MX-M950, MX-MM1100 (serv.man42). Section 11 Electrical - Sharp Copying Equipment Service Manual (repair manual). Page 13

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MX-M1100  ELECTRICAL SECTION  11 – 13
n_GINC#
Double feed detection PWB gain 
increment control signal (DSPF)
Gain increment control
CN10
7
DSPFcnt 
PWB
nCTS_WICU
WICU
Pass signal
CN5
7
SCNCNT 
PWB
nDSPFUP
SCNCNT
DSPF ready signal
Ready
CN5
37
DSPFcnt 
PWB
nDSPFUP
DSPFcnt
DSPF ready signal 
Ready
CN7
37
SCNCNT 
PWB
nLCD_EN
LCD I/F enable
LCD display/non-display 
control
Display
Not display
CN2
22
MFP 
OPE
nLCD_PWR_EN
LCD power enable
LCD backlight ON/OFF control
ON
OFF
CN2
23
MFP 
OPE
nPCU_
REQACKIN
PCU 
→ MFPC interruption signal Interrupt request to MFPC
11
16
PCU
Not 
used
nPOF
SCNCNT
Power OFF signal
Power OFF
Power ON
CN5
34
DSPFcnt 
PWB
nPOF
DSPFcnt
Power OFF signal
CN7
34
SCNCNT 
PWB
nPOF_WICU
WICU
Power OFF signal
CN5
11
SCNCNT 
PWB
nPWR_SW
Operation panel power switch 
[Tact switch]
DC power ON/OFF control 
signal output
CN2
29
MFP 
OPE
nSCNUP
SCNCNT
SCAN ready signal
Ready
CN5
35
DSPFcnt 
PWB
nSCNUP
DSPFcnt
SCAN ready signal
Ready
CN7
35
SCNCNT 
PWB
nWU_KEY
Power saving switch [Tact 
switch]
Power saving ON/OFF control 
signal output
CN2
30
MFP 
OPE
nWU_LED
Power saving LED
Power saving key ON/OFF 
control
OFF
ON
CN2
28
MFP 
OPE
OC-Vcc
Open/close detection sensor 
(Photo interrupter)
Sensor power source
CN3
1
SCNCNT 
PWB
ON/OFF
CL inverter (Front surface)
Copy lamp (front surface) ON/
OFF
CN2
3
SCN-
Mother 
PWB
OP_D0
Mini operation panel LCD data 
signal 0
Mini operation panel LCD data 
0
23
21
PCU
OP_D1
Mini operation panel LCD data 
signal 1
Mini operation panel LCD data 
1
23
20
PCU
OP_D2
Mini operation panel LCD data 
signal 2
Mini operation panel LCD data 
2
23
19
PCU
OP_D3
Mini operation panel LCD data 
signal 3
Mini operation panel LCD data 
3
23
18
PCU
OP_D4
Mini operation panel LCD data 
signal 4
Mini operation panel LCD data 
4
23
17
PCU
OP_D5
Mini operation panel LCD data 
signal 5
Mini operation panel LCD data 
5
23
16
PCU
OP_D6
Mini operation panel LCD data 
signal 6
Mini operation panel LCD data 
6
23
15
PCU
OP_D7
Mini operation panel LCD data 
signal 7
Mini operation panel LCD data 
7
23
14
PCU
PAGE_CIS
CIS sub scan image area signal
Sub scan image area
Image area
19
10
PCU
PCS
Image density sensor signal
Toner patch density detection 
on the OPC drum
9
7
PCU
PCU_CTS
Serial communication control 
signal
Serial I/F control signal
11
6
PCU
PCU_CTS_MON
Serial communication control 
signal monitor
Serial I/F control signal
22
6
PCU
PCU_
REQACKOUT
MFPC 
→ PCU interruption signal Interrupt request from MFPC
11
18
PCU
Not 
used
PCU_RES
PCU reset signal
The controller resets the PCU.
Operation 
enable
Reset
11
8
PCU
PCU_RES_
MON
PCU reset signal monitor
The controller resets the PCU.
22
2
PCU
PCU_RTS
Serial communication control 
signal
Serial I/F control signal
11
4
PCU
PCU_RTS_MON
Serial communication control 
signal monitor
Serial I/F control signal
22
3
PCU
PCU_RXD_
MON
Serial communication send data 
signal monitor
Send data to the controller
22
4
PCU
PCU_RXD_N
Serial communication send data 
signal 
Send data to the controller
11
13
PCU
PCU_RXD_P
Serial communication send data 
signal
Send data to the controller
11
11
PCU
Signal name
Name
Function/Operation
Connector level
Connector 
No.
Pin 
No.
PWB 
name
Re
mark
L
H
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