Samsung

Samsung Home
Home Theater
Theater

-Home Theater System –

HT-TXQ120
Project : Tarzan / Project Grade : 3

Samsung Electronics Co. LTD

Digital AV Division
1
 List Of Contests

1. General Feature of the HT-TX Q120

2. D escription of the SET
3. How to D isassemble M ain Set
4. How to D isassemble Sub Woofer
5. Special Feature
6. PCB B lock D escription & Trouble Shooting
7. M ECHA D ECK D isassemble
8. M icom /M PEG update & Initialization method
9. HT-TX Q120 B LOCK D IA GRA M /Schematic D iagram
10. A ccessories

2
1. General Feature

TOTA L
1000W
Power
D O LB Y D igital, D TS , D olby P rologic II S urround D ecoding
D SP
D NS e 9.1C H Virtual effect

S AC D , D VD Audio / Video, C D , D IVX , M P 3, P hoto, VC D play back US A : C an’t play VC D D isc

Play
Back 1dis c loading (top loading) – S lot In M echa
FM R adio (R D S for E urope) & P reset
V ID EO P rogressive S can (480P -720P -1080i-1080P)
US B host (mp3, W M A, W M V, JP G, M P G , D IVX P lay back)
wireless ready S W A-3000 W ireless M odule is an option.
AUX (1E A) – Audio L&R
IN/OUT O ptical Input (2E A)
VID E O O utput (C omposit) 1E A
C omponent O utput
HD M I in(1E A), O UT(1E A) (Up to 1080P )

SPEA K E 2 way M ulti S peaker

R W all mount ready

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2.Description Of the MAIN SET

FRONT BACK
1
2

3
4 11
5
6 12
7 13
8 14
15
9 16
17
10

1. Power Button 4. Display LED 7. STOP 10. VOLUME 13. OPTICAL IN 1 16.USB Connection
2. Slot In 5. FUNCTION 8. PLAY/PAUSE 11. SYSTEM CABLE 14. HDMI OUT 17.Head Phone Out
3. Eject 6. B.SKIP 9. F.SKIP 12. OPTICAL IN 2 15. HDMI IN

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2.Description Of the MAIN SET

Function Description
1. P ower B utton P ower O n / O ff
2. D isc S lot D isc S lot in / out
3. E ject B utton D isc E ject B utton
4. LE D D IS P LAY LE D D IS P LAY. It display S E T mode, D VD play time, etc..
5. Function button M ode select button. (D VD /US B /FM /HD M I/AUX /D .IN)
6. S KIP button (B ack) B ack S kip B utton (D isc P lay)
7. S TO P button D IS C S top B utton
8. P lay/P ause button D isc P lay and P ause B utton
9. S KIP button (FF) Forward S kip B utton (D is c P lay)
10. Volume Volume control button (0~50)
11. S ystem C able M ain S et  S ub W oofer S et P ower/Video/Audio data communication line
12. O ptical input 2 O ptical D igital audio in 2
13. O ptical input 1 O ptical D igital audio in 1
14. HD M I O UTP UT HD M I O UTP UT. C onnect HD M I C onnector of TV
15. HD M I INP UT HD M I INP UT. C onnect with B D player, G ame C ontroller… which has HD M I C onnection
16. US B For US B Host play C onnect your US B player.
17. Head phone Head phone O ut.

5
2.Description Of the Sub Woofer

FRONT BACK

1 5
6
2
7
8
11 10 9
1. STANDBY LED 4.SPAKER OUT 7.COMPONENT OUT 10. Wireless TX Card Slot
2. POWER ON LED 5.FAN 8.COMPOSIT OUT 11. SYSTEM CABLE
3. ASC MIC IN 6.TUNER ANT 9.AUX IN
6
2.Description Of the Sub Woofer

Function Description
1. S tandby LE D S tandby LE D . (R E D )
2. P O W E R O N LE D P O W E R O N LE D (B LUE )
3. AS C M IC IN AUTO S O UND C ALIB R ATIO N M IC INP UT
4. S P E AKE R Jack 5 C hanel (Front L/R , C enter, R ear L/R ) S peaker W ire C onnection
5. FAN To C ontrol set temperature, Fan is operating
6. FM ANT Jack FM ANT INP UT JAC K
8. C O M P O NE NT JAC K C omponent (Y/P b,P r) O utput Jack
9. C omposit Jack C omposit Video O utput Jack
10. Aux Input AUX (L/R ) Input
11. W ireless TX C ard In S W A-3000 W ireless M odule TX card slot
12. S ystem C able S ystem C able C onnection

7
Accessories

AH39-00725C AH59-01183D AH42-00018A

AH39-00725B

FM
AUX/VIDEO ASC MIC
Cable ANTENA

AH39-00923A AH39-00925A

HDMI
OPTICAL Remote
STAND SCREW
CABLE
CABLE Controller

AH68-01959A 3301-000144

AH59-01643Z (XAA)
AH59-01662B (EXP)
AH59-01662C (EUR)
AH59-01662V (CIS)
STAND
USER FERRITE
MANUAL CORE
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3. How to disassemble the MAIN set

9
3.How to disassemble the MAIN set

1. Disassemble the Back Cover & SYSTEM CABLE

(※CAUTION! The System Cable)

1. Unfasten 12 screws on side of Back Cover

2.Lift the Back Cover.

(※Check The position of the Ferrite Core )

3.Unfasten 4 screws and lift up the cover. 4.Unfasten the System Cable Connector
(UDIN1,UDIN2).
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3. How to disassemble the MAIN set

2. MAIN PCB Disassemble 3. LED PCB Disassemble

HOOK

Unfasten the Cables (Flat/Wire Cables),

Unfasten 4 Screw
Push the hook (4 places) and lift up the Main PCB

4. DVD-MECHA Disassemble 5. DECO-LED Disassemble

HOOK

Unfasten the 4 Screw and lift up the DVD- MECHA Push the HOOK(2 places) and Lift up the pcb
11
4. How to disassemble the Sub Woofer

12
4. How to disassemble the Sub Woofer

1. Dissemble the Assemble

밑면

1. Unfasten 4 Screws of the bottom. 2.Unfasten Screw(7 places) of the assembly.

3.Pull the Assy’ 10 Cm and disconnect two cables Caut i on!

The Connector shod be placed in the rectangle hole.

13
4. How to disassemble the Sub Woofer

2. Lift Up the Cover

2.Unfasten Assy’s Screw(3 places)

1. Unfasten Screw (10places) And Lift Up the Cover

3. Disassemble PCB

(Power Connector)

(※ FAN
Connector) (AMP Flat Cable)

1.Unfasten Screw (4 places) of the AMP PCB and Cables 2.Lift up the AMP PCB

14
4. How to disassemble the Sub Woofer

(POWER Connector) (AMP Flat Cable)

5. Disassemble Jack /SMPS PCB

(LEDConnector)

1. Unfasten Tuner Pack Screw(1 place) 2.Unfasten Jack PCB Screw(4places) and other cables
(Power Cable Connector)

3.Unfasten System Cable Screw(2 places) with (- ) driver. 5.Detatche Power Cable.
4.Unfasten screw (1 place) of the Jack. 6.Unfasten Screw(5 places)

15
5.Special Feature – World First 1080P HTiB

• HDM I : High-Definition Multimedia Interface

• World First 1080 P Support HTiB
• Up Scailling 480P  720P  1080i  1080P

SD HD

16
5.Special Feature – HDMI IN & OUT

HDMI (High Definition Multimedia Interface)

- Pure Digital for Perfect Vision
 HDMI OUTPUT - High Definition DIGITAL Picture

Digital-to- Digital Signal

Analog Converter Processing

 HDMI INPUT – FOR DIGITAL CONNECTION with another Product

Bluray Disc Player

DVD Player

Input Output
Game Console

17
5.Special Feature – WIRELESS READY Block Diagram

5. BLOCK DIAGRAM

18
5.Special Feature – Wireless Ready Check

7. Wireless ready module

8. Wireless ready port

SWA3000
Standby(Time Line) Power on Communication Error DATA/CLK PORT

FINT DATA/CL
K

ID SET

19
6.MAIN PCB Block

(1)M AI N TOP
OPTICAL/HDMI / USB / ASC JACK

MPEG
USB
PART HDMI
SAA7128

Micom
POWER

(2)M AI N BOTTOM

MICOM
OPTION

WM 8746

20
6.MAIN PCB Connectors

RFCN1
UCON1
RFCN3

RFCN4

UCON6
UCON3 UDIN2 UDIN1 UCON5 UCON4

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

DVD M EC HA C ONTR OL / DATA

R FC N1 24P M EC HA UC ON5 3P R emocon PC B R eceive R emocon Data
LINE (FOC US / DATA)
DVD M EC HA C ONTR OL LINE
R FC N3 6P M EC HA UC ON4 4P K ey PC B Front B utton (Power.etc..) Input
(S P/S L)
DVD M EC HA C ONTR OL LINE To Update the M icom.
R FC N4 5P M EC HA UC ON6 6P Update Port
(OPEN/C LOS E) (For Flas h Type M icom Only)
Deco R ing Front R ound Deco R ing B LUE
UC ON3 4P UC ON1 13P LED Dis play LED Power & LED C ontrol
LED PC B LED
S YS TEM
UDIN2 16P ANALOG AUDIO/VIDEO Data
C AB LE
S YS TEM
UDIN1 13P M IC OM TX/R X & POWE R
C AB LE

21
6.JACK PCB Block

SYSTEM MICOM
WIRELESS SLOT / VIDEO AUDIO JACK
JACK
UPDATE

WM8775

MICOM

DSP

22
6.JACK PCB Connectors

JCON7

JCON21

JCON1 JCON6
JCON4

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

JC ON21 3P S ub Woofer LED S UB WOOFER (S TANDB Y / POWER ) LED

JC ON4 32P AM P PC B +12V/-12V AM P S IG NAL (PWM )

JC ON1 13P TUNER TUNER S IG / C ONTR OL S IG

JC ON6 14P S M PS POWE R From S M PS

JC ON7 6P UPDATE ANALOG AUDIO/VIDEO Data

23
6.Block Diagram (Amp Block)

PS9829B

24
6.AMP PCB

PWM
MODULATOR

POWER STAGE
TAS5152

LOW PASS FILTER

FAN CIRCUIT

SPEAKER JACK PCB

CONNECTOR

25
6.AMP Modulator (PS9829B)

MICOM SUBWOOFER
CONTROL

FRONT &
LR CLOCK
DATA IN REAR “L”

CENTER

REAR &
FRONT “R”

26
6.AMP Power Stage TAS5152

1)
2)
1)OTW : During active mode, If internal temperature of the IC is over
heated (150℃) OTW is working and auto shut downed
2)TAS5152 #3 pin : Protection, Auto Shut Down (open or short )

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6.SMPS Protection

Cases of the SMPS Protection.

1> If there is over current at the AMP IC (Speaker Wire Short)
2> If temperature of the Amp Ic is over 150℃
3> There is no power input at GATE DRIVER

Protection
Location PIN NO. NOTE
OPEN SHORT

+16V(1~3) X X
+5.6V (7) X X
CN3
+3.3V (11) X X
HT-XQ120
+5V(13) X O
SMPS
PVDD(about 34V) X X
(1~4)
CN2 -12V(9) X X
+12V(11) O O

28
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-TXQ120

GND FRONT R CENTER

F/R CH 20kΩ
FRONT L

CENTER 20kΩ

SUBWOOFER -
REAR R REAR L

If Measured Resistance is very different from

above numbers, There is a Problem.
 AMP PCB Problem

29
6.Block Diagram in detail (HDMI)

C omponent
E NC O D E R C ompos ite
R GB
S AA7128AH
C O M P O S ITE

G (Y)
B(P b)
R (P r)
Analog Output
M
P S C ALE R
E FLI2301
G HD M I Tx
S IL9030
HDM I-Out

13.5M Hz

HD M I R x HDM I-In
S IL9011
S D R AM
W 983264D H

30
6.HDMI IN & OUT B lock

1) HDMI Tr ans mi t t er

MPEG Cont r ol

GENESIS HDMI Tx
MPEG Digital Output
FLI2301 SiI9030

A/V Signal
Video
Analog Output
I2C Control Micom Encoder
SAA7128

2) HDMI Recei ver

MPEG Cont r ol

GENESIS HDMI Tx Digital Output

MPEG SiI9030
FLI2301

Video
Analog Output
Micom Encoder
SAA7128

A/V Signal
HDMI Rx
SiI9011 Digital Input
I2C Control

31
6.MAIN PCB (HDMI)

HDMI TX Sil9030 HDMI RX Sil9011

HDMI-Transmitter IC HDMI-Receiver IC

VIDEO IC
FLI2301
Display-Driver IC

32
6.Checking out AMP PCB

1.PCB ASS’Y 2.HEAT SINK 3.PCB Short

C
CEH
K

Unfasten 7 Screws Separate HeatSINK CHECK Power IC

TAS5152.

33
6.AMP PCB Short Check flow

2 3

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

damage/ pat t er n damage)

2) Check connect or s

3) Shor t t es t of t he Connect or s .
34
6.SMPS Check Flow

3
1)Check FUSE & VARISTOR
2th
2)Check the AC Input Cord

3) Check cables
4) Check short or open
1th

35
7.Deck Assy. AH59-01769A

36
7. Mecha 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

37
7.Mecha Disassemble (MECHA-DECK)

2개소

3. Unfasten 2 Screws lift up Holder-Cable

4. Unfasten 4 Screws saparate Traverse-Deck

38
7.Mecha Disassemble (MECHA-DECK)

Traverse-Deck

Rubber-Deck

Holder-Cable

39
8.MICOM Initialization & Update

. Micom Reset
During STANDBY mode , push the ‘STOP’ button 5 Second. If blue 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

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9. Troubleshooting

1 . Main

41
9. Troubleshooting

2 . Output

42
9. Troubleshooting

3 . Circuit Board Layout and Functions

43
9. Troubleshooting

44
9. Troubleshooting

4 . Troubleshooting when Protection is activated

45
9. Troubleshooting

46
9. Troubleshooting

5 . Troubleshooting HDMI

47
9. Troubleshooting

6 . Troubleshooting Main Set and Sub Woofer

48
9. Troubleshooting

7 . Communication Failure
S ympton C aus e C heck Point

1 M IC OM -M IC OM
M AIN Working / 1.S E T R es et (M IC O M Initialization & Update P age)
C ommunication Line
No S ound 2.C heck Bellow P oints
open or s hort

MAIN PCB JACK PCB

Pin #12,#13 Pin #7,#8

TX/RX

TXD: #75 TXD: #75

RXD: #76 RXD: #76

49
9. Troubleshooting

S ymptom C aus e C heck Point

2 R es et Line
S ET is not working . R es et Line problem
(MIC OM#79,MPE G#252)

MPEG PART MICOM PART

UIC1 MICOM JIC1 MICOM

#79 RESET #32 RESET
MIC4 MPEG
#252 RESET

MAIN PCB JACK PCB

SYSTEM RESET

RESET Insecure : It should be 3V after power ON

50
9. Troubleshooting

8 . Troubleshooting when a Fan Error Occurs

51
10. HT-TXQ120 Block / Schematic Diagram
BLOCK Diagram

BLOCK
DIAGRAM
MAIN SET SUB WOOFER SET

MAIN MICOM MAIN RF

JACK ADC AMP

MAIN VIDEO FRONT

JACK DSP AMP SUB

MAIN MPEG MAIN HDMI

JACK MICOM

DISPLAY LED DAC Schematic

* CLICK each of the PDF document.

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