4-3
PCB Connector and
Signal Information
(CN403)
Pin
Signal
Destination
Status
Function
No.
Name
1 SH/LD
Control panel 2
Key data
CN352-1
shift/load signal
2 CLK2
Control panel 2
Key data
CN352-2
serial shift colck signal
3 DRSEL3
Control panel 2
LED select signal
CN352-3
4 DRSEL2
Control panel 2
LED select signal
CN352-4
5 DRSEL1
Control panel 2
LED select signal
CN352-5
6 DRSEL0
Control panel 2
LED select signal
CN352-6
7 LEDb0
Control panel 2
LED ON/OFF signal
CN352-7
8 LEDb1
Control panel 2
LED ON/OFF signal
CN352-8
ON
5V
2.5V
ON
5V
2.5V
(CN402)
Pin
Signal
Destination
Status
Function
No.
Name
1 LEDb2
Control Panel 2
LED ON/OFF signal
CN351-1
2 LEDb3
Control Panel 2
LED ON/OFF signal
CN351-2
3 LEDb4
Control Panel 2
LED ON/OFF signal
CN351-3
4 LEDb5
Control Panel 2
LED ON/OFF signal
CN351-4
5 LEDb6
Control Panel 2
LED ON/OFF signal
CN351-5
6 —
7 VL
Control Panel 2
DC +5V power supply
CN351-7
8 LCDWR
Control Panel 2
LCD data write pulse
CN351-8
ON
5V
2.5V
ON
5V
2.5V
ON
5V
2.5V
ON
5V
2.5V
ON
5V
2.5V
0V
5V
Pulse
0V
5V
Shift
Load
5V
0V
Pulse
5V
0V
Pulse
5V
0V
Pulse
5V
0V
Pulse
5V
0V
Pulse
Summary of Contents for FP-7718
Page 9: ...nfjlfns dgn ...
Page 53: ...5 19 Troubleshooting ...