Samsung

Samsung Home
Home Theater
Theater

-Home Theater System –

HT-X710 / HT-X715
Project : 08DESIGNHTS(AY070A) / Project Grade : 3

Samsung Electronics Co. LTD

Digital Audio/Video Division 1
 List Of Contests

1. Introduction of the HT-X 715(X 710)

2. General Feature of the HT-X 715[X 710]
3. D escription of the SET
4. How to disassemble the M ain set
5. Special feature of the HT-X 715
6. PCB block diagram & trouble shooting
7. M ECHA D ECK disassemble
8. M icom /M PEG Update & Initialization method
9. HT-X 715 B LOCK D IA GRA M /Schematic D iagram

2
INTRODUCE : HT-X710

• RTS : 2008, Apr.

• 400W Power
• 2.1 CH HTiB
- Virtual 5.1 Ch Surround
• Bluetooth
• Special Audio DSP
- S mart Volume
- Audio Up-scaling
- P ower B ass
• i-Pod (Only US)
• Full K araoke for C IS
• HDMI /w 1080P up-scale
- Anynet+(HDMI CEC)
• USB Host w/ video playback
• DVD-Audio Playback 400W
Power Playback
• 2 way 3 speaker
INTRODUCE : HT-X715/TX715

※ HT-K X715 : Full K araoke with X715

• RTS : 2008, Apr
※ HT-TX715 : Tallboy S peaker C ombination
※ HT-TKX715 : Full K araoke with TX715
• 800W Power
• 5.1 CH HTiB
• Bluetooth
• Special Audio DSP
- S mart Volume
- Audio Up-scaling
- P ower B ass
• ASC
• i-Pod (US Only)
• Full Karaoke for CIS
• HDMI /w 1080P up-scale
• USB Host w/ video playback 800W
Power
• DVD-Audio Playback Playback

• 2 way 3 speaker
2. General Feature

Power 5.1 C h : 800W / 2.1 C h : 400W 3 ohm 10% THD

D olby D igital, D TS , D P L II decoding

D SP
Virtual 5.1C h S urround, M P 3 E nhancement, S mart Volume

D VD Audio/Video, C D , D IVX , M P 3, P hoto, VC D P layback E xcept US , C anada, E U, C IS

1disc loading (slot-in type)

Playback
FM R adio

AV sync For D VD P layback

V ideo P rogress ive S can

US B host (mp3, W M A, W M V, JP G , M P G , D IVX playback)

wireless ready O nly X 715

Audio Input : R C A (rear)), S tereo-in (front)

O ptical Input
Connectivity C omponent (P rogress ive S can)

C omposite

Ipod docking US O nly

Bluetooth
HD M I O ut

2 way type s peaker (tweeter + mid range unit) E xcept R ear s peaker

Table Top + A100 S peaker X 715

Speaker
Table Top X 710

Anti-magnet, W all M ount Hole O nly front & center

ETC Full Karaoke for C IS

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3.Description

1 2 3 4 5 6 7 8 9

10
11
12

13

6
3.Description

Function Description
1. P ower B utton P ower O n/O FF
2. D isc Tray S lot In Type D isc Insert Hole
3. O pen/C lose B utton D isc O pen/C lose B utton
4. Function B utton M ode S election button. (D VD /US B /FM /AUX 1,2/D .IN)
5. S kip B utton B ack S kip B utton
6. S top B utton D isc S top B utton
7. P lay / P ause B utton D isc P lay & P ause B utton
8. S kip B utton Forward S kip B utton
9. Volume C ontrol B utton Volume C ontrol B utton (0~50)
10. AUX 1/AS C JAC K AUX 1 ANALO G INP UT JAC K / AS C M IC Jack (X 715 O nly)
11. Headphone JAC K Headphone output Jack
12. IP O D JAC K IP O D docking jack ( US O nly )
13. US B P O R T US B input port

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3.Description

1 2 3 4 5

9 8 7 6

8
3.Description

Function Description

1. S peaker O ut 5.1 C hannel S peaker O utput C onnectors

2. C omponent O ut C omponent Video O utput C onnectors (C onnect to TV)

3. Video O ut C omposite O ut. C onnect to TV

4. Optical Input E xternal D igital O ptical Input C onnector

5. FM Antenna For FM Antenna C onnection

6. HD M I O ut HD M I O ut Jack (C onnect to TV HD M I INP UT)

7. TX Card Connection
If customer buy the S W A-4000 M odule, insert the TX C ard into the slot.
(WIRELESS)

8. AUX IN 2 JAC KS AUX (L/R ) Input from Analog D evices

9. C ooling Fan C ooling Fan to control inside temperature

9
Accessories

AH39-00725C
AH39-00923A AH39-00925A
AH39-00725B

AUX/VIDEO HDMI OPTICAL

Cable CABLE CABLE

AH42-00018A AH59-01907P
AH59-01907P(HT-X715, EXP)
AH59-01907N(HT-X715, KOR)
AH59-01907K(HT-X710, EXP)

FM Remote
ANTENA Controller

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4.Disassemble / Reassemble

1. Separate the DECO-REAR

1. Remove the 2 screws(M3X10:BLACK))

from the DECO- REAR.

2. Separate the CABINET-REAR

1. Remove the 11 screws(M3X10:BLACK)

from the CABINET- REAR. 3. Separate the Cable connected to eject key.
2. Separate the Power cable from SMPS.
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4.Disassemble / Reassemble

3. Separate CHASSIS-REAR

1. Remove the 9 screws(M3X8:WHITE)

4. Separate PCB-MAIN

1. Remove the 15 cables.

12
4.Disassemble / Reassemble

4. Separate PCB MAIN

2. Remove the 4 screws(M3X8 :WHITE))

from the MAIN PCB.

5. Separate TUNER PACK

1. Remove the 2 screws(M3X8 :WHITE))

from the TUNER PACK.
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4.Disassemble / Reassemble

6. Separate PCB-OPTICAL

1. Remove the PCB- OPTICAL

from the PCB- AMP.

7. Separate PCB-AMP

1. Remove the 2 CABLES 14

4.Disassemble / Reassemble

7. Separate PCB-AMP

2 .Remove the 4 screws(M3X8:WHITE).

8. Separate ASSY-MECHA

1 .Remove the 4 screws(M3X8:WHITE).

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4.Disassemble / Reassemble

9. Separate USB PCB

1. Remove the 2 screws (M3X8:WHITE)

from the PCB- USB.
10. Separate SMPS

1. Remove the 4 screws (M3X10:WHITE)

from the SMPS.
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4.Disassemble / Reassemble

11. Separate PCB-VFD

1. Remove the screw (M3X8:WHITE)

12. Separate CHASSIS-FRONT

1. Remove the 6 screws(M3X10:WHITE)

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4.Disassemble / Reassemble

13. Separate PCB-FUNC KEY

1. Remove the 3 screws (M1.4X4:BLACK)

14. Separate PCB-POWER KEY

1. Remove the screw (M1.4X4:BLACK)

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4.Disassemble / Reassemble

15. Separate PCB-BLUETOOTH 16. Separate PCB-REMOCON

1. Remove the screw (M3X8 : WHITE) 1. Remove the screw (M3X8 : WHITE)

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5.Special Feature – HDMI OUT

HDMI (High Definition Multimedia Interface)

- Pure Digital for Perfect Vision

 HDMI Output -High Definition DIGITAL Video Out (Up to 1080P)

Digital-to- Digital Signal

Analog Converter Processing

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5.Special Feature -Bluetooth

• Wireless : Easy & Convenient Access

• Communicate with Increasing Bluetooth devices
5.Special Feature – HDMI C EC

HDMI (High Definition Multimedia Interface)

- 100% Digital way of AV Streaming without Loss
- Up Scaled Video Output upto 1080P: Better DVD
- HDMI CEC(Commands go each Devices through HDMI Cable)

HDMI CEC Intellectual Action

1) One Touch Play D isc In → TV ON → A uto Setting → A utoPlay

2) Sysetm Stand-B y Power Off by one Click

3) D eck Control Play, Stop, Pause with A ny Remote

4) D evice M enu Control Send menu command by TV remote

5) Remote Control Pass Through Channel, V olume Up /D N

●
●
●

13) V endor Specific Commands

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5.Special Feature – Aux Input

AUX 1 – Side AUX INPUT (Analog Device Connection)

- Walkman, ipod, MD etc
- connect with any kinds of Portable Audio device
- Stereo Input in Front

DRM ?? UMS/MTP ??

Docking Type ??

 Analog way !

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5.Special Feature – Wireles s R eady

Expandable - The choice is yours!

 Wireless Ready Home Theater System

TX Card

Wireless Module Wireless Surround Home System

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5. Special Feature – Wireless Ready

5. BLOCK DIAGRAM

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5.Special Feature – Wireless Ready Check

- Wireless ready module

- Wireless ready port

SWA4000
Standby(Time Line) Power on Communication Error DATA/CLK PORT

FINT DATA/CL
K

ID SET
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iPod block

IPOD *Depending on the type of iPod. You may need to insert one of the dock slots
into the dock before you station your iPod
6.MAIN PCB Block

(1)M AI N TOP

Micro
ADC IC Controller

HDMI IC MOTOR Drive

IC
MPEG

HDMI CEC IC

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6.MAIN PCB Connectors

MCON2 CN8 CN3 CN7

RCN3
CN11
MCON1
RCN2

JCN01 ICON1

RCN1
CN5
CN1

R EF. R EF.
PIN C ON. AS S 'Y FUNC TION PIN C ON. AS S 'Y FUNC TION
NAM E NAM E

JC ON0 IPOD C ONTR OL/DATA LINE

28P AM P ANALOG VIDEO DATA LINE IC ON1 15P JAC K
1 (US ONLY)

M C ON1 30P AM P S OUND DATA LINE C N1 13P TUNER TUNER Data / Power Line

M C ON2 15P S M PS POWER S UPLLY LINE C N5 4P JAC K US B DATA / POWER LINE

C N8 4P EJEC T K EY EJEC T C ONTR OL R C N3 5P M EC HA DVD M EC HA C ONTR OL LINE

DVD M EC HA C ONTR OL / DATA

C N3 24P VFD VFD / FUNC K EY C ONTR OL R C N1 24P M EC HA
LINE
POWER
C N7 4P POWER ON/OFF C ONTR OL R C N2 6P M EC HA DVD M EC HA C ONTR OL LINE
K EY

C N11 15P JAC K AUX/HEADPHONE LINE

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6.MAIN PCB Block

(1)M AI N BOTTOM

FLASH ROM
DSP
IC

SDRAM

ANALOG
VIDE IC

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6.SUB PCB Connectors

UCN11
FCN11 ICON1

R EF. NAM E PIN C ON. AS S 'Y FUNC TION

UC N11 4P M ain B oard – C N5 US B Data (US B HOS T Play)

IC ON11 15P M AIN B OAR D – IC ON1 IPOD DATA/POWE R ( US ONLY)

FC N11 15P M ain B oard – C N11 Headphone/AUX(AS C )

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6.SUB PCB Block

WIRELESS
Slot OPTICAL IN
MIC(CIS ONLY)

AUX 1

H/P

IPOD( US ONLY)
VFD

USB

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6.AMP PCB Block

PWM
MODULATOR
IC

POWER STAGE
TAS5352

LOW PASS FILTER

FAN CIRCUIT
SPEAKER
RCA JACK
JACK

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6.Block Diagram (Amp IC)

PS9829B

34
6.AMP Modulator (PS9829B)

MICOM
CONTROL REAR R
LR CLOCK

REAR L
FRONT R
DATA IN
FRONT L

CENTER

SUBWOOFER

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6.AMP Power Stage TAS5352

1)

1)OTW : During active mode, If internal temperature of the IC is over

heated (150℃) OTW is working and auto shut downed

2)
2)TAS5352 #5 pin : Protection, Auto Shut Down (open or short )

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6.SMPS Protection

The Condition of Power Protection Active

1> Voltage of SMPS’s PVDD(+32V,CN2) is higher or lower than Standards
Normal Condition Voltage Range : PVDD(+32V,CN3) : about 32V
2> Over-current occurs to AMP IC (Over-output or Output short)
3> AMP IC’s temperature exceed 150℃
4> No supply voltage on GATE DRIVER

Protection Circuit active

LOACATION PIN NO. NOTE
OPEN SHORT

+8V X -
+5V X O
SMPS CN3
+3.3V X X
+5.6V X X
+42V X X
CN4 PVDD(about 32V) O O
CN5 -12V X X
+12V X O

37
6. AMP Pre-Inspection relating to Power Protection

If you think, there are problems at the AMP PCB, you can check
the pcb without disassemble the set.
(Caution!! : Do not connect t he power cor d dur i ng bel l ow
t es t ! )
SET Measurement Resistance using Tester
- Approximately -

5.1CH Speaker Out CH HT-X715 (X710)

GND FRONT R CENTER

F/R CH 10kΩ
FRONT L

CENTER 10kΩ

SUBWOOFER 10kΩ
REAR R SUB WOOFER REAR L
If Measured Resistance is very different from
above numbers, There is a Problem.
AMP PCB Problem
FOR HT-X710 Series, there are only Front,
Sub woofer out.

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6.MAIN PCB (HDMI&VIDEO OUT)

HDMI TX IC

VIDEO 6dB AMP IC

MPEG IC

39
6.Block Diagram in detail (HDMI&VIDEO OUT)

C ompos ite
G (Y)
6dB AM P C omponent B(P b)
LA73054 R (P r)

MPEG IC Analog Output

ES8391
HD M I TX IC
E S 7108
HDM I-Out

S D R AM

40
6. FAN Error Check

HT-X715 has one small Fan and Fan Circuit to control the temperature of the SET
inside
FAN is Automatically worked (Approximately 45 Sec after power On)
If there are problems, “FAN CHK” will be displayed and power off.
1.Symptom
Display “FAN CHECK”  Power Off (about 1 minute)

2.Methood
1.Check the Fan Connector  AMP PCB [AJ4]
2.Check around the Fan (something is blocking the FAN or not)
3.Check the FAN Circuit (Check FAN circuit is shorted or opened )

2.FAN Circuit

1.FAN Connection

AMP PCB Check

41
6. FAN CHECK Error

3.Procedure

• Micom is sending a start message to FAN by P_FAN

• Check the FAN_SENS Port (Connection, Operating)
• If there are problems, send a message “shut down” to
FAN_SD port
(Voltage Check)

P_FAN

FAN_SENS

Connect to SPK OUT

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6.Communication Failure

S ymptom C aus e C heck Point

1 R es et Line
S ET is not working . R es et Line problem
(MIC OM#8,MPEG #83)

MAIN PCB

UIC1 MICOM
#8 RESET

MIC1 MPEG
#83 RESET

RESET Insecure : It should be 3V after power ON

43
6.Communication Failure

S ymptom C aus e C HE C K P O INT

3
S pecific D IS C can not P LAY(D UAL) 3.3V, 5V drop M VC C ,R F50V,VD 33R F

MVCC

RF50V

VD33RF

44
6.Communication Failure

S ymptom C ause C HE C K P O INT

4
M alfunction & Ins ecure P lay 3.3V, 1.45V drop P IC 1 1117AC E Voltage

VDD1.2 : 1.1~1.3V

VD33 : 3.3~3.5V

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6.Communication Failure

S ymptom C aus e C HEC K POINT

No Action & No Play MPEG -MIC OM C ommunication TXD:MIC OM#6->MIC 5#15

5 Line open or s hort R XD:MIC OM#72->MIC 5#2
S TB :MIC OM#73-MIC 5#17
AC K :MIC OM#70-MIC 5#4

TXD: MICOM#6->MIC5#15 STB: MICOM#73-MIC5#17

RXD: MICOM#72->MIC5#2 ACK: MICOM#70->MIC5#4

46
7.Checking out AMP PCB

1.PCB ASS’Y 2.HEAT SINK 3.PCB Short

C
CEH
K

Unfasten 4 Screws Separate Heat Sink Check Power ICs

TAS5352

47
8.AMP PCB Short Check flow

1) Check par t s . ( s hor t / I C

damage/ pat t er n damage)

2) Check connect or s

48
9.SMPS Check Flow

1st (AC) 2nd (DC)

1 2
1)Check FUSE & VARISTOR
2)Check the AC Input Cord

3 4 3) Check cables
4) Check short or open

49
10.Deck Assy. AH59-01773A

50
11. Disassemble (MECHA-DECK)

1.To Protect PICK-UP, Before detach Flat Cable that point should be shorted.

2. Separate Pick-Up Cable from the Holder

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11. Disassemble (MECHA-DECK)

2 points

3. Unfasten 2 Screws lift up Holder-Cable

4. Unfasten 4 Screws saparate Traverse-Deck

52
11. Disassemble (MECHA-DECK)

Traverse-Deck

Rubber-Deck

Holder-Cable

53
12.MICOM Initialization & Update

. Micom Reset
During STANDBY mode , push the ‘Remote controller’s STOP’ button 5 Second.
If red LED blinking, reset is finished.

. Micom Update (Only for Flash Micom)

Back of the Set there is a slide hole for update JIG.
To update Micom, it need Computer, Rom Writer, USB Cables

. Micom & MPEG Version Check

1) Play Disc or USB
2) Eject(Open) Disc , Push the Remote Controller “MENU” button.
3) Push the number ‘8’, ‘9’, ‘5’ in order, and push ‘Enter’ button.
4) Check the display or OSD

. DVD flash initialize & Update method

1) Prepare HEX file at DISC or USB Memory
2) Insert Disc or USB Memory, and play. ‘Updating’ will be displayed. Set will be power off  on
3) The disc is automatically ejected. (If you use USB memory, detach USB memory)
4) During “No Disc” Displayed, push the stop button 5 seconds. After displayed ‘INITIALIZE’ power off
5) Finished
54
13. Troubleshooting - Main

Replace SMPS
UIC1 Micom Power
Main PCB; pin +5.6V
#14,40,55,89 5V? MCON2(#5)
CHECK->5.6V?

Check Pattern +5.6V

Line.

Replace SMPS
Check for Power Sense,
POWER- MCON2(#7)
SENSE(5V) at CHECK ->5V?
Main PCB
:pin #26 of UIC1
Check pattern Power
Sense Line

Check for
Power_ON(0V) at Replace Micom(UIC1)
Main PCB
:pin #38 of UIC1

Check UQ2(KSR2103)

55
13. Troubleshooting – Output

No Sound

CHECK
POWER
PVDD(+32V), Replace SMPS
+12V,
-12V CHECK
AMP
PCB(PCON1/
PCON2)

ADC INPUT
CHECK

Check AUX1,AUX2
AIC1(CS534 JACK Pattern Check 5V,3.3V Pattern
5)
AUX2 : #7,8
AUX1 : #9,10
TUNER :
#11,12
AIC1(CS5345)
power Replace AIC1
ADC OUTPUT #36,30,14(5V)
CHECK ,46(3.3V)
check
AIC1(CS534
5) #41 AIC1(CS5345)
CHECK control
#1,2,3,4,6 Check AIC1's Control
check
Line Pattern
 MPEG INPUT
CHECK
Check AIC1 & MIC1 Data
Line Pattern
MIC1(ES839
1) #65
CHECK

MPEG OUTPUT
CHECK
Replace MIC3
MIC1(ES839
1)
#117,118,12
1 CHECK
MIC3(AT26D
Replace MIC1
F161A)
LRCK,SCLK,MCLK
Control Pin
CHECK
#1,2,5,6
CHECK
MIC1(ES839
1)
#82(MCLK),
#116(LRCK),
#123(SCLK)
CHECK

PWM INPUT
CHECK
Check MIC1 & U1 Data
U1(PS9829B Line Pattern
) #15,16,17
CHECK
PWM OUTPUT
CHECK Check U1's Power pin
U1(PS9829B) pattern.
U1(PS9829B) POWER(3.3V)
#48,49,51,52, #4,10,22,29,3
54,55,61,62,6 9,,47,56,65,72
7,68 CHECK ,84,87,94
CHECK
Replace U1.
AMP IC OUTPUT
CHECK
AIC6,7,8(TAS
AIC6,7,8(TAS
5352
5352)
POWER(+12V)
#28,31,36,39
#1,22,23,44
CHECK
CHECK

SOUND OUTPUT OK
14.HT-X715 Block / Schematic Diagram

BLOCK Diagram

MAIN SMPS

BLOCKDIAGRAM

ORTP-504
KEY

AMP

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