Key/Lcd Board (Pk-261) - ISHIDA UNI-7 Service Manual

4.2

KEY/LCD BOARD (PK-261)

XJ1
No.
1 DC+5V
2 MODE
3 RESET
4 Unused
5,6 GND
XJ2
No.
1 X1
2 X2
3 Y1
4 Y2
XJ3
No.
1,2,5,7,9,11,14,
GND
16,18,25,26,40
3,4 DC+5V power supply for LCD
6,8,10,12,13,
LCD control signal
15,17,19,20
21,22 AC power supply for LCD
23 DC-10V power supply for LCD
24 DC+15V power supply for LCD
27 DC+15V power supply LCD backlight
28,29 Light control signal for LCD backlight
30 External buzzer signal
31 Vibration signal
32,33 DC+5V
34 - 39 Membrane key control signal
XJ4
No.
1 GND
2 DIM
3 DC+5V
UNI-7 Service Manual
Signal Name
Signal Name
Signal Name
Signal Name
Chapter 4 ELECTRICAL SIGNALS
Direction Opposite Side
-
→
Unused
←
-
-
Direction Opposite Side
→←
→←
Touch panel
→←
→←
Direction Opposite Side
-
→
→
-
-
-
PK-260(XJ1)
-
←
→
→
-
←→
Direction Opposite Side
-
Unused
→
-
4-7