Ic Signal Name; Control Pwb Unit - Sharp UX-108 Service Manual

[2] IC signal name

CONTROL PWB UNIT

IC10: VHiNJM2904M-2 (NJM2904M)
(TOP VIEW)
1
A
2
B
–
3
4
IC7: VHiULN2003AN/ (ULN2003A)
1C 2C 3C 4C 5C 6C 7C COM
16 15 14 13 12 11 10
1 2 3 4
1B 2B 3B 4B 5B 6B 7B
PIN NAME
8
1. A OUTPUT
2 .A–INPUT
3. A+INPUT
7
4. GND
5. B+INPUT
6. B–INPUT
6
7. B OUTPUT
8. V+
5
9
5 6 7 8
E
IC5: VHiW24257S7LL (W24257S-70LLT)
(TOP VIEW)
A14 1
A12 2
A7 3
A6 4
A5 5
A4 6
A3 7
A2 8
A1 9
A0 10
DQ1 11
DQ2 12
DQ3 13
GND 14
IC6: VHiHCF4053M1T (HCF4053B)
6
11
Controls
10
9
12
13
2
Switches
In/Out
1
5
3
8 – 4
UX-108U/178U/188U
FO-375U
28 VCC
27 W
26 A13
25 A8
24 A9
23 A11
22 S2
Pin name
21 A10
Address input
A0~A12
20 S1
CE1/CE2 Chip enable
19 DQ8
WE Write enable
OE Write enable
18 DQ7
I/O1~I/O8 Data I/O
17 DQ6
VCC Power source
16 DQ5
GND Ground
15 DQ4
N.C. No connection
Inhibit
A 14
X
B
C
X0 15
Y
X1
Y0
Y1
Z0 4
Z
Z1
VDD: Pin 16
VSS: Pin 8
VEE: Pin7
Signal
Common
Out/In