Chapter 4 ELECTRICAL SIGNALS
UNI-5 Service Manual 4-7
XJ5
No. Signal Name Direction Opposite Side
2,20 DC+5V -
LCD
1,21 GND -
25 DC+5V power supply for LCD -
26 LCD GND -
10,11 AC power supply for LCD -
3 DC-10V power supply for LCD -
4 DC+15V power supply for LCD -
Others LCD control signal ←→
XJ6
No. Signal Name Direction Opposite Side
1 DC+5V -
LCD backlight
2 GND -
XJ8
No. Signal Name Direction Opposite Side
1,2,3,4,
5,6,7,8
Key scanning
KS0 - KS7
→
Membrane key
9,10,11,12,
13,14,15,16,
17,18,19
Key data
KD0 - KD10
←
20 Unused -
XJ9
No. Signal Name Direction Opposite Side
1 DC+5V -
Unused
2 GND -
XJ10,11
No. Signal Name Direction Opposite Side
1 DC+5V for vibration -
Unused
2 GND -
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