Sharp MD-R3H Service Manual page 42

MD-R3H
A
+5V
1
P47 9 - H
D.GND
2
CNP505
B M.GND
3
+9V
TO MAIN PWB
4
GND
1
COMAND DATA
2
(CH KEY)
CLOCK
C
(CH CLK) 3
READY
(CH STB) 4
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
100µH
+B
1
2
3
4
LB102
5
10µH
LB105
10µH +B
+B
1
2
3
RB109 1K
4
RB110 1K
5
6
RB111 1K
RB112 1K
G
1 1
2 1 2
2
3 3
G
4 4
5 5
3
6 6
4
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
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 –
XB101
3MHz
9
11 10
NC
12
0V
D-GND
13
0V
D-GND
14
OV
D-GND
15
0V
TRAY TIME
µPD750008GB
16
0V
D-GND
17
MICROCOMPUTER
0V
XT1
18
5.07V
XT2
19
4.9V
RESET
20
CLOCK
2.2V
21
IN
2.4V
CLOCK
22
OUT
23 24 25
+B
+5V
D.GND
+B
+B
5
M.GND
M+9V
4
8 6 5 3
7
ICB101
IX0177AW
RH-IX AWZZ
CHANGER
26 27 28 29 30 31
5.07V
3.5V
CB106
100/16
CB107
100P
CB108
100P
CB109
100P
CB110
100P
CB111
100P
CB112
100P
CB113
100P
CB114
100P
6