Ic Signal Name - Sharp UX-370SE Service Manual

UX-370ES/SE/F
FO-780AT/ES

[2] IC signal name

CONTROL PWB UNIT
IC5: VHiULN2003ANS (ULN2003A)
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
IC7: VHiTC74HCU04F(TC74HCU04F)
VCC 6A 6Y
14 13 12
1 2 3
1A 1Y 2A
9
4 5 6 7 8
E
5A 5Y 4A 4Y
11 10 9 8
4 5 6 7
2Y 3A 3Y GND
IC3: VHiW24258S7LE(W24258S-70LE)
(TOP VIEW)
A14 1
A12 2
A7 3
A6 4
A5 5
A4 6
A3 7
A2 8
A1 9
A0 10
IO1 11
IO2 12
IO3 13
VSS 14
IC11: VHiHCF4053M1T (HCF4053B)
6
11
Controls
10
9
12
13
2
Switches
In/Out
1
5
3
8 – 4
28 VDD
27 WE
26 A13
25 A8
24 A9
23 A11
22 CS2/OE
Pin name
21 A10
Address input
A0~A14
20 CS1
CS1/CS2 Chip enable
19 IO8
WE Write enable
OE Write enable
18 IO7
I/O1~I/O8 Data I/O
17 IO6
VDD Power source
16 IO5
VSS Ground
15 IO4
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