Read Panasonic FP-7742 / FP-7750 Service Manual online
3-6
(CN7)
Pin
Signal
Destination
Status
Function
No.
Name
1 GND
Copy density
0V
Ground
sensor CN-1
2 CDSN2
Copy density
Analog
Paper base tone
sensor CN-2
0 to 5V
detecting signal
3 VCDS
Copy density
Sensor ON/OFF signal
sensor CN-3
4 CDSN1
Copy density
Analog
Copy density detecting
sensor CN-4
0 to 5V
signal
5 GOPSW1 Developer unit
Developer unit detecting
signal
signal
6 TDREF
Toner density
Analog
Toner density gain
sensor CN-1
0 to 8.5V
adjustment output signal
7 VP
Toner density
DC+24V power supply
sensor CN-2
8 TDSN
Toner density
Analog
Toner density detecting
sensor CN-3
0 to 5V
signal
9 GND
Toner density
0V
Ground
sensor CN-4
10 GOPSW2 Developer unit
0V
Ground
(CN6)
Pin
Signal
Destination
Status
Function
No.
Name
1 VL
Bypass paper
DC+5V power supply
size sensor 3
CN-1
CN-1
2 HPSSN3 Bypass paper
Paper size detecting
size sensor 3
signal
CN-2
3 GND
Bypass paper
0V
Ground
size sensor 3
CN-3
CN-3
4 VL
Bypass paper
DC+5V power supply
size sensor 2
CN-1
CN-1
5 HPSSN2 Bypass paper
Paper size detecting
size sensor 2
signal
CN-2
6 GND
Bypass paper
0V
Ground
size sensor 2
CN-3
CN-3
7 VL
Bypass paper
DC+5V power supply
size sensor 1
CN-1
CN-1
8 HPSSN1 Bypass paper
Paper size detecting
size sensor 1
signal
CN-2
9 GND
Bypass paper
0V
Ground
size sensor 1
CN-3
CN-3
0V
5V
0V
5V
0V
5V
5V
Detect
5V
Detect
5V
Detect
5V
ON
0V
5V
Not
detect
detect
0V
24V
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