Panasonic FP-7742 / FP-7750 Service Manual ▷ View online
3-17
PCB Connector and
Signal Information
(CN401)
Pin
Signal
Destination
Status
Function
No.
Name
11 BPSN
Toner bottle
Home position detecting
home position
signal
sensor SN10-2
12 TFSN
Toner bottle
Empty detecting signal
empty sensor
SN3-2
SN3-2
13 VLC
Toner bottle
DC+5V power supply
home position
sensor SN10-1
sensor SN10-1
14 VLC
Toner bottle
DC+5V power supply
empty sensor
SN3-1
SN3-1
15 —
16 —
17 CPRX
LVPS
Control panel transfer
CN104-8
signal
18 CPTX
LVPS
Control panel receive
CN104-9
signal
19 BPSN
LVPS
Toner bottle home
CN104-5
position detecting signal
20 —
(CN401)
Pin
Signal
Destination
Status
Function
No.
Name
21 VLC
LVPS
DC+5V power supply
CN104-14
22 VLC
LVPS
DC+5V power supply
CN104-15
23 VP
LVPS
DC+24V power supply
CN108-1
24 PGND
LVPS
0V
Power ground
CN104-1
25 VP
LVPS
DC+24V power supply
CN108-2
26 PGND
LVPS
0V
Power ground
CN104-2
0V
5V
0V
24V
0V
5V
0V
24V
Home
5V
0V
0V
Full
5V
0V
5V
Pulse
5V
0V
Pulse
5V
0V
Home
5V
0V
0V
5V
3-18
(CN402)
Pin
Signal
Destination
Status
Function
No.
Name
1 X1
Touch panel
An abscissa detecting
CN-1
signal 1
2 Y2
Touch panel
An ordinate detecting
CN-2
signal2
3 X2
Touch panel
An abscissa detecting
CN-3
signal 2
4 Y1
Touch panel
An ordinate detecting
CN-4
signal 1
(CN403)
Pin
Signal
Destination
Status
Function
No.
Name
1 VLCD
LCD
DC17 to DC24V
LCD density contro
lCN-1
signal
2 VEE
LCD
DC24V
LCD drive power supply
CN-2
3 UD3
LCD
LCD data signal 3
CN-3
4 UD2
LCD
LCD coordinates signal 2
CN-4
5 UD1
LCD
LCD coordinates signal 1
CN-5
6 UD0
LCD
LCD coordinates signal 0
CN-6
7 LCDAC
LCD
LCD AC changing signal
CN-7
8 GND
LCD
0V
Ground
CN-8
9 VLC
LCD
DC+5V power supply
CN-9
10 CP
LCD
LCD data transfer clock
CN-10
signal
Analog Touch
0V
5V
3 MHz
5V
0V
0V
5V
600–700 MHz
Pulse
5V
0V
Pulse
5V
0V
Pulse
5V
0V
Pulse
5V
0V
Select
5V
0V
Select
5V
0V
Analog Touch
0V
5V
3-19
PCB Connector and
Signal Information
(CN403)
Pin
Signal
Destination
Status
Function
No.
Name
11 LP
LCD
LCD data latch plus
CN-11
signal
12 FRM
LCD
LCD data frame signal
CN-12
(CN405)
Pin
Signal
Destination
Status
Function
No.
Name
1 CLMBB
Corona cleaner
Stepping motor drive
motor CN-1
signal
2 VP
Corona cleaner
DC+24V power supply
motor CN-2
3 CLMB
Corona cleaner
Stepping motor drive
motor CN-3
signal
4 CLMA
Corona cleaner
Stepping motor drive
motor CN-4
signal
5 CLMAB
Corona cleaner
Stepping motor drive
motor CN-5
signal
6 VLC
Corona cleaner
DC+5V power supply
motor home
position sensor
SN4-1
position sensor
SN4-1
7 CLSN
Corona cleaner
Home position detecting
motor home
signal
position sensor
SN4-2
SN4-2
8 GND
Corona cleaner
0V
Ground
motor home
position sensor
SN4-3
position sensor
SN4-3
0V
24V
0V
5V
0V
Home
5V
13–15 mS
60 µS
5V
0V
ON
24V
0V
ON
24V
0V
ON
24V
0V
ON
24V
0V
3-20
(CN406)
Pin
Signal
Destination
Status
Function
No.
Name
1 DRV0
Control panel 3
Key input matrix circuit
CN450-1
drive signal 0
2 DRV1
Control panel 3
Key input matrix circuit
CN450-2
drive signal 1
3 DRV2
Control panel 3
Key input matrix circuit
CN450-3
drive signal 2
4 DRV3
Control panel 3
Key input matrix circuit
CN450-4
drive signal 3
5 MTR10
Control panel 3
Key input matrix circuit
CN450-5
data signal 10
6 MTR11
Control panel 3
Key input matrix circuit
CN450-6
data signal 11
7 MTR12
Control panel 3
Key input matrix circuit
CN450-7
data signal 12
8 MTR13
Control panel 3
Key input matrix circuit
CN450-8
data signal 13
9 LDDRV0 Control panel 3
LED drive signal 0
CN450-9
10 LDDRV1 Control panel 3
LED drive signal 1
CN450-10
(CN406)
Pin
Signal
Destination
Status
Function
No.
Name
11 GND
Control panel 3
0V
Ground
CN450-11
12 GND
Control panel 3
0V
Ground
CN450-12
1.25 mS
Select
5V
0V
1.25 mS
Select
5V
0V
1.25 mS
Select
5V
0V
1.25 mS
Select
5V
0V
5V
0V
ON
OFF
5V
0V
ON
OFF
5V
0V
ON
OFF
5V
0V
ON
OFF
5V
0V
ON
OFF
5V
0V
ON
OFF
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