Sharp FO-1660 Service Manual page 89

IC10: VHiNJM2902M-1 (NJM2902M)
1
A OUTPUT
A
A-INPUT 2
–
3
A+INPUT
V+ 4
B+INPUT 5
–
B-INPUT 6
B
B OUTPUT 7
IC8: VHiHEF4066BT1 (HEF4066)
1
IN/OUT
OUT/IN
OUT/IN 2
3
OUT/IN
OUT/IN
IN/OUT 4
IN/OUT
CONT. B 5
CONT. C 6
IN/OUT
VCC 7
IC1: VHiMC74HCU04F (MC74HCU04F)
VCC 6A 6Y
14 13 12
1 2 3
1A 1Y 2A
14 D OUTPUT
D
13 D-INPUT
+ + –
12 D+INPUT
11 GND
10 C+INPUT
+ + –
9 C-INPUT
C
8 C OUTPUT
14
VDD
IN/OUT
SWA
13 CONT. A
SWD
12
CONT. D
IN/OUT
11 IN/OUT
OUT/IN
SWB
10 OUT/IN
9 OUT/IN
SWC
OUT/IN
8 IN/OUT
5A 5Y 4A 4Y
11 10 9 8
4 5 6 7
2Y 3A 3Y GND
IC3: VHi27C02012TI (27C020)
EP-ROM
(TOP VIEW)
VPP 1
A16 2
A15 3
A12 4
A7 5
A6 6
A5 7
A4 8
A3 9
A2 10
A1 11
A0 12
DQ1 13
DQ2 14
DQ3 15
GND 16
IC2: VHiULN2003AN/ (ULN2003ANS)
1C 2C 3C 4C 5C 6C 7C COM
16 15 14 13 12 11 10
1 2 3
1B 2B 3B 4B 5B 6B 7B
IC12: VHiNJM2113M-1 (NJM2113M)
CD 1
FC2 2
FC1 3
VIN 4
(TOP VIEW)
8 – 5
UX-600MU/MC
FO-1660U/C
32 VCC
Pin name
Signal
31 PGM
A0~A17 Address input
E Chip enable
30 NC
G
Output enable
29 A14
GND Ground
28 A13
PGM Program
DQ1~DQ8 Data output (Program input)
27 A8
VCC
+5V power
26 A9
VPP
+12.5V power(*)
25 A11
(*) Only in the program mode
24 G
23 A10
22 E
21 DQ8
20 DQ7
19 DQ6
18 DQ5
17 DQ4
9
4 5 6 7 8
E
8 VO2
7 GND
6 VCC
5 VO1