Durabrand DBTV1901 User manual

SERVICE MANUAL

COLOR TELEVISION RECEIVER

ORIGINAL

MFR’S VERSION A

DBTV1901

Design and specifications are subject to change without notice.

SERVICE MANUAL

REVISION 1

MFR’S VERSION C

Please file this revision with the original version.

COLOR TELEVISION RECEIVER

DBTV1901

C

A

MFR’S VERSION

PCB010 PCB110

TMX494A

TMX494B

TCX352A

TCX352B

Change of PCB

PART NO. DESCRIPTION PART NO. DESCRIPTION

R416 R002T2010J RC 1 OHM 1/2W

C422 P613T1154J CMPL 0.15 UF 100V TF

PCB010 A3J907A01A

MAIN PCB ASS'Y (VERSION A)

TMX494A

A3J907A010

MAIN PCB ASS'Y (VERSION C)

TMX494B

PCB110 A3J907A11A

CRT PCB ASS'Y (VERSION A)

TCX352A A3J907A110

CRT PCB ASS'Y (VERSION C)

TCX352B

MAIN PCB's and CRT PCB's are not interchangeable.

ADD R416

C422

MFR'S VERSION CMFR'S VERSION A

REF. NO.

ELECTRICAL REPLACEMENT PARTS LIST

PRINTED CIRCUIT BOARDS

SOLDER SIDE

(VERSION C)

MAIN/CRT (INSERTED PARTS)

IC401

ADD R416

C422

DEFLECTION/CRT SCHEMATIC DIAGRAM (MAIN PCB)

(VERSION C)

M3J9-07A

W163007

SPEC.NO.

O/R NO.

ABC D E F GH

2

1

3

4

5

6

7

8

2

1

3

4

5

6

7

8

S802Y

THE DC VOLTAGE AT EACH PART WAS MEASURED

WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST

WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.

NOTE:

C130

0.01 B

C004 0.1 F

C140_1

0.001 Y

C141

0.1 F

C136

0.1 F

C139

0.1 F

C121 220P B

C113

12P CH

C114

12P CH

C119

0.1 F

C124

0.01 B

C138

560P W

C120

0.001 CH

C101

0.001 CH

C126 0.01 B

C127 470P B

C002

4706.3V YK

C003

4.750V KA

C115

0.150V KA

C122 150V KA

C123

1025V KA

R607

100

R139 100

R117

15K

R111

22K

R133 1K

R130 1K

R127

2.7K

R126

2.7K

R101

560

R123

4.7K

R122

4.7K

R121

4.7K

R120

4.7K

R124

4.7K

R104

820

R103

820

R102

820

R001

18K 1/2W

R002

18K 1/2W

R112

2.2K

R113

2.2K

R141

270

R142

270

R128

560

R115

47K

R132

47K

R129

1M

R134

470

R118

47K

R108

100

R107

100

R143

47

R105 4.7K

R106 4.7K

R110 1K 1/4W

R125

47K

OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE

NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME

DANS LA NOMENCLATURE DES PIECES

N’UTILISER QUE CELLS DECRITES

DANGEREUSES AN POINT DE VUE SECURITE

ETANTLES PIECES REPAREES PAR UNATTENTION:

DESCRIBED IN PARTS LIST ONLY

CRITICAL FOR SAFETY,USE ONES

ARESINCE THESE PARTS MARKED BYCAUTION:

D607 MTZJ5.6B

D001 MTZJ30B

D604 MTZJ5.6B

W814

W806

W840

W845

W835

L101

3.3uH

SW101

SKHVBED010

CH UP

SW102

SKHVBED010

CH DOWN

SW103

SKHVBED010

VOL UP

SW104

SKHVBED010

VOL DOWN

SW105

SKHVBED010

POWER

TU001 ENV56DB6G3

1

10

11

12 13

14 15

2

3

4

5

6

7

8

9

C118

3306.3V YK

C128_1

3306.3V YK

IC199

S-24C02BDP-1A

MEMORY IC

1234

5678

GND

B+

Vout

OS101

PIC-37143SY

1

2

3

IC101 OEC7073A

MICON IC

110111213141516171819 22021

22 23 24 25 26 27 28 29

3

30 31 32 33 34 35 36 37 38 39

4

40 41 42

56789

DEFLECTION SIGNAL

B.SIGNAL

G.SIGNAL

R.SIGNAL

TUNER VIDEO SIGNAL

TM101

RC-DW010

AGC

GND

IF

TUNER+5V

+B

X-RAY

DEGAUSS

AUDIO_MUTE

H_CTL

PROTECT_H

I2C_OFF

AFT

SYNC

HD

VD

OSD_B

OSD_G

OSD_R

OSD_BLK

SDA

SCL

CLOCK_CONT

POWER

FSC

RESET

AT+5V

AT+5VBACKUP

Y_VIDEO

POWER

1

2

43

TO SOUND/AV

(MAIN PCB)

G-2G-1

FROM/TO CHROMA

FROM POWER

FROM DEFLECTION/CRT

FROM/TO CHROMA

ACCESSORY

TMA525

0.8

5.2

3.2

5.2

5

5.2

4.8

5

4.98

4.7

5.2

2.8

5.2

3.6

0.9

2.26

1.05

5.2

4.98

0

4.98

0

4.95

2.27

5

4.99

2.69

0

5.2

NC

IF

BTL

BPL

V.S

SDA

SCL

ADRES

AGC

30.0

4.6

6.2

1.3

NC

0

4.9

4.8

MICON/TUNER SCHEMATIC DIAGRAM

0

4.8

4.9

VCC

0

Xout

VSS

CNVSS

Xin

OSC2

OSC1

P.FAIL

REMOCON

X-RAY

BLUE B

GREEN G

RED R

BLANK

RESET

CVIN

V.HOLD

HLF

SCL1

SDA1

FSC IN

POWER

CLOCK CONT

V.SYNC

H.SYNC

I2C_OFF

STANDBY_H

SYNC

AV1

AV2

X-RAY_TEST

KEY2

KEY1

AFT

FILT

H_CTL

PROTECT_H

NC

AUDIO MUTE

EXT MUTE

ON TIMER

DEGAUSS

NC

4.8

0000

4.904.8

VSS

E2

E1

E0 VCC

MODE

SCL

SDA

PCB010

ABC D E F GH

2

1

3

4

5

6

7

8

2

1

3

4

5

6

7

8

S802X

X602

3.579545MHz

IS NON POLAR ONE.

THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP

THE RESISTOR MARKED F IS FUSE RESISTOR.NOTE:

D601

1SS133

D605

11E1-EIC

Q609

KTC3198

H.CTL

Q603

KTC3203_Y

REG

Q605

KTC3203_Y

REG

Q604

KTC3203_Y

REG

Q606

KTC3203_Y

REG

Q610

KTC3198

H.CTL

C627

150V NA

AUDIO SIGNAL

IC601

M61250FP

CHROMA IC

1 101112

13 14 15 16

17 18 19

2

20 21 22 23 24 25 26 27 28 29

3

30 31 32

33343536373839

4

404142434445464748

49

5

50515253545556575859

6

6061626364

789

CF603

SFSRA4M50CF00-A0

CF604

TPSRA4M50C00-A0

CP601

00_8283_0611_00_000

1

2

3

4

5

6

R629

333W

GNDOUTOUTIN

CF601_1

TSF5229P3

1234

THE DC VOLTAGE AT EACH PART WAS MEASURED

WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST

WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.

NOTE:

C637

0.01 B

C626 0.01 B

C602 0.01 B

C634

100P CH

C607

0.01 B

C616

15P CH

C623

0.0033 Y

C655

0.0068 Y

C606

100P CH

C639

0.01 B

C618

22P CH

C622

0.022 B

C621

0.01 B

C640

0.01 B

C614

336.3V

KA

C601

1006.3V YK

C603

150V KA

C628

0.2250V KA

C613_2

163V MKT

C619_1

2.250V YK

C625

150V KA

C645

4716V YK

C635 4716V YK

C632

0.150V KA

C624

4716V YK

C647

150V KA

C638

1050V KA

C630

4716V YK

C612

100010V YK

C629

150V KA

C642

150V KA

C605

0.4750V KA

C604 150V KA

R148

100K

R606

10K

R602

1K

R621

1K

R624

47

R616 10M

R614 2.2K

R619 2.2K

R625 2.2K

R630 100

R627 100

R617 1K

R631 100

R601

2.2K

R635

100

R639

1.5K

R628

100

R623 120 1/4W

R626

22K

R632

220

R646

47K

R638

22K

R642

1K

R648

1M

R612

1K

R633

8.2K

R615

470

R622

68

R605

4.7K

R641 27K 1/4W

R146

220

R609

220

OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE

NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME

DANS LA NOMENCLATURE DES PIECES

N’UTILISER QUE CELLS DECRITES

DANGEREUSES AN POINT DE VUE SECURITE

ETANTLES PIECES REPAREES PAR UNATTENTION:

DESCRIBED IN PARTS LIST ONLY

CRITICAL FOR SAFETY,USE ONES

ARESINCE THESE PARTS MARKED BYCAUTION:

D606 MTZJ6.8B

D612

MTZJ12B

D610 MTZJ12B

D602

MTZJ8.2B

D611 MTZJ12B

W833

W823

W818

W820

W817

W834

L607

15uH

DEFLECTION SIGNAL

B.SIGNAL

G.SIGNAL

R.SIGNAL

TUNER VIDEO SIGNAL

UNREG+12V

VIDEO_IN

AUDIO_OUT

RESET

AUDIO_IN

GND

CLOCK_CONT

RESET

Y_VIDEO

AT+5V

VD

AT+5VBACKUP H_CTL

TUNER+5V

OSD_BLK

PROTECT_H

AGC

SYNC

V_OUT

ABCL

OSD_G

OSD_R

OSD_B

V_FEEDBACK

IF GND

H_OUT

HD

AFT

H_SYNC

B.OUT

G.OUT

R.OUT

CLAMP

GND

HD

POWER

OSD_B

OSD_BLK

OSD_G

VD

OSD_R

SYNC

I2C_OFF

SDA

SCL

FSC

CLOCK_CONT

5

7

10

9

8

FROM MICON/TUNER

FROM POWER

(MAIN PCB)

G-4G-3

2.21

5.69

TMA525

6

0

7.9

6

5

5.6

3.183.1

2.5

1.8

4.72.808.72.55

NC

7.96008.63

1.70

00

3.6

4.92

3.2

4.8

4.7

0

4.7

4.8

2.4

2.8

3.6

4.8

4.9

3.63.63.6086

6

003.45

2.7

4.24.84.82.634.62

1.51

2.86

2.27

4.5

2.19

0

3.2

3.15

3.08

2.5

2.38

5.65

NC

TEST POINT

FROM SOUND/AV

NC

6

11

12

13

FROM/TO DEFLECTION/CRT

CHROMA SCHEMATIC DIAGRAM

4.9 7.2

5.5

7.2

5.5

8.8

5.5

4.9

R OUT

G OUT

VIF Vcc

V OUT

V RAMP FEEDBACK

AFC FILTER

DEF GND

FBP IN

H OUT

STRAT UP Vcc

INTELLIGENT MONI

INV FBP OUT

V PULSE OUT

B IN

R IN

G IN

FAST BLK

CLOCK CONT

SDA

SCL

POWER ON CONT

MCU RESET

Y SW OUT

VIDEO/CHROMA GND

CHROMA APC FILTER

EXT C in

VIDEO CHROMA Vcc

TV/Y IN

33 ACL/ABCL

34 X’TAL

VREG Vcc

fsc OUT 1

fsc OUT 2

Hi Vcc

NC

32 AT5.7V REG OUT

QIF OUT

AUDIO OUT

AUDIO BYPASS

EXT AUDIO IN

FM DIRECT OUT

VIF VCO F/B

VIF GND

VIF VIDEO OUT

RF AGC OUT

VIF APC FILTER

VIF IN (1)

IF AGC FILTER1

IF AGC FILTER2

64 VIF IN (2)

1 V RAMP CAP

2 AFT OUT

47 8.7V REG OUT

48 LIMITER IN

49 P.Con5.7V REG

16 B OUT

17 H VCO F/B

NC

7.9

8.5

11.3

NC

FROM/TO MICON/TUNER

FROM/TO SOUND/AV

PCB010SCL

SDA

IIC_OFF

INT.MONI

VIDEO

GND

ABC D E F GH

2

1

3

4

5

6

7

8

2

1

3

4

5

6

7

8

S801X

CP502

A1561WV2-2P

1

2

HS501

763WSAA013

R501

3.3 5W

21

L503

8R200029

DEGAUSS COIL

FH502

EYF-52BC

FH501

EYF-52BC

F501

51MS040LCC

233004-MB000

Q504

LTV-817M-VB

FEED BACK

1

2

34

B502

W5RH3.5

X5X1.0

B501

W5RH3.5

X5X1.0

B503

W5RH3.5X5X1.0

L501_1

1R0A562F20

12

3

45

TH501_2

PTDAA1BF3R0Q100

R518

5.6K +-1%

R514

0.22 1W

T502 8129092S

10

11

12

13

14

15

16

17

18

2

3

4

5

6

7

8

4A 125V

TYPE 4A 125V (F501).

D’INCEIE N’UTILISER QUE DES FUSIBLE DE MEME

POUR UNE PROTECTION CONTINUE LES RISQUESATTENTION:

FUSE.

REPLACE ONLY WITH THE SAME TYPE 4A 125V (F501)

FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,CAUTION:

S501AS501B

S

D

G

Q501

STP5NC50FP

FET

BLACK

WHITE

BLADE

WIDE

CD501_2

0R414903

AC120V_60Hz

IS NON POLAR ONE.

THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP

THE RESISTOR MARKED F IS FUSE RESISTOR.NOTE:

D510

RU2AM-EIC

D505

SB290S

D501

1N4005-EIC

D504

1N4005-EIC

D502

1N4005-EIC

D503

1N4005-EIC

D514

1SS133

D522

1SS133

D508

1SS133

D512

1SS133

D513

SB290S

Q507

KTC3198-AT

(Y,GR)

FEED BACK

SWITCHING

Q502

KTC3198

BUFFER

R517

5.6 2W

R542

0.47 1W

R508

220 1W

THE DC VOLTAGE AT EACH PART WAS MEASURED

WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST

WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.

NOTE:

C505

0.1275V PHE840

C517

470P2KV RR

C514

680P2KV RR

C513_1

0.082 MMT

C518

470P500V B

C502

0.001500V B

C503

0.001500V B

C506

0.0047250V KX

C509

0.047 M

C501

0.0068 M

C511

150V KA

C526

330200V UP

R529

47K

R527

12

R520

56K 1/4W

R509

100 1/4W

R511

1.2M

1/4W

R500

3.3M 1/2W

+-10%

R510

1.2M

1/4W

R519

1.2K

R515

120K 1/2W

R513

2.2K

R512

680

R506_1

1K 1/4W

OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE

NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME

DANS LA NOMENCLATURE DES PIECES

N’UTILISER QUE CELLS DECRITES

DANGEREUSES AN POINT DE VUE SECURITE

ETANTLES PIECES REPAREES PAR UNATTENTION:

DESCRIBED IN PARTS LIST ONLY

CRITICAL FOR SAFETY,USE ONES

ARESINCE THESE PARTS MARKED BYCAUTION:

D506

MTZJ18B

D509

MTZJ18B

D528

MTZJ5.6B

W828

W844

W829

W824

W821

W837

C521

100160V MHE

C519

47016V YK

C515

100016V YK

DEGAUSS

GND

SOUND+B

SOUND_GND

+B

UNREG+12V

GND

UNREG+12V

TO MICON/TUNER

TO SOUND/AV

POWER SCHEMATIC DIAGRAM

G-6G-5

TMA525

NC

(MAIN PCB)

TO DEFLECTION/CRT

TO CHROMA

9.5

5.5

6.0

9.50.1

10.511.5

4.8

0.1

0

4.8

144.0

10.0

NC

0

1.7

NC

0

132.3

11.3

NC

144.0

10.3

6.6

10.3

PCB010

0.1

ABC DEF GH

2

1

3

4

5

6

7

8

2

1

3

4

5

6

7

8

S801Y

CP401

A1561WV2-A5P

1

2

3

4

5

IC401 AN5522V-OUT IC

1234567

T401

ETH09K14BZ

1

2

34

6

B

G

R

11

6

8

10

9

175

V801

A48LGS30X19N45

F

J801

ISMS01S

1

3

4

5

6

7

8

9

CD801

SM1098-009-1A

Q401

2SD2627LS-CBC11

H.OUTPUT

VIDEO

8

E8

E25

E12

GND

TER

HEA

AFC

B+

GND

ABL

GND

COL

HV

F

S

FB401 3220052F

1

10

11

2

3

4

5

6

7

8

9

CP802A

9253_010_000_000

1

10

2

3

4

5

6

7

8

9

CP802B

9253_010_000_000

1

10

2

3

4

5

6

7

8

9

CP801_1

A2361WV2-2P

1

2

HS401

763WSAA013

HS402

763WSAA013

R418_1

27K

R408

10K +-1%

R409

27K +-1%

R401

27K+-1%

R429_1

3.9 2W

D407

1SS133

D802 1SS133

D406_1

1SS133

D403

11E1-EIC

D410

AU02A-EIC

D405

AU02A-EIC

D408

11E1-EIC

D411

AU02A-EIC

D803 1SS133

D801 1SS133

Q803_1

KTC4217(O,Y)

BLUE OUT

Q802_1

KTC4217(O,Y)

GREEN OUT

Q801_1

KTC4217(O,Y)

RED OUT

Q402

2SC1627_Y

H.DRIVE

R448_1

390 2W

R805

12K

2W

R807

12K

2W

R803

12K

2W

THE DC VOLTAGE AT EACH PART WAS MEASURED

WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST

WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.

NOTE:

C437

0.39250V

PMS

C406

39P500V SL

C402

0.012200V PP

C443_1

0.00561.25KV

MPP

C808 470P B

C809 470P B

C810 470P B

C440

0.0012500V

B

C819

0.0012KV B

C407

56P CH

C422

0.15

100V

MKT

C414

10035V

YK

C418

470

25V

YK

C448

22

200V

MHE

C403

47035V

YK

C435

0.1100V

MHE

C434

22100V YK

C446

2250V YK

R808

22 1/2W

R402

12 1/2W

R420

4.7K

R419

560

R815

330

R813

330

R421

100K 1/4W

R445

120K

1/4W

R806

2.7K

1/4W

R410

330 1/2W

R415

1.8K 1/2W

R416

1 1/2W

R816

330

R413

2.2K

1/2W

R403

22K1/4W

R427

100 1/4W

R422

1.8 1/2W

R417

12K 1/4W

R446

470

1/2W

R423

100 1/4W

R424

6.8K

R802_1

2.7K

1/4W

R804_1

2.7K 1/4W

R814 4.7K

R811 4.7K

R809 4.7K

OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE

NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME

DANS LA NOMENCLATURE DES PIECES

N’UTILISER QUE CELLS DECRITES

DANGEREUSES AN POINT DE VUE SECURITE

ETANTLES PIECES REPAREES PAR UNATTENTION:

DESCRIBED IN PARTS LIST ONLY

CRITICAL FOR SAFETY,USE ONES

ARESINCE THESE PARTS MARKED BYCAUTION:

D404

MTZJ6.2B

D619

MTZJ5.1B

W843

W826

W832

W831

W897

W896

W809

W812

L402 18uH

C417

1050V YK

DEFLECTION SIGNAL

B.SIGNAL

G.SIGNAL

R.SIGNAL

GND GND

CLAMP

CLAMP CLAMP

G.OUT

G.OUT G.OUT

R.OUT

R.OUT R.OUT

B.OUT

B.OUT B.OUT

HEATER HEATER

GND GND

180V 180V

X-RAY

+B

GND

V_FEEDBACK

V_OUT

ABCL

H_OUT

H_SYNC

GND

+B

UNREG+12V

CP806

SCREEN

17

15

FROMPOWER

G-8G-7

FROM CHROMA

FROM/TO CHROMA

UP

PUMP

PROTECTION

THERMAL

AMP

99.6

6.4

0

101.6

96.4

0

THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP

NOTE:THE RESISTOR MARKED F IS FUSE RESISTOR.

IS NON POLAR ONE.

TO DY

TMA525

2.73.2 3.23.2

NC

2.7

120.5

2.7

126.0128.0

FOCUS

NC

FOCUS

PCB110

2

1

130.0

0

27.0

0.3

3.5 2.0 12.0 25.0 3.5

18

19

20 21 22

0

025.0

132.5

48.0

7.0

4.3

25.0

132.5

NC

(MAIN PCB)

DEFLECTION/CRT SCHEMATIC DIAGRAM

NC

GND GND

CLAMP CLAMP

G.OUT G.OUT

R.OUT R.OUT

B.OUT B.OUT

HEATER HEATER

GND GND

180V 180V

14

PCB010

130.0

16

NC

TCA384A

TO MICON/TUNER

ABC D E F GH

2

1

3

4

5

6

7

8

2

1

3

4

5

6

7

8

SPEAKER

SP1001

S08F21

8 OHM

CD101A

CH012002

1

CD101B

CH012003

1

H

E

J703

AV1-09D-4

1

2

H

E

J702

AV1-09D-3

1

2

AUDIO SIGNAL

THE DC VOLTAGE AT EACH PART WAS MEASURED

WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST

WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.

NOTE:

C1004_1

0.0015 CH

C1001

0.150V KA

C1005

1025V KA

R701

68 1/4W

R702

47K

R703

820

R704

10

R1003

68K

R1001

47K

R1005

270K

R1004

100K

R1008

68K

OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE

NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME

DANS LA NOMENCLATURE DES PIECES

N’UTILISER QUE CELLS DECRITES

DANGEREUSES AN POINT DE VUE SECURITE

ETANTLES PIECES REPAREES PAR UNATTENTION:

DESCRIBED IN PARTS LIST ONLY

CRITICAL FOR SAFETY,USE ONES

ARESINCE THESE PARTS MARKED BYCAUTION:

W807

W803

W805

C1002_1

47010V YK

C1003

150V KA

IC1001 AN7511

SOUND AMP IC

1234

5678

TUNER VIDEO SIGNAL

AUDIO_IN

VIDEO_IN

GND

SOUND_GND

SOUND+B

GND

AUDIO_MUTE

POWER

AUDIO_OUT

G-10G-9

TO CHROMA

VIDEO 2

AUDIO 2

26

25

(FRONT)

V_IN

A_IN

FROM MICON/TUNER

FROM TV POWER

1

2

-+

0

08.2 3.5 3.4

3.95.1 0.3

24

FROM CHROMA

23

TMA525

PCB010

SOUND/AV SCHEMATIC DIAGRAM

(MAIN PCB)

MICON/TUNER

61

0.5V 20µs/div

2

5

WAVEFORMS

0.5V 20µs/div

200mV 5ms/div

4

0.5V 2ms/div

200mV 20µs/div

7

9

200mV 20µs/div

CHROMA

0.5V 5ms/div

10

11

1V 20µs/div

12

1V 20µs/div

1V 20µs/div13

8

20V 20µs/div3

200mV 20µs/div

DEFLECTION/CRT

14

0.5V 5ms/div

15

20V 20µs/div

H-1

NOTE: The following waveforms were measured at the point of the corresponding

balloon number in the schematic diagram.

16 2V 20µs/div 21 50V 20µs/div

200V 20µs/div

17

22

50V 20µs/div

SOUND/AV

0.5V 1ms/div

23

10V 5ms/div18

10V 5ms/div

19

1V 1ms/div24

50V 20µs/div

20

NOTE: The following waveforms were measured at the point of the corresponding

balloon number in the schematic diagram.

H-2

25 500mV 1ms/div

WAVEFORMS

26 500mV 20us/div

MECHANICAL EXPLODED VIEW

I-1

107

108

202

103

SP1001

105

104

203

110

111

101

201

L503

106

J801

PCB110

(CRT PCB)

V801

102

109

FB401

204

PCB010

(MAIN PCB)

205

204

TU001

MECHANICAL REPLACEMENT PARTS LIST

REF. NO. PART NO. DESCRIPTION

101 A3L211C720 CABINET,FRONT ASSY

102 723000B325 FILM,DECORATION

103 701WPJB715 CABINET,FRONT

104 713WPAA047 GUIDE ,REMOCON

105 735WPAA417 BUTTON,FRAME

106 741WUA0019 SPRING,EARTH

107 702WPAA183 CABINET,BACK

108 722552A019 SHEET,RATING

109 7220001119 SHEET,CSA WARNING

110 7220001107 SHEET,HWC

111 7230006818 SHEET,CAUTION

201 8121F50B84 SCREW,TAPPING(BO) FAI20 FLAT 5x28

202 8117540A64 SCREW,TAPPING(B0) TRUSS 4x16

203 8110630A04 SCREW,TAP TITE(P) BRAZIER 3x10

204 8109I30A04 SCREW,TAP TITE(B) WH7 3x10

205 8109630802 SCREW,TAP TITE(B) BRAZIER 3x8

--- 791WHAA017 LAMIFILM BAG

--- 792WHAA040 PACKAGE,TOP

--- 792WHAA041 PACKAGE,BOTTOM

--- 793WCDB237 GIFT BOX

--- JB5K0200 POLYBAG,INSTRUCTION

--- J3L10502 WARRANTY SHEET

--- J3L21101 INSTRUCTION BOOK

--- A3L211C975 INSTRUCTION BOOK KIT

J1-1

ELECTRICAL REPLACEMENT PARTS LIST

REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION

RESISTORS DIODES

R148 R00106104J RC 100K OHM 1/6W or D28T11E2N2 DIODE SILICON 11E2N-TA1B2

R001T6104J RC 100K OHM 1/6W D606 D97U06R81B DIODE,ZENER MTZJ6.8B T-77

! R401 R4X5T6273F R,METAL 27K OHM 1/6W D607 D97U05R61B DIODE,ZENER MTZJ5.6B T-77

! R409 R4X5T6273F R,METAL 27K OHM 1/6W D610 D97U01201B DIODE,ZENER MTZJ12B T-77

! R429 R6558A3R9J R,FUSE 3.9 OHM 2W D611 D97U01201B DIODE,ZENER MTZJ12B T-77

R448 R3X18A391J R,METAL OXIDE 390 OHM 2W D612 D97U01201B DIODE,ZENER MTZJ12B T-77

! R500 R0G3K2335K RC 3.3M OHM 1/2W D619 D97U05R11B DIODE,ZENER MTZJ5.1B T-77

! R501 R5Y2CD3R3J R,CEMENT 3.3 OHM 5W D801 D1VT001330 DIODE,SILICON 1SS133T-77

R508 R3X181221J R,METAL OXIDE 220 OHM 1W D802 D1VT001330 DIODE,SILICON 1SS133T-77

R514 R63581R22J R,FUSE 0.22 OHM 1W D803 D1VT001330 DIODE,SILICON 1SS133T-77

! R515 R002T2124J RC 120K OHM 1/2W

ICS

! R517 R3X28A5R6J R,METAL OXIDE 5.6 OHM 2W IC101 I56F07073A IC OEC7073A

! R518 R4X5T6562F R,METAL 5.6K OHM 1/6W IC199 A3L211C015 IC S-24C02BDP-1A

! R519 R001T6122J RC 1.2K OHM 1/6W ! IC401 I01TD55220 IC AN5522

! R542 R3X181R47J R,METAL OXIDE 0.47 OHM 1W IC601 I06FC61250 IC M61250FP

! R629 R3X28B330J R,METAL OXIDE 33 OHM 3W IC1001 I01DP75110 IC AN7511

! R641 R002T4273J RC 27K OHM 1/4W

TRANSISTORS

! R803 R3X18A123J R,METAL OXIDE 12K OHM 2W ! Q401 TD30026270 TRANSISTOR SILICON 2SD2627LS-CBC11

! R805 R3X18A123J R,METAL OXIDE 12K OHM 2W ! Q402 TC5T01627Y TRANSISTOR SILICON 2SC1627_Y(TPE2)

! R807 R3X18A123J R,METAL OXIDE 12K OHM 2W Q501 TJXG5NC500 FET STP5NC50FP

CAPACITORS

! Q502 TCATC31980 TRANSISTOR,SILICON KTC3198-AT(Y,GR)

C402 P3N1F2123J CPP 0.012 UF 200V ! Q504 0002E00610 PHOTO COUPLER LTV-817M-VB

! C403 E02LT4471M CE 470 UF 35V Q507 TCATC31980 TRANSISTOR,SILICON KTC3198-AT(Y,GR)

! C414 E02LT4101M CE 100 UF 35V Q603 TCAT032034 TRANSISTOR, SILICON KTC3203_Y-AT

! C418 E02LT3471M CE 470 UF 25V Q604 TCAT032034 TRANSISTOR, SILICON KTC3203_Y-AT

C437 P4J7F3394J CMPP 0.39 UF 250V PMS Q605 TCAT032034 TRANSISTOR, SILICON KTC3203_Y-AT

! C443 P4N8FJ562H CMPP 0.0056UF 1.25KV Q606 TCAT032034 TRANSISTOR, SILICON KTC3203_Y-AT

! C446 E02LT5220M CE 22 UF 50V Q609 TCATC31980 TRANSISTOR,SILICON KTC3198-AT(Y,GR)

! C448 E5EZ0C220M CE 22 UF 200V Q610 TCATC31980 TRANSISTOR,SILICON KTC3198-AT(Y,GR)

! C502 C0JTB0513K CC 0.001 UF 500V B Q801 TCA0042170 TRANSISTOR SILICON KTC4217(O,Y)

! C503 C0JTB0513K CC 0.001 UF 500V B Q802 TCA0042170 TRANSISTOR SILICON KTC4217(O,Y)

! C505 P2472B104M CMP 0.1 UF 275V PHE840 Q803 TCA0042170 TRANSISTOR SILICON KTC4217(O,Y)

! C506 CD39E0MQ3M CC 0.0047UF 250V

COILS &TRANSFORMERS

! C511 E50HU5010M CE 1 UF 50V L101 021LA63R3K COIL 3.3 UH

C513 P23200823J CMPL 0.082 UF 50V MMT or L402 02186G180M COIL 18 UH

P232W0823J CMPL 0.082 UF 50V MMTS ! L501 029T000104 COIL,LINE FILTER 1R0A562F20

C514 C0PLRR7U2K CC 680 PF 2KV RR ! L503 028R200029 COIL,DEGAUSS 8R200029

! C515 E02LT2102M CE 1000 UF 16V L607 021LA6150K COIL 15 UH

C517 C0PLRR7Q2K CC 470 PF 2KV RR or T401 045009003J TRANS,HORIZONTAL DRIVE ETH09K14BZ

C01BBP7Q2K CC 470 PF 2KV BP or ! T502 048129092S TRANSFORMER,SWITCHING 8129092S

C01TBP7Q2K CC 470 PF 2KV BP

JACKS

! C519 E02LT2471M CE 470 UF 16V J702 060Q401077 RCA JACK AV1-09D-3

! C521 E5EZFB101M CE 100 UF 160V J703 060Q401076 RCA JACK AV1-09D-4

! C526 E51CGC331M CE 330 UF 200V ! J801 066F120018 SOCKET,CATHODE RAY TUBE ISMS01S

C634 CQG0CH412J CC 100 PF 50V CH or

SWITCHES

CQGTCH412J CC 100 PF 50V CH SW101 0504201T31 SWITCH,TACT SKHVBED010

C819 C0JBB0713K CC 0.001 UF 2KV B SW102 0504201T31 SWITCH,TACT SKHVBED010

DIODES

SW103 0504201T31 SWITCH,TACT SKHVBED010

D001 D97U03001B DIODE,ZENER MTZJ30B T-77 SW104 0504201T31 SWITCH,TACT SKHVBED010

D403 D2WT011E10 DIODE SILICON 11E1-EIC or SW105 0504201T31 SWITCH,TACT SKHVBED010

D28T11E2N2 DIODE SILICON 11E2N-TA1B2

P.C.BOARD ASSEMBLIES

D404 D97U06R21B DIODE,ZENER MTZJ6.2B T-77 PCB010 A3L211C010 PCB ASS'Y TMA525A

! D405 D2WTAU02A0 DIODE SILICON AU02A-EIC PCB110 A3L208C110 PCB ASS'Y TCA384A

D406 D1VT001330 DIODE,SILICON 1SS133T-77

MISCELLANEOUS

D407 D1VT001330 DIODE,SILICON 1SS133T-77 B501 024HT03553 CORE,BEADS W5RH3.5X5X1.0

D408 D2WT011E10 DIODE SILICON 11E1-EIC or B502 024HT03553 CORE,BEADS W5RH3.5X5X1.0

D28T11E2N2 DIODE SILICON 11E2N-TA1B2 B503 024HT03553 CORE,BEADS W5RH3.5X5X1.0

! D410 D2WTAU02A0 DIODE SILICON AU02A-EIC ! CD501 120R414903 CORD AC BUSH 0R414903

! D411 D2WTAU02A0 DIODE SILICON AU02A-EIC CD801 06CU82039A CORD CONNECTOR SM1098-009-1A

! D501 D2WXN40050 DIODE SILICON 1N4005-EIC CF601 1029045R7G FILTER,SAW TSF5229P3

! D502 D2WXN40050 DIODE SILICON 1N4005-EIC CF603 1012T4R520 FILTER,CERAMIC SFSRA4M50CF00-A0

! D503 D2WXN40050 DIODE SILICON 1N4005-EIC CF604 1012T4R519 FILTER,CERAMIC TRAP TPSRA4M50C00-A0

! D504 D2WXN40050 DIODE SILICON 1N4005-EIC CP401 069S450089 CONNECTOR PCB SIDE A1561WV2-A5P

! D505 D2WXB290S0 DIODE SILICON SB290S CP502 069S420110 CONNECTOR PCB SIDE A1561WV2-2P

D506 D97U01801B DIODE,ZENER MTZJ18B T-77 CP601 069E260659 CONNECTOR PCB SIDE 00_8283_0611_00_000 or

D508 D1VT001330 DIODE,SILICON 1SS133T-77 0694260139 CONNECTOR PCB SIDE 173979-6 or

! D509 D97U01801B DIODE,ZENER MTZJ18B T-77 0694260669 CONNECTOR PCB SIDE 175489-6

! D510 D2WXRU2AM0 DIODE SILICON RU2AM-EIC CP801 069S320010 CONNECTOR PCB SIDE A2361WV2-2P

D512 D1VT001330 DIODE,SILICON 1SS133T-77 CD101A 06CH012002 CORD CONNECTOR CH012002

! D513 D2WXB290S0 DIODE SILICON SB290S CD101B 06CH012003 CORD CONNECTOR CH012003

D514 D1VT001330 DIODE,SILICON 1SS133T-77 CP802A 067N010039 WIRE HOLDER 9253_010_000_000 or

! D522 D1VT001330 DIODE,SILICON 1SS133T-77 067U010049 WIRE HOLDER B2013H02-10P

D528 D97U05R61B DIODE,ZENER MTZJ5.6B T-77 CP802B 067N010039 WIRE HOLDER 9253_010_000_000 or

D601 D1VT001330 DIODE,SILICON 1SS133T-77 067U010049 WIRE HOLDER B2013H02-10P

D602 D97U08R21B DIODE,ZENER MTZJ8.2B T-77 EL002 124120301A EYE LET XRY20X30BD

D604 D97U05R61B DIODE,ZENER MTZJ5.6B T-77 ! F501 081PC04004 FUSE 51MS040LCC

D605 D2WT011E10 DIODE SILICON 11E1-EIC or

!

FB401 043220052F TRANSFORMER,FLYBACK 3220052F

J2-1

ELECTRICAL REPLACEMENT PARTS LIST

REF. NO. PART NO. DESCRIPTION

MISCELLANEOUS

FH501 06710T0006 HOLDER,FUSE EYF-52BC

FH502 06710T0006 HOLDER,FUSE EYF-52BC

OS101 077Q037003 REMOTE RECEIVER PIC-37143SY

S101 WHL6032038 FLAT CABLE AWG26 10C BLACK 320MM

! SP1001 070Y132018 SPEAKER S08F21

TH501 DF20A3R0Q0 DEGAUSS ELEMENT PTDAA1BF3R0Q100

TM101 076N0DW010 TRANSMITTER RC-DW010

! TU001 0145100059 TUNER,VHF-UHF ENV56DB6G3

! V801 098Y200480 COLOR PICTURE TUBE W/DYA48LGS30X19N45

X602 100CT3R505 CRYSTAL HC-49/C

RESISTOR

RC...............…..

CARBON RESISTOR

CAPACITORS

CC................…

CERAMIC CAPACITOR

CE................……

ALUMI ELECTROLYTIC CAPACITOR

CP................……

POLYESTER CAPACITOR

CPP...............…

POLYPROPYLENE CAPACITOR

CPL...............…

PLASTIC CAPACITOR

CMP.................

METAL POLYESTER CAPACITOR

CMPL............…

METAL PLASTIC CAPACITOR

CMPP..........….

METAL POLYPROPYLENE CAPACITOR

J2-2

M3L2-11C

O/R NO.

SPEC.NO.

W223003

SERVICE MANUAL

DBTV1901 Series B

Design and specifications are subject to change without notice.

COLOR TELEVISION RECEIVER

ORIGINAL

MFR'S VERSION B

The parts in this equipment have the specific

characters of incombustibility and withstand

voltage for safety. Therefore, the part which is

replaced should be used the part which has

the same character.

Especially as to the important parts for safety

which is indicated in the circuit diagram or the

table of parts as a mark, the designated

parts must be used.

SERVICING NOTICES ON CHECKING

6. AVOID AN X-RAY1. KEEP THE NOTICES

As for the places which need special attentions,

they are indicated with the labels or seals on the

cabinet, chassis and parts. Make sure to keep the

indications and notices in the operation manual.

3. USE THE DESIGNATED PARTS

5. TAKE CARE TO DEAL WITH THE

CATHODE-RAY TUBE

In the condition that an explosion-proof cathode-

ray tube is set in this equipment, safety is

secured against implosion. However, when

removing it or serving from backward, it is

dangerous to give a shock. Take enough care to

deal with it.

Safety is secured against an X-ray by consider-

ing about the cathode-ray tube and the high

voltage peripheral circuit, etc.

Therefore, when repairing the high voltage pe-

ripheral circuit, use the designated parts and

make sure not modify the circuit.

Repairing except indicates causes rising of high

voltage, and it emits an X-ray from the cathode-

ray tube.

Please include the following informations when you order parts. (Particularly the VERSION LETTER.)

1. MODEL NUMBER and VERSION LETTER

The MODEL NUMBER can be found on the back of each product and the VERSION LETTER can be

found at the end of the SERIAL NUMBER.

2. PART NO. and DESCRIPTION

You can find it in your SERVICE MANUAL.

HOW TO ORDER PARTS

PERFORM A SAFETY CHECK AFTER

SERVICING

7.

Confirm that the screws, parts and wiring which

were removed in order to service are put in the

original positions, or whether there are the

portions which are deteriorated around the

serviced places serviced or not. Check the

insulation between the antenna terminal or

external metal and the AC cord plug blades.

And be sure the safety of that.

(INSULATION CHECK PROCEDURE)

1.

2.

3.

4.

Unplug the plug from the AC outlet.

Remove the antenna terminal on TV and turn

on the TV.

Insulation resistance between the cord plug

terminals and the eternal exposure metal

[Note 2] should be more than 1M ohm by

using the 500V insulation resistance meter

[Note 1].

If the insulation resistance is less than 1M

ohm, the inspection repair should be

required.

[Note 1]

If you have not the 500V insulation

resistance meter, use a Tester.

[Note 2]

External exposure metal: Antenna terminal

2. AVOID AN ELECTRIC SHOCK

There is a high voltage part inside. Avoid an

electric shock while the electric current is

flowing.

4. PUT PARTS AND WIRES IN THE

ORIGINAL POSITION AFTER

ASSEMBLING OR WIRING

There are parts which use the insulation

material such as a tube or tape for safety, or

which are assembled in the condition that

these do not contact with the printed board.

The inside wiring is designed not to get closer

to the pyrogenic parts and high voltage parts.

Therefore, put these parts in the original

positions.

A1-1

!

Inferior silicon grease can damage IC's and transistors.

When replacing an IC's or transistors, use only specified silicon grease (YG6260M).

Remove all old silicon before applying new silicon.

IMPORTANT

CONTENTS

SERVICING NOTICES ON CHECKING .........................................................................................................

HOW TO ORDER PARTS ...............................................................................................................................

IMPORTANT ....................................................................................................................................................

CONTENTS......................................................................................................................................................

GENERAL SPECIFICATIONS ........................................................................................................................

DISASSEMBLY INSTRUCTIONS

1. REMOVAL OF ANODE CAP ..............................................................................................................

2. REMOVAL AND INSTALLATION OF FLAT PACKAGE IC...............................................................

SERVICE MODE LIST ....................................................................................................................................

CONFIRMATION OF HOURS USED .............................................................................................................

WHEN REPLACING EEPROM (MEMORY) IC .............................................................................................

ELECTRICAL ADJUSTMENTS......................................................................................................................

BLOCK DIAGRAM ..........................................................................................................................................

PRINTED CIRCUIT BOARDS

MAIN/CRT..............................................................................................................................................

SCHEMATIC DIAGRAMS

MICON/TUNER .....................................................................................................................................

CHROMA ...............................................................................................................................................

POWER ..................................................................................................................................................

DEFLECTION/CRT................................................................................................................................

SOUND/AV ............................................................................................................................................

WAVEFORMS .................................................................................................................................................

MECHANICAL EXPLODED VIEW .................................................................................................................

MECHANICAL REPLACEMENT PARTS LIST .............................................................................................

ELECTRICAL REPLACEMENT PARTS LIST ...............................................................................................

A2-1

A1-1

A2-1

A3-1~A3-4

B1-1

B2-1, B2-2

C-1

D-1~D-5

E-1, E-2