Panasonic SA-AK78 Service Manual page 31
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- Service manual (85 pages) ,
- Operating instructions manual (45 pages) ,
- Operating instructions manual (44 pages)
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SCHEMATIC DIAGRAM-5
B
MECHANISM CIRCUIT
A
0.1V
((3.8V))
0.1V
((3.8V))
B
C
D
R1220
4.7K
R1145
10K
4.8V
0.1V
0.6V
0V
0.5V
0V
CP1102
CS971
IC971
0N2180RLC1
PHOTO INTERRUPTER
C
MECHANISM (DECK2) CIRCUIT
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:NEGATIVE VOLTAGE LINE
:POSITIVE VOLTAGE LINE
R1106
2.2K
Q1151,1152
DTC144TKA146
SWITCHING(PLAY:ON)
A
((0V))
Q1151
Q1152
((0V))
B
R1161
4.7K
R1162
4.7K
A
B C
D
Q1120,1121
2SC2412KT96R
INTERFACE
Q1121
((4.8V))((4.8V))
((0V))
Q1120
((0V))
1
2
3
4 5 6 7
8
9
1
2
3
4 5 6 7
8
9
Z971
1
2
4.7K
S975
(F.REC.INH.)
3
4.7K
S971
(MODE)
4
((5V))
((5V))
4.7K
S974
4
2
(R.REC.INH.)
5
4.7K
S972
(HALF)
6
3
1
7
:TAPE PLAYBACK SIGNAL LINE
: RECORDING SIGNAL LINE
14.8V
R1151
1M
((8.8V))
((2.6V))
Q1153
((2.1V))
Q1153,1154
2SC2412KT96R
MUTING
((2.1V))
((2.6V))
Q1154
((8.8V))
R1152
1M
Q1115
0.7V
((0V))
((0V))
0.7V
((0V))
((0V))
Q1116
Q1115,1116
2SD2114K1V
MUTING
E
F
G
Q1118,1119
2SC2412KT96R
INTERFACE
Q1119
((0V))
((0V))
((0V))
Q1118
((0V))
CP1101
1
2
3
4 5 6 7
1
2
3
4 5 6 7
CS951
50K
50K
50K
50K
50K
D
MECHANISM (DECK1) CIRCUIT
31
C1165
16V10
C
C1166
16V10
D
R1186
1K
H
8
9
8
9
R953
39K
IC951
0N2180RLC1
PHOTO INTERRUPTER
((5V))
((5V))
4
2
3
1
SA-AK78
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