L01.1LAB-2K2.pdf

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340509145 UNPDF
TelevisoremCores
Chassis
L01.1L
AB-2K2
21PT639A/78R
21PT739A/78R
21PT839A/78R
21PT839B/78R
28PW6421/78R
32PW6421/78R
ê
Volta ao Menu
(TELAGRANDE)
CONTEÚDO
PÁGINA
1 Especii cações Técnicas, Conexões e Visão
Geral do Chassis
2
2 Precauções de Segurança e Manutenção
Instruções, Avisos e Notas
4
3 Instruções de Uso
5
4 Instruções Mecânicas
27
5 Modos de Serviço, Códigos de Erro e
Descoberta de Falhas
29
6 Diagrama em Blocos , Pontos de teste, I2C e
Vista Geral da Tensão de Alimentação
Diagrama em Blocos 35
Vista Geral dos Pontos de Teste 36
I2C e Diagrama da Tensão de Alimentação 37
7 Esquemas e Painéis Diagr. Painel
Fonte de Alimentação (Diagrama A1) 38 31-37
Del exão Horizontal (Diagrama A2) 40 31-37
Del exão Vertical (DiagramaA3) 42 31-37
Tuner I/F (Diagrama A4) 43 31-37
FI Video + FI Som (Diagrama A5) 44 31-37
Sincronização (Diagrama A6) 45 31-37
Controle (Diagrama A7) 46 31-37
Amplii cador de Áudio (Diagrama A8) 47 31-37
BTSC (Stereo / Decoder SAP) (Diagrama A9) 48 31-37
Chaveamento da Fonte de A/V (Diagrama A10) 49 31-37
BTSC NDBX Stereo Decoder (Diagrama A11) 50
E/S Frontal+Controle+Headphone(Diagr. A12) 51 31-37
E/S Traseira Cinch (Diagrama A13) 52 31-37
Painel CRT (Diagrama B1) 60 39-40
Painel AV Lateral + Headphone (Diagrama E1) 63 41
Painel de Controle Superior (Diagrama T) 64 42
Painel de Controle Superior (Diagrama T1) 65 43
8 Ajustes
67
9 Descrição do Circuito
73
Lista de Abreviações
82
10 Lista de Material 21PT639A
84
Lista de Material 21PT739A
89
Lista de Material 21PT839B
94
Lista de Material 28PW6421_78R
99
Lista de Material 32PW6421_78R
105
Lista de Material 21PT839A
111
ImpressonoBrasil
Sujeitoaalterações
TodososDireitosReservados
480672717261
07/2002
21PT639A/78R
21PT739A/78R
21PT839A/78R
21PT839B/78R
340509145.291.png 340509145.302.png 340509145.313.png 340509145.324.png 340509145.001.png 340509145.012.png 340509145.023.png 340509145.034.png 340509145.045.png 340509145.056.png 340509145.067.png
38
L01.1L AB-2K2
Mono Painel: Fonte de Alimentação
1
2
3
4
5
6
7
8
9
10
11
0211 C1
0212 A1
0213 B5
0231 C1
0251 E11
0282 F11
1500 B2
3595 E10
3596 E10
4500 C10
5500 C4
5501 C3
5502 A5
5520 C7
5521 D7
5560 D8
5561 D10
5562 C8
5564 D9
6500 B6
6520 E2
6522 D2
6523 D5
6524 D7
6525 E7
6526 D6
6540 F9
6541 E8
Y
A1
Alimentação
VlotAux+13V
2581
For AV Video
1515
G5PA
22u
3565
1515 A8
1540 E10
2500 C3
2501 C6
2502 B6
2503 C6
2504 C7
2505 C7
2506 B5
2507 D7
2508 C7
2509 C4
2515 B8
2516 B8
2520 F2
2521 E1
2522 D6
2523 D6
2525 E5
0212
330R
A
1
A
9505
3558
330R
+3.9V
2
3504
7580
BC857B
3557
1K
6565
12V4
+t
DEGAUSSING COIL
BAV70
ZPB
11V8
3590
150R
7560
LE33CZ
2515
0V
*
12V
1
3
3V3
+3.3V
9510
OUT
IN
1n5
GND
2
MainSupplyGnd
9504
2516
6582
2590
0V
P4
6560 D9
6561 B9
6562 C9
6563 C9
6564 C11
6565 A11
6566 F10
6567 D9
6568 E9
6569 G9
6570 G8
6580 A9
6582 B9
7515 E7
7520 D2
7521 C6
7522 C5
7540 F9
7541 F8
7542 F8
7560 A10
7561 D10
7562 C9
7564 B10
*
3510
9503
B
B
*
2u2
STPS10L60D
2506
3509
t
2
2562
EAR
B57237
*
*
P1
"$"
1n
9511
P5
*
0213
4
6500
1
2526 D2
2527 E7
2528 E2
2540 E9
2541 F8
2560 D9
2561 D9
2562 B9
2563 D9
2564 C9
2566 C10
2567 B10
2568 G8
2569 G10
2580 B9
2581 A9
2590 B9
3500 C2
3501 D2
3503 B5
3504 A3
3506 C4
3507 C4
1500
6561
*
*
3564
MAINS
9500
9508
9506
*
12V
2
MainAux
150 - 276 V SINGLE RANGE
USA
*
*
T4E.250V
*
0R1
7564
90 - 276 V FULL RANGE
0231
1
*
5501
4
2
5500
3
ONLY
*
SB340
12V
1
SDW
56
9502
*
3
5520
*
6562
B C857B
2
4
2
FOR ITV ONLY
for ITV only
2
3
1
4
18
2566
EGP20DL
1
3
2
3
1
DMF-2405
DMF-2820
11V5
TO
OF
17
470u
0211
C
OR
MAINS SWITCH
*
9509
*
9507
AudioSupplyGnd
C
P2
16
*
TO 0283
3508
3507
3567
7522
3532
11V8
9501
3568
OF
2V8
4
5
15
*
BC847B
DSP
2K2
7562
11V5
*
EW_protection
0V
2K2
7521
14
BC857B
6564
*
OR
D
13
4500
BAS216
6563
BAS316
0V
G
3562
12K
3V
S
5521
12
2563
100n
"$"
8
9
11
3563
8 K 2
+3.3V
10
6567
POWER_DOWN
7580 A8
9500 B2
9501 C2
9502 C2
9503 B5
9504 B5
9505 A3
9506 B4
9507 C4
9508 B3
9509 C3
9510 B9
9511 B10
D
7520
TEA1507
*
3V2
A7-11
D
P3
-3V2
A2-11
2560
16V8
"$"
3528
(13V8)
1
Vcc
START-UP
CURRENT SOURCE
VALLEY
Drain
8
5560
6524
680p
SUPPLY
MANAGEMENT
2522
0V
*
6560
5564
7561
PDTC143ZT
P6
3508 C3
3509 B5
3510 B5
3511 B6
3519 E6
3520 F2
3521 F2
3522 E5
3523 E5
100n
Jumper
3525
*
*
0V
2
Gnd
BYV29X-500
VOLTAGE
CONTRLLED
OSCILLATOR
HVS
7
0V
1K
3524
56K
5561
27u
140V
6568
FREQUENCY
START-UP
CURRENT SOURCE
Demag
4
0V
*
*
MainSupply
CONTROL
OVER
TEMPERATURE
PROTECTIOM
LOGIC
CONTROL
CIRCUIT
BYW76
Sense
5
0V
FOR ITV ONLY
0251
CURRENT
SENSING
*
3594
E
1
E
10V
470R
TO 0251
3524 D6
3525 D6
3526 E7
3527 E7
3528 D2
3529 D4
3530 D6
3531 D5
3532 C6
3541 E8
3542 E9
3543 E10
3544 F10
3545 F9
3548 E9
3550 F10
3552 F8
3557 A9
3558 A9
3560 C9
3561 C8
3562 C9
3563 D10
3564 B10
3565 A9
3566 G8
Driver
17V
(7V7)
2
6
2V
POWER-ON
RESET
OUTPUT
DRIVER
3548
OF
INPUT
CONTROL
CIRCUIT
BURST
DETECTOR
3
1
1V3
3
Ctrl
3
7515
15K
*
3541
MAXIMUM
ON-TIME
PROTECTION
OVER
POWER
3519
270R
TCET1104G
4
2
4
1540
PROTECTION
1V7
9V
8V8
*
(12V)
(6V7)
470R
6V8
Vcontrol
9V
7541
6V8
TO 0283
PDTC114ET
0V
7540
OF
BC547B
0282
0V
F
F
P1 = "$"
2541
1n
7542
TO
OF
P2
BC857B
3552
0V
MainSupplyGnd
"$"
FOR MAINS 120V AC 170V (177V)
1V8
10K
6566
Stdby_con
A7-5
220V AC 309V (317V)
2569
0V
1N4148
*
3566
6569
RES
-V NORMAL OPERATION
2K2
BAS216
5V / div DC
5us / div
2568
G
(-V) STANDBY OPERATION
1u
G
P3 = 16V8 (13V8)
P4 = 3V3
P5 = 12V
P6 = 140V
HOT GROUND
3567 C9
3568 C10
3569 F8
3570 C10
3580 A9
3590 A9
3594 E9
COLD GROUND
CL 26532046_021.eps
070502
1
2
3
4
5
6
7
8
9
10
11
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40
L01.1L AB-2K2
Mono Painel: Deflexão Horizontal
1
2
3
4
5
6
7
8
9
10
11
0220 A2
3465 A10
3468 E2
3469 B9
3481 C8
3482 C9
3483 B10
3484 C9
3485 A6
3486 A6
3487 A5
3488 C9
3489 B3
3490 B9
3491 D2
3492 D2
0221 B6
0288 F6
0289 A9
0319 B2
0321 D8
0322 G5
1400 B4
1402 E7
1410 F7
2400 F4
2401 F4
2402 F3
2404 G5
2405 D3
2415 E3
2420 B4
2421 B4
2422 B4
2423 B4
2441 F9
2443 F10
A2
Deflexão Horizontal
*
9453
9451
RES
MainSupply
*
3487
5451
27u
1.9V
EHTinfo
A2-16
4R7
3485
A
A5-16
A
2451
RES
TO 0290
*
*
A6-16
OF
*
3486
0289
0220
*
EHTinfo
1
3493 C3
3494 B9
3499 D2
4430 C2
5400 E4
5401 E5
5445 B7
5450 B2
5451 A6
5452 C4
5453 C3
5457 B6
5461 D3
5463 E7
A2-16
2448
2
TO 0244
VideoSupply
OF CRT
9420
3
PANEL
*
3469
Hflybk
VlotAux+13V
2420
HORIZONTAL
1
A6-18
3490
8K2
3K3
5445
*
4
VlotAux+13V
*
MainSupplyGnd
DEFLECTION
COIL
4
2423
EHT
BAV99
5
2444 G8
2448 A9
2450 A5
2451 A6
2452 B2
2453 B5
2454 B5
2455 D3
2456 D6
2457 D6
2458 C6
2459 B6
2460 D2
2461 E2
2462 E4
2463 D4
2464 E6
2465 D4
2466 E5
2467 E5
TO PICTURE TUBE
6449
B
*
0221
B
3
2422
VH
5V
0V
L5
*
FOCUS
VG2
6485
3494
200V
Filament
2421
VideoSupply
0319
A2-69
13V3
1
BYD33J
4R7
*
3489
Bass_panorama
7444
5464 E6
5465 E6
5480 E8
6400 F3
6401 F5
6402 F3
6403 F3
6445 F8
6447 E8
6448 G10
6449 B9
6452 B4
6453 F10
6460 D4
6461 E4
6462 E2
6463 E2
6465 D6
6466 C6
6467 C2
6468 C2
6469 C3
6481 D10
6482 E10
3481
3482
A7-7
MainAux
0V
*
10
*
*
0V
6
L6
L7
3460
C
C
5
3488
VT_Supply
6487
3K9
PANORAMA
2490
VlotAux+50V
6467
*
11
BYD33D
4R7
2458
VlotAux+13V
BAS216
6468
*
+13V
VlotAux+13V
5452
L3
7
2481
9422
L8
9V
5V
BAS216
7460
BU4508DX
VlotAux+5VA
3464
L2
100MH Z
470p
2468 E5
2469 D6
2470 E5
2480 D9
2481 C8
2482 A10
2484 D6
2485 B10
2486 D9
2487 C9
2488 D9
2489 D10
2490 C6
2491 E8
2492 B10
2493 E5
3400 E3
3401 F3
3402 F3
3403 G3
*
*
12
7482
6486
L9
4R7
BD135
3491
3
6
0V
*
*
EGP20DL
11V6
8
D
D
0V
3463
33R
1
0321
*
9460
9
5V2
6489
6481
L1
5461
*
3449
100R
7461
BC337-25
*
L10
2460
2455
BYD33D
BZX79
5V5
6488
C5V6
47u
*
*
+8VB
*
*
*
*
*
EGP20DL
9V
8V
6483 C9
6485 B8
6486 D8
6487 C8
6488 D8
6489 D8
6490 D2
7400 G4
7441 E9
7443 G9
7444 C4
7450 F10
7460 D3
7461 D2
7462 F1
7463 E2
7480 E9
7482 D10
9420 B2
9422 C9
9423 D2
2461
2415
3448
5V2
*
*
1402
2491
VlotAux+13V
1
7480
BD135
8V9
*
0V
*
3447
6482
7463
2
6463
L11
BC327-25
*
*
E
E
*
3
5480
BZX79-C9V1
Filament
UDZS-10B
*
*
VlotAux+13V
A2-69
3400
7441
BC857B
+13V
*
9463
VlotAux+5VA
3441
100R
Vguard
1V5
3404 G3
3405 G4
3406 G4
3407 G4
3408 G5
3410 G5
3411 F4
3430 E7
3431 F7
3441 E10
3442 F9
3443 F10
3445 F8
3446 F8
3447 E9
3448 E10
3449 D10
3450 D10
3451 F8
Hdrive
*
*
13V3
5V
A3-65
A6-21
*
*
*
*
*
0V
*
3443 1M
7462
PDTC143ZT
BLK-IN
3442
1K
2443
47n
A5-36
*
*
*
6453
*
L4
7450
PDTA114ET
3457
POWER_DOWN
F
F
3402
2400
6401
1410
*
BZX384-C6V8
0R
A1-11
*
*
*
For Picture
Width Control
3452
EHTo
2402
*
0288
TO DAF
A6-23
9424 F3
9426 F3
9451 A6
9453 A5
9460 D6
9461 E6
9462 E6
9463 E6
9464 E6
*
*
5V6
2V
CCT.
3453
1K
VlotAux+13V
*
PANEL
3403
6V3
6448
7443
*
*
BC557B
BZX79-B6V2
Vcontrol
137V
EWdrive|EWD_dyn
3404
D
3410
EW_protection
3452 F9
3453 F10
3454 G9
3455 D10
3456 F10
3457 F10
3458 C6
3459 D6
3460 C10
3463 D4
3464 D9
G
A2-22
*
G
S
A7-9
G
10K
0V
7400
0V
*
*
*
*
*
L1
L2
L3
L5 = 200V
L6 = 50V
L7 = 50V
L8 = 13V
L9 = 5V
L10 = 8V
L11 = 13V
L12
ONLY FOR SETS WITH
E/W CORRECTION
0322
1V / div DC
20us / div
100mV / div DC
10us / div
200V / div DC
20us / div
2V / div DC
20us / div
CL 26532046_023.eps
070502
1
2
3
4
5
6
7
8
9
10
11
340509145.046.png 340509145.047.png 340509145.048.png 340509145.049.png 340509145.050.png 340509145.051.png 340509145.052.png 340509145.053.png 340509145.054.png 340509145.055.png 340509145.057.png 340509145.058.png 340509145.059.png 340509145.060.png 340509145.061.png 340509145.062.png 340509145.063.png 340509145.064.png 340509145.065.png 340509145.066.png 340509145.068.png 340509145.069.png 340509145.070.png 340509145.071.png 340509145.072.png 340509145.073.png 340509145.074.png 340509145.075.png 340509145.076.png 340509145.077.png 340509145.079.png 340509145.080.png 340509145.081.png 340509145.082.png 340509145.083.png 340509145.084.png 340509145.085.png 340509145.086.png 340509145.087.png 340509145.088.png 340509145.090.png 340509145.091.png 340509145.092.png 340509145.093.png 340509145.094.png 340509145.095.png 340509145.096.png 340509145.097.png 340509145.098.png 340509145.099.png 340509145.101.png 340509145.102.png 340509145.103.png 340509145.104.png 340509145.105.png 340509145.106.png 340509145.107.png 340509145.108.png 340509145.109.png 340509145.110.png 340509145.112.png 340509145.113.png 340509145.114.png 340509145.115.png 340509145.116.png 340509145.117.png 340509145.118.png 340509145.119.png 340509145.120.png 340509145.121.png 340509145.123.png 340509145.124.png 340509145.125.png 340509145.126.png 340509145.127.png 340509145.128.png 340509145.129.png 340509145.130.png 340509145.131.png 340509145.132.png 340509145.134.png 340509145.135.png 340509145.136.png 340509145.137.png 340509145.138.png 340509145.139.png 340509145.140.png 340509145.141.png 340509145.142.png 340509145.143.png 340509145.145.png 340509145.146.png 340509145.147.png 340509145.148.png 340509145.149.png 340509145.150.png 340509145.151.png 340509145.152.png 340509145.153.png 340509145.154.png 340509145.156.png 340509145.157.png 340509145.158.png 340509145.159.png 340509145.160.png 340509145.161.png 340509145.162.png 340509145.163.png 340509145.164.png 340509145.165.png 340509145.167.png 340509145.168.png 340509145.169.png 340509145.170.png 340509145.171.png 340509145.172.png 340509145.173.png 340509145.174.png 340509145.175.png 340509145.176.png 340509145.178.png 340509145.179.png 340509145.180.png
42
L01.1L AB-2K2
Mono Painel: Deflexão Vertical
1
2
3
4
5
6
7
8
9
0222 D8
2471 B5
2472 D6
2473 C7
2474 D3
2475 E3
2476 C7
3470 C6
3471 E7
3472 E7
3473 E7
3474 D4
3475 E4
3477 D7
A3
Deflexã o Vertical
A
A
3478 D7
3479 E7
3480 D7
3495 C7
3496 C7
3497 C8
3498 C4
4470 C7
+13V
B
B
VlotAux+50V
5471 D7
5472 B7
6470 C8
6476 C6
7471 C4
9471 D7
9472 C7
*
2473
7471
TDA8359J
100n
6470
VlotAux+5VA
8
3
6
*
BAV99
C
VOG
VP
VFLB
Vguard
C
5V
2476
3495
GUARD
5V
A2-65
22K
2n7
-0V3
INPUT/FEEDBACK
A
F3
0222
F1
1:1
5471
7
1
Vdrive+
1V
1
VI+
VOA
7V
*
A6-19
25uA
2
COIL
9471
D
F4
VERTICAL
D
DEFLECTION
F2
R
VM 9
COIL
6V
Vdrive-
1V
2
VI-
A6-20
B
R
R
VOB 4
3479
6V
2K7
*
*
*
E
E
GND
5
0V
REGION
NAFTA/LATAM
NAFTA/LATAM NAFTA/LATAM NAFTA/LATAM
PHILIPS
TUBE
PHILIPS
LG PHILIPS
SMGK
TYPE OF TUBE
21RF
21RF
27V/29"
27RF
ITEM
2472
F1
F2
F3
F4
10N
150N
150N
150N
SM 470K
3R9
3R9
2R2
1R5
-
6U8
3470
SM 270K
SM270K
SM 330K
F
3471
6R8
3R9
3R3
F
3472
6R8
6R8
3R3
3473
3R9
6R8
3R3
3480
-
1R5
1R5
500mV / div DC
5ms / div
500mV / div DC
5ms / div
10V / div DC
5ms / div
5V / div DC
5ms / div
4470
SM JUMPER
-
-
5471
3U3
6U8
3U3
9472
YES
-
-
-
G
G
CL 26532046_025.eps
070502
1
2
3
4
5
6
7
8
9
-
340509145.181.png 340509145.182.png 340509145.183.png 340509145.184.png 340509145.185.png 340509145.186.png 340509145.187.png 340509145.189.png 340509145.190.png 340509145.191.png 340509145.192.png 340509145.193.png 340509145.194.png 340509145.195.png 340509145.196.png 340509145.197.png 340509145.198.png 340509145.200.png 340509145.201.png 340509145.202.png 340509145.203.png 340509145.204.png 340509145.205.png 340509145.206.png 340509145.207.png
L01.1L AB-2K2
43
Mono Painel: Tuner IF
1
2
3
4
5
6
7
8
9
0265 A4
0283 C2
0285 B2
1000 B3
1002 D7
1003 E7
1004 F7
2001 D3
2002 D4
2003 D5
2004 B5
2005 A5
2006 B6
2007 B6
2008 C5
2009 C8
2010 A4
3000 C3
3001 C3
3002 C6
3003 B7
3004 C7
3005 C7
3006 E5
3007 D5
A4
TUNER IF
(LATAM / NAFTA / AP)
For Europe Only
FM-RADIO ANTENNA
A
0265
A
VT_Supply
VlotAux+5V
*
1000
*
AGC
1
B
FOR ITV ONLY
FM-ANT
2
B
3003
12
6
0285
TUNER
+5V
1K5
13
9
34V5
VT
TO 0282
FOR EMC ONLY
14
MT
10
I4
FM
OF
3008 D5
3009 D6
3010 D3
3011 D4
4001 D5
4002 F7
4003 E6
4004 E7
4005 E6
4006 E5
4011 F7
4012 G7
5001 B6
5002 C5
5003 F8
6001 A5
6002 C6
6003 C6
6004 E5
6005 E6
6006 F4
6007 F4
7001 F5
7002 F6
9001 D6
0283
15
IF
11
AS
SCL
SDA
+5V
ADC
6002
3
4
5
7
8
RES
3005
SCL
3000
6003
RF_AGC
C
C
A7-13
100R
RES
100R
A5-25
I2
I1
I3
3002
SDA
3001
100R
*
JMP
A7-14
+8V
D
FM
3010
*
*
D
A5-24
RES
*
*
*
1002
9001
1
4
VIF_1
A5-27
*
2
5
VIF_2
A5-26
*
3
E
10
*
1003
4
E
SWI
O1
*
4003
1
IN
*
5V
4004
2
ING
O2
5
GND
SEL-IF-LL_M-TRAP
*
7001
7002
8
0V
3
A7-3
RES
6006
0V
*
Tuner
*
1004
F
1N4148
F
ITEM
AP-multi
CH-multi
NA/LA/AP-NTSC
ITEM LNA (AP)
AP
NA
LA/AP-NTSC
1
4
SIF_1
6007
1002
1003
1004
3006
3008
4002
4004
5003
7001
K7257
---
K9352
K6274
10n
2K2
F072
---
---
---
---
---
1000
5001
UV1356A
TEDE9-228B
ENV56D98G3
RTEDH9-200A
UV1336
5u6
820n
A5-28
M1971
TEDH9-200A
27u
820n
1N4148
*
K9362
---
47u
47u
---
4011
2
5
SIF_2
5002
820n
A5-29
2003
3007
4001
4003
4012
6004
10n
2K2
6K8
2K2
---
---
Jmp
Jmp
Jmp
1n8
1SS356
PDTC124ET
RES
3
6K8
2K2
---
Jmp
Jmp
---
---
---
---
---
---
---
I1
I2
I3
I4
*
Jmp
Jmp
---
Jmp
1n8
G
G
1SS356
PDTC124ET
2V / div DC
20ms / div
2V / div DC
20ms / div
20mV / div DC
50us / div
1V / div DC
20us / div
CL 26532046_028.eps
070502
1
2
3
4
5
6
7
8
9
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