MX-6240N, MX-7040N (serv.man33). Section 14 Electrical Section - Updated November 2012 - Sharp Copying Equipment Service Manual (repair manual). Page 31

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MX-7040N  ELECTRICAL SECTION  14 – 31
DHPD_K
Drum home position (K)
Drum home position (K) 
detection
Drum 
reference 
position
CN18
9
PCU PWB
DHPD_M
Drum home position (M)
Drum home position (M) 
detection
Drum 
reference 
position
CN25
9
PCU PWB
DHPD_Y
Drum home position (Y)
Drum home position (Y) 
detection
Drum 
reference 
position
CN20
9
PCU PWB
DL2_C
Transfer after-
discharging lamp C 
PWM
Transfer after-
discharging lamp C 
PWM control
CN18
29
PCU PWB
DL2_K
Transfer after-
discharging lamp K 
PWM
Transfer after-
discharging lamp K 
PWM control
CN18
19
PCU PWB
DL2_M
Transfer after-
discharging lamp M 
PWM
Transfer after-
discharging lamp M 
PWM control
CN20
29
PCU PWB
DL2_Y
Transfer after-
discharging lamp Y 
PWM
Transfer after-
discharging lamp Y 
PWM control
CN20
19
PCU PWB
DL_C
Discharge lamp C PWM
Discharge lamp C PWM 
control
CN18
28
PCU PWB
DL_K
Discharge lamp K PWM
Discharge lamp K PWM 
control
CN18
18
PCU PWB
DL_M
Discharge lamp M PWM
Discharge lamp M PWM 
control
CN20
28
PCU PWB
DL_Y
Discharge lamp Y PWM
Discharge lamp Y PWM 
control
CN20
18
PCU PWB
DM_C_CK
Drum motor CLK (C)
Drum motor CLK (C) 
signal
CN24
14
PCU PWB
DM_C_D
Drum motor ON/OFF 
(C)
Drum motor ON/OFF 
(C) control
Motor ON
CN23
15
PCU PWB
DM_C_LD
Drum motor lock 
detection (C)
Drum motor lock 
detection (C)
Normal 
rotation 
state
CN21
17
PCU PWB
DM_CW/CCW
Drum motor CW/CCW 
(K)
Drum motor CW/CCW 
(K) control
CCW
CW
CN18
5
PCU PWB
DM_CW/CCW
Drum motor CW/CCW 
(C)
Drum motor CW/CCW 
(C) control
CCW
CW
CN22
16
PCU PWB
DM_CW/CCW
Drum motor CW/CCW 
(M)
Drum motor CW/CCW 
(M) control
CCW
CW
CN28
5
PCU PWB
DM_CW/CCW
Drum motor CW/CCW 
(Y)
Drum motor CW/CCW 
(Y) control
CCW
CW
CN20
5
PCU PWB
DM_K_CK
Drum motor CLK (K)
Drum motor CLK (K) 
signal
CN18
3
PCU PWB
DM_K_D
Drum motor ON/OFF (K)
Drum motor ON/OFF (K) 
control
Motor ON
CN18
4
PCU PWB
DM_K_LD
Drum motor lock 
detection (K)
Drum motor lock 
detection (K)
Normal 
rotation 
state
CN18
6
PCU PWB
DM_M_CK
Drum motor CLK (M)
Drum motor CLK (M) 
signal
CN30
3
PCU PWB
DM_M_D
Drum motor ON/OFF 
(M)
Drum motor ON/OFF 
(M) control
Motor ON
CN29
4
PCU PWB
DM_M_LD
Drum motor lock 
detection (M)
Drum motor lock 
detection (M)
Normal 
rotation 
state
CN27
6
PCU PWB
DM_Y_CK
Drum motor CLK (Y)
Drum motor CLK (Y) 
signal
CN20
3
PCU PWB
DM_Y_D
Drum motor ON/OFF (Y)
Drum motor ON/OFF (Y) 
control
Motor ON
CN20
4
PCU PWB
DM_Y_LD
Drum motor lock 
detection (Y)
Drum motor lock 
detection (Y)
Normal 
rotation 
state
CN20
6
PCU PWB
DSR_FIN
Finisher communication
Finisher communication 
(Receive enable)
CN4
13
PCU PWB
/DSR_LCC
LCC communication
LCC communication 
(Receive enable)
CN4
16
PCU PWB
DSW_CS
Transport cover open/
close detection
Transport cover open/
close detection
Door open
Door close
CN6
20
PCU PWB
DSW_F
Front door open/close 
detection
Front door open/close 
detection
Door open
Door close
CN11
1
PCU PWB
Signal name
Name [Type]
Function/Operation
Connector level
Connector 
No.
Pin 
No.
PWB name
NOTE
L
H
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