Schematic Diagram / Wiring Side Of P.w.board - Sharp MD-X60 Service Manual

MD-X60
A
B
TAPE HEAD
PWB-F
RECORD/
PLAYBACK HEAD
C
1
L-CH
2
3
R-CH
4
5
6
EH
ERASE HEAD
D
E
F
G
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 62.
1
TAPE SIGNAL
RECORD SIGNAL
7 7
1 6 6
2
5 5
3 4 4
4 3 3
2 2
5
6 1 1
0V
0V
0V
0.1V
HEAD SELECTOR
VR101
22K(B)
L-CH REC
VR102
FREQUENCY
22K(B)
C140
0.0082
C139
0.039
Q111
DTC143 TK
0V
0V
2 3
Figure 36 SCHEMATIC DIAGRAM (1/15)
C128
220/10
+B
C105
0.033
C111
R101
270P
1K
36 35 34 33 32 31 30 29 28
1 2 3 4 5 6 7 8 9
R102
1K
C112
270P
C106
0.033
C108
0.22/50
REC SW REC SW
1 9
0V
0V
2 8
C104
220/10
3 7
0V
P/B SW P/B SW
CONT
4
10.6V
6
5
IC102
BA3126N
R121
15K
R122
15K
R134
1K
POSISTOR
Q110
RP101
C138
2SC3242 G
0.047
0V
(ML)
0V
C141
0V
100/16
A
L101
330µH
B
C143
SW101
0.022
3 BEET CANCEL
2
3.8V
0V
1
1
0V
2
3
3.8V
Q112
DTC143 TK
4
– 36 –
R111 R117
47K
1.8K
C121 C123
C117
560P 180P(CH)
1/50
C119
2
0.0033
R115
0V
1M R123
R113
0V
220
2.2M
C107 C113
0.22/50 1/50
C125
10/16
C115
C109
C129
0.001
R125
270P
1/50
1.5K
27 26 25 24 23 22 21 20 19
10 11 12 13 14 15 16 17 18
R110
R128
C147
5.6K
1M
10/16
C114
1/50
REC IN
EQ OUT
C120
C116
R116 C126
0.0033 0.001
1M
10/16
R114
C122
2.2M
C150
560P
100P(CH)
C124
2 3
180P
0.5V
(CH) 0V
1 0V
R131
100
3 11V
Q106
11V
KRA107 S
1
0V 2
R145
150
Q105
R146
2SB561 C
150
0V 0V
R147
33 (1/2W)
R148
0V
33 (1/2W)
R157
Q107
5.6K
DTC144 EK
2
0V
1
0V
5
3
0.5V
1
EQ OUT
REC IN
REC OUT
R
5
Q10
2SB
0V
11V
+B
2
3
0.5V
6