Service Manuals, User Guides, Schematic Diagrams or docs for : Philips Audio MC-20 MC-30 service
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MC-20, MC-30
A01-554
Product Service Group CE Audio
Service Information
Already published Service Information :
From week 0138 onwards, a new Electronics Tape Deck Module ETF-8 is used
instead of ETF-6 module.
For servicing the new ETF-8 module, please refer to the attached pages.
ETF-8 SD MODULE
Top View .................................................................. 11-2
Bottom View ............................................................. 11-2
Tape Deck Electronic and Wiring ............................. 11-3
Circuit Diagram ........................................................ 11-4
Layout Diagram ...................................................... 11-5
Adjustment Table .................................................... 11-6
Exploded View - Module ........................................ 11-6
Exploded View - Mechanism ................................... 11-7
Mechanical Partslist ................................................ 11-7
Electrical Partslist ................................................... 11-8
2001-09-01 314078522830
PCS 107 341
11-2
TOP VIEW
BOTTOM VIEW
PCS 107 342
11-3 11-3
TAPE DECK WIRING TAPE MECHANISM ELECTRONICS
To ETF Board
Connector 1760 (8P) 08FESTVKNA
Motor
REC REC Pin No.
RVS CRO FWD 1. Vcc 12V
2. Photo Out
3. Gnd
Photo Interrupter 4. Mode Switch
Mode Switch 5. Solenoid
6. CrO2 Switch
CrO2 Switch
7. Rec Switch (FWD)
Rec Switch (FWD)
8. Rec Switch (RVS)
PCS 107 Rec Switch (RVS)
470R
Tape Deck
Motor
Solenoid
Red Mechanism Head Wires Soldering
Grey Blue
White Yellow
Head wire connector pcb
Head (05FESTVKNA)
1
Pin No.
1. +L ch (White)
To ETF Board Rec/Pb Head 2. Gnd (Grey)
Connector 1710 (5P) 3. +R ch (Red)
Erase Head 4. E Head (Blue)
5. E Head (Yellow)
PCS 107 343
11-4 11-4
CIRCUIT DIAGRAM - ETF8 SD
1 2 3 4 5 6 7 8 9 10 11 12 13 14 1701 D14
1703 A1
3768 D13
3769 H5
1706 A1 3770 I2
1710 F1 3771 I3
+MOTOR 7612 1760 A14 3772 I3
EH-B 1703 BC807-25
11.8V 2621 A3 3774 H3
11.9V +MOTOR
+MOTOR 11.9V +MOTOR 2622 A3 3775 I3
2
P 2623 A2 3776 I2
7614
GND_M P 2625 C5 3777 I2
1
11.0V BC807-25 sol_supply (11.8V)
TO / FROM 2701 D2 3778 H1
A A
470R
100K
3628
3630
2623
470p
2622
470p
2621
1n
M +5V MECHANISM 2702 E3 3779 G3
SHIFT REGISTER 2703 E13 3780 G2
8
FE-BT-VK-N 1706 FE-ST-VK-N
VSS 7 0.0V (11.0V) 2704 F12 3781 G2
STROBE CR_BIAS 1760
1N4003
STROBE O3 2709 E7 3786 I5
100K
3624
3626
1
6612
10 Os'
1K
7 1.1V
3611
3609
3607
Vcc12V 2710 G7 3789 I4
2K2
2K2
2K2
DATA
DATA 11 MOT 5.0V 2
6
O7 PHOTO
2711 D9 3790 D9
CLK 9 Os 0.7V
CLK SOL 0.0V 3678 3 2712 I8 3791 G9
5
STR 7610 O5
7618 GND_M
1 13 BC847B M 2713 D9 3792 F6
GND_P P 47K 4
4 HEF4094BT MUTE_OFF
0.0V MODE 2714 I8 3793 F5
+5V O6 2715 D8 3794 F5
3 +5V 12 5
D sol_supply
2 2716 H8 3795 F5
AD1 O4 M
B 2 14
0.0V
(1.1V)
6 CR_IN B 2717 D5 3796 E10
CR_IN
1
CR_SEL (0.7V) 7 2718 E5 3797 C11
CP O0 3680 REC_FWD
3 4 7620 2719 F4 3800 G11
REC 5.0V 8
TO / FROM O1 47K BC847B REC_RVS 2720 F4 5701 G2
120K
3608
3612
3610
27K
56K
5
+5V 2721 D7 5703 I1
FRONT BOARD BIAS_OFF
0.0V
O2
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