Gain1

VREF_2.1V

PDIC Reference 2.1V

VCC_PD(5V)

PDIC Power 5V

GND_PD

PDIC GND

DVD/CD Sleep Selection

GND

LD HFM GND

BD_LD

LD Control BD

CD_LD

LD Control CD

DVD_LD

LD Control DVD

GND

LD HFM GND

TEMP

Thermistor

HFM_VCC(5V)

HFM VCC

CD/DVD_MPD

Monitor output DVD/CD

BD_MPD

Monitor output BD

DVD_VR

DVD Level adjust

CD_VR

CD Level adjust

5V_OUT

PD Vcc Output

GND

LD HFM GND

BD_VR

BD Level adjust

4-12

PDIC PART (BD/DVD_CD)

LD HFM IC Monitor

BLOCK DIAGRAM

NAND
1GB

DDR3
256/ 384 MB

7.1 CH

OPU

2 CH

MT8560

Audio
DAC

S/PDIF

Motor
Driver

Ethernet

HD+SD Decode
810 MHz ARM11
400 MHz Audio DSP x 3
HDMI 1.4
Ethernet

HDMI
Component
CVBS

DVO
USB

4-13

Monitor

MEMO

4-14

SECTION 5
WIRELESS RECEIVER PART
CONTENTS

FIRMWARE UPDATE FOR WIRELESS DEVICE ......................................................................................... 5-2

ONE POINT REPAIR GUIDE .......................................................................................................................... 5-3
ELECTRICAL TROUBLESHOOTING GUIDE ............................................................................................... 5-5
WAVEFORMS................................................................................................................................................... 5-6
WIRING DIAGRAM .......................................................................................................................................... 5-7
BLOCK DIAGRAM ........................................................................................................................................... 5-9
CIRCUIT DIAGRAMS .................................................................................................................................... 5-11
1. SMPS CIRCUIT DIAGRAM..................................................................................................................... 5-11
2. AMP CIRCUIT DIAGRAM ....................................................................................................................... 5-13
PRINTED CIRCUIT BOARD DIAGRAMS .................................................................................................... 5-15
1. SMPS P. C. BOARD ............................................................................................................................... 5-15
2. AMP P. C. BOARD ................................................................................................................................. 5-17

5-1

FIRMWARE UPDATE FOR WIRELESS DEVICE

1. WIRELESS RX UPDATE METHOD
Update must be performed without interference.
1) Select 1 on test band.
- You must select a band without interference.
2) USB update
- During the software update procedure, do not turn off the unit.
2-1) Copy the update file to the USB device after rename as WIRELESS_RX_BH9520.BIN.
2-2) Insert a USB device and perform the update.
- It is indicated SEND xx during transmission (xx is progress rate %.).
- FINALIZE indication is blinked to FLD of main set during RX MICOM writing.
* In case of connection is unstable; In case of update is no response more than 20 seconds; Update fail.
* At this time, turn off RX/TX then Wireless update will fail and the previous version of program will work.
2-3) If the update is finished, RX LED is turned off and on. Main set is power off automatically.
3) Remove the power cord. After 5 seconds, reconnect the cord and turn on TX.
4) Factory
4-1) Press PAIRING button on RX for 5 seconds.
- LED blinks green and red alternately to 0.5 second intervals.

Condition:
1) Wireless module update must be performed without interference.
2) You must update after switching TEST BAND.
3) After wireless module update, you must perform RX FACTORY.

2. WIRELESS TX MODULE UPDATE METHOD

Update must be performed after turning off RX.
1) Insert TX module to slot.
- You must turn the power on with the TX module in the slot.
2) USB update
- During the software update procedure, do not turn off the unit.
2-1) Copy the update file to the USB device after rename as WIRELESS_TX_BH9520.BIN.
2-2) Insert a USB device and perform the update.
- It is indicated WRITE xx during transmission (xx is progress rate %.).
2-3) If the update is finished, TX shall be powered off automatically.
3) Remove the power cord. After 5 seconds, reconnect the cord and turn on TX.
4) Factory
4-1) Press set STOP + remote control 6 during 3 seconds to perform TX FACTORY.
- WL RESET appears on FLD.
4-2) Press PAIRING button on RX during 5 seconds.
- LED blinks green and red alternately to 0.5 second intervals.
Condition:
1) After wireless module update, you must perform TX FACTORY.

5-2

ONE POINT REPAIR GUIDE

1. How to Duplicate Problem
Wireless rear speaker doesnt output a sound.

1-1. Solution
Check SMPS board (No PVDD).

1-2. How to troubleshoot (Countermeasure)

Check LED color of RX BOX.

YES

Color is green?

Check SMPS board.

Try to remate or reset.

1-3. Service hint (Any picture / Remark)

2. How to Duplicate Problem

Wireless rear speaker doesnt output a sound.

2-1. Solution
Replace RIC308 (No 12 V).

2-2. How to troubleshoot (Countermeasure)

AMP 12 V (RIC308 pin4)
no output.

YES

14 VA (RIC308 pin2) no input.

Check 3.3 V.

Replace RIC308.

2-3. Service hint (Any picture / Remark)

RIC308

RIC307

< AMP board top view >

5-3

YES

Check SMPS board.

ONE POINT REPAIR GUIDE

3. How to Duplicate Problem
Wireless rear speaker doesnt output a sound.

3-1. Solution
Replace RIC307 (No 3.3 V)

3-2. How to troubleshoot (Countermeasure)

PWM 3.3 V (RIC307 pin3) no YES
output.

5 VA (RIC307 pin2) no input.

Check Module or connection.

Replace RIC307.

3-3. Service hint (Any picture / Remark)

RIC308

RIC307

< AMP board top view >

5-4

YES

Check SMPS board.

ELECTRICAL TROUBLESHOOTING GUIDE

No Pairing

Check LED status.

Green LED blinks irregularly.

YES

interference.

YES

Remate.

YES

interference.

YES

Remate.

Turn off the equipment that

gives interference.

Red LED is turned on.

Check SMPS board or

Module connection.

No Sound

Check sound status.

Sound cut off irregularly.

Check LED status.

LED is Red.
NO

YES
AMP PVDD
(RCN301 pin9, 10) no output.

Check SMPS board.

AMP 12 V (RIC308 pin4)

no output.

YES

Check RIC308.

YES

Check RIC307.

3.3 V (RIC307 pin3)

no output.

Check Module or Connection.

5-5

Turn off the equipment that

gives interference.

WAVEFORMS
1. AUDIO PART (I2S)

1
2

RCN303 pin1 : I2S LRCK

RCN303 pin3 : I2S BCK

RCN303 pin20 : I2S Audio Data

5-6

WIRING DIAGRAM

WIRELESS
MODULE

26P FFC
CABLE

RCN303

WIRELESS AMP

5-7

10P HARNESS
CABLE

RCN301

CN901

SMPS

5-8

BLOCK DIAGRAM
1. BLOCK DIAGRAM

Main Set

Micom

Rx Box

5VA

LDO

S7127F

KIA7042

Reset

3.3VA

3.3V

SDIO_W,X,Y
MSG_RDY, Mute, Reset, I2C
Detect
MCLK (For Uplink), I2S_AUDIO

DWAM83
CU

PS9854

P_SENSE

I2C, PWM_RST, I2S_AUDIO

DWAM83

(Front, Rear, C/W)

SDIO_Z

AMP_PDN
AMP_SD

(Up_Stream)

SPI

ST-BY
5-9

WL_Ready

DSP

PARING STATUS

RED/BLUE_LED

P_CTRL

PWM

Serial
Flash

TAS5624

SMPS (PVDD)
Paring S/W

Buffer

LDO (3.3V_PWM)
LDO (12V_GVDD)

5-10

CIRCUIT DIAGRAMS

IMPORTANT SAFETY NOTICE

WHEN SERVICING THIS CHASSIS, UNDER NO
CIRCUMSTANCES SHOULD THE ORIGINAL DESIGN BE
MODIFIED OR ALTERED WITH OUT PERMISSION FROM
THE LG CORPORATION. ALL COMPONENTS SHOULD BE
REPLACED ONLY WITH TYPES IDENTICAL TO THOSE

1. SMPS CIRCUIT DIAGRAM

IN THE ORIGINAL CIRCUIT. SPECIAL COMPONENTS ARE NOTE :

SHADED ON THE SCHEMATIC FOR EASY IDENTIFICATION.
1. Shaded(
) parts are critical for safety. Replace only with
THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIFFER FROM
specified part number.
THE ACTUAL CIRCUIT USED. THIS WAY, IMPLEMENTATION
2. Voltages are DC-measured with a digital voltmeter during Play
OF THE LATEST SAFETY AND PERFORMANCE
mode.
IMPROVEMENT CHANGES INTO THE SET IS NOT DELAYED
UNTIL THE NEW SERVICE LITERATURE IS PRINTED.

Warning
Parts that are shaded are critical with
respect to risk of fire or electrical shock.

W2-SMPS
EAX62564712, REV1.1
2011. 12. 27

5-11

5-12

2. AMP CIRCUIT DIAGRAM

W2-AMP
EAX64464402, Rev1.0(0)
2011. 12. 27

5-13

5-14

PRINTED CIRCUIT BOARD DIAGRAMS

1. SMPS P. C. BOARD
(TOP VIEW)

(BOTTOM VIEW)

NOTES)
NOTES)
NOTES)
NOTES)

Warning
Parts that are shaded are critical
with respect to risk of fire or
electricial shock.

5-15

5-16

Warning
Parts that are shaded are critical
with respect to risk of fire or
electricial shock.

2. AMP P. C. BOARD
(TOP VIEW)

(BOTTOM VIEW)

5-17

5-18

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