Servo Board: Drivers (Diagram 4) - Philips VAD8031 Service Manual

Electrical Diagrams and Print-Layouts
Servo Board: Drivers (Overview)
1 2 3 4
A D3V3
1400
I426
SL+
B
9 I440
SL-
8
7
COS-
6
SIN+
5
COS+
4
SIN-
3 I439
C
2
1
D
E
Left page
F
G
+5V
19.4V
2415
22n
7402
1401
SZA1015
H 1 I420 3425 2412
HALL+
I423 100n
2 W- 82R
I425
3 W+ BOOSTER
I427
4 V+ 6 FG
5 I428 3412
HALL- 30 WN
I429 82R
6 U+
29 WP
I431
7 V-
28 VN
I I433
8 U- 27 VP
I435
9
UCOIL 26 UN
I436
10 VCOIL
25 UP
I415
BIAS_VH
I437 BIAS
11 WCOIL
2
I417
2411
100p 32 COSC
I418
3421
47K 3 ROSC
2.1V
20
J
17
15
VSSA
1
0.5V
K
1 2 3 4
VAD 8031
5 6 7 8 9
10K I406
I407 3406
TRAY-SW
3403 +5V
1K
2421
4n7 2401
1.6V
I403
3405 3404 100n
TOSTOCEN 3 8
10K 10K I405 1
TRAYSW
2406
2
SL+
LM358D
4
82n
SL-
7401-A
1.6V
D3V3
I400 I401 I402
3400 3401
REFCOS
10K 10K
+5V 3446
2405 1K2
1.6V
100n
COS- 5 8
I408
7
COSPHI
1.6V
6 7400-B
COS+
LM358D
4
0.7V
3407
I409
3461
56K
1K2
I410 I411
3408 3409
REFSIN
10K 10K
+12V
+5V
1.6V
SIN+ 3 8
I413
1
SINPHI
1.6V 2 7400-A
SIN-
4 LM358D
1.4V
3410
I414
56K
D3V3
T1
I455
DRIVER-ON
I424
I457 I459
4427
FO-
+12V 3474
S1V65
12K
VFOO-
I465 I467
FO+ 4419
13
2443
22u
3477
16
S1V65
12K
22
2442 VFOO+
22u
100n 2417 I470
SL 4422
3479 I485
PWM MOTOR-ON
VSLOO
START
23
I416 10K
+12V
I489
3481
3495 TRAY-INOUT
VDD
24
3496 1K2 1R I473
S1V65
1K2
IC1 3497
9
I475
TRAY-ONOFF
IC2 1K2
3498
31
NC 1K2
ADC 3499
18
1K2
VMOTO1O
I484
0.9V
3494 4402
MOTO1
D3V3
470R
Remark: DC voltages are measured in DVD+RW playback
5 6 7 8 9
7. 17
10 11 12 13 14
{AUXPW,SERVO-COMM,SERVO-MEAS,TR+,TR-,HIGHPOWER,FO+,FO-,SL,RA,DRIVER-ON,FOC-,FOC+,RAD,TRAY-SW,TRAY-INOUT,TRAY-ONOFF,VFOO-,VFOO+,VRAOO,SL-,SL+,VSLOO,REFCOS,COSPHI,REFSIN,SINPHI,TOSTOCEN,TRAYSW,MOTOR-ON,T1,VMOTO1O,MOTO1}
I404
S1V65
FOC+
I441 I442
3440
1K2
2.3V
3444
11
2
1.6V 6K8
1 I444 I451
3447
SERVO-MEAS RAD
LM324D
4
3
7405-A 6K8
2.3V 3452
S1V65
+12Va 1K2
3454
2.3V
1K2
I446
7405-B 3457
4 5 4406 4407 FOC-
LM324D
7 I447 6K8
3462
1.6V 6
11
6K8
2.3V
SERVO-MEAS
3464
1K2
I458 I461
I452
5405
+12Va
I477 2434 I478
DRIVER-ON
2n2
VRAOO
I480 I481
2435
I460
RA
2n2
7409
3472
BA5995FM
9 10 19 28
S1V65
12K
20 STBY1
STBY
CH1/3/4
OPOUT3 22
-
23 OPIN3- VO3- 18
-
+
24 OPIN3+ -
+ LEVEL
+ SHIFT
VO3+ 17
+
-
OPOUT4 25
I464
26 OPIN4- - VO4- 16
-
+
27 OPIN4+ + -
LEVEL
+
SHIFT
+ VO4+ 15
-
4
OPOUT1
I469
3 OPIN1- - VO1- 13
SL-
- +
2 OPIN1+ + -
LEVEL
+
SHIFT I471
+ VO1+ 14 SL+
- 2438
6 MUTE MUTE
100n
CH1
I472 3482
- VO2- 11 TR+
5 IN2 +
- 1R
LEVEL
1 BIASIN +
SHIFT
12 I474
+ VO2+ TR- AUXPW
-
7 STBY2 STBY
S1V65
CH2
+12Va
2441
21 8 29 30 I486
3480
100n
10K
3483 7405-D
12
4
LM324D
I487
10K 2.7V
14
3484
1.6V
13
11
10K
2.7V
3486
10K
I488
10 11 12 13 14
15 16 17 18 19
TO CENTAURUS/DEBUG-AND-FLASH
OPU /CENTAURUS/POWER-CONN-AUDIO/DEBUG CONN
3445 I443
S1V65
+12Va
1K2 2.3V
3450 7405-C
4404 4405 10 4
LM324D
I445
6K8 3451
8
3453 1K2
2.3V 9 1.6V
11
6K8
3460
I448 1K2
4413
220R
5406 I453
+12V
I476
7408
BA5995FM 9 10 19 28
3489
20 STBY1 STBY
CH1/3/4
27R
OPOUT3 22 I479
3491
I456
23 OPIN3- - VO3- 18 27R
-
+
3471
4415 24 OPIN3+ -
+ LEVEL
+
SHIFT I463
I462 27R
+ VO3+ 17
3490
-
25 27R
OPOUT4
26 OPIN4- - VO4- 16
- +
27 OPIN4+ + -
LEVEL
S1V65
+
SHIFT I468
+ VO4+ 15 4416
-
OPOUT1 4
I482
3475 OPIN1- -
3 VO1- 13 Right page
-
+
10K 2 OPIN1+ -
+
LEVEL
+ SHIFT
VO1+ 14
+
-
I483
3476
6 MUTE MUTE
+5V
CH1
10K -
VO2- 11
IN2
5 +
-
LEVEL
1 BIASIN + SHIFT
S1V65 VO2+ 12
+
-
7 STBY2 STBY
CH2
1401 Pin 9/10/11
21 8 29 30
A: DC, 5 V/Div, 500us/Div
15 16 17 18 19
20 21
I401 B6
1400 B2
1401 H2 I402 B6
2400 C6 I403 B8
2401 A9 I404 B10
2403 C5 I405 B9
A
2405 C6 I406 A7
2406 B9 I407 A6
2407 A7 I408 C7
2409 E6 I409 D6
I410 E6
2411 J4
2412 H3 I411 E6
2413 K5 I413 F7
2414 G5 I414 F6
2415 H4 I415 I4
B 2416 I6 I416 I7
2417 I6 I417 I4
2418 J2 I418 J4
2419 J3 I419 K5
2420 J2 I420 H2
2421 A9 I421 K5
I422 H3
2430 E11
2431 E10 I423 H2
2432 E16 I424 G7
2433 E16 I425 H2
2434 F11 I426 B3
2435 F11 I427 H2
C 2436 F18 I428 I2
2438 I12 I429 I2
2440 J12 I430 H5
I431 I2
2441 J14
2442 I6 I432 G5
2443 H6 I433 I2
2444 K7 I434 H4
3400 B6 I435 I2
3401 B6 I436 I2
3403 A6 I437 I2
3404 B9 I438 H6
3405 B8 I439 C2
D
I440 B3
3406 A6
3407 D6 I441 C10
3408 E6 I442 C11
3409 E6 I443 C16
3410 F6 I444 C11
3411 I7 I445 C17
3412 I3 I446 D12
3418 H3 I447 D11
3420 K5 I448 D16
3421 J4 I451 C11
3422 K5 I452 E10
I453 E16
E 3423 G7
3425 H3 I455 G9
3440 C10 I456 F18
3444 C11 I457 G9
3445 C16 I458 E10
3446 C10 I459 G9
3447 C11 I460 F14
I461 E11
3450 C16
3451 C17 I462 G15
I463 G17
3452 C11
3453 C16 I464 H12
I465 H9
3454 D11
F
3457 D11 I467 H9
3460 D16 I468 G17
3461 D10 I469 I12
3462 D11 I470 I9
3464 D10 I471 I12
SERVO-COMM
3471 F19 I472 I12
3472 G14 I473 J9
3473 G9 I474 J12
I475 J9
3474 H9
3475 H15 I476 E18
I477 F11
3476 H15
3477 H9 I478 F12
G
3478 I9 I479 F18
3479 I9 I480 F11
3480 J13 I481 F12
3481 I9 I482 H15
3482 I13 I483 H15
I484 K7
3483 J13
3484 K13 I485 I10
I486 J13
3485 J10
3486 K14 I487 K14
3487 D7 I488 K13
3488 F7
3489 F19
H
3490 G19
3491 F19
3492 B10
3493 K5
3494 K6
4400 B12
4402 K7
4403 C12
4404 C15
4405 C15
4406 D12
I
4407 D13
4410 D13
1400-2,3,4,6,7,8
4411 D13
4413 D16
4415 G15
4416 G18
4417 G19
4419 H9
4422 I9
4427 H9
5400 H6
5405 E10
J
5406 E15
7400-A F6
7400-B D6
A: DC, 500mV/Div, 2ms/Div 7401-A B9
7402 H4
7405-A C10
7405-B D10
7405-C C16
7405-D J14
7408 F15
K
7409 G10
I400 B6
TR 15005_001
100903
20 21