Philips 32PW9618 Service Manual page 48

Circuit Diagrams and PWB Layouts
Large Signal Panel: Frame Deflection E/W Drive
1625 B13 2481 F9 2620 C9 2635 A8 3419 D3 3472 E12
1627 C13 2482 G10 2621 D10 2642 B11 3420 C3 3474 E13
1693 F4 2487 A13 2622 A10 2653 D10 3421 D2 3475 F11
2403 D3 2490 E8 2623 C3 2656 B2 3422 D3 3476 E12
2404 D2 2491 F12 2624 C11 2657 B3 3449 F2 3478 F11
2448 B12 2493 G4 2625 C10 2659 C2 3455 C2 3479 F10
2451 F2 2497 E12 2627 C11 2660 F11 3456 D2 3480 F11
2454 F3 2498 F14 2628 A8 2661 C8 3457 C4 3481 F10
2457 E4 2499 E13 2629 C12 2662 C3 3458 E3 3482 F9
2458 E2 2603 C6 2630 B9 3403 A13 3459 E2 3483 F9
2466 D12 2604 C9 2631 B9 3412 D5 3466 E12 3484 E8
2480 F9 2605 C5 2633 D7 3418 E9 3467 A12 3485 F7
1 2 3
E/W DRIVE FRAME DEFLECTION
A
8Vb
A33
A8
F605 3
FRAMEDRIVE+ 8
B
1
2
7440-A
4 LM358N
F607
A34
A8 I628
FRAMEDRIVE- 3658 3657
F610 22K 22K
2662 2623
3664
15K
A33 6n8 2n2
C PM3394B
RES
RES
F613
8Vb
8Vb
500mV / div DC
I675
2403
2ms / div
3421
I644 7440-B
A34 1n
5 8
PM3394B
470K LM358N
3422 I645
7
I605
3K3
6
D
4
500mV / div DC
I678
2404
3419
2ms / div
7455
470K
1n
PMBT2369
A8,A3
2458 I679 I650
3459
0V5
F628
470R
560p
HFB_X-RAY-PROT
E
F614
A35
PM3394B
500mV / div DC
A8
I696
2ms / div F623
EW-DRIVE
A36
PM3394B
I697
F
A49
I604 3449
F601
+11D
200mV / div DC 8Vb
10us / div
100R
A37
PM3394B
F626
I698
500mV / div DC
G
2ms / div
NOTE BRIDGECOIL PROTECTION (5422) IS TRIGGERED VIA EW
About DC-voltages measured:
8204 000 8276.3
EM6E
3486 E3 3611 B3 3631 B7 3643 B8 3658 C2
3487 F3 3620 D11 3632 C7 3644 A12 3659 C2
3488 E9 3621 D11 3633 B7 3645 A11 3660 B6
3489 F10 3622 D11 3634 C9 3646 C12 3661 C12
3490 E5 3623 D10 3635 A9 3647 C12 3662 B6
3491 F12 3624 C11 3636 A9 3648 D11 3663 C13
3492 E8 3625 C12 3637 A9 3652 A12 3664 C2
3493 E8 3626 C12 3638 B8 3653 C11 3665 B12
3495 F13 3627 C12 3639 C6 3654 F4 3688 G10
3496 F8 3628 A7 3640 A7 3655 B2 3690 C7
3497 D13 3629 C12 3641 C6 3656 B2 5467 F10
3610 B5 3630 B8 3642 B8 3657 C3 5620 B11
4 5 6
MCL4148
6627
COLD
HOT
8Vb
5621
I695
S13974
I694
3660
5 6
5K6
3 A36 3
8
I602
A35 1
1 10
I621
2
7450-A
4 LM393D
GND-SUP
I693
I647
I627
6614
8Vb 8Vb
A39
BAT254
7614
BC847B
7612
I643
BC847B
I646
7441
GND-SUP
8Vb
BC857B
I649
0V
I651
0V
RES
7483
I654 0V7
TCET1102
1 4
0V
A37 7V9 2 3
I614
7450-B
5 8
1 5
7V8
LM393D
0V7
7 7482
TCDT1102G
6
0V6
2 4
4 A38
I638
I690
3654 TO
1693
1693
4K7 COLD
HOT
LINE DEFLECTION REPAIR KIT: 3122 785 90330
VDAF
Caution item 3400 used in this chassis is different
from the part supplied in the kit.
See partlist for correct value and ordercode.
(SEE DIAGRAM A3 ALSO
A38 A39
PM3394B PM3394B
)
NORMAL ..V.
STANDBY (..V.)
200mV / div DC 2V / div DC
10us / div 10us / div
7. 48
5621 A5 6493 F12 6623 A11 7450-B F5 7641 A12 F602 A9
6405 A12 6494 F12 6624 C12 7455 D3 7652 B13 F603 A11
6442 B12 6499 F14 6625 A7 7480 F10 7653 F13 F604 A11
6455 E3 6614 C5 6626 A7 7482 F6 7654 E12 F605 B3
6456 F3 6615 E5 6627 A6 7483 E6 9405 F4 F606 B13
6457 F2 6616 C5 6628 C13 7486 F9 9481 F5 F607 B2
6458 G3 6617 B7 7440-A B3 7487 F8 9482 F7 F608 B11
6480 E10 6618 A7 7440-B D3 7611 A7 9483 E7 F609 B13
6481 F9 6619 C12 7441 D3 7612 D6 9499 F13 F610 C2
6482 F8 6620 A10 7442 D13 7613 A9 9620 B10 F611 C13
6483 F10 6621 A10 7443 A13 7614 C5 9622 B11 F612 C13
6491 E13 6622 B10 7450-A B4 7620 B10 F601 F2 F613 C2
7 8 9
I672
I673
MCL4148 MCL4148
+13V-LOT I600
6626 6625
3628
A50
100R +8V-S
F602
I623
RES
8V2
1
I648
3
1V9
I610
GND-SUP
7613
7611
2
6618
TL431CZ
0V4
BC847B I618
I619
MCL4148
GND-SUP
6617
330K
I641
MCL4148
I608 3643
I629
GND-SUP I674
I625
I624
A41
GND-SUP
F629
3632 3690 3634
39K 1K I631 39K
RES
I642
+8V-S
+141V
EW -
FRAME
I603
5V7 I656
7486
GND-SUP
A45
BC847B
I657
I658
BC847B
I662
I665
7487
I666
1V
I607
GND-SUP GND-SUP GND-SUP
A40 A41 A42 A43 A44
PM3394B PM3394B PM3394B PM3394B
200mV / div DC 200mV / div DC 20V / div DC 10V / div DC 200mV / div DC
2ms / div 2ms / div 2ms / div 2ms / div 2ms / div
F614 E3 F628 E2 I610 A9 I622 A13 I634 C12
F615 F12 F629 C7 I611 A12 I623 A7 I635 C12
F616 D10 I600 A9 I612 A13 I624 B8 I636 C10
F617 D11 I601 A11 I613 A10 I625 B9 I637 C11
F618 D11 I602 B5 I614 F4 I626 B11 I638 F4
F621 E14 I603 E8 I615 A11 I627 C5 I639 C10
F622 E13 I604 F2 I616 B12 I628 C3 I640 C12
F623 F2 I605 D3 I617 B13 I629 B8 I641 B7
F624 F11 I606 A13 I618 A9 I630 D13 I642 C9
F625 F12 I607 F8 I619 A9 I631 C8 I643 D4
F626 G3 I608 B8 I620 B11 I632 C11 I644 D2
F627 F11 I609 A11 I621 B4 I633 C11 I645 D3
10 11 12
+141V
PROTECTION CIRCUIT
FRAME DEFLECTION
I601
6405
I669
BZX79-C47
F603
13V7
6621 BC847B
-3V6
7641
I615 I611
BYD33D I609
6620 2622
F604
BYV27-200 100u
I613 3652
100R
9620 A42
I616
7620
TDA8177 2 6 I620
3
VSUP VSUPO FLYB
GND-SUP
A40 FLYBACK
GND-SUP
GENERATOR
I676
1 IN- A43
I626
5620
POWER OUT 5
AMPLIFIER
90R
F608
7 IN+
THERMAL
PROTECTION
GND
I664
4
I633 I634
I677
-15V2 I635
I636 I637
2625 2624
470n 470n I632
I640
I639
-15V-LOT
GND-SUP
F616
18K *
* *
21V7
3623 I670
2653
+141V
2466 21V7
3n3
F617 F618
100n
3466
I671
GND-SUP
4K7
I652
I653
22V5
7654
BC857B
22V7
I655
GND-SUP
GND-SUP
A47
7480
I660
STP3NB60
D
A48
3481
G I661
6493
0V3
F624 3478 I692 3475 F615
S F625
100R
I663
BAT254
100R 4K7
A46
I689
I668 F627
GND-SUP
GND-SUP GND-SUP GND-SUP
GND-SUP
A45 A46 A47
PM3394B PM3394B PM3394B PM3394B
1V / div DC 500mV / div DC 50V / div DC
10µs / div 10µs / div 10µs / div
I646 D5 I658 F8 I670 D12 I692 F11
I647 C6 I659 F13 I671 E12 I693 B5
I648 A7 I660 F10 I672 A7 I694 A6
I649 D4 I661 F10 I673 A6 I695 A6
I650 E3 I662 F9 I674 B9 I696 F3
I651 E5 I663 F10 I675 D3 I697 F3
I652 E12 I664 C11 I676 B12 I698 G2
I653 E10 I665 F9 I677 C12
I654 E5 I666 F7 I678 D2
I655 E10 I667 F13 I679 E2
I656 E9 I668 F10 I689 F10
I657 F7 I669 A12 I690 F4
13 14
ARC-PROT
BC847B
7443
GND-SUP
A
(SEE NOTE)
GND-SUP
A1,A3
I606
3403
SUP-ENABLE
I612
100R
I622
I617
7652
BC847B
B
GND-SUP
F606 F609
1625
EH-B
1
FRAME
2
DEFLECTION
3
COIL
F611
1627
C
EH-B
1
F612
2
NOT
3
USED
A44
-14V2 I630 3497
ARC-PROT
D
7442 33K
BC857B
E
F621
6491
F622
1PS76SB10
RES
I659
21V6
3495
7653 F
33K I667
BC847B
G
GND-SUP
A48
PM3394B
500mV / div DC CL 36532008_022.eps
10µs / div 080503