Internal Use Only

Website http://biz.lgservice.com

SERVICE MANUAL
CAR CD/MP3/WMA
RECEIVER
SERVICE MANUAL

MODEL: LCS110AR
MODEL: LCS110AR
CAUTION
BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS”
IN THIS MANUAL.

P/NO : AFN75512864 OCTOBER, 2011

 CONTENTS
SECTION 1 SUMMARY
SERVICING PRECAUTIONS .............................................................................................................................1-2
ESD PRECAUTIONS ..........................................................................................................................................1-3
SPECIFICATIONS ..............................................................................................................................................1-4
LOCATION OF USERS CONTROLS .................................................................................................................1-5
HOW TO SETTING THE OPTION CODE ..........................................................................................................1-6
FIRMWARE UPGRADE METHOD .....................................................................................................................1-7
HOW TO CONNECT AUDIO SET TO POWER SUPPLY ..................................................................................1-8

SECTION 2 ELECTRICAL
ELECTRICAL TROUBLESHOOTING GUIDE....................................................................................................2-1
1. SYSTEM CONTROL ERROR CORRECTION FLOW CHART .................................................................2-1
2. SOUND ERROR CORRECTION FLOW CHART ......................................................................................2-4
3. DISPLAY ERROR CORRECTION FLOW CHART ....................................................................................2-7
4. TUNER ERROR CORRECTION FLOW CHART.......................................................................................2-9
5. CDP ERROR CORRECTION FLOW CHART .........................................................................................2-10
6. USB ERROR CORRECTION FLOW CHART (OPTIONAL) ....................................................................2-13
7. AUX ERROR CORRECTION FLOW CHART..........................................................................................2-15
WAVEFORMS ...................................................................................................................................................2-16
CIRCUIT VOLTAGE CHART ............................................................................................................................2-18
INTERNAL BLOCK DIAGRAM OF ICs ...........................................................................................................2-20
1. IC301 (HA13173AH) ................................................................................................................................2-20
2. IC801 (TB2946HQ) ..................................................................................................................................2-22
3. IC802 (BD3702FV)...................................................................................................................................2-23
4. IC901 (MC5502).......................................................................................................................................2-24
WIRING DIAGRAM ...........................................................................................................................................2-27
BLOCK DIAGRAM ...........................................................................................................................................2-29
CIRCUIT DIAGRAMS .......................................................................................................................................2-31
1. MAIN CIRCUIT DIAGRAM .......................................................................................................................2-31
2. FRONT CIRCUIT DIAGRAM ...................................................................................................................2-33
3. CDP CIRCUIT DIAGRAM ........................................................................................................................2-35
PRINTED CIRCUIT BOARD DIAGRAMS ........................................................................................................2-37
1. MAIN P.C.BOARD ...................................................................................................................................2-37
2. FRONT P.C.BOARD ................................................................................................................................2-39
3. CDP P.C.BOARD .....................................................................................................................................2-41

SECTION 3 EXPLODED VIEWS

1. CABINET AND MAIN FRAME SECTION ..................................................................................................3-1
2. MECHANISM(PICK-UP) SECTION ...........................................................................................................3-3

SECTION 4 REPLACEMENT PARTS LIST

1-1
 SECTION 1 SUMMARY
SERVICING PRECAUTIONS
1. Always disconnect the power source before:

1) Removing or reinstalling any component, circuit board, module or any other instrument assembly.
2) Disconnecting or reconnecting any instrument electrical plug or other electrical connection.
3) Connecting a test substitute in parallel with an electrolytic capacitor in the instrument.
CAUTION: A wrong part substitution or incorrect polarity installation of electrolytic capacitors may result in an
explosion hazard.

2. Do not defeat any plug/socket B+ voltage interlocks with which instruments covered by this service
manual might be equipped.

3. Do not apply power to this instrument and or any of its electrical assemblies unless all solid-state de-
vice heat sinks are correctly installed.

4. Always connect a test instrument’s ground lead to the instrument chassis ground before connecting
the test instrument positive lead. Always remove the test instrument ground lead last.

1) The service precautions are indicated or printed on the cabinet, chassis or components. When servicing,
follow the printed or indicated service precautions and service materials.
2) The Components used in the unit have a specified conflammability and dielectric strength. When replacing
any components, use components which have the same ratings. Components marked in the circuit diagram
are important for safety or for the characteristics of the unit. Always replace with the exact components.
3) An insulation tube or tape is sometimes used and some components are raised above the printed writing
board for safety. The internal wiring is sometimes clamped to prevent contact with heating components.
Install them as they were.
4) After servicing always check that the removed screws, components and wiring have been installed correctly
and that the portion around the service part has not been damaged. Further check the insulation between
the blades of attachment plug and accessible conductive parts.

1-2
 ESD PRECAUTIONS
Electrostatically Sensitive Devices (ESD)
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components com-
monly are called electrostatically sensitive devices (ESD). Examples of typical ESD 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.

1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off
any electrostatic charge on your body by touching a know earth ground. Alternatively, obtain and wear a com-
mercially available discharging wrist strap device, which should be removed for potential shock reasons prior
to applying power to the unit under test.
2. After removing an electrical assembly equipped with ESD devices, place the assembly on a conductive surface
such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ESD devices.
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 ESD devices.
5. Do not use freon-propelled chemicals These can generate electrical charges sufficient to damage ESD de-
vices.
6. Do not remove a replacement ESD device from its protective package until immediately before you are ready to
install it. (Most replacement ESD devices are packaged with leads electrically shorted together by conductive
foam, aluminum foil or comparable conductive materials).
7. Immediately before removing the protective material from the leads of a replacement ESD device, touch the
protective material to the chassis or circuit assembly into which the device will by installed.
CAUTION : BE SURE NO POWER IS APPLIED TO THE CHASSIS OR CIRCUIT, AND OBSERVE ALL
OTHER SAFETY PRECAUTIONS.
8. Minimize bodily motions when handing unpackaged replacement ESD devices. (Otherwise 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 ESD device).

CAUTION. GRAPHIC SYMBOLS

THE LIGHTNING FLASH WITH ARROWHEAD SYMBOL. WITHIN AN EQUILATERAL TRIANGLE,

IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF UNINSULATED
“DANGEROUS VOLTAGE” THAT MAY BE OF SUFFICIENT MAGNITUDE TO CONSTITUTE A
RISK OF ELECTRIC SHOCK.

THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENED TO ALERT

THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN
SERVICE LITERATURE.

1-3
 SPECIFICATIONS
• GENERAL
Output Power 53 W x 4 CH (Max.)
Power Source DC 12 V
Speaker impedance 4Ω
Ground System Negative
Dimensions (W x H x D) 178 x 50 x 169 mm (Without Control Panel)
Net Weight 1.37 kg

• TUNER
FM Tunning Range 87.5 to 108 MHz
S/N Ratio 55 dB
Distortion 0.7 %
Usable Sensitivity 12 dBµV
AM Tunning Range: 520 to 1720 kHz or 522 to 1620 kHz
S/N Ratio 50 dB
Distortion 1.0 %
Usable Sensitivity 28 dBµV

• CD
Frequency Response 20 Hz to 20 kHz
S/N Ratio 80 dB
Distortion 0.12 %
Channel Separation (1 kHz) 55 dB

• AUX
Frequency Response 20 Hz to 20 kHz
S/N Ratio 80 dB
Distortion 0.1 %
Channel Separation (1 kHz) 45 dB
Max Input Level (1 kHz) 1.1 V

Designs and specifications are subject to change without notice.

1-4
 LOCATION OF USERS CONTROLS
FRONT PANEL

A B C D E F G HI

JK L M N O P Q R S T

A SRC/ • OFF K MUTE

• When pressed, selects function sources. Temporarily stops the sound.
• When pressed and held, powers unit on or off. L
B Activates setting menu.
Returns to the previous step. M /
C Volume knob Skip/ Search/ Seek/ Tune
• Adjusts volume level. N FUNC
• Confirms the settings. In each mode, sets playback items.
• Checks tracks, files or preset stations.
O X❙❙
D BAND Plays and pauses playback.
Selects a band in Tuner mode.
P INT
• TA (OPTIONAL)
Intro scan
Searches stations that have TA/ TP information,
when it is pressed and held. Q RPT
Repeats playback
E Remote Sensor (OPTIONAL)
R SHF
F Display window
Randoms playback
G EQ/• XDSS+
S Numeric buttons (1 - 6)
Improves sound quality.
Selects a numbered preset station in TUNER.
• When pressed, selects the EQ function.
• When pressed and held, selects the XDSS+ T AUX
function. If connected to other portable player, you can
enjoy musics from it on the unit.
HS
Ejects a disc.
I
Opens the front panel.
J DISP
• Press it, you can check the clock time.
• Press and hold it, you can turn on/off the
display window and the light of LED buttons.

1-5
 HOW TO SETTING THE OPTION CODE
1. Option Table
Option Codes for Car CD products of 2011 will be defined as below

* OPTION TABLE
INDEX AREA RDS OPTION CODE SUFFIX
EDEULL*
EDZALL*
EESPLL*
EHUNLL*
1 EU SUPPORT 111
EMARLL*
ESWELL*
ETUREL*
EZAFLL*
2 EU SUPPORT 112 ERUSLL*
EIRNJL*
EISRRL*
3 EU PS_RT_ONLY 121 ENGALL*
ESAUBL*
YEGYIL*
ECHLLL*
ECOLLL*
4 S.America PS_RT_ONLY 221 EPANLL*
PBRALL*
YMEXCL*

The option code is comprised of 3 digits and each digit has a range 1~6.
In the 2011, Car CD Product has totally four option codes from entire suffixes.

2. Operation
1. Entering Option Setting Function
1) Power off on the radio source.
2) Push and hold the SRC(PWR) Key for 5 seconds, then It goes to the version display mode.
3) Push BAND Key until the LCD displays “OPTION(OPTN) XYZ”.
(The XYZ means the Option Code)

2. How to change the option code

1) The Input mode can be set by press the volume knob, the first digit will be blinking until the
new code is set.
2) The number what you want to input could be selected by spinning the volume knob clockwise or
counterclockwise.
And then, if you push the volume knob, the selected number will be changed and the focus is moving
to the next.
You can also input the new option code of 1~6 by using preset keys if they are on the front panel.
3) If the new option code is acceptable, “SUCCESS XYZ” will be displayed on the LCD, and then it’ll reset
soon automatically.
4) If the new option code is not acceptable, “CODE ERR” will be displayed on the LCD.
To retry to change the option code, push the volume knob again.

1-6
 FIRMWARE UPGRADE METHOD

[ MAIN AND CD/USB FIRMWARE UPGRADE ]

1. Confirmation of version information

• Change the Source of audio set to tuner. (Default: tuner)

• Turn power off using power key.
• Press power key for 5 s. (After power on, continue pressing)
• After 5 s, beep sound rings two times.
Then version information would show up at display.
• In order to check version of MAIN and CD/USB system, Press band key.

2. Upgrade Program reading

• Insert update CD or USB in ACC on state and then is displayed in order.

CD : [Reading → File Check → Download?]
USB : [USB Check → Download?]

3. Upgrade start

• In order to start upgrade, Press Preset 1 Key until “CHECK CD” Display on the LCD.

4. Upgrade progress display

• Upgrade is in progress now.

[ CHECK CD → ERASE → WRITE → I-VRF → D-VRF ]

5. Upgrade Completion

• When Upgrade finished, the display shows up “DOWN OK”. After a while, the audio set is
reset automatically.

• Caution!
If power is off on the way of upgrading firmware, the set can’t be recovered.
Therefore pay lots of attention for power not to be off.

1-7
 HOW TO CONNECT AUDIO SET TO POWER SUPPLY
• It is sufficient only to supply power for upgrade.

• Shown from the right figure, connect yellow line (Battery) and red line (Ignition) to plus and minus terminal
respectively.

• Jack is connected to the audio set via its shapes matched each other.

• We need power supply for operation of audio set (Voltage : 12~15 V Current : Over 2 A)
Before connection between set and power supply, adjust voltage level to 15 V typically (It is okay up to 12 V.)
Power Supply has a variety of shapes and capacity of voltage and current.
At first check these things.

1-8
 SECTION 2 ELECTRICAL
ELECTRICAL TROUBLESHOOTING GUIDE
1. SYSTEM CONTROL ERROR CORRECTION FLOW CHART

Something wrong with the System control?

1A 1B 1C 1D 1E 1F

No power?

YES
NO
Checked the Fuse? F301 Inside of CN302

YES

Checked the Back up

NO
CN302(1, 2, 3)
VDD and GND?
YES
NO
Checked the Regulator IC301(15, 14)
Back up VDD?
YES
NO
Checked the Main Micom IC402(56)
B+ Detect?
YES
NO
Checked the Main IC402(30, 47, 50, 99, 100)
Micom VDD?
YES
NO
Checked the Main IC402(20, 51, 97, 98)
Micom GND?
YES

Checked the Main NO

Micom reset? IC401, IC402(90)

YES
NO
Checked the Main X401, X402
Micom X-tal?
YES
NO
Checked the ACC in? Q301, R408, IC402(38)

YES

Checked the Front NO

Panel Key input? IC402(53, 54), PN901(16, 17)

YES

OK

2-1
 1A [OPTIONAL]

Not available to Remocon?

YES
NO
Checked the RC902, R961
Remocon Sense VDD?
YES

Checked the
NO
Remocon Sense line? R962, IC402(81), PN901(1)

YES

OK

1B

Not available to Volume control?

YES
NO
Checked the EV901, IC402(82, 83), PN901(6, 7)
Encoder volume?
YES
NO
Checked the IC402(9, 10), IC802(25, 26)
Volume IC control?
YES

OK

1C

Not available to Key control?

YES
NO
Checked the SW901~SW917
Tact switch?
YES

Checked the
NO
IC402(53, 54), PN901(16, 17)
Key line?
YES

OK

2-2
 1D [OPTIONAL]

Not available to Telephone Mute?

YES

NO
Checked the ZD499, Q312, Q326, IC402(34)
Tel Mute input?

YES

NO
Checked the IC402(14, 15), IC802(15)
Mute control?

YES

OK

1E

Not available to ANT(Motor Type) control?

YES

NO
Checked the D430, IC301(12, 13), IC402(33)
ANT control?

YES

OK

1F [OPTIONAL]

Not available to Remote(Power AMP) control?

YES

NO
Checked the CN302(8), Q320, Q319, IC402(36)
Remote control?

YES

OK

2-3
2. SOUND ERROR CORRECTION FLOW CHART

Something wrong with the Sound?

2A 2B 2C

No sounds of All Functions?

YES
NO
Checked the IC802(24)
E-VR VDD?
YES

Checked the
NO
IC802(27)
E-VR GND?
YES

NO
Checked the IC802(25, 26), IC402(9, 10)
E-VR control?
YES

NO
Checked the E-VR IC802(15), IC402(15)
Mute control?
YES
NO IC802(1, 2, 3, 4, 5, 6, 7, 9,
Checked the E-VR
Signal in/out? 18, 19, 20, 21, 22, 23)
YES

Checked the
NO
IC801(23)
Power IC VDD?
YES

NO
Checked the IC801(1, 2, 8, 13, 18, 24)
Power IC GND?
YES

Checked the
NO
IC801(4, 22), IC402(22, 32)
Power IC control?
YES
NO IC801(3, 5, 7, 9, 11, 12, 14,
Checked the Power
IC Signal in/out? 15, 17, 19, 21, 23)
YES

Checked the NO
Main connector? CN302(11, 12, 13, 14, 15, 16, 17, 18)

YES

OK

2-4
 2A

Hearing the Pop Noise?

YES

NO IC402(14, 15, 32), IC802(15),

Checked the
Mute contorl? IC801(22), Q603, Q604, Q605, Q606, Q608

YES

OK

2B [OPTIONAL]

No Sound External AMP?

YES

NO
Checked the IC802(18, 19, 20, 21, 22, 23)
Line Out signal?

YES

NO
Checked the Line Out Q603, Q604, Q605, Q606, Q608, IC402(15)
AMP Mute control?

YES

NO
Checked the Line Out JK601
AMP signal in/out?

YES

OK

2C

No output Beep sound?

YES

NO
Checked the IC402(80), IC802(14)
Beep control?

YES

OK

2-5
■ CAUTION - Tip for repair

Before exchange power amp IC(TB2946) for no audio problem, you have to check
below list.

1. Check VCC (pin 20, 6) & GND

C5

C3
1 20 6

2. Check input pin 11, 12, 14, 15 TAB VCC1 VCC2

OUT1 (+)
9

3. Check Standby, pin 4 C1

11
IN1
PW-GND1 8 RL
: Follow the below list. OUT1 ( - )
7

4. Check Mute function, pin 22 OUT2 (+)

5
: Follow the below list. 12
IN2
C1 PW-GND2 2 RL

OUT2 ( - )
Stand-by Power Sound Voltage 3

ON OFF OFF 0 to 1.5 C6

16 AC-GND

OFF ON ON 3.5 to 6 V OUT3 (+)

17
IN3
15 PW-GND3 18 RL
C1
5. Check Ripple pin 10. OUT3 ( - )
: Normally it is high (about 10 V)
19

OUT4 (+)
21
Mute Sound Voltage IN4
14 PW-GND4 24 RL
C1
ON OFF 0 to 1.5 OUT4 ( - )
23

OFF ON 3.5 to 6 V PRE-GND

13
OFF-SET
RIP STBY DET MUTE
5V

6. Re-soldering all the pin of IC. 10 4 25 22

PLAY

: Prevent crack of solder line. R1

MUTE
C2

C4
: PRE-GND

* Keep changed IC, We request that you send it to HQ. : PW-GND

Picture 1) Power IC desc.

2-6
3. DISPLAY ERROR CORRECTION FLOW CHART

Something wrong with the Display?

3A 3B

No Display or Some Display is broken?

YES

NO
Checked the LCD IC901(56)
Driver VDD?

YES

NO
Checked the LCD IC901(60)
Driver GND?

YES

NO
Checked the LCD IC901(57), IC402(79)
Driver reset?

YES

NO
Checked the LCD IC901(61)
Driver OSC?

YES

NO IC402(44, 46, 74, 79), PN901(2, 8, 18, 19),

Checked the LCD
Driver data interface? IC901(57, 62, 63, 64)

YES

NO
Checked the LCD to IC901(1~55), LCD, Check the short
LCD Driver line?

YES

OK

2-7
 3A

Not available to illumination with button?

YES

NO
Checked the Dimmer CN302(7), IC301(9)
control input?

YES

NO
Checked the IC301(4), Q303, IC402(61)
Red LED VDD?

YES

NO
Checked the LD923~LD928, LD931~LD940, LD944, LD945
Red LED?

YES

OK

3B

Not available to LCD Lighting control?

YES

NO
Checked the Dimmer CN302(7), IC301(9)
control input?

YES

NO
Checked the IC301(4), Q302, IC402(49)
White LED VDD?

YES

NO
Checked the LD991, LD992
White LED?

YES

OK

2-8
4. TUNER ERROR CORRECTION FLOW CHART

Something wrong with the Tuner system?

Not available to Tuner?

YES

NO
Checked the IC101(6, 22)
Tuner VDD?

YES

NO
Checked the Tuner IC301(10, 11), IC402(40), D417
VDD control?

YES

NO
Checked the IC101(5, 10, 17, 23)
Tuner GND?

YES

NO
Checked the E-VR IC802(15), IC402(15)
Mute control?

YES

NO
Checked the IC101(18, 19), IC402(3, 4)
I2C data?

YES

Checked the
NO
IC101(8, 9)
Audio signal?

YES

OK

2-9
5. CDP ERROR CORRECTION FLOW CHART

Something wrong with the CD Player?

5A 5B 5C

No Loading?

YES

NO
Checked the CD VDD? CN520(14, 12)

YES

NO IC501(4, 5, 7, 9, 12, 44, 49, 51, 74, 77, 81,

Checked the CD
DSP GND? 102, 104, 116, 117)

YES

NO
Checked the Motor IC502(7, 8, 20)
DRV VDD?

YES

NO
Checked the CD CN520(19)
DSP reset?

YES

NO
Checked the CD X502(4.2336 MHz)
DSP X-tal?

YES

NO
Checked the Disc in CN506(2)
load switch? Fig 1, 2

YES

NO
Checked the Loading CN520(21, 23)
Motor control? Fig 3, 4

YES

NO
Checked the 12/8 cm CN506(1)
Sense switch? Fig 1, 2

YES

OK

2-10
 5A

No Reading & "FILE CHECK" Display?

YES

Checked the
NO
Limit switch? CN506(8)
Fig 1, 2

YES

NO
Checked the Motor IC502(21)
DRV Mute control?

YES

NO
Checked the Motor CN520(21, 23)
Loading control? Fig 3, 4

YES

Checked the CD NO
DSP control? CN520(1, 3, 4, 5)

YES

NO
Checked the IC501(111), IC502(15, 16)
Focus control?

YES

NO
Checked the RF IC501(82)
signal out check?

YES

Checked the Spindle

NO
IC501(107), IC502(11, 12)
motor control?

YES

Checked the
NO
IC503(109), IC502(13, 14)
SLED control?

YES

Checked the
NO
IC501(113), IC502(17, 18)
Tracking control?

YES

OK

2-11
 5B

CD no sound?

YES

NO
Checked the IC501(46, 47)
DSP signal out?

YES

OK

5C

No ejected the CD?

YES

NO
Checked the IC402(54)
Eject key?

YES

NO
Checked the Loading CN520(21, 23)
Motor control? Fig 3, 4
YES

OK

2-12
6. USB ERROR CORRECTION FLOW CHART (OPTIONAL)

Something wrong with the USB?

6A 6B

Only "NO USB" or "USB CHECK" Display?

YES

NO
Checked the USB VDD? IC303

YES

NO IC501(4, 5, 7, 9, 12, 44, 49, 51, 74, 77, 81,

Checked the USB
interface IC GND? 102, 104, 116, 117)

YES

NO
Checked the USB CN520(19)
interface IC reset?

YES

NO
Checked the USB X502
interface IC X-tal?

YES

NO
Checked the IC501(52, 53)
D+/D- Port?

YES

NO
Checked the USB IC501(52, 53)
indication Port?

YES

OK

2-13
 6A

"FILE CHECK" Display?

YES

NO IC501(4, 5, 7, 9, 12, 44, 49, 51, 74, 77, 81,

Checked the CD
DSP GND? 102, 104, 116, 117)

YES

NO
Checked the USB CN520(19)
interface IC reset?

YES

NO
Checked the X502
DSP X-tal?

YES

NO
Checked the CN520(1, 3, 4, 5)
DSP control?

YES

OK

6B

USB no sound?

YES

NO
Checked the CD IC501(52, 53)
DSP signal out?

YES

OK

2-14
7. AUX ERROR CORRECTION FLOW CHART

Something wrong with the AUX?

AUX no sound?

YES

NO JK903, IC802(7, 9), CN971(20, 21, 22),

Checked the AUX
Signal input? PN901(3, 4, 5)

YES

NO
Checked the
E-VR & Power AMP? See the Sound Error correction Process.

YES

OK

2-15
 WAVEFORMS
1. MAIN PART
1) MICOM(IC402) ↔ DISPLAY(PN901)
IC402:[PIN46]
IC402:[PIN44]
IC402:[PIN74]
IC402:[PIN79]

2) MICOM(IC402) ↔ TUNER IC(IC101)

IC402:[PIN4]
IC402:[PIN3]

3) MICOM(IC402) ↔ VOLUME IC(IC802)

IC402:[PIN9]
IC402:[PIN10]

2-16
2. CDP PART
Fig.1) SWITCHING CONDITION FOR LOADING Fig.2) SWITCHING CONDITION FOR UNLOADING

CN506:[PIN2] CN506:[PIN2]
CN506:[PIN1] CN506:[PIN1]
CN506:[PIN8] CN506:[PIN8]
LOADING S/W LOADING S/W
CN506:[PIN11] CN506:[PIN11]

12/8 S/W 12/8 S/W

LIMIT S/W LIMIT S/W

CHUCKING S/W CHUCKING S/W

Fig.3) MOTOR CONTROL SIGNAL FOR LOADING Fig.4) MOTOR CONTROL SIGNAL FOR UNLOADING

CN520:[PIN21] CN520:[PIN21]
CN520:[PIN23] CN520:[PIN23]
FEW FEW
CN506:[PIN9] CN506:[PIN9]
CN506:[PIN10] CN506:[PIN10]

REW REW

LO+ LO+

LO- LO-

2-17
 CIRCUIT VOLTAGE CHART
IC101 IC301 IC801
PIN PIN NAME VOLTAGE PIN PIN NAME VOLTAGE PIN PIN NAME VOLTAGE

AM FM TUNER CD B/T USB 1 TAB 0

Mode Mode MODE MODE MODE MODE 2 PWR_GND 0
1 AMRFIN 2.9 - 1 GND 0 0 0 0 3 OUT 7.2
2 AMRFDEC 4.2 - 2 FREG_B - - 13.6 - 4 STBY 5
3 FMIN2 - 3.1 3 FREG_F - - 1.24 - 5 OUT 7.2
4 FMIN1 - 3.1 4 ILL_8.4 8.4 8.4 8.4 8.4 6 VCC 14.3
5 GNDRF GND GND 5 CTL4(FREG) - - 5 - 7 OUT 7.2
6 VCC2 8.3 8.3 6 CD_8 V 8 8 8 8 8 PWR_GND 0
7 AMRFAGC 1.8 - 7 DSP_3.3 V 3.3 3.3 3.3 3.3 9 OUT 7.2
8 LOUT 3.8 3.8 8 BACK UP 14.1 14.1 14.1 14.1 10 RIPPLE 8.4
9 ROUT 3.8 3.8 9 CTL3(ILL) 5 5 5 5 11 IN 6.9
10 GNDAUD GND GND 10 AUDIO_8.4 V 8.4 8.4 8.4 8.4 12 IN 6.9
11 AMIFAGC2 - - 11 CTL1(6,7,10) 5 5 5 5 13 PRE_GND 0
12 MPXIN 3.7 3.7 12 EXT(P.ANT) 13.8 13.8 13.8 13.8 14 IN 6.9
13 MPXOUT 4 4 13 CTL2(P.ANT) 5 5 5 5 15 IN 6.9
14 RSSI 1.2 0.8 14 VDD_5.6 V 5.6 5.6 5.6 5.6 16 AC_GND 6.9
15 XTAL2 6 6 15 BACK UP 14.1 14.1 14.1 14.1 17 OUT 7.2
16 XTAL1 6 6 18 PWR_GND 0
17 GNDD GND GND 19 OUT 7.2
18 SCL 4.7 4.7 20 VCC 14.3
19 SDA 3.9 3.9 21 OUT 7.2
20 VREF 4 4 22 MUTE 5
21 VREGSUP 7.1 7.1 23 OUT 7.2
22 VCC1 8.3 8.3 24 PWR_GND 0
23 GND GND GND 25 OFFSET 6.4
24 VCODEC 5.7 5.7
25 PLL - -
26 PLLREF 2.25 2.25
27 TEST - -
28 AMSELIN1 1.55 -
29 AMSELIN2 1.55 -
30 AMIFAGC1 3 -
31 AMSELOUT1 6.8 -
32 AMSELOUT2 6.8 -

2-18
 IC802 CN402
PIN PIN NAME VOLTAGE PIN PIN NAME VOLTAGE
1 CD_R 4.2 1 DI 0
2 CD_L 4.2 2 AGND 0
3 BT_R 4.2 3 DO 0
4 BT_L 4.2 4 LCH 0
5 TUNER_R 4.2 5 CLK 0
6 TUNER_L 4.2 6 AGND 3.259
7 AUX_R 4.2 7 LOAD_SW 0
8 DN 4.2 8 RCH 4.99
9 AUX_L 4.2 9 LG2TA 4.98
10 N.C 4.2 10 AGND 4.98
11 N.C 4.2 11 CE 0
12 N.C 4.2 12 8V 0
13 N.C 4.2 13 TA2LG 8.05
14 BEEP 4.2 14 3.3 V 0
15 MUTE 5 15 GND 0
16 LRST - 16 GND 4.78
17 LDOUT - 17 GND 0
18 OUT_SL 4.2 18 GND 5
19 OUT_SR 4.2 19 RESET 4.98
20 OUT_RL 4.2 20 GND 0
21 OUT_RR 4.2 21 FEW_IN 4.99
22 OUT_FL 4.2 22 GND 5.02
23 OUT_FR 4.2 23 REW_IN 0
24 VCC 8.4 24 GND 4.76
25 SCL 4.9 25 8/12 4.76
26 SDA 4.9 26 GND 1.54
27 GND 0 27 RESERVED 2.52
28 FIL 4.2 28 GND 2.52
29 CHUK_SW 5.06
30 GND 0.02

2-19
 INTERNAL BLOCK DIAGRAM OF ICs
1. IC301 (HA13173AH)
1-1. BLOCK DIAGRAM

+B
VB DBUP C1
8 100uF
C2
0.1uF
Over voltage detect 15 VBUP
3.5V
CTL 1
11 CBUP
100uF
1.5V BIAS TSD
CTL 2
13
VREF
2.5V
CTL 3 VDDOUT
9 14

2.5V CVDD
10uF
CTL 4
5

2.5V DSPOUT
7
CDSP
DEXT1 EXTOUT 10uF
12
DEXT2 VREF CDOUT
CEXT 6
10uF CCD
VREF
ILMOUT 0.1uF
4
CILM
0.1uF
AUDIOOUT
10
FREG B
2 CAUDIO
10uF
QFREG 3 TAB
1
RFREG3
FREG F GND GND
CFREG RFREG1
10uF

RFREG2

2-20
1-2. PIN FUNCTION (Note1)

Protection function
Pin No. Pin name Function Normal (Note2) (Note3) (Note3)
operation TSD On VB=24V VB=50V
1 GND Ground - - - -
2 FREG_B External Trs bass drive (Note4) On/Off On/Off Off Off
3 FREG_F FREG feedback terminal On/Off On/Off Off Off
4 ILMOUT 8.4 V output for JLM/500mAmax On/Off Off Off Off
5 CTL4 FREG control terminal - - - -
6 CDOUT 8.0 V output for CD/1.3Amax (Note4) On/Off Off Off Off
7 DSPOUT 3.3 V output for DSP/250mAmax (Note4) On/Off Off Off Off
8 VB Battery - - - -
9 CTL3 ILM control terminal - - - -
10 AUDIOOUT 8.4 V output for AUDIO/500mAmax (Note4) On/Off Off Off Off
11 CTL1 DSP, CD, Audio control terminal - - - -
12 EXTOUT High side output/600mAmax (Note4) On/Off Off Off Off
13 CTL2 EXT control terminal - - - -
14 VDDOUT 5.7 V output for micro controller (Note4) On On On Off
15 VBUP Back up - - - -

Note1. In the uper table. “On” means always On. “Off” means compulsory Off and “On/Off” means that it can control by con-
trol terminal.
Note2. Thermal protection circuit
A built-in thermal protection circuit (TSD:Thermal shut down) prevents thermal damage to the IC. All outputs except
VDD(pin14) and FREG (pin2&3) are switched off when the circuit operates, revert to the original state when the tem-
perature drops to a certain level.
Note3. Overvoltage protection circuit
The overvoltage protection circuit (surge protector) turns off all outputs without Vdd, when VB voltage is more than
about 21V. And the overvoltage protection circuit (surge protector) turns off Vdd output with other all outputs, when
VB voltage is more than about 26V. When the overvoltage protection operates on VB>=18V condition, the stand by
current increases.
Note4. Overcurrent protection circuit
FREG_B (pin2), ILMOUT (pin4), CDOUT (pin6), DSPOUT (pin7), AUDIOOUT (pin10), EXITOUT (pin12), VDDOUT
(pin14) output circuits are built-in overcurrent protection circuit based on the respective output current. These over-
current protection circuits limit the current with a curve shape of “7” in the voltage-current graph. This prevents IC
destruction due to overcurrent.

2-21
2. IC801 (TB2946HQ)
2-1. BLOCK DIAGRAM

C5

C3
C2
10 1 6 20
Ripple TAB VCC2 VCC1

C1 IN1
11 Out1 (+)
9

PW-GND1
8 RL
Out1 (-)
7

C1 IN2
12 Out2 (+)
5

PW-GND2
2 RL

13 Pre-GND Out2 (-)

3

C1 IN3
15 Out3 (+)
17
PW-GND3
18 RL
C6
16 AC-GND Out3 (-)
19

C1 IN4
14 Out4 (+)
21

PW-GND4
5V 24 RL
4 Stby Out4 (-)
Play 23
R1
Mute 22 Mute
C4

Offset/short 25

2-22
3. IC802 (BD3702FV)
3-1. BLOCK DIAGRAM

3-2. PIN DESCRIPTION

Terminal Terminal Terminal Terminal

Description Description
No. Name No. Name
1 A1 A input terminal of 1ch 15 MUTE External compulsory mute terminal
2 A2 A input terminal of 2ch 16 LRST Level meter reset terminal
3 B1 B input terminal of 1ch 17 LOUT Output terminal for Level meter
4 B2 B input terminal of 2ch 18 OUTS2 Subwoofer output terminal of 2ch
5 C1 C input terminal of 1ch 19 OUTS1 Subwoofer output terminal of 1ch
6 C2 C input terminal of 2ch 20 OUTR2 Rear output terminal of 2ch
7 DP1 D positive input terminal of 1ch 21 OUTR1 Rear output terminal of 1ch
8 DN D negative input terminal 22 OUTF2 Front output terminal of 2ch
9 DP2 D positive input terminal of 2ch 23 OUTF1 Front output terminal of 1ch
10 EP1 E positive input terminal of 1ch 24 VCC Power supply terminal
11 EN1 E negative input terminal of 1ch 25 SCL I2C Communication clock terminal
12 EN2 E negative input terminal of 2ch 26 SDA I2C Communication data terminal
13 EP2 E positive input terminal of 2ch 27 GND GND terminal
14 MIN Mixing input terminal 28 FIL VCC/2 terminal

2-23
4. IC901 (MC5502)
4-1. PIN CONFIGURATION

4-2. BLOCK DIAGRAM

2-24
4-3. PIN DESCRIPTION

Pin No. Pin Name I/O Pin Description

1 ~ 12 SEG1/ P1 ~ O LCD Segment output pins / General-purpose output pins(Only 1/4Duty Mode)
SEG12/ P12 Select Segment output pins or General-purpose output pins by the instruction.
13 ~ 51 SEG13~SEG51 O LCD Segment output pins.
52 SEG52/ COM0 O LCD Segment output pin or LCD Common output pin.
SEG52 in 1/3 Duty use, COM0 in 1/4 Duty use.
53 ~ 55 COM1 ~ COM3 O LCD Common output pins.
57 INH\ I Display off control input pin
INH\ = VSS, Display forced off INH\ = VDD, Display on
58, 59 VLC1, VLC2 I/O LCD power supply
61 OSC I/O Oscillator output pin.
62 CE I Chip enable input pin
63 SCK I Shift clock input pin
64 SI I Serial Data input pin
56 VDD - Power supply
60 VSS - Ground

2-25
2-26
WIRING DIAGRAM

B+, ACC,
Phone Mute,
Dimmer,
Speaker Out,
Power Ant Pick Up Motor

ANT POWER 17PIN 11PIN

HARNESS
SK101 CN519 CN506

CN302

30PIN 30PIN
MICOM DSP
CN402 CN520

PN901

MAIN BOARD 24PIN CD BOARD

24PIN
1LINE LCD (VA TYPE)
CN971

FRONT BOARD
2-27 2-28
BLOCK DIAGRAM

LINE-OUT
BLOCK

F/L

R/R
F/R

R/L
LINE_OUT : 2V
FL FR RL/SW RR/SW

BACK/UP
OUT RR+
OUT FR+

OUT RL+

REMOTE
OUT RR-
OUT FL+

OUT FR-

OUT RL-
OUT FL-

T/MUTE
A/ANT

GND
MUTE

DIM

ACC

N.C
TUNER-On-Board NXP Tiger-RDS(IC101)

TB2946 ALL MODEL

RL/RR : LINE_OUT
SUBWOOFER OPTION

21

23
24
19

PW_GND 18
17
7

5
8

2
9

AGND
+

+
-

VCC2

KDS160E
FL FR RL RR TEL MUTE

20

800uH
AC_GND
MUTE

ST_BY

VCC1
SVR

BACK UP 14.4V
AM TUNER PLL TUNING POWER SUPPLY I2C BUS

13 S_GND
SYSTEM

25 HSD

1 TAB

A1504

C3875S
22
11

15

16
14
12

10
4
2.2K
FL
2.2K
FR TELMUTE_3.3V
STEREO DECODER SIGNAL
IMPROVEMENT 2.2K
HIGH CUT RL
FM TUNER RDS CONTROL
SOFT MUTE 2.2K
DEMODULATOR NOISE BLANKER BANDWIDTH RR BACKUP_ON_14.4V TEL_MUTE
CONTROL

22K
22K

22K

22K
SWLSWR

2
AGND

8.2V
CD

3
KDS181 1
AUDIO 8.4V
PLL TUNING
SYSTEM
USB

C3875S
PICK UP 87F14C8A

DSP SDRAM
GND

12MHz
LD LD
MD
R Tamul DVDD
DVDD USB 11P CNT FFC
ACC_IN
USB
T-
F-
F+ @refe

ON/OFF CONTROL
T+
PDGND KIA278R05 USB 5V
E E

DC OUTPUT
A A

DC INPUT
D D
C C B DVDD

GND
B B F

SPD
F

SLD
F

TD
FD
VC SVDD
2SA1797

3
2

1
VCC AVDD
BACK UP 14.4V
L_MTR L_CTL MUTE CD MOTOR DRV 8V
AGND
SDA SCL USB_5V
C105S
C

I 2 C BUS LOGIC BUFFER B

F+
T+

SLD
SPD
FD
TD
T-
F-
DO CE CL E
USB_ON
UART_TX

DVDD
2.2UH

2.2UH
AM5810FM

AVDD

SVDD
2.2UH
+ USB SW_OUT
+ DO CE CL

SP+
LO+
SL+

LO-
SL-
SL+ AGND
SL-
F F F F F SP+
LO- B1366
LO+

11.CHUCKING(SLED)
#3

28.OPTION SDRAM

CD_OPTION RAM
BT 3.3V BACK UP 14.4V
CD POWER 5V

CD_LOAD_SW

CD_SLED_SW
LPF

16.DR IC MUTE

26.ZERO MUTE
5. AUDIO 8.4V

14.DAC MUTE

29.5V MICOM

LIMIT_SW
22.SPI(DO)
+

20.SPI(CE)
19.SPI(CL)

12/8_SW
21.SPI(DI)
6. DSP 5V

18.RESET

25.INTIB2
13.CD 8V
9. LD SW

24.INTB1
15.PGND

23.SGND
7. DGND

10.12CM
2. AGND

4. AGND
3. CD_R
1. CD_L

17.REW
12.FEW

27.N.C

30.N.C
8. INN
LOUDNESS AGND
AGND
BD3702FV 3 Band P-EQ(Tone control) POWER VCC
BACK UP 14.4V
AUDIO 8.4V B+ DETACT
VDD_5.6V
VOLUME1/MUTE VDD_5V

LEVEL METER I2C

Bluetooth 5V KTA1504 @refe

INPUT GAIN ATT
C105S

@refe
4.7K
VDD_5V_1

PWR_5V
Input selector (3 single-end and 2 stereo ISO) NEC UPD78F1165GF MULTI Regulator
30,47,50,99,100 PIN(40mA)
19.2M MICOM STAND BY 5V POWER_ON
RAM Serial Interface FREG_B FREG_F
CTL1
AD CONVERTER VDD_5V PWR_5V KTA1504 @refe SENSE OVER
FLASH EEPROM RESET
(A1,A2) (B1,B2) (C1,C2) (DP1,DN,DP2) (EP1,EN1,EN2,EP2) (MIX) VOLT POWER_ON
S7133SF CTL1
TIMER 6,10

@refe
32.768K

4.7K
SYSTEM CONTROL 16Bit/8Bit/Watch TSD BIAS CDP_PWR_ON_8V
RESET VDD ACC_OUT
FLMD0 VSS CTL2 PANT
AUX L/R REGC EVDD 59:B+ DETACT 12

PWR_5V
Operation Voltage BT 5V Vref DIMMER
1.8V to 5.5V CTL3
TUNER L/R I/O PORT CLOCK
PWR_5V 4 POWER_ON
CD L/R Total:71 MAIN CLOCK: 8MHz

VOL_DOWN
CMOS Output:1 78K0 CPU WDT CLOCK: 240KHz CTL4 ACC_OUT(B/T)

VOL_UP
N-ch O.D I/O:4 SUB CLOCK : 32.768KHz VDD_5.6V 200mA MAX 14
CMOS I/O:66
BLUETOOTH L/R CTL2
DSP 3.3V A.ANT
250mA MAX 600mA MAX
VDD_3.3V
7 12
2

CTL3

Vref
CD OUTPUT
1

LCD B_Lighting/LED
BT ANTENA 8.0V 1300mA MAX 8.4V 500mA MAX
6 4
Back up Voltage
VDD_5V_1
2
EEPROM AUDIO
8.4V/500mA MAX
CTL4

AUDIO 8.4V 10

BT 5V PWR_5V
BT MODULE

FRONT_OPEN
PWR_5V

LBMX-2CC9B
REMOCON_5V

Vnon-inv2
-Vcc +
4 Vnon-inv1 5
KEY2

KEY1

LEFT
-
+
DETACH S/W RESET_SW
RIGHT 3 -
Vinv2 6
1

4 2
FRONT_DETECT
LED 8.4V
2 Vinv1 Vo2 7 DIM_IN
3 1
4
2

Vo1 +Vcc
FRONT CLOSE

1 8 DIMMER_IN
LCD 8.4V

S4580
PWR_5V

3PIN

4PIN
13PIN

REMOTE IN @refe

BLUETOOTH MODULE (MCS LOGICS) FRONT BLOCK

VOUT
GND

GND

VCC
1

2
3

VOLUME UP/DN REMOTE IC

WHITE
BLUE

RED

4 5
E D LCD DRIVER IC
3

VOLUME
COGtype(Flip-D)_100P
4

4
2

A COM B MC5502(Detach)_64P
3

1 2 3
4

4
2

SWITCH1 SWITCH2
1/3 BIAS 1/4 DUTY

SEG CONTROLL

USB
JACK LCD

AUX_IN

2-29 2-30
CIRCUIT DIAGRAMS
1. MAIN CIRCUIT DIAGRAM

12

11

10

MAIN
1
EBY60748501_3_1
2010. 06. 17
A B C D E F G H I J K L M N O P Q R S T

2-31 2-32
2. FRONT CIRCUIT DIAGRAM

12

11

10

FRONT
1
EBY61308501_2_1
2011. 02. 15
A B C D E F G H I J K L M N O P Q R S T

2-33 2-34
3. CDP CIRCUIT DIAGRAM

12

11

10

CDP
1
EBY60708101_4_3
2010. 06. 17
A B C D E F G H I J K L M N O P Q R S T

2-35 2-36
PRINTED CIRCUIT BOARD DIAGRAMS
1. MAIN P.C.BOARD
(TOP VIEW) (BOTTOM VIEW)

2-37 2-38
2. FRONT P.C.BOARD
(TOP VIEW)

(BOTTOM VIEW)

2-39 2-40
3. CDP P.C.BOARD
( TOP VIEW ) ( BOTTOM VIEW )

2-41 2-42
SECTION 3 EXPLODED VIEWS
1. CABINET AND MAIN FRAME SECTION

Accessory
451

Loc.No. 801 Loc.No. 818

298
274 453

A43
A45
451
Loc.No. 835 Loc.No. 850
LCD901 A26
FRONT

279
A50 281
282 451
A41
451
280
A46 CDP

284
285 290
297
276 283 MAIN
450
451

451
255
456
258
454 451
251

294
450
257
293

256 292
250 254
A42
253
252

3-1 3-2
2. MECHANISM(PICK-UP) SECTION

A26

A03

3-3 3-4