Durabrand DBTV1901 Schematic

DBTV1901

SERVICE MANUAL

COLOR TELEVISION RECEIVER

ORIGINAL

MFR’S VERSION A

Design and specifications are subject to change without notice.

DBTV1901

SER VICE MANUAL

COLOR TELEVISION RECEIVER

REVISION 1

MFR’S VERSION C

MFR’S VERSION

A
C

PCB010 PCB110
TMX494A
TMX494B

TCX352A
TCX352B

Please file this revision with the original version.

Change of PCB

ELECTRICAL REPLACEMENT PARTS LIST

MFR'S VERSION CMFR'S VERSION A

REF. NO.

R416 R002T2010J RC 1 OHM 1/2W
C422 P613T1154J CMPL 0.15 UF 100V TF

PCB010 A3J907A01A

PCB110 A3J907A11A

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

PART NO. DESCRIPTION PART NO. DESCRIPTION

MAIN PCB ASS'Y (VERSION A)
TMX494A

CRT PCB ASS'Y (VERSION A)
TCX352A A3J907A110

A3J907A010

MAIN PCB ASS'Y (VERSION C)
TMX494B

CRT PCB ASS'Y (VERSION C)
TCX352B

PRINTED CIRCUIT BOARDS

MAIN/CRT (INSERTED PARTS)

SOLDER SIDE

(VERSION C)

ADD R416

C422

DEFLECTION/CRT SCHEMATIC DIAGRAM (MAIN PCB)

(VERSION C)

IC401

ADD R416

C422

SPEC.NO.

O/R NO.

M3J9-07A

W163007

ABC D E F GH

MICON/TUNER SCHEMATIC DIAGRAM

8

7

OS101

PIC-37143SY

GND

B+

Vout
123

0

4.8

4.9

1025V KA

C123

6

R143

47

5

4

3

2

ACCESSORY

TM101

RC-DW010

R115

47K

W840

R118

47K

R112

2.2K
R113

2.2K

R132

47K

C113

12P CH

C114

12P CH

POWER

W814

R127

R101

560

SW105

W845

2.7K

1

W835

VOL DOWN

SKHVBED010

5.2

0

0

0

NC

2.69

4.99

5

2.27

4.95

0

NC

0

NC

0

NC

0

NC

0

NC

4.98

0

L101

3.3uH
0

0

0

4.98
NC

0

R126

2.7K

SW104

VOL UP

SKHVBED010

IC101 OEC7073A

110111213141516171819 22021

AUDIO MUTE

EXT MUTE

3

STANDBY_H

4

56789

AFT

KEY1

KEY2

X-RAY

REMOCON

ON TIMER

X-RAY_TEST

AV2

AV1

DEGAUSS

P.FAIL

OSC2

OSC1

CNVSS

Xin

Xout

VSS

SW103

SKHVBED010

MICON IC

R128

560

SW102

CH DOWN

H_CTL

PROTECT_H

I2C_OFF

SYNC

H.SYNC

V.SYNC

BLUE B

GREEN G

RED R

BLANK

CLOCK CONT

SDA1

SCL1

POWER

FSC IN

RESET

CVIN

V.HOLD

HLF

FILT

VCC

CH UP

SKHVBED010

3.2

0.8

5.2

40 41 42

5.2

5

5.2

4.8

4.8

4.8

5

4.98

4.7

4.7

30 31 32 33 34 35 36 37 38 39

5.2

2.8

5.2

3.6

0.9

2.26

1.05

22 23 24 25 26 27 28 29

5.2

C118

3306.3V YK

SW101

SKHVBED010

22K

R111

R139 100

C120

0.001 CH

C126 0.01 B

R607

R125

R110 1K 1/4W

R130 1K

C127 470P B

3306.3V YK

C128_1

100

R117

15K

47K

D607 MTZJ5.6B

0.01 B

C138

560P W

C121 220P B

C119

0.1 F

(MAIN PCB)

TU001 ENV56DB6G3

BTL

IF

9

11

10

14 15

0

0

NC

30.0

C004 0.1 F

C140_1

0.001 Y

43

R123

4.7K
R122

4.7K
R121

4.7K
R120

4.7K

C130

2

R134

470

R129

C122 150V KA

R133 1K

BPL

8

7

0

NC

4.9

D001 MTZJ30B

D604 MTZJ5.6B

C124

0.01 B

1M

C002

8

1.3

ADRES
3

NC

270

S802Y

AGC

2

1

12 13

NC

4.6

6.2
C003

4.750V KA

C136

0.1 F

820

R103

R102

4.8
5678

SDA

VSS

820

R105 4.7K

R106 4.7K

0.001 CH

SCL

E2

0000

R104

0.1 F

C115

C101

MODE

E1

4.904.8

C139

820

FROM/TO CHROMA

AGC

GND

IF

TUNER+5V

R002

18K 1/2W

C141

0.1 F

4.7K

R124

0.150V KA

E0 VCC

1234

IC199

MEMORY IC

S-24C02BDP-1A

R108

100

R107

100

W806

R001

18K 1/2W

FROM DEFLECTION/CRT

+B

X-RAY

FROM POWER

DEGAUSS

TO SOUND/AV

AUDIO_MUTE

FROM/TO CHROMA

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

TO SOUND/AV

POWER

PCB010

TMA525

7

6

5

4

3

2

V.S

SDA

SCL
4

5

6

NC

4.8

4.8

4706.3V YK

270

R141

R142

1

NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME

OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE

THE DC VOLTAGE AT EACH PART WAS MEASURED

NOTE:

WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST

WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.

CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY

ARESINCE THESE PARTS MARKED BYCAUTION:

DANGEREUSES AN POINT DE VUE SECURITE
N’UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES

ETANTLES PIECES REPAREES PAR UNATTENTION:

DEFLECTION SIGNAL
TUNER VIDEO SIGNAL
R.SIGNAL
G.SIGNAL
B.SIGNAL

1

ABC D E F GH

G-2G-1

ABC D E F GH

CHROMA SCHEMATIC DIAGRAM

8

FROM POWER

UNREG+12V

REG

Q604

7

KTC3203_Y

4.9 7.2

7

6

1K

R612

FROM/TO SOUND/AV

AUDIO_OUT

AUDIO_IN

S802X

5

GND

FROM/TO MICON/TUNER

RESET

Y_VIDEO

AT+5V

AT+5VBACKUP H_CTL

4

TUNER+5V

AGC

IF GND

AFT

W833

5

C655

0.0068 Y

CF604

TPSRA4M50C00-A0

C605

R609

220

0.4750V KA

CF601_1

TSF5229P3

GNDOUTOUTIN

1234

C642

150V KA

R615

470

C618

L607

R622

C606

22P CH

15uH

68

100P CH

R624

47

R616 10M

R606

10K

C640

R621

3

GND

HD

POWER

2

OSD_B

OSD_BLK

OSD_G

OSD_R

SYNC

I2C_OFF

SDA

SCL
FSC

CLOCK_CONT

VD

R629

5.5

100

R628

C634

100P CH

C604 150V KA

C623

C632

C602 0.01 B

C626 0.01 B

0.01 B

1K

333W

REG
Q605

KTC3203_Y

7.2

C630

0.150V KA

C628

0.2250V KA

5.5

4716V YK

0.0033 Y

W817

KTC3203_Y

11.3

8.5

SFSRA4M50CF00-A0

5.65

2.21

2.38

2.5

3.08

3.15

3.2

2.19

4.5

2.27

2.86

2.86

1.51

1.51

C621

0.01 B

6

REG

Q606

7.9

R639

1.5K

2.250V YK

C619_1

CF603

NC

1.70

49

50515253545556575859

0

0

6061626364

C613_2

163V MKT

C601

QIF OUT

AUDIO OUT

AUDIO BYPASS

EXT AUDIO IN

VIF GND

VIF GND

VIF VIDEO OUT

RF AGC OUT

VIF APC FILTER

IF AGC FILTER2

IF AGC FILTER1

VIF IN (1)

NC

NC

NC

FM DIRECT OUT

VIF VCO F/B

VIF Vcc

1 101112

1006.3V YK
C637

VIF Vcc

2

3

W823

W820

0.01 B

R632

D602

D601

C629

7.96008.63

Hi Vcc

fsc OUT 2

47 8.7V REG OUT
48 LIMITER IN
49 P.Con5.7V REG

64 VIF IN (2)

1 V RAMP CAP

2 AFT OUT

V OUT

V RAMP FEEDBACK

5

6

4.24.84.82.634.62

2.7

R641 27K 1/4W

220

MTZJ8.2B

4716V YK

C624

1SS133

C627

150V KA

TV/Y IN

VREG Vcc

CHROMA IC

IC601

M61250FP

AFC FILTER

DEF GND

789

150V KA

C603

R605

4.7K

C645

150V NA

4.72.808.72.55

VIDEO CHROMA Vcc

DEF GND

003.45

C607

4716V YK

1.8

6

R626

0.01 B

(MAIN PCB)

C625

150V KA

C647

D606 MTZJ6.8B

2.5

EXT C in

VIDEO CHROMA Vcc

CHROMA APC FILTER

34 X’TAL
33 ACL/ABCL

32 AT5.7V REG OUT

17 H VCO F/B
16 B OUT

H OUT

STRAT UP Vcc

FBP IN

22K

R601

2.2K

1K

R602

C612

D610 MTZJ12B

100010V YK

W818

150V KA

C622

0.022 B

R633

8.2K

C616

00

3.183.1

Y SW OUT

MCU RESET

VIDEO/CHROMA GND

VIDEO/CHROMA GND

fsc OUT 1

POWER ON CONT

CLOCK CONT

FAST BLK

V PULSE OUT

INV FBP OUT

INTELLIGENT MONI

NC

R OUT

NC

11

D611 MTZJ12B

R614 2.2K

G OUT

3.63.63.6086

12

R619 2.2K

13 14 15 16

4.9

C635 4716V YK

15P CH

X602

3.579545MHz

5.6

333435363738394404142434445464748

SCL

SDA

R IN

G IN

B IN

13

R625 2.2K

KTC3203_Y

R646

3.6

30 31 32

4.7

20 21 22 23 24 25 26 27 28 29

4.8

4.8

3.6
17 18 19

D612

R635

47K

4.92

3.2

4.8

0

4.7

4.8

2.4

2.8

2.8

2.8

4.9

REG

Q603

HD

5.5

8.8

100

MTZJ12B

R623 120 1/4W

R638

22K

R642

1K

SYNC

C639

0.01 B

8

R627 100

R630 100

R631 100

R617 1K

10

1050V KA

C638

D605

11E1-EIC

RESET

CLOCK_CONT

H.CTL

Q610

KTC3198

VD

R648

W834

1M

H.CTL

Q609

7.9
KTC3198

6

0

9

OSD_B

OSD_BLK

OSD_G

OSD_R

5

R146

5.69

6

220

R148

C614

336.3V
KA

100K

TEST POINT

00_8283_0611_00_000

VIDEO

INT.MONI

IIC_OFF

SDA

GND

FROM SOUND/AV

VIDEO_IN

FROM MICON/TUNER

PROTECT_H

FROM/TO DEFLECTION/CRT

V_OUT

ABCL

V_FEEDBACK

H_OUT

H_SYNC

B.OUT

G.OUT

R.OUT

CLAMP

CP601

6

5

4

3

2

1

R.SIGNAL

G.SIGNAL

B.SIGNAL

DEFLECTION SIGNAL

AUDIO SIGNAL

TUNER VIDEO SIGNAL

PCB010SCL
TMA525

8

7

6

5

4

3

2

THE DC VOLTAGE AT EACH PART WAS MEASURED

1

THE RESISTOR MARKED F IS FUSE RESISTOR.NOTE:
THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP
IS NON POLAR ONE.

NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME

OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE

NOTE:

WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST

WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.

DANGEREUSES AN POINT DE VUE SECURITE
N’UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES

ETANTLES PIECES REPAREES PAR UNATTENTION:

CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY

ARESINCE THESE PARTS MARKED BYCAUTION:

1

ABC D E F GH

G-4G-3

ABC D E F GH

POWER SCHEMATIC DIAGRAM

8

(MAIN PCB)

8

7

6

5

4

3

2

DEGAUSS COIL

AC120V_60Hz

0R414903

WIDE

BLADE

L503

8R200029

CD501_2

BLACK

WHITE

21

CP502

A1561WV2-2P

1

2

S501AS501B

FH501

EYF-52BC

4A 125V

W837

TH501_2

F501

51MS040LCC

233004-MB000

4A 125V

FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,CAUTION:
REPLACE ONLY WITH THE SAME TYPE 4A 125V (F501)
FUSE.
POUR UNE PROTECTION CONTINUE LES RISQUESATTENTION:
D’INCEIE N’UTILISER QUE DES FUSIBLE DE MEME
TYPE 4A 125V (F501).

W828

R529

47K

R500

+-10%

3.3M 1/2W

W821

L501_1

1R0A562F20

PTDAA1BF3R0Q100

FH502

EYF-52BC

C506

0.0047250V KX

C505

0.1275V PHE840

45

NC

TO MICON/TUNER

DEGAUSS

TO SOUND/AV

GND

SOUND+B

SOUND_GND

TO DEFLECTION/CRT

+B

UNREG+12V

GND

TO CHROMA

UNREG+12V

PCB010
TMA525

7

6

5

4

3

2

47016V YK

D510

C517

470P2KV RR

C515

C513_1

6.0

MTZJ5.6B

0.082 MMT

5.6 2W

100016V YK

R519

1.2K

R517

R515

120K 1/2W

R527

R518

C521

S801X

12

5.6K +-1%

D514

100160V MHE

D522

1SS133

W824

1SS133

D505

SB290S

C518

470P500V B

C526

C511

R514

0.22 1W

330200V UP

D512

150V KA

D506

R510

R511

D509

1.2M

1.2M

MTZJ18B

1SS133

MTZJ18B

1/4W

1/4W

1.7
8

NC

7

144.0
6

NC

5

10.3
4

6.6
3

10.3
2

FEED BACK

Q504

LTV-817M-VB

T502 8129092S

10.511.5
1

34

10.0

10

NC

11

0

12

W829

132.3

13

0

14

0

15

11.3

16

NC

17

NC

18

FEED BACK
SWITCHING

KTC3198-AT

680

R513

2.2K

R512

2

9.50.1

R501

3.3 5W

12

3

C514

680P2KV RR

B501

B502

144.0
D

0.1
S

B503

W5RH3.5X5X1.0

R542

763WSAA013

D501

1N4005-EIC

D504

1N4005-EIC

X5X1.0

W5RH3.5

X5X1.0

W5RH3.5

FET
Q501

STP5NC50FP
G

4.8

BUFFER

Q502

KTC3198

0.47 1W
HS501

C502

0.001500V B

R508

220 1W

W844

4.8

0.1

0

R506_1

C501

1K 1/4W

0.0068 M

D502

D503

C509

0.047 M

1N4005-EIC

1N4005-EIC

R520

56K 1/4W

C503

D508

R509

0.001500V B

1SS133

100 1/4W

Q507

(Y,GR)

C519

RU2AM-EIC

D513

SB290S

9.5

5.5

D528

1

THE RESISTOR MARKED F IS FUSE RESISTOR.NOTE:
THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP
IS NON POLAR ONE.

NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME

OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE

THE DC VOLTAGE AT EACH PART WAS MEASURED

NOTE:

WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST

WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.

CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY

ARESINCE THESE PARTS MARKED BYCAUTION:

DANGEREUSES AN POINT DE VUE SECURITE
N’UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES

ETANTLES PIECES REPAREES PAR UNATTENTION:

1

ABC D E F GH

G-6G-5

FROM CHROMA

8

7

6

TO MICON/TUNER

5

CLAMP

G.OUT

R.OUT

B.OUT

X-RAY

ABC DEF GH

CP802A

DEFLECTION/CRT SCHEMATIC DIAGRAM

IC401 AN5522V-OUT IC

THERMAL

PUMP

UP

1234567

3.5 2.0 12.0 25.0 3.5

C414

14

R423

100 1/4W

D619

+B

MTZJ5.1B

R408

R424

6.8K

10K +-1%

C434

22100V YK

763WSAA013

R401

27K+-1%

HS401

PROTECTION

AMP

025.0

YK

10035V

18

D403

11E1-EIC

D411

R409

R417

AU02A-EIC

27K +-1%

R418_1

27K

12K 1/4W

R419

R420

4.7K

560

C417

C418

1050V YK

(MAIN PCB)

19

MKT

0.15

C422

YK

470

25V

R422

100V

1.8 1/2W

R416

1 1/2W

R410

1.8K 1/2W

R413

330 1/2W

R415

1/2W

2.2K

R429_1

3.9 2W

9253_010_000_000

GND GND

CLAMP CLAMP

G.OUT G.OUT

R.OUT R.OUT

B.OUT B.OUT

NC

HEATER HEATER

GND GND

NC

180V 180V

1

GND GND

2

CLAMP CLAMP

3

G.OUT G.OUT

4

R.OUT R.OUT

5

B.OUT B.OUT

6

HEATER HEATER

7

GND GND

8

9

10

180V 180V

TO DY

5

4

3

NC

2

1

CD801

SM1098-009-1A

V801

A48LGS30X19N45

9

10

R

8

G

6

B

11

CP401

A1561WV2-A5P

CP802B
9253_010_000_000

1

2

3

4

5

6

7

8

9

10

175

CP801_1

A2361WV2-2P

1

2

8

NC

NC

D801 1SS133

W843

1

2

KTC4217(O,Y)

R809 4.7K

RED OUT

Q801_1

2.73.2 3.23.2

R813

C808 470P B

126.0128.0

330

GREEN OUT

Q802_1

KTC4217(O,Y)

2.7

D802 1SS133

R811 4.7K

BLUE OUT

Q803_1

KTC4217(O,Y)

2.7

120.5

330

R815

C809 470P B

D803 1SS133

R814 4.7K

330

R816

C810 470P B

7

6

20 21 22

R803

2W

1/4W

R802_1

12K

2.7K

R805

2W

R804_1

12K

2.7K 1/4W

R807

2W

1/4W

R806

12K

2.7K

5

FROM/TO CHROMA

V_FEEDBACK

4

3

2

GND

V_OUT

ABCL

H_OUT

H_SYNC

FROMPOWER

GND

+B

UNREG+12V

D406_1

1SS133

H.DRIVE

Q402

2SC1627_Y

T401

1/2W

470

B

0.0012500V

ETH09K14BZ

NC

2250V YK

C446

34

2

1

6

16

R427

S801Y

W832

W826

100 1/4W

R402

12 1/2W

130.0

0

0

HS402

763WSAA013

D407

17

H.OUTPUT

2SD2627LS-CBC11

L402 18uH

C402

0.012200V PP

D404

1SS133

15

R446

27.0

0.3
0

C440

Q401

W812

W831

MTZJ6.2B

C407

W896

W809

W897

C437

C443_1

R403

22K1/4W

C406

56P CH

PMS

0.39250V

MPP

0.00561.25KV

39P500V SL

130.0

132.5

132.5

48.0

25.0

7.0

0

NC

10

1

6

2

9

8

4

3

COL

VIDEO

B+

AFC
HEA
TER

GND

E12

E25

FB401 3220052F

R808

22 1/2W

4

HV

F

S

0

GND

11

4.3

ABL

7

0

GND

8

E8

NC

5

FOCUS

FOCUS

CP806
SCREEN

C819

0.0012KV B

96.4

9

101.6

8

7

6

0

5

0

F

0

1

4

6.4

0

3

J801

99.6

ISMS01S

3

2

AU02A-EIC

D410

AU02A-EIC

PCB110

TCA384A

D405

R448_1

390 2W

22

1

PCB010

TMA525

C403

YK

47035V

C448

200V

MHE

R445

120K

1/4W

NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME

OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE

C435

0.1100V
MHE

R421

100K 1/4W

D408

11E1-EIC

DANGEREUSES AN POINT DE VUE SECURITE
N’UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES

CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY

ETANTLES PIECES REPAREES PAR UNATTENTION:

ARESINCE THESE PARTS MARKED BYCAUTION:

THE DC VOLTAGE AT EACH PART WAS MEASURED

NOTE:

WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST

WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.

NOTE:THE RESISTOR MARKED F IS FUSE RESISTOR.

THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP
IS NON POLAR ONE.

R.SIGNAL

G.SIGNAL

B.SIGNAL

DEFLECTION SIGNAL

1

ABC DEF GH

G-8G-7

ABC D E F GH

SOUND/AV SCHEMATIC DIAGRAM

8

(MAIN PCB)

8

7

J703

(FRONT)

TO CHROMA

AUDIO_IN

6

VIDEO_IN

GND

AUDIO 2

VIDEO 2

25

26

R701

68 1/4W

R702

R703

820

R704

10

47K

AV1-09D-4

H

2

H

2

J702

AV1-09D-3

E

1

A_IN

E

V_IN

1

W807

5

24

FROM TV POWER

SOUND_GND

SOUND+B

4

3

GND

FROM MICON/TUNER

AUDIO_MUTE

POWER

R1001

47K

C1002_1

47010V YK

5678

R1003

68K

08.2 3.5 3.4

-+

SOUND AMP IC

IC1001 AN7511

1234

0

3.95.1 0.3

1

CD101A

CH012002

1

CD101B

CH012003

1

2

SPEAKER

SP1001
S08F21

8 OHM

7

6

5

4

3

R1005

270K

C1003

C1004_1

0.0015 CH

R1008

68K

23

FROM CHROMA

AUDIO_OUT

W803

W805

R1004

C1001

100K

0.150V KA

150V KA

2

THE DC VOLTAGE AT EACH PART WAS MEASURED

NOTE:

1

WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST

WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.

NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME

OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE

CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY

ARESINCE THESE PARTS MARKED BYCAUTION:

1025V KA

C1005

DANGEREUSES AN POINT DE VUE SECURITE
N’UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES

ETANTLES PIECES REPAREES PAR UNATTENTION:

TUNER VIDEO SIGNAL
AUDIO SIGNAL

PCB010
TMA525

2

1

ABC D E F GH

G-10G-9

MICON/TUNER

200mV 5ms/div

2

0.5V 20µs/div

WAVEFORMS

61

0.5V 20µs/div

200mV 20µs/div

7

1V 20µs/div

11

1V 20µs/div

12

200mV 20µs/div

200mV 5ms/div

4

CHROMA

5

0.5V 2ms/div

20V 20µs/div3

8

200mV 20µs/div

9

0.5V 5ms/div

10

1V 20µs/div13

DEFLECTION/CRT

0.5V 5ms/div

14

20V 20µs/div

15

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

balloon number in the schematic diagram.

H-1

WAVEFORMS

16 2V 20µs/div 21 50V 20µs/div

50V 20µs/div

200V 20µs/div

17

22

SOUND/AV

23

10V 5ms/div18

0.5V 1ms/div

26 500mV 20us/div

19

10V 5ms/div

50V 20µs/div

20

1V 1ms/div24

25 500mV 1ms/div

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

balloon number in the schematic diagram.

H-2

MECHANICAL EXPLODED VIEW

106

201

201

L503

201

J801

PCB110
(CRT PCB)

109

202

FB401

202

107

108

202

202

202

V801

102

104

203

201

105

204

205

TU001

204

PCB010
(MAIN PCB)

111

103

I-1

101

110

SP1001

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

ICS

TRANSISTORS

CAPACITORS

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

COILS &TRANSFORMERS

JACKS

SWITCHES

DIODES

SW103 0504201T31 SWITCH,TACT SKHVBED010

P.C.BOARD ASSEMBLIES

MISCELLANEOUS

D605 D2WT011E10 DIODE SILICON 11E1-EIC or!FB401 043220052F TRANSFORMER,FLYBACK 3220052F

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

! 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
! 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
! 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

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
! 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

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

! 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

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

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

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

C01BBP7Q2K CC 470 PF 2KV BP or ! T502 048129092S TRANSFORMER,SWITCHING 8129092S
C01TBP7Q2K CC 470 PF 2KV BP

CQGTCH412J CC 100 PF 50V CH SW101 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

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

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

! 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

D28T11E2N2 DIODE SILICON 11E2N-TA1B2

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

J2-1

ELECTRICAL REPLACEMENT PARTS LIST

REF. NO. PART NO. DESCRIPTION

MISCELLANEOUS

X602 100CT3R505 CRYSTAL HC-49/C

RC...............…..

CC................…

CE................……

CP................……

CPP...............…

CPL...............…

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

CMPL............…

CMPP..........….

METAL POLYPROPYLENE CAPACITOR

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/DY A48LGS30X19N45

RESISTOR

CAPACITORS

CARBON RESISTOR

CERAMIC CAPACITOR
ALUMI ELECTROLYTIC CAPACITOR
POLYESTER CAPACITOR
POLYPROPYLENE CAPACITOR
PLASTIC CAPACITOR
METAL POLYESTER CAPACITOR
METAL PLASTIC CAPACITOR

J2-2

SPEC.NO.

O/R NO.

M3L2-11C

W223003

DBTV1901 Series B

SERVICE MANUAL

COLOR TELEVISION RECEIVER

ORIGINAL

MFR'S VERSION B

Design and specifications are subject to change without notice.

SERVICING NOTICES ON CHECKING

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.

2. AVOID AN ELECTRIC SHOCK

There is a high voltage part inside. Avoid an
electric shock while the electric current is
flowing.

3. USE THE DESIGNATED PARTS

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.

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.

5. TAKE CARE TO DEAL WITH THE
CATHODE-RAY TUBE

In the condition that an explosion-proof cathode­ray 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.

!

6. AVOID AN X-RAY1. KEEP THE NOTICES

Safety is secured against an X-ray by consider­ing about the cathode-ray tube and the high
voltage peripheral circuit, etc.
Therefore, when repairing the high voltage pe­ripheral 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 cathode­ray tube.

PERFORM A SAFETY CHECK AFTER

7.
SERVICING

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.

Unplug the plug from the AC outlet.

2.

Remove the antenna terminal on TV and turn
on the TV.

3.

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].

4.

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

HOW TO ORDER PARTS

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.

IMPORTANT

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.

A1-1