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SCHEMATIC DIAGRAM-5
DECK1
CS1101
L ch
1
PLAYBACK
2
HEAD
3
R ch
4
5
DECK2
L ch
CS1102
1
R/P HEAD
2
R ch
3
4
ERASE
HEAD
5
ERASE CURRENT
CHECK POINT
Q1179
2SC2412KT96R
SWITCHING
(BEAT PROOF)
DECK CIRCUIT
TP6
TP3
TP2
TP1
TP4
TP5
TP11
IC1102
BA7755A
R/P SELECT
Vcc
1
R1188
1K
TP12
L1202
47
6
5
4
R1173
10K
0.7V
((0V))
((0V))
Q1171
2SD1302STA
26.4V
SWITCHING
((0V))
(REC:ON)
((0V))
:POSITIVE VOLTAGE LINE
R1103
15K
C1193
C1101
1000P
1000P
R1102
D
Q1101
0V
((0V))
100K
((4.2V))
2SJ498CDTA
G
HEAD SELECT
((0V))
(REC:ON)
S
S
0V
Q1103
((0V))
((4.4V))
2SJ498CDTA
G
HEAD SELECT
((0V))
(PLAY:ON)
D
D
((0V))
Q1104
0V
((4.4V))
2SJ498CDTA
G
HEAD SELECT
((0V))
(PLAY:ON)
S
R1195
S
0V
Q1102
((0V))
100K
((4.2V))
2SJ498CDTA
G
HEAD SELECT
((0V))
(REC:ON)
D
C1194
C1102
1000P
1000P
R1104
15K
GND
2
3
4
5
((8.3V)) ((0V))
((0V))
11.1V
4.9V
H
R1178
L1201
1
2
3
D1171
R1174
MA8047MTX
MA111TX
10K
D1174
R1172
MA8036HTX
330
:TAPE PLAYBACK SIGNAL LINE
:TAPE RECORDING SIGNAL LINE
14.8V
A
B
C
D
E
F
C1178
1000P
((14.8V))
0.6V
((0V))
Q1176
((0V))
1.2
((0V))
0.6V
((0V))
Q1175
((14.8V))
C1177
1000P
Q1175,1176
2SC2002KTA
D1175
TP171
MA111TX
BIAS OSC
D1172
0.6V
((0V))
((0V))
Q1174
2SC2412KT96R
BIAS OSC CONT.
0.6V
(CrO
)
2
((0V))
((0V))
((4.8V)):CrO
2
Q1173
DTC144TKA146
BIAS OSC CONT.(CrO
)
2
R1180
2.7K
R1179
2.7K
0.7V
TP170
TP172
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