Haier HTX21S31 Service Manual Download

Page: 20 / 27

NO:M-LA-EC-2199-76812

Edition: 2002.12.30

HR76814

NTSC-M PAL-M,N

HT-2199(LA76812)

Tuesday, March 12, 2002

Title

Size

Document Number

Rev

Date:

Sheet of

H-PULSE

AC110V

K6D

B1-ADJ

CRT BOARD

60HZ

ABL

SCREEN

LIVE AREA

R442

R128

A101

UV1336B

33V

SDA

AGC

SCL

R815

12V

R602

1/6W10K

C406

100V0.068U

R459

1W1

C453

63V1000

C123

63V1000

R109

1/6W1K

A701

HS0038

R745

1/6W220

R720

1/6W10K

C701

16V47

R907
2W10K

R900

1/6W10K

C931

16V10

V932

2SC1815

C435

1.6KV7500

XS401

SCN-4Y

L432

YC0008

L909

LJ0107CHA

C554

1KV470

R105

1/6W100

C412

50V1

R832

1/6W1K

C805

R820

R805

1/6W27K

R750

1/6W22K

R803

1/6W56K

R232

1/6W10K

R402

1/6W3.3K

R454
1/6W3K

R408
1/6W2.2K

R202

1/6W1.2K

C111

63V0.01U

R754

1/6W10K

C713

50V1

R703

1/6W4.7K

C705

63V18P

110V

K9N

TJC2-1A

C913

63V56P

R912

1/6W100

R434

5W3.3K

V432

2SD1651

C502

AC250V0.1U

C444

160V4.7

C807

R809

XS801-1

AUDIO

R270

R611

1/6W3.3K

L441

Z0449

R802

1/6W100

R242

1/6W100

R458
1/6W1K

VD401

1N4148

C206
16V47

R113

1/6W100K

R759

1/6W2.2K

R738

1/6W4.7K

R734

1/6W10K

180V

R928
1/2W2.7K

C901

63V390

R502

6W1

R551

2WJ47K

C572

10V470

C139

50V0.47

110V

C208

50V0.47

C603

16V100

R727

1/6W470

R721

1/6W10K

R724

1/6W4.7K

N451

LA7840

GND

OUTPUT

VCC1

NON INPUT

INPUT

VCC2

PUMP OUT

C616

25V1000

C452

35V1000

C121

100V0.022U

C110

63V0.01U

R764

1/6W22K

C720
63V0.01U

R739

SW703

V+

R916

1/6W680

W902

JG0034

R553
1/6W4.7K

C561
160V220

R933

1/6W1.5K

R102

1/6W100K

L201

15UH

R818

C803

16V10

V601
2SA1015

R748

1/6W22K

C404

16V220

R452

1/6W1

L451
18UH

T101

HA6019

C112

63V0.01U

V102

2SC2216

R751

1/6W22K

R701

1/6W27K

C703

63V0.01U

12V

R926

1/6W680

C903

63V56

R491

1W2.2

XS402
TJC2-5A

W405

EU2Z

R821

1/6W4.7K

VD412

HZ7C1

C532

AC400V470

R814

R811

1/6W75

12V

R409

1/6W680

N702

BR24C04

VCC

GND

SCL

SDA

C403

63V0.47U

C802

16V10

C408
50V1

C458

100V0.033U

R457
1/6W39K

C433
500V3900

C276

16V10

C204

50V1

C116

63V0.01U

R757

1/6W22K

R726

1/6W270K

R706

1/6W1.5K

B5
5V

C933

16V1000

U901
XXXXXXX

C921

63V390

C934

50V0.47

R501

1/2W220K

R556

1/6W22K

VD553
1N4148

24V

C102

63V0.01U

B902

3W16OHM

C604

16V100

SW707

POWER

R567

1/6W1.2K

C729

63V0.01U

C614

C245

63V0.01U

G201

4.43

C119

63V0.01U

C101

16V100

R762

1/6W22K

R743
1/6W3.3K

R730

1/6W10K

SW705

C932

16V10

V922
2SC2688

C436

2KV470

C434

160V10

0 0

L501

JLB1606

VD503

RM11C

RP551

2AL2K

C503

1KV1000

R446

1/4W220K

R472

1W1

R101

1/6W33K

R415

1/6W3.9K

C808

XS801-2

R604

1/6W4.7K

C401

50V0.47

C454
50V1

R121

1/6W1K

R110
1/6W220

R747

1/6W22K

R708

1/6W10K

L701
39UH

R917
2W10K

V912
2SC2688

V902
2SC2688

TP-G
TEST

C504

1KV1000P

VD474

EU1

VD472
EU1

R244

1/6W2.7K

R412

1/6W8.2K

C809

2200

R813

VD801

R120

R807

1/6W220

R752

1/6W22K

R728

1/6W470

R804

1/6W82

C231

50V1

R403
1/6W330K

R455

1/6W12K

R432

R271

R204

1/6W560K

L102

15UH

R755

1/6W22K

R725

1/6W330

R704

1/6W3.9K

17V

XP901

SCN-4Y

C923

63V56P

R922

1/6W100

R441

1/2W1K

FU501

T2.5A250V

VD506
RM11C

VD505

RM11C

V554

2SB892

N701

LC86F3248A

NOTHING

POWER

GND

XTAL1

XTAL2

VDD

KEY IN

AFT IN

AGC IN

RESET

FILT

CVBS-IN

V SYNC

H SYNC

R OUT

G OUT

B OUT

BLANK

SDA0

SCL0

SDA1

SCL1

SAFTY

S-VHS

SIF

NOTHING

AV2

AV1

AV/TV

NOTHING

R474

1W1

R471

6W3.9

C474

250V22

XP601

SCN3-2Y

XS802-1
VIDEO

12V

Z101

LBN45U

38M

R612

1/6W470

C570

10V470

R613

R243

1/6W270

C457

35V1000

C441

200V0.33U

C207

100V0.01

R114

1/6W100K

R760

1/6W22K

R740
1/6W4.7K

R729

1/6W150K

SW701

CH+

12V

C939

2KV1000

XS901

GZS8-6-4F

XS501

TJC2-2A

VD504
RM11C

C565

25V1000

C551

2KV470

L442

101K

R127

1/6W330

R718

2W10K

R205

1/6W22K

R816

R272

1/6W3K

VD601

1N4148

VD701
BT205-L

R722

1/6W1.5K

B901

3W16OHM

R461A

1/2W120

R451

1/6W5.6K

C122

63V0.01U

R108

1/6W5.6K

R765

1/6W22K

R744

1/6W220

R737

R709

1/6W390K

SW704

V-

R932

15K

R935

R554
1/6W150K

C450

16V100

R104

1/6W100

R203

12V

XS802

R819

R806

1/6W68K

R735

1/6W10K

C407
50V1

C405

63V0.01U

R453
1/6W12K

VD451

EM01Z

R201

1/6W1K

R111

1/6W82

R753

1/6W22K

R702

1/6W8.2K

C704

63V15P

B7
5V

R940

1/4W33

R914

1/6W330

R902

1/6W100

B1
110V

XP402

TJC2-5Y

R552

1/2W100K

C821

50V1

RL551

G2R-1A

V802

R810

1/6W75

R808

C455

63V10P

VD921

1N4148

VD911

1N4148

C431

C402

63V0.22U

XS403
SCN-5

R801

1/6W22K

R241

1/6W100

C456

50V4.7

T431

JDT1904

R273

1/4W4.7K-J

C205
63V0.01U

C117

50V1

R758

1/6W22K

R736
1/6W4.7K

R731

1/6W10K

B5
5V

R908
1/2W2.7K

C911

63V390

C432
500V1000

U902

EW0130KB

R566

1/6W10K

C506

1KV1000P

C501

AC250V0.1U

G701

32.768K

B7
5V

C140

63V470

B7
5V

R206

1/6W47K

C611

100V0.022U

VD901
1N4148

R707

1/6W680

L431

YC0008

R400

1/4W270

C617
63V0.01U

R233

1/2W1.5K

C451

35V100

C120

100V0.022U

C103
16V2.2

R763

1/6W22K

C719

16V47

R741

R733

1/4W8.2K

SW706

R906
1/6W560

N551

AN7812

C505

1KV1000

N552

AN7805

R103

1/6W1K

VD411
EU1

C137

50V0.47

R817

XS802-2
X

R601

1/6W10K

R746

1/6W22K

R723

1/6W8.2K

R401

1/6W2.2K

C459

100V0.1U

24V

C126

63V39

R107

1/6W100

R749

1/6W22K

R700

1/6W10K

C702

63V0.01U

17V

R927
2W10K

R904

1/6W330

110V

TP-H
TEST

12V

R822

1/6W1K

V821

2SC1815

R414

1/6W10K

W807

R812

C124

100V0.01

C804

16V470

V801
2SC1815

B5
5V

R119

1/6W1K

R756

1/6W22K

C801

16V10

T471

JF0501-19129

R404

1/6W1.2K

R460

1/2W180

R456

1/6W12K

R433

1/2W1K

C203

16V4.7

C115

16V100

R766

1/6W1K

C714

16V2.2

R705

1/6W2.7K

B5
5V

XP902

SCN-5Y

R931

1/6W1K

R918
1/2W2.7K

R924

1/6W330

R413

1/6W10K

L433

ZZ0003

R562

RSG-I-FF-125V-750mA

R555

1/2W47K

C564

25V1000

C472

35V100

C411

25V47

XS601

TJC3-2A

C601
16V10

V702

2SA1015

C612

16V10

R561

1/6W10K

C613

25V1000

C244
16V47

C118
63V0.01U

C708

50V4.7

R761

1/6W22K

R742

1/6W3.3K

R732

1/6W47K

SW702

CH-

N553

AN7805

R569

1/2W 1

RT501

PTH451A7R0Q21

C533

AC400VM2200

R531

1/2CK5.6M

R502

6W1

R513

R514

V553

2SC1815

C507

450V150

R515

2W68K

C516

0.022

VD555
ES1

VD551

RU3A

VD554

EU2Z

L503

JLB1606

C515

0.022

T511

BCK-40-58

VD555

ES1

L505

YC0008

VD512

EG01C

L506

YC0008

VD510

EU2

R515

2W68K

R511

8.2

VD511

EU2

R510 10K

C513

470

V501

2SA1015

VD509
HZ15C

R509

10K

C511
1000

R508
1/6W4.7K

R507

1/6W1.5K

VD508 1N4148

C510

470

VD933

1N4148

C554

1KV470

N501

HPC922

R566
1/6W10K

C518

1KV1000

C513

2KV330

N706
UPC574

VD703

HZ4A2

V703

2SC1815

VD507
IN4148

R506 680

Z201

X4.5

V603

2SC1815

V552

2SC1815

R504

0.1

L504

YC0008

V704

2SC1815

V431

2SC2383-O

V705

2SC1815

V931

2SA1015

N601

LA4225A

INPUT

NON INPUT

GND

OUT

VCC

VD402
1N4148

V803

V602
2SC1815

VD452

1Z75

VD561

HZ6C3

C279

63V0.01U

C278

16V47

C277

100V0.01

R271

1/6W150

N101

LA76812

AUDIO OUT

FM OUT

PIF AGC

RF AGC

VIF IN1

VIF IN2

GND(IF)

VCC (VIF)

FM FIL

AFT OUT

DATA

CLOCK

ABL

R IN

G IN

B IN

BLANK IN

VCC (RGB)

R OUT

G OUT

B OUT

AKB IN

V OUT

RAMP ALC.FIL

VCC (H)

H AFC FIL

H OUT

FBP IN

VCO IREF

CLOCK OUT

VCC (CCD)

OSD CONTRAST

GND (CCD/H)

X-RAY

KILL FLT

APC2 FIL

FSC OUT

XTAL

APC1 FIL

SEL VIDEO OUT

GND (V/C/B)

EXT VIDEO IN

VCC (V/C/D)

INT VIDEO IN

BLK STRETCH FIL

VIDEO OUT

APC FIL

VCO COIL

VCO FIL

EXT AUDIO IN

SIF OUT

SIF APC FIL

SIF IN

C207

100V0.01

Circuit Diagram

Summary of Contents for HTX21S31

Page 1: ...NO M LA EC 2199 76812 Edition 2002 12 30 HTX21S31 COLOR TELEVISION Service Manual Haier Features PAL M N NTSC M Front Audio Video input V CHIP CCD 181 Channel Haier Group MODEL HTX21S31 ...

Page 2: ...s 5 6 Net dimension 11 7 Parts and Functions 12 8 Remote Controller Functions 13 9 Program Diagram 14 10 Maintenance Service and Trouble shooting 15 11 Circuit Diagram 18 12 Circuit Explanation 22 13 Adjustment 24 14 Exploded View 27 15 List of Parts 28 16 Damageable Parts List 41 17 Information of Resistors and Capacitors 41 CONTENTS ...

Page 3: ...2 2 Product Code illumination and Series Introduction H T X 21 S31 Haier Toshiba CRT size unit inch Color television appearance Product Code illumination and Series Introduction ...

Page 4: ...listening 12 Left right balancer 35 Background light 13 NICAM 36 Auto timer on 14 Multi audio modes 37 CCD 15 Tone adjuster 38 SOFTWARE V CHIP 16 MTS SAP 39 Number of built in speakers 2 17 AUDIO Auto volume leveling 40 Audio output power W 2 18 AV input Front 1 41 Total power input W 70 19 AV output 42 Voltage range V 90VAC 250V AC 20 DVD terminal 43 Power frequency Hz 60 21 S video jack 44 Time ...

Page 5: ...aged by accidental shorts of the circuitry that might be inadvertently introduced during the service operation If any fuse or Fusible Resistor in this TV receiver is blown replace it with a specified one When replacing a high wattage resistor Oxide Metal Film Resistor over 1W keep the resistor 10mm away from PCB Keep wires away from high voltage or high temperature parts Due to the high vacuum and...

Page 6: ...lease place it on a ventilated place 5 Don t open the backcover otherwise it is possible to damage the components in the TV set and harmyou 3 Don t place the TV set in the sunshine or near heatsource 6 When the TV set isn t going to be used for long time or it is in thunder and lightening please pull out the plug fromAC outlet and the antenna plug from the cover ofthe TVset Explanation on the disp...

Page 7: ...ch the other end of the insulated clip lead to the picture tube anode button using an insulating handle to avoid personal contact with high voltage 4 Do not sprays chemicals on or near this receiver or any of its assemblies 5 Unless specified otherwise in this service manual clean electrical contacts only by applying the following mixture to the contacts with a pipe cleaner cotton tipped stick or ...

Page 8: ... to install it Most replacement ES devices are packaged with leads electrically shorted together by conductive foam aluminum foil or comparable conductive material 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...

Page 9: ...und hole use the standard technique as outlined Removal Desolder and straighten each IC lead in one operation by gently prying up on the lead with the soldering iron tip as the solder melts Draw away the melted solder with an anti static suction type solder removal device or with solder braid before removing the IC Replacement Carefully insert the replacement IC in the circuit board Carefully bend...

Page 10: ...omponent and adjacent components and the circuit board to prevent excessive component temperatures Circuit Board Foil Repair Excessive heat applied to the copper foil of any printed circuit board will weaken the adhesive that bonds foil to the circuit board causing the foil to separate from or lift off the board The following guidelines and procedures should be followed whenever this condition is ...

Page 11: ...condition will not exist if the jumper wire opens 2 Trace along the copper pattern from both sides of the pattern break and locate the nearest component that is directly connected to the affected copper pattern 3 Connect insulated 20 gauge jumper wire from the lead of the nearest component on one side of the pattern break to the lead of the nearest component on the other side Carefully crimp and s...

Page 12: ...11 6 Net dimension Haier Net dimension ...

Page 13: ...９１０１ＣａｂｌｅＴＶＡｎｔｅｎｎａＨｏｏｋｕｐ TV Rear Panel 1 ANT １１ Picture Tube AV Left Speaker TV AV alteration button Menu button Volume up down button Channel up down button input Front 11 Right speaker Audio R input Power indicator Power switch Parts and Functions ...

Page 14: ...l ectB utton 6 P ersonalP reference S el ect 7 C hannel S el ectB utton 8 M enu S el ectB utton 9 A udi o S el ectB utton 10 D i rectA ccess C hannelS el ect 11 T V AV InputB utton 12 M ute B utton 13 S l eep Ti m er 14 S Y S T E M sel ecti on 1 2 3 6 5 4 7 8 9 0 M EN U RECALL RATI NG C H V O L C H SO U N D P S TD 1 2 3 4 5 6 7 8 9 TV AV D I SP S Y S Remote Controller Functions ...

Page 15: ...key to select the bar auto search then press the to make sure If you want to stop press the key 2 Deleting channel number Press channel up down buttons to select a channel to skip Press MENU to call up the PREST menu on the screen Then Press the item to select the bar Add Delete then use the key to select Add or Delete B Volume tuning Press VOLUME buttons VOL to decrease and VOL to increase the vo...

Page 16: ...STEREO VCO 0 63 No used 20 FILTER SET 0 63 No used 21 SAP VCO 0 63 No used 2 Setting item explanation OSD Function 0 LA76814 LA768 12 0 select LA76814 1 select LA76812 1 SAP IC SELECT 0 TDA9850 1 CXA2104 2 TDA9855 3 UPC1815B 2 SUB CONT Sub contrast 0 31 3 SUB COLOR Sub color 0 63 4 SUB SHARP Sub sharpness 0 31 5 SUB TINT Sub tint 0 63 6 BLK STR DEF Black level stretch 0 on 1 off 7 AFC GAIN AFC gai...

Page 17: ...input 33 POSITION L R 0 Logo display on left top of screen 1 Logo display on right top of screen 34 BLUE BACK 0 No blue background without signal 1 Blue background without signal 35 BLACK BACK 0 No background changing channel 1 Background changing channel 36 STEREO OPTION 0 No stereo 1 Stereo 37 WOOF H PHONE No used No used 38 WOOF VOL OPT No used No used 39 SENSITIVITY No used No used 40 V MUTE P...

Page 18: ... voltage of V552 or CPU power The failure of horizontal unit or N551 N552 Normal Normal Normal Abnormal Checktosee110V 180V etc voltageisnormal T esttoseeallterminal Resistanceofload Isnormal Check powerunit Check to see if rectifying tube is normal Change rectifying tube Check the Loader Abnormal Normal Abnormal Normal Abnormal Normal Abnormal Maintenance Service and Trouble shooting ...

Page 19: ...18 11 Circuit Diagram Circuit Diagram ...

Page 20: ...35V1000 C441 200V0 33U C207 100V0 01 R114 1 6W100K R760 1 6W22K R740 1 6W4 7K R729 1 6W150K SW701 CH B6 12V C939 2KV1000 XS901 GZS8 6 4F XS501 TJC2 2A VD504 RM11C C565 25V1000 C551 2KV470 L442 101K R127 1 6W330 R718 2W10K R205 1 6W22K R816 X R272 1 6W3K VD601 1N4148 VD701 BT205 L R722 1 6W1 5K B901 3W16OHM R461A 1 2W120 R451 1 6W5 6K C122 63V0 01U R108 1 6W5 6K R765 1 6W22K R744 1 6W220 R737 X R70...

Page 21: ...lifier Video and audio signal Processing RGB Output Circuits and H V Sync pulse segregation SAW Sound Power Amplifier Main Processor Infrared Receiver Remote Controller ROM Audio Video In Out Horizontal Scan Output Vertical Scan Output CRT Antenna Tuner I2 C BUS Circuit Block Diagram ...

Page 22: ...21 PCB ...

Page 23: ... 29 I2C bus control 1 5 9 Ground 0 30 I2C bus control 1 4 99 10 Scl 1 47 31 Connect to 5V via a resistor 5 03 11 sdl 2 2 32 Connect to 5V via a onnect to 5V via a resisto 5 04 12 Power supply 4 99 33 Connect to 5V via a resistor 5 03 13 Key input 0 24 34 遥控接收 0 03 14 AFT in 2 77 35 Connect to 5V via a resistor 5 02 15 AGC in 1 7 36 Connect to 5V via a resistor 5 01 16 n c 1 7 37 mute 0 11 17 Reset...

Page 24: ...12 Bus clock 4 85 39 APC1 filter 3 2 13 ABL 4 76 40 Selected video output 2 43 14 R input 3 92 41 Video chroma deflection 0 15 G input 0 14 42 Ext video input 2 55 16 B input 0 15 43 Power 5 17 Fast blanking input 0 08 44 Int video input 2 77 18 RGB Vcc 7 94 45 Black stretch filter 2 6 19 R output 2 21 46 Video input 2 12 20 G output 2 36 47 APC filter 3 5 21 B output 2 28 48 VCO coil 4 3 22 H syn...

Page 25: ...weep generator to IF test top in PCB b Adjust T101 and make digital multi meter display 3 6V 0 05V PIF TP top can only connect to multi meter Alignment and check a Connect main PCB with alignment tool input factory adjustment signal and turn TV on Adjust screen control on FBT and make screen brightness relevant receive 525 line monoscope adjust focus control on FBT and make focus relevant b Pre ad...

Page 26: ...oise press FACTORY button and enter service mode adjust RF AGC value and make the noise just disappear press FACTORY button and exit service mode White balance adjustment Turn TV on receive white field signal and make the probe of white balance adjustment instrument touch with top and bottom of screen fully Check if values of R G B are standard if not press FACTORY button make B W BALANCE menu dis...

Page 27: ...TORY button to enter service mode and adjust vertical size vertical linearity vertical center horizontal center make them standard Alignment parameter table Press FACTORY button on service remote controller and enter service mode 1 Adjustment mode and2 Setting mode Use CH or CH button up down pages to select items that you need adjust use VOL or VOL button Adjustment ...

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Haier HTX21S31, Service Manual

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