PHILIPS 14PT2121-78R, 14PT4131-78R, 20PT3331-78R, 20PT4331-78R Service Manual

Colour Television / Fornecido por Eletrônica J.E. (www.eletronicaje.com.br) Chassis

ç

Volta ao Menu

14PT3131/78R
14PT4131/78R
20PT3331/78R
20PT4331/78R

CONTEÚDO PÁGINA

L03.1L

AA

CL 36532044_000.eps

020603

1 Especifi cações Técnicas, Conexões e Vista
Geral do Chassis 2
2 Precauções de Segurança e Manutenção
Instruções, Avisos e Notas 4
3 Instruções de Uso 6
4 Instruções Mecânicas 16
5 Modos de Serviço, Códigos de Erro e
Descoberta de Falhas 17
6 Diagrama em Blocos, Pontos de teste, I2C e
Diagrama em Blocos 21
Vista Geral da Tensão de Alimentação 22
Vista Geral dos Pontos de Teste 23
7 Esquemas e Painéis Diagr. Painel
Fonte de Alimentação (Diagrama A1) 24 33-39
Defl exão (Diagrama A2) 25 33-39
Tuner I/F (Diagrama A3) 26 33-39
Processamento de Vídeo (Diagrama A4) 27 33-39
Proces. de Áudio (Stereo + SAP) (Diagrama A5) 28 33-39
Amp. Áudio + Proc. Som Mono(Diagrama A6) 29 33-39
E/S Frontal + Controle + Headphone (Diagrama A7) 30 33-39
E/S Traseiro (Diagrama A8) 31 33-39
Tabela de Diversidade 32 33-39
Alimentação DVD Opcional (Diagrama A9) 32 33-39
Painel CRT (Diagrama B1) 40 41-42
Painel Controle Superior (Diagrama E) 42 42
8 Ajustes 43
9 Descrição do Circuito 51
Lista de Abreviações 54
Data Sheets dos CIs 56
10 Listas de Material
Lista de Material 14PT3131/78R 57
Lista de Material 20PT3331/78R 61
Lista de Material 14PT4131/78R 65
Lista de Material 20PT4331/78R 69

Impresso no Brasil SujeitoaModificaçõesTodososDireitosReservados480672717272

07/2003

6. Diagrama em Blocos, I2C, Tensões de Alimentação, e Vista Geral dos Pontos de Teste

Diagrama em Blocos

21L03.1L AA

FRONT I/O

A7

MONO

V

L

MONITOR

YUV

TUNER IF

A3

SDA

A4

SCL

A4

COMPAIR

CONNECTOR

STEREO

V

L

R

V

L

OUTPUT

R

V

L

INPUT

R

+5V

VT_SUPPLY

3003

3004

1003

1

2

3

1184 1121

1

1185 1124

6

4

7101

L-OUT

R-OUT

G-SC1_IN_Y_IN

B-SC1_IN_U_IN

R-SC1_IN_V_IN

9282

5002

1000
UV1336

6, 7 9

2

TV TUNER

ERR

5

SDA

SCL

REAR I/O

A8

1

6

4

CVBS_TER_OUT

A4

A5

A5

A4

6001
BZX79-C33

VT

IF

10

AGC

1

4

1

2

3

SEL_AV1_AV2

A4

SVHS

(OPT.)

154

AV2

VT_SUPPLY_A

F003

11

TUNER_AGC

V

L

R

AV1

1001

AUDIO PROCESSING (STEREO + SAP)

A5

(FOR STEREO SETS ONLY)

7841
AN5829S

1

L1_IN

A5 A4

2

R1_IN

A5

3

7161,
7162

SWITCH

9

11

10

6

5

32

4

V

L2-IN

L

R2-IN

R

A2

VIF_1

VIF_2

STATUS2

C-IN

A4

A5

A5

A8

SY_CVBS_IN

A4

A4

A4

IF, VIDEO

7200-A
TDA93XX

23

24

27

L1_IN

VIDEO

IF

AGC

SOUND

FM-DEMOD.

DE-EMPH.

(MONO)

A8

A8

L1_IN

R1_IN

R2_IN

L2_IN

VIDEO

PLL

DEMOD.

AUDIO

SWITCH

2

MATRIX
SWITCH

3

24

23

STEREO

14

35

+

SAP

DEMODULATOR

ERR

4

VIDEO

AMPLIFIER

SOUND

AMPL.

+ AVL

I848 I830

21

22

19

18

38

44

I847

3842

3843

AM_FM_MONO

L_OUT

R_OUT

R_OUT

L_OUT

SCL

SDA

A4

+8VD

7201

+8V

7202

3828

3827

3205

3203

7821
AN5891K

3

22

A8

14

13

MONO

AUDIO CARRIER

FILTER

5201

1201

4.5MHz

A8

A8

SURR
TONE

ERR

4

L_OUT

C-IN

SY-CVBS-IN

A8

12

15

I836

CVBS_TER_OUT

7200-C
TDA93XX

40

SWITCHING

VIDEO

43

FILTERS

42

VIDEO
IDENT

A8

Main_OutL

Main_OutR

A8

I/O

Y-DELAY

PAL/NTSC
DECODER

R_SC1_IN_V_IN
G_SC1_IN_Y_IN
B_SC1_IN_U_IN
FBL_SC1_IN

A6

A4

Vaux/Vaudio

R-Y

B-Y

VOLUME

AUDIO AMPLIFIER

7901 AN7522N (STEREO)

7902 AN7523N (MONO)

62 L+

8

9

1

L+

L-

R-

R+

RGB

MATRIX

RGB

INSERT

Y

BLACK

STRETCH

U

BASE
BAND

DELAY

V

WHITE

STRETCH

4746 48

F905

F906

4L-

F907

10 R-

F908

12 R+

A7

2X5W 16Ohm
2X3W 8Ohm
2X1W 8Ohm

45

HEADPHONE

L+

L-

R-

R+

SPEAKER

R

G

OSD/TEXT/CC

B

0280

OSD

RGB

CONTROL

INSERT

BLUE

STRETCH

WHITE-P.

ADJ

50

4

5

1

2

L

R

3619

51

3620

52

3621

53

49

A7

6692
TSOP1836

+3V3

KEYBOARD

POWER (USA only)

0239

E

KEYBOARD

CHANNEL + / -

VOLUME + / -

F603

F604

F605

BEAM-LIMIT

FRAME_OUT

FRONT CONTROL

F691

1

6691

LOCAL

CHANNEL + / -

VOLUME + / ­DVD EJECT

TOP
CONTROL

LOCAL

RED

GREEN

BLUE

A2

A2

+160 V

A2

A2

IR

LED

1010

2

FILAMENT

1622

1

2

3

4

5

6

7

8

CONTROL

A4

IR

67

11

LED

KEYBOARD

F301

F302

F303

+160 V

7313
7314

7315
7316

7317
7318

8

R

G

B

OR

OR

CRT

B1

1300

1

2

3

4

5

6

7

8

7200-B
TDA93XX

ROM
RAM

1/10

PAGES

MEMORY

TELE

TEXT/CC

OSD

CVBS

+160V

54 61 56

IIC

BUS

I/O

PORTS

VST

PWM-

DAC

+

SYNC

3313

+3.3V

56035601

5602

CPU

3418

6318

WP

11 7

+3V3

3605

3

3604

2

5

6

7

1

63

64

4

60

57

1621

58

12MHz

3301

R

F309

3305

G

B

F310

3309

7641
M24C04

EEPROM

(NVM)

ERR

9

36013602

SDA

F642

SCL

F643

SDAM

9257

0165

AQUADAG

7

R

9

G

3

B

45 68

+3.3V

8
6
5

ERR

6

Pvv_ADJ

ITV_CLOCK

ITV_POR

Std_Con

STATUS 2

SEL_AV1_AV2

VOLUME

VG2

36423643

SDA

SCL

POR
(ITV)

CRT
(9P)

A3
A5

A1

N.C.

A4

N.C.

A4

A1

A8

A8

A6

N.C.

A4

25kV

EHT

DVD POWER SUPPLY

A9

(optional)

DVD_SUPPLY

A1

VTsupply-A

A3

POWER SUPPLY

A1

7570

SI2306D

0211

32

3571

Degaussing

MAINS

SWITCH

0231 (NOT USA)

7523

3528

SYNC.

7571
L4978

5571

5

Vcc

CONTROL

1

Coil

1500

3506

I505

6520

T4E

0212

7520
TEA1506

2

Vcc

6

CTRL

CONTROL

+12V-DVD

5500

DRAIN

IC

OUT

1

t

DRIVER

SENSE

DEMAG

3504

14

5572

+8V-DVD

I533

6504

AC

G

5574

5573

5575

DC

7521

3526

6522

2528

4

6571

3527

3523

11

3525

9

3522

7

1572

F567

1

TO MPEG

3

CARD
(optional)

5

F566

1571

F568

1

TO DVD
ENGINE

4

(optional)

1515

43

2

1

F510

5520

1

2503

2

D

3

S

I514

5

6

4

1

2

3

HOT GROUND COLD GROUND

7580

ENERGIZING

8

13

12

10

9

7515
TCET1103

CIRCUIT
(optional)

5570

5562

5560

-12V

6570

6563

6562

6561

6560

7540, 6540

REFERENCE

CIRCUIT

7541

STANDBY

CIRCUIT

I553

F540

+3V3B

3549

5563

3543

3544

7451

DVD-SUPPLY

(OPTIONAL)

MAIN SUPPLY

F542

Vaux/Vaudio

3549

Std_Con

EHT

A9

PW-ADJ

A4

A2

A4

A4

A2

EHT 0

36

7200-D
TDA93XX

SEPERATOR

VIDEO

INTERNAL

H/V SYNC

H-OSC

+PLL

H

V

34

H-DRIVE

2nd LOOP

H-SHIFT

V-DRVE

+

GEOMETRY

EW

+

GEOMETRY

H-DRIVE

33

I462

I461

V-DRIVE -

22

V-DRIVE +

21

I462

20

N.C.

DEFLECTION

A2

Hflybk

-12V

7422

Vaux/Vaudio

A2

FILAMENT

7461

3425

6423

7423

3424

3463

5461

MAINSUPPLY

7462

3465

LINE

A1

FRAME

7463

I468

F407

7421

BUT11APX

F425

7466

-12V

3403

7465

7464

F422

6408

6407

3470

3464

3474

6422

5401 3402

F461

2423

0222
1

2

2406

0221
1

2

1

7

2

HOR.
DEFL.
COIL

5445

VERT.
DEFL.
COIL

EHT

10

9

8

5

4

FOCUS VG2

3447

3451

2455

3448

3445

3443

3444

3446

6463

6451

6452

6447

3459

6446

6444

3475

F449

F448

F446

EHT

EHT 0

BEAM­LIMIT

+160V

VT_SUPPLY

-12V

FILAMENT

FRAME OUT

EHT

FOCUS

VG2

A1

A4

A4

A3

A4
A2

A4

CL 36532044_030.eps

190603

22

A1

L03.1L AA

I2C e Vista Geral das Tensões de Alimentação

POWER SUPPLY

Degaussing

0211

7523

3528

Coil

MAINS

SWITCH

0231 (NOT USA)

3506

I505

6520

0212

1500

T4E

7520
TEA1507

2

Vcc

6

CTRL

CONTROL

DRAIN

IC

t

5500

DRIVER

SENSE

DEMAG

7580

1515

43

3504

6504

AC

DC

3527

3523

3525

3522

7521

D

G

I533

S

3526

6520

2528

14

11

9

7

VCC

F510

5520

1

2503

2

3

I514

5

6

4

3

HOT GROUND

2

ENERGIZING

1

8

13

12

COLD GROUND

10

9

1

7515
TCET1103

2

CIRCUIT
(optional)

5570

5562

5560

6570

6563

6562

6561

6560

7540, 6540

REFERENCE

CIRCUIT

7541

STANDBY

CIRCUIT

F540

F542

CRT

B1

EHT

3494

3495

FOCUS

VG2

160 V

FILAMENT

Vaux/Vaudio

4491

5482

1622

+3V3

+3V3A

+8V

+8VD

+5V

TUNER IF

A3

+ 5 V

VT supply

VT Supply-A

+ 5 V

+ 8V

Vaux/Vaudio

+ 5V

FILAMENT

+ 3V3A

+ 3V3B

9282

5841

5821

4698

4163

7

8

2x

AUDIO PROCESSING

A5

1x

2x

1x

1x

1x

1x

AUDIO AMPLIFIER

A6

AUDIO FRONT I/O

A7

REAR I/O CINCH

A8

+ 8 V

3693

+ 5 V

VT supply

VT supply-A

7 - 7841

23 - 7821

1 - 7901
or
1 - 7902

+ 5V

FILAMENT

+3V3B

3 - 6692

+8V

+8VA

DVD POWER SUPPLY

A9

(optional)

DVD_SUPPLY

32

7570

SI2306D

VTsupply-A

A2

-12V

H DRIVE

A4

-12V

I553

3549

3543

3544

DVD-SUPPLY

5563

3549

(OPTIONAL)

MAIN SUPPLY

Vaux/Vaudio

PW_ADJ

7451

EHT

+3V3B

Std_Con

Vaux/Vaudio

FILAMENT

V DRIVE-

1x
2x

A4

V DRIVE-

A4

A2

A4

DEFLECTION

7422

7461

3571

3424

5461

7423

3425

6463

3463

7462

3465

5571

1

LINE

FRAME

7463

7571
L4978

5

Vcc

CONTROL

7421

BUT11APX

F425

7466

-12V

OUT

1

+12V-DVD

3403

7464

7465

4

F422

6408

6407

3470

3464

3474

5572

+8V-DVD

6571

6422

5401 3402

F461

+8V-DVD

2423

0222
1

2

2406

0221
1

2

1

7

2

HOR.
DEFL.
COIL

5574

5573

5575

5441

VERT.
DEFL.
COIL

F567

F566

F568

10

9

8

5

4

1572

1

3

5

1571

1

4

EHT

TO MPEG
CARD
(optional)

TO DVD
ENGINE
(optional)

FOCUS VG2

3447

3451

2455

3448

3445

3443

3444

3446

6463

6451

6452

6447

3459

6446

6444

F449

F448

F446

EHT

EHT 0

BEAM­LIMIT

+160V

VT_SUPPLY

-12V

FILAMENT

EHT

FOCUS

VG2

A1

A4

A4

-12V,

FILAMENT,

Vaux/Vaudio

2x
2x

1x

2x

B1A4

Vaux/Vaudio

FILA­MENT

VTSupply-A

VT supply-A,
VT supply,
FILAMENT

VIDEO PROCESSING

160VD

FILAMENT

7493

1

7494

3496

3497

6492

4379

3493

3491

1300

7

8

3

6491

A1

In

A2

7496

7491

3492

ERROR CODE LIST

Error Device Error description Check item Diagram
0 Not applicable No Error - -
1 Not applicable X-Ray Protection (USA) - -
2 Not applicable Horizontal Protection 7421, 7422, 7423 A2
3 Not applicable Vertical Protection 7461, 7462, 7463, 7464,

4 AN5891K &

AN5829S

5 TDA93XX POR 3.3V / 8V Protection 7200, 7541, 7491, 7493,

6 I2C bus General I2C bus error 7200, 3604, 3605 A4
7 Not applicable - - -
8 Not applicable E/W Protection (Large Screen) - -
9 M24C16 NVM I2C identification error 7641, 3641, 3642, 3643 A4
10 Tuner Tuner I2C identification error 1000, 3003, 3004 A3
11 Not applicable Black current loop protection 3313, 7307, 7308, 7309,

12 Not applicable MAP I2C identification error

13 Not applicable VC I2C identification error (Eu) - -
14 Not applicable DVD I2C identification error - -

Tone control & Audio
processor I2C identification
error

(USA)

7465, 7466
7821 (tone IC), 7841
(Stereo/Sap)

7496

7310, 7311, 7312, 7313,
7314, 7315, 7316, 7317,
7318, CRT

--

A4, A1

I2C BUS INTERCONNECTION DIAGRAM

CONTROL

A7

A2

A5

7200-B

SET

PROCESSOR

PART OF

VIDEO-

PROCESSOR

TDA9370

3

2

11

SDA

SCL

3605

3604

+3.3V

+3.3V

ERR

7

3643

7641

M24C04

EEPROM

(NVM)

ERR

9

3642

6

65

3602

3601

+3.3V

3644

WP

SDA

SCL

A3

TUNER IF

3003

1000

TUNER
UV1336

ERR

10

3004

45

A5

SDA

SCL

AUDIO PROCESSING
(only for stereo sets)

3828

3827

1314

7821

AN5891K

AUDIO
PROC.

ERR

4

3842

3843

4119

7841

AN5829S

AUDIO

DECODER

ERR

4

B1

1003

1

2

FOR

ONLY

3

COMPAIR

24

L03.1L AA

7. Esquemas Elétricos e Layouts dos Painéis

Mono Painel: Alimentação

1234567891011

ALIMENTAÇÃO

A

3

+t

DEGAUSSING COIL

0212

1

0211

2

2

1

B

C

150 - 276 V SINGLE RANGE

90 - 276 V FULL RANGE

MAINS

D

E

7523
BC857B

4V6

F

"$"

FOR MAINS 120V AC 170V (177V)

G

..V.. Normal Operation in " SERVICE MODE "
(..V..) Standy Mode

HOT GROUND

COLD GROUND

3139 123 5596.1

2527

56p

10K

3528

220V AC 309V (317V)

L_GND

I505

2V9

0V

9500

*

56

2

1

MAINS SWITCH

9501

*

3M3

3500

3501

3M3

2521

2526

6520

BYD33D

RES

3521

*

4

3

17V8

(13V8)

22u

1n0

*

0231
ESB92

1V3

3520

2505

BZX384-C22
3507 33K

7520

TEA1506T

Vcc

3

Gnd

6

Ctrl

1K2

2520

2n2

PFC5000

6505

10n

1500

T4E.250V

FREQUENCY

INPUT

CONTROL

CIRCUIT

BURST

DETECTOR

CONTROL

1501

PFC5000

2500

3509

SUPPLY

MANAGEMENT

TEMPERATURE

PROTECTIOM

470n

220R

3510

DSP

VOLTAGE
CONTRLLED
OSCILLATOR

OVER

POWER-ON

RESET

1

1

*

2

DMF-2820

1

*

2

RES

*

CONTROL

CIRCUIT

MAXIMUM

ON-TIME

PROTECTION

330K

LOGIC

5500

5501

RES

55023146

C914

3506

Rs

Rp

*

4

3

4

3

VALLEY

9509

5509

3503

3504

2

*

*

3508

1M5

START-UP

CURRENT SOURCE

START-UP

CURRENT SOURCE

CURRENT
SENSING

OUTPUT
DRIVER

OVER

POWER

PROTECTION

+t

10R - PTC

9502

3502

t

3505

RES

Drain

Demag

Sense

Driver

0211 C1
0212 B1
0213 C5

Region

Size

0231

1N4148

STPS10L60D

5560

4560
RES

3541

470R
3545

2K2

2503
3523
3526

5520
6561
7521
9500
9501

Relay Cct.

6570

2571

10n

3V3

2505
3503
3504
5500
5502
9503

7541

PDTC114ET

3V3

For Relay Cct.

RES

1515

*

G5P

2501

2502

6500

1N5062 (COL)

2n2

GBU8K
6502

2n2

1N5062 (COL)

1N5062 (COL)

6504

1N5062 (COL)

6501

6503

2504

400V

150u

2503

9503

*

"$"

RES

2507

*

14

23

F510

2515

1n5

0213

*

2

V

8

10

For ITV

1

ONLY

9520

5521

I514

9515

47K

2524

100n

5515

RES

2525

3527

2K2

470p

3522

330K
35253524

1K0

3523

*

3581

1K0

2V6

3519

3K3

302V

7521

*

D
S

G

0V

2585

1n

I533

3526

RES

7522
PDTC143ZT

6522

BYD33D

2543

1n0

302V

142

7

0V

9

0V

11

2V6

2584

220p

2522

2523

*

TCET1103(G)

2528

303V

470p

1n8

6521

50V22u

5520

*

1

132

12

3

11

10

5

9

6

78

AudioSupplyGnd_A

1509

1508

1516

1N4148

7515

4V9

HOT

14

32

9V3

8V3

COLD

22V6

7580

BC847B

1520

5506

DVD_Gnd

*

2542

*

2580

*

RES

9506
RES

RES

T1.8AE 250V

470n

-12V

3580

5570

1560

9560

JUMP

47K

6580

47u

14"

SWITCH

100u/400V

NFR25 68R

-

STP5NK80ZFP

--

-

SWITCH

150u/400V

1W/0R151W/0R18

S359B4-09SS28010-06

BYW76-RAS15/10

STP7NK80ZFP

NAFTAL ATAMITEM

NO

YES

YES

NO

NO

YES

NO

YES

NO

DVD_Gnd

F542

6540

C914

YES

NO

YES

16V

2570

3m3

2561

3549

3542

6V2

BZX79-B6V8

7540
BC547B

7V7

2540

2541

16V2m2

220R

1K5

15n

10n

5562

6541

6V8

DMF2820

I553

1570

T2.5AE 250V

6560

SB340

2560

2n2

3V3

-

F510

I514

100V / div DC

2562

2n2

BZX79-C9V1

3548

SS28010-06

STP5NK90ZFP

50V / div DC

5µs / div

5µs / div

6563

BYW29EX

6562

BYW76

6561

*

6K8

15K

3544

3547

3454

10K

L ATAM

-

100u/400V

NFR25 68R

1W/0R18

-

JUMP

2564

82K

3543

7451

*

BC857B

15RF/20"/21"Mexico14"MEXICO15RF/20"/21"

150u/400V

NFR25 47RNFR25 47R

1W/0R15

S359B4-09

BYW76-RAS15/10

STP7NK80ZFP

JUMPJUMP
JUMP

F540 97V DC
F542 13V5 DC

I505 17V8 DC

I533

2V / div DC

5µs / div

F540

47u

3582

330K

FOR ITV ONLY

3453

100K

2453

4n7

-

5563

27u

3550

10K

3546

6K8

2452

82n

3452

820K

21RF

-

-

-

-

22K330K330K330K330K3547

-

-

-

-

-

DVD_Supply

(OPTIONAL)

MainSupply

Vaux/Vaudio

3456

47K

ITV_Vbatt

PW_ADJ

A4

EHT

A2

+3V3B

Std_Con

CL 36532044_001.eps

A4

200603

A

B

C

D

E

F

G

0231 C2
1500 B2
1501 B3
1508 E7
1509 E7
1515 A7
1516 E7
1520 B7
1560 D7
1570 C8
2452 F11
2453 F10
2500 C3
2501 B5
2502 B5
2503 B6
2504 B6
2505 B2
2507 B6
2515 C7
2520 G2
2521 E2
2522 D6
2523 E6
2524 E5
2525 F5
2526 E2
2527 F1
2528 G6
2540 F9
2541 G9
2542 G7
2543 F6
2560 D8
2561 D9
2562 D9
2564 D10
2570 C9
2571 C8
2580 B7
2584 C6
2585 E6
3452 F11
3453 F10
3454 F9
3456 F11
3500 C2
3501 D2
3502 C4
3503 B4
3504 B4
3505 C4
3506 D4
3507 D2
3508 B4
3509 C3
3510 D3
3519 F6
3520 G2
3521 F2
3522 E5
3523 E5
3524 E5
3525 E5
3526 E6
3527 D5
3528 F1
3541 F8
3542 E9
3543 E10
3544 F9
3545 G8
3546 F11
3547 F9
3548 F9
3549 E9
3550 E10
3580 A7
3581 F6
3582 D10
4560 D8
5500 B4
5501 C4
5502 D4
5506 C7
5509 G4
5515 E5

5520 C7
5521 D6
5560 D8
5562 C9
5563 C10
5570 C7
6500 B5
6501 B5
6502 B5
6503 B5
6504 B5
6505 D2
6520 E2
6521 E6
6522 F6
6540 F8
6541 E9
6560 D8
6561 D9
6562 C9
6563 C9
6570 C8
6580 A8
7451 F10
7515 F7
7520 D2
7521 E6
7522 F6
7523 F1
7540 F9
7541 G8
7580 A7
9500 B2
9501 C2
9502 C4
9503 A6
9506 C7
9509 G4
9515 E5
9520 D6
9560 D7

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