Combi Board Circuit Diagram; Combi Board (For Production After Week 0303) - Philips MC-M250 Service Manual

COMBI BOARD - CIRCUIT DIAGRAM
(For production after week 0303)
1550 A1 2502 B10 2512 F10 2521 C12 2530 G14 2552 B2
1551 B1 2503 F13 2513 C10 2522 G12 2531 C13 2553 B1
1552 B2 2505 B8 2514 G10 2523 C12 2532 G13 2554 G4
1553 C2 2506 D8 2515 D11 2524 G12 2533 C14 2555 H3
1554 D2 2507 B9 2516 F11 2525 C14 2534 G14 2557 G6
1555 E2 2508 D9 2517 D11 2526 F14 2535 B8 2558 I6
1556 G2 2509 C9 2518 E11 2527 B13 2536 E8 2559 I6
2500 A7 2510 E9 2519 E12 2528 H13 2550 A2 2560 I7
2501 B9 2511 C10 2520 E12 2529 C14 2551 A2 2561 F5
1 2 3
COMBI BOARD
Source Selection / Sound Control part
2550
A
22n
* 4595
1550
4
T551 5505 3551
2
33K
T552 5506 3552
1
AUX
33K
* 4596
3
2553
B *
22n
1551
(MC148)
T553
7
-CMOS -8V2
1552
T556 3556 6K8
6 6
TAPE_R
T554
9551
5 5
+5V6 +12V +12V_AF
T555
4 4
TAPE_L
3555
6K8
3 3
GND
REC_R
T558
C 2 2
REC_R
from
T557
1 1 3585, 3586
REC_L
REC_L
FE-BT-VK-N FE-BT-VK-N
1553
T559
2
+Motor
9553
+12V
1
GND
EH-B
D
1554
T561 3557
1
CD_L
5501 18K
2
GND
* 4591
T562 3558
3
CD_R
T563 5502 18K
4
CD_+5
+5V
*
4592
5503
5
GND
*
4593
T564 5504
6
+SERVO
* 4594
+CD_MTF_MOTOR
E
FE-BT-VK-N
1555
T565 3561
1
LEFT
5550
T567 10K
2
GND
470n
T566 3562
3
RIGHT
5551
T568 10K
4
VCC
470n
T569
5
TU_EN / MPX
T570
6
F 9555
TU_DATA
T571
7
TU_CLK
T572
8
/STEREO
FE-BT-VK-N
1556
T573
16
+RDS
+5V6_S
15
TU_EN / MPX
14
G
TU_DATA
13
TU_CLK
12
/STEREO
11 T574
STANDBY
BKLT_ON
T575
10
AU_STR
T576
9
AU_DATA
T577
8
AU_CLK
MUTE
7 T578
H
MUTE
T579
6
PWM PWM to 6500
5
D_GND
T580
4
+5V6 +5V6
T581
3
/PWRDWN
T582
2
/BKLT
T583
1
+12V
+A
I
FE-BT-VK-N
PWRDWN
from
Supply Part
1 2 3
FOR NON /22 VERSIONS
*
11 - 6
2563 B5 2573 A4 3509 C9 3518 E12 3527 B12 3536 G13
2564 D5 3500 A7 3510 E9 3519 E12 3528 H12 3537 A13
2565 B6 3501 B9 3511 C10 3520 E12 3529 C12 3538 I13
2566 D6 3502 B10 3512 G10 3521 E13 3530 G12 3539 B14
2567 B6 3503 B10 3513 D11 3522 E12 3531 C12 3540 H14
2568 D6 3505 C8 3514 F11 3523 D12 3532 G12 3541 A14
2569 B7 3506 E8 3515 D11 3524 F12 3533 C13 3542 I14
2570 D7 3507 C8 3516 E11 3525 B11 3534 G13 3543 B14
2571 G7 3508 E8 3517 D12 3526 H11 3535 C13 3544 H14
4 5 6
SOURCE SELECTOR
+VS
from 7552
+VS
A1 A0
2573
100n 16 9 10
VDD
MSB LSB
LOGIC
7551
HEF4052BP
3577 7555
BC847B
470R
TAPE_L 1 LL
2567
2565
TUNER_L 5
LH H
100p
5553
AUX_L 2 HL 3 L
*
CD_L 4 4575
HH
TAPE_R 12
LL
14 LH H
TUNER_R
5554
15 13 +VS
AUX_R
HL L
*
4576
11 HH
CD_R
VSS VEE
7556
8 7 6 3578
BC847B
T550 470R
2568
2566
100p
2u2
Source Selection
Logic Table
Source A1 A0
TAPE 0 0
AUX 1 0
TUNER 0 1
CD 1 1
REC_R
to 1551 or 1552
REC_L
+12V_AF 7553
BC327-40
CD_+5 +5V6
(forseen only)
CD on = Low
3563 T585
+5V6_S +VS
100R +5V6
3568
7550
+12V
BC817-25
1K5
T584
BACKLIGHT
4 5 6
3545 C13 3556 B2 3566 I4 3579 A6 3588 D7 4582 F10
3546 G13 3557 D3 3568 H5 3580 D6 3589 G7 4583 D13
3547 B15 3558 D3 3572 G7 3581 B6 4575 B5 4584 F13
3548 H15 3559 E3 3573 H8 3582 D6 4576 C5 4585 D14
3551 A3 3560 E3 3574 F6 3583 B7 4577 B8 4586 F14
3552 A3 3561 E2 3575 C5 3584 D7 4578 D8 5550 E3
3553 B3 3562 F2 3576 C5 3585 C7 4579 C9 5551 F3
3554 B3 3563 G4 3577 B6 3586 E7 4580 E9 5552 C2
3555 C2 3565 I4 3578 D6 3587 B7 4581 D10 5553 B5
7 8 9
ELECTRONIC VOLUME CONTROL
T500
3500
Vc to 7500 pin 14
820R
+VS
2569
3587
3502
T595 3K9 T501
2u2 1u
2K2
*
2505 2507
100p 100p
7501 3507 7503
ON4986 ON4986
15R
*
4579
2509 5557 T503
22p
2570
3588
1u T596 3K9
*
2506 2508
100p 100p
3508
7504
ON4986
15R
7502 *
4580
ON4986
2510 5558 T504
22p
3589 2571
220R
470n
T586
3572
7552
10K
16
HEF4094BP
SRG8
15
EN1 uP Port Extension
1
STB
3
LOGIC TABLE
2 T587
4
Sound features
D 1 JAZZ
T588
5
DSC DBB DBB
POP
T589
6
INCR off off 0
T590
7
(flat)
BASS on 1
T591 3573
14 CD
off 1
Rock
T592 1K
13
DBB on 1
T593
12
A0 off 0
Jazz
T594
11
A1 on 1
9
off 1
Pop
10
on 1
8
7 8 9
11 -6
5554 C5 5563 D14 7500-F D10 7509 C12 7553 F5 T501 B9
5555 B8 5564 F14 7501 C8 7510 G12 7555 B6 T503 C9
5556 D8 6500 B10 7502 E8 7511 B13 7556 D6 T504 E9
5557 C9 6550 I4 7503 C9 7512 H13 9551 C2 T550 D4
5558 E9 7500-A F10 7504 E9 7513 B13 9552 C2 T551 A2
5559 D10 7500-B F11 7505 D12 7514 H13 9553 D2 T552 A2
5560 F10 7500-C F13 7506 F12 7550 H4 9554 E3 T553 B2
5561 D13 7500-D D13 7507 C12 7551 B4 9555 F3 T554 C2
5562 F13 7500-E D11 7508 G11 7552 G7 T500 A8 T555 C2
10 11 12
DIGITAL SOUND CONTROL (DSC)
POP JAZZ
PWM
3503 6500
470R from 1556
1N4148
2521 3529
7507
27K
1n5
BC847B
2513
2523
47p 3531 3533
7509
3511 680p 27K 33K
BC847B
100K
Vc
* *
4581 4583
14
12
5559 3523 5561
13 Vc
33K
7500-E
7
HEF4069UBP
7500-F BC847B HEF4069UBP
14
HEF4069UBP 2515 3513 7505
11 10
15K
10n
7
2517 3515 3517
33K 100K
1n5
2519
220p
INCR
2520
220p
2518
3516 3518
1n5 33K 100K
Vc
Vc
14
2516
3514 4
3
7506
10n 15K
7500-A 7500-B
7 BC847B
HEF4069UBP HEF4069UBP
HEF4069UBP
14
5560 3524 5562
1 2
* 33K *
4582 4584
7
BC847B
3512
7510 2524 3532 3534
100K
27K 33K
680p
2514
47p
BC847B
7508 2522
3530
1n5 27K
Control lines
POP BASS JAZZ
0 1 0
0 1 0
POP JAZZ
0 1 0
0 0 0
0 1 1
0 1 1
1 1 1
1 0 1
10 11 12
T556 B2 T566 F2 T575 H2 T584 I4 T593 I8
T557 C2 T567 E2 T576 H2 T585 G4 T594 I8
T558 C2 T568 F2 T577 H2 T586 G7 T595 B7
T559 D2 T569 F2 T578 H2 T587 H8 T596 D7
T561 D2 T570 F2 T579 H2 T588 H8
T562 D2 T571 F2 T580 H2 T589 H8
T563 E2 T572 F2 T581 I2 T590 H8
T564 E2 T573 G2 T582 I2 T591 H8
T565 E2 T574 G2 T583 I2 T592 I8
13 14 15
A
BASS DBB
BC847B
7511
2527 3539
22K
10n
B
BASS_ALC
7513 3547
BC847B
150K
from
Amplifier Part
2529
100n
2531 2533
C
100n 47n
3535
100K
2525
Vc 47p
*
4585
14
5563 L
9 8
to
7500-D
7 D
Amplifier Part
E
Vc
2503
7500-C 22n
F
14
5564 R
5 6
to
*
4586
7
Amplifier Part
2526
47p
3536
100K
2532 2534
G
100n 47n
2530
100n
BASS_ALC
3548
7514
150K
from H
BC847B
Amplifier Part
BC847B
2528 7512 3540
22K
10n
I
BASS DBB
13 14 15