Sharp MD-R3 Service Manual page 42

MD-R3
A
+5V
P47 9 - H 1
D.GND
2
CNP505
B M.GND
3
+9V
TO MAIN PWB
4
GND
1
COMAND DATA
2
(CH KEY)
CLOCK
C
3
(CH CLK)
READY
4
(CH STB)
MODE DATA
(CH DATA) 5
CNP504
P47 9 - H
TO MAIN PWB
D
E
CAM1
SWB101
CAM2
SWB102
CAM3
SWB103
CAM4
SWB104
F
TRAY SWITCH PWB-H
CD EJECT
SWB105
CD TRAY CLOSE
SWB106
CD IN
G SWB107
CD SET
SWB108
H
NOTES ON SCHEMATIC DIAGRAM can be found on page 33.
1
+B
RB161
ICB104
220K
RESET
5.08V
4.9V
1 2
3
CB141
CB140
0.1 (ML)
0.1 (ML)
0V
+B
LB103
100 H
1 +B
2
3
4
LB102
5
10 H
LB105
10 H +B
+B
1
2
3
RB109 1K
4
5 RB110 1K
6
RB111 1K
RB112 1K
1 G 1
2 1 2
3 2 3
4 G 4
5 3 5
6 4 6
RB123 1K
BIB104
G
1 1 1
A
2 2 2
B
3 3 3
C
4 4 4
D
5 5 5
CD CHANGER PWB-D
2 3
Figure 42 SCHEMATIC DIAGRAM (3/10)
+B
XB101
3MHz
RB103
1K
D.GND
+B
+B
+B
READY
COMAND DATA
MODE DATA
CLOCK
+B
RB121
1K
RB122 1K
RB124
1K
RB125 1K
RB126 1K
RB127 1K
RB128
1K
4
– 42 –
M.GND
M+9V
6
9 8 7 5
11 10
NC
12
0V
D-GND
13
0V
D-GND
14
OV
D-GND
15
0V
TRAY TIME
16
ICB101
0V
D-GND IX0177AW
17
CHANGER
0V
XT1
18
MICROCOMPUTER
5.07V
XT2
19
4.9V
RESET
20
CLOCK
2.2V
21
IN
2.4V
CLOCK
22
OUT
23 24 25 26 27 28 29
5.07V
3.5V
+B
+5V
CB106
100/16
D.GND
CB107
100P
CB108
100P
CB109
+B
100P
CB110
100P
CB111
100P
CB112
100P
CB113
100P
CB114
100P
+B
5 6
4 3
30 31