Sharp R-21LTF Service Manual page 35

2. R-21LVF
2.7K R40
K
R3
HZ4A2
0.1u/50V
47u/10V
0.1u/50V
2200u/25V
VRS1
Figure S-2. Control Panel Circuit for R-21LVF
9 X 100
R58
R57
R56
R55
R54
R53
R52
R51
R50
9 8
01 GND
07 17
06 16
05 15
04 14
03 13
02 12
16 1
01 11
C7
4.7
ZD2
C4
0.1u/50V
C3
C8
4.7K R4
C2
0.1u/50V C9
C1
(J1)
5 X 4.7K
R84
R85
R86
R87
R88
4.7K R5
+
-
15K
R31
47u/10V
D20 D21
12 – 3
G9 G10 G11 G12
0.1u/50V
C6
47u/10V
C5
C70
4.7K R70
C31
C30
R21LTF