Philips Mcm 9 Service Manual

8-5
 
8-5
ELECTRICAL PARTS - MAINS BOARD1104 2822 031 01494 FAN 12VDC 0.8W 3100RPM 
1200 2422 086 10963 FUSE RAD LT 5A 250V IEC  A
1202 4822 071 51252 FUSE 1.25A
1204 4822 265 31015 AC POWER SOCKET
1205 2422 086 10786 FUSE RAD 372 LT4A 250V
1207 2422 086 10786 FUSE RAD 372 LT4A 250V
1210 9940 000 02118 POWER RELAY 2P 12VDC 16A
3211 4822 052 10478 4R70 5% 0,33W
3215 4822 052 10109 10R00 5% 0,33W
3231 4822 052 10101 100R00 5%  0,33W
5001 3103 308 30780 TRAFO MAINS P2001 2X45W
5203 2422 549 45157 TRAFO...

ETF8 TAPE MODULE
9-19-1
CONNECTORS ASSIGNMENTS:
CONNECTOR 1701INTERCONNECTION TO AF BOARD
1 REC-L Record input left
2 REC-R Record input right
3 GND A AF  Ground
4 TAPE-L Playback output left
5 +12V D.C. supply (+12V) for AF electronics
6 TAPE-R Playback output right
7 -CMOS Negative d.c. supply (-9V) for controlling JFET J111
CONNECTOR 1703INTERCONNECTION TO AF BOARD
1 GND M Motor Ground
2 +MOTOR D.C. supply (+12V) for tape deck motor & solenoid
CONNECTOR 1706INTERCONNECTION TO FRONT BOARD
1 CR_IN Deck...

9-2
9-2
11
To Autoreverse
Rec/Pb head Red
Black
White
Blue
Yellow
Red
BlackWhiteBlue
Yellow
Erase headRec/Pb head
Non-Autoreverse version
Autoreverse version
CROREC 
RVSREC 
FWD
Tape Deck 
Motor
To ETF8 Board
Connector 1760 (8P)
TAPE DECK WIRING
To ETF8 Board 
Connector 1710 (5P)
TAPE MECHANISM ELECTRONICS
1.   Vcc 12V Pin No. 08FESTVKNA
Mode Switch
CrO2 Switch
Rec Switch (FWD)
Rec Switch (RVS)
Solenoid Motor
470R Photo Interrupter2.   Photo Out
3.   Gnd
4.   Mode Switch
5.   Solenoid
6.   CrO2 Switch
7....

9-39-3
^ For Auto-reverse version only
* If high frequencies are not within limits, decrease bias and re-measure.
If distortion is too high, increase bias and re-meaure PLAYmV-meter
check
PLAYBACK
FREQ. RESPONSE
TAPE ADJUSTMENT & CHECK TABLE
TEST
CASSETTERECORDER
MODEMEASURE
ONREAD ONADJUST
with
MOTOR SPEEDSBC420
3150HzPLAYfrequency
 countercheck
PLAY
PLAY FWD
PLAY REV ^W&F-meter
mV-meterleft hand screw
right hand screwmax. output level
    & left=right
WOW & FLUTTER
ADJUST AZIMUTH 
3150Hz +/- 2%
 < 0.4...

This assembly drawing shows a summary of all possible versions.  For components used in a specific version see schematic and respecive parts list.
3139 113 3455 pt3  dd wk411
3412
This assembly drawing shows a summary of all possible versions.  For components used in a specific version see schematic and respecive parts list.
3139 113 3455 pt3  dd wk411
3412
9-4 9-4
COMPONENT LAYOUTCHIP LAYOUT 

MUTE
LOGICREJECTION
NOR/CHRO
LOGICMUTE
PB/RECRIPPLE
ALCL R
(NAR)
OSCILLATOR
5 6 7 8 9 10 11 12 13 14 A
B
C
D
E
F
G
H
IA
B
C
D
E
F
G
H
I
1701 D14
1703 A1
TO / FROM
FRONT BOARD
PMBT 2907TO / FROM
MECHANISM
* - Variant Parts between AR and NAR versions : please refer to table below;
*
(AR)
3717     1K2     Jumper (4737) 3724     18K     22K
1 2 3 4 5 6 7 8 9 10 11 12 13 14
12341706 A1
1710 F1
1760 A14
2621 A3
2622 A3
2623 A3
2625 C5
2701 D2
2702 E3
2703 E13
2704 F12
2709 E7
2710 G7
2711 D9
2712 I8
2713 D9...

9-6
9-6
AUTOREVERSE (AR) TAPE MECHANISM
1 9965 000 10041 Rec/Pb Head assembly
7 9965 000 10042 Cap Pinch R
8 9965 000 10043 Cap Pinch L
9 9965 000 10044 Roller Pinch
32 9965 000 10045 Solenoid assembly
34 9965 000 10046 Motor Assembly
36 9965 000 07441 Belt-SR
37 9965 000 07442 Belt-FR
39 9965 000 10047 Flex Socket 5pin Hort.
40-2 9965 000 10048 Flex Socket 8pin Hort.
40-3 9965 000 10049 Mode Switch
40-4 4822 116 83883 470R 5% 0,5W
40-5 9965 000 10050 Spacer
40-6 9965 000 10051 Photo Interrupter
40-7...

9-79-7
NON-AUTOREVERSE (NAR) TAPE MECHANISM
MECHANICAL PARTS LIST - NON-AUTOREVERSE TAPE MECHANISM
1 9965 000 12110 Play Head
2 9965 000 02600 Erase Head
7 9965 000 10042 Cap Pinch Roller
9 9965 000 10044 Roller Pinch
32 9965 000 07439 Solenoid Assy
34 9965 000 10046 Assembly Motor
36 9965 000 12114 Belt SF
37 9965 000 07442 Belt FR
39 9965 000 12115 Flex Socket 5pin Hort.
40-2 4822 265 11535 Flex Socket 8pin Hort.
40-3 9965 000 10049 Mode Switch
40-4 4822 116 83883 470R 5% 0,5W
40-5 9965 000 12116...

9-89-8
TAPE MODULE EXPLODED VIEW
1701 4822 267 10953 Flex Socket 7pin Vert.
1706 4822 267 10953 Flex Socket 7pin Vert.
1710 4822 267 10958 Flex Socket 5pin Hort.
1760 4822 265 11535 Flex Socket 8pin Hort.
CAPACITORS
2621 5322 126 11578 1nF 10% 50V
2621 5322 122 31647 1nF 10% 63V
2622 4822 126 13881 470pF 5% 50V
2622 5322 122 32268 470pF 5% 50V
2623 4822 126 13881 470pF 5% 50V
2623 5322 122 32268 470pF 5% 50V
2625 4822 126 14305 100nF 10% 16V
2625 2238 586 59812 100nF +80/-20% 50V
2701 4822 122 31765...

3710 4822 051 30339 33R 5% 0,062W
3711 4822 051 30101 100R 5% 0,062W
3712 4822 051 30101 100R 5% 0,062W
3717 4822 117 11817 1k2 1% 1/16W AR
3717 4822 051 20122 1k2 5% 0,1W AR
3718 4822 117 11817 1k2 1% 1/16W AR
3718 4822 051 20122 1k2 5% 0,1W AR
3723 4822 051 30183 18k 5% 0,062W AR
3723 4822 051 30223 22k 5% 0,062W Non-AR
3724 4822 051 30183 18k 5% 0,062W AR
3724 4822 051 30223 22k 5% 0,062W Non-AR
3733 4822 051 30273 27k 5% 0,062W
3734 4822 051 30273 27k 5% 0,062W
3735 4822 051 30223 22k 5% 0,062W
3735...