Sharp FO-4650, Service Manual

Page: 25 / 80

FO-4650U
1 2 6
4
3
5
BD
E
F
G
I
H
C
A
BD
E
F
G
I
H
C
A
1 2
6
4 3 5
/CTBSYP /CTBSYF
R328
10K
C239
0.1
14
1 2 7
3
IC28A
74HC08
/CTBSY
/VIDEOF /VIDEOP
R419
10K
14
4 5 7
6
IC28B
74HC08
/VIDEO
/CPRDYF /CPRDYP
R320
10K
14
9
10
7
8
IC28C
74HC08
/CPRDY
/PRINTF /PRINTP
R321
10K
14 12 13
7
11
IC28D
74HC08
/PRINT
/CMDP /CMDF
R327
R423
0
14
4 5 7
6
IC29B
/CMD
R421
/SRCLKP /SRCLKF
R322
R422
0
14
1 2 7
3
IC29A
/SRCLK
R420
R379
0
C272
14
9
10
7
8
IC29C
14
12 13
7
11
IC29D
C244
N.M.
C271
N.M.
R378
0
R323
N.M.
+5V
+5V
DG
+5V
+5V
DG
DG
DG
+5V
+5V
DG
+5V
+5V
N.M.
+5V
+5V
N.M.
DG
DG
N.M.
DG
+5V
+5V
+5V +5V
DG
DG
DG
N.M.
DG
(15-3H)
(8-3H) (8-3H)
(15-4H)
(8-3H)
(15-3F)
(8-4H)
(15-3F)
(14-3G) (14-2G) (14-3G) (14-3E)
(15-3F)
(1-5A)
(15-3F)
(1-4A)
(14-3E) (14-3G)
Selector block
12/16
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