Casio UP-400 Service Manual page 18

1 2
VCC3
R41
10K
B Q7 R163
2SA1980S 1K
A 4.7K R162
DRW1#
4.7K R164
DRW2# VCC3
R43
10K
R165
Q9
B
1K
2SA1980S
R7
470
DRWSENS
C28
0.1uF
B
VCC3 VP
R45
10K
U16
1
NC NC
2
IN VCC
3
NC OUT
4
GND C
C32 M51957BF P
0.1uF R87
1K
R104
4.7K
U17C
9
DSRRST#
10
C70 74HC00
1000pF
R88
LDSR#
1K
C
VP
CN6
1
P O W E R S W
2
B2P-VH
F2
CN7 FB2
1 125V/5A
2
0251005.
3 BLM31PG330SN1
R73 FB1
TCS7960- 5 320177
0 BLM31PG330SN1
R101
1M
C72
1000pF
D
1 2
3
Q8
B
2SD1415A VP
FM4004/1N4004
F1
R42
*
025101.5
D9 D10
125V/1.5A
FM4004/1N4004
Q10
B
VCC3
2SD1415A
R44
*
C27
CN4
0.1uF
1
2
3
4
5
6
VCC3
TM5RE2-66
R72
0
R92
3.3K D5
R8
MCL355
470
D6
MCL355
VCC3
C29
VCC
R82
0.1uF
1K
8
7 U17A U17B
6 1 4
5 3
2 5
C34
C33 74HC00 74HC00
0.1uF
0.1uF
VCC3
VCC3
U17D
8 12
11
13 C35
0.1uF
74HC00
C62
100pF
C73
VP
0.01uF
U18
1 8
CB VSW
2 7
SS VI N
3 6
SYNC GND
4 5
FB ON/OFF
LM2672MX-5.0
+ EC3
100uF /50V
3
4 5
DRAWER
1K
ONLINE_SW#
ONLINE#
ST0
ERRER#
ST1
1K
RFEED#
R98
6
RES#
RES#
330
C71
1000pF
VCC VCC3
GND
U19
VCC VCC3
SP X1117_3.3
L1
2 3
IN OUT
CDRH125 680
+ EC4
1000uF /10V EC5
+
D7
C36 C37
EC31QS06
0.1uF 0.1uF
100uF /16V
* marks are unm ounted parts.
CASIO COMPUTER CO.,LTD.
4 5
– 16 –
6 7
4.7K R147
VCC3
R83 1K R85
VCC3
C30
0.1uF
R99
180
Q3
4.7K R103 B
2SA1980S
VCC3
B Q2
4.7K R102
2SA1980S
R100
4.7K R148
VCC3 180
R84 1K R86
C31
0.1uF
R190
R160
BUZZER
0
4.7K
R161
0
R191 10K
0
R192
*0
R193
Model PWB No. PWB Name
UP-400 EBL-0950B
6 7
8
A
VCC
B
CN5
R9
470 1
2
3
4
OP Pannel
5
6
B6B-EH
VP C
R105
BZ1
4.7K
PS1740P 02
B Q6
2SC5343S
D
Main Board Circuit (3/3)
8