Pnl Pcb - Panasonic UF-E1 Service Manual

UF-E1
3.9.

PNL PCB

LED3
PC1
CNP40
PIN No. Signal Name
1 PLED
2 +3V
3 BLED
4 G
CNJ41
PIN No. Signal Name
1 DB7
2 DB6
3 DB5
4 DB4
5 DB3
6 DB2
LED2
LED1
LED4
PC3
PC2
Destination
Printer LED
Printer LED
Back Light LED
Back Light LED
Destination
LCD Module
LCD Module
LCD Module
LCD Module
LCD Module
LCD Module
LED6
CNJ41
LED5
Signal Waveform
+1V
LED OFF
0V
LED ON
+3.3V
+3.3V
LED ON
0V
LED OFF
GND
Signal Waveform
+5V
0V
+5V
0V
+5V
0V
+5V
0V
54
CNP40
Function
LED Enable signal
+3.3VDC power supply
LED Enable signal
Ground
Function
Data Bus[7]
Data Bus[6]
Data Bus[5]
Data Bus[4]
NC
NC