MX-M950, MX-MM1100 (serv.man42). Section 11 Electrical - Sharp Copying Equipment Service Manual (repair manual). Page 15

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MX-M1100  ELECTRICAL SECTION  11 – 15
SCK_LSU
Serial communication clock 
signal
Communication clock signal 
with the LSU PWB
5
9
PCU
SCOV_IN
SCOV (Photo interrupter)
DSPF upper door open/close 
detection
Open
Close
CN7
24
DSPFcnt 
PWB
SENSE
Key matrix signal
Detects the key in the matrix 
which was pressed with the 
input signal and the output 
signal. 
CN3
14, 
16, 
18, 
20, 
22
MFP 
OPE
SLCOV_IN
SLCOV (Lever SW)
DSPF lower door open/close 
detection
Open
Close
CN7
8
DSPFcnt 
PWB
SLUM_/A
SLUM (Stepping motor) 
Lift-up motor drive signal
CN10
19
DSPF-
Driver 
PWB
SLUM_/B
SLUM (Stepping motor) 
Lift-up motor drive signal
CN10
23
DSPF-
Driver 
PWB
SLUM_A
SLUM (Stepping motor) 
Lift-up motor drive signal
CN10
17
DSPF-
Driver 
PWB
SLUM_A#
SLUM (Stepping motor) 
Lift-up motor drive signal
CN1
8
DSPFcnt 
PWB
SLUM_A#
SLUM (Stepping motor) 
Lift-up motor drive signal
CN1
8
DSPF-
Driver 
PWB
SLUM_B
SLUM (Stepping motor) 
Lift-up motor drive signal
CN10
21
DSPF-
Driver 
PWB
SLUM_B#
SLUM (Stepping motor) 
Lift-up motor drive signal
CN1
9
DSPFcnt 
PWB
SLUM_B#
SLUM (Stepping motor) 
Lift-up motor drive signal
CN1
9
DSPF-
Driver 
PWB
SLUM_XA#
SLUM (Stepping motor) 
Lift-up motor drive signal
CN1
10
DSPFcnt 
PWB
SLUM_XA#
SLUM (Stepping motor) 
Lift-up motor drive signal
CN1
10
DSPF-
Driver 
PWB
SLUM_XB#
SLUM (Stepping motor) 
Lift-up motor drive signal
CN1
11
DSPFcnt 
PWB
SLUM_XB#
SLUM (Stepping motor) 
Lift-up motor drive signal
CN1
11
DSPF-
Driver 
PWB
SOCD_IN
SOCD (Photo interrupter) 
DSPF open/close detection
Close
Open
CN7
9
DSPFcnt 
PWB
SPED
SPED (Photo interrupter) 
DSPF document set/empty 
detection
Document 
present
Document 
empty
CN5
17
DSPF-
Driver 
PWB
SPED_IN
SPED (Photo interrupter) 
DSPF document set/empty 
detection
Document 
present
Document 
empty
CN1
16
DSPFcnt 
PWB
SPED_IN
SPED (Photo interrupter) 
DSPF document set/empty 
detection
Document 
present
Document 
empty
CN1
16
DSPF-
Driver 
PWB
SPFFAN1#
SPF fan motor
SPF fan motor drive signal
Rotation
Stop
CN1
12
DSPFcnt 
PWB
SPFFAN1#
SPF fan motor
SPF fan motor drive signal
Rotation
Stop
CN1
12
DSPF-
Driver 
PWB
SPFFAN1_
LOCK
SPF fan motor
Lock detection signal
Normal
Lock 
detection
CN9
13
DSPF-
Driver 
PWB
SPFFAN1_
LOCK_IN
SPF fan motor
Lock detection signal
Normal
Lock 
detection
CN1
13
DSPFcnt 
PWB
SPFFAN1_
LOCK_IN
SPF fan motor
Lock detection signal
Normal
Lock 
detection
CN1
13
DSPF-
Driver 
PWB
SPFFAN1_
POWER
SPF fan motor
SPF fan motor power source
Stop
Rotation(24
V)
CN9
11
DSPF-
Driver 
PWB
SPFM_/A
SPFM (Stepping motor) 
Transport motor drive signal
CN9
18
DSPF-
Driver 
PWB
SPFM_/B
SPFM (Stepping motor) 
Transport motor drive signal
CN9
19
DSPF-
Driver 
PWB
Signal name
Name
Function/Operation
Connector level
Connector 
No.
Pin 
No.
PWB 
name
Re
mark
L
H
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