Read Sharp MX-6500N / MX-7500N (serv.man28) Service Manual online
MX-7500N ELECTRICAL SECTION 14 – 34
CLK_OCACIS
CIS unit communication
CIS unit communication
(Clock)
–
–
CN14
4
PCU PWB
CPFM_CK
Paper feed motor CLK
Paper feed motor CLK
signal
signal
–
–
CN15
12
PCU PWB
CPFM_D
Paper feed motor ON/
OFF
OFF
Paper feed motor ON/
OFF control
OFF control
Motor ON
–
CN15
10
PCU PWB
CPFM_GAIN
Paper feed motor gain
select
select
Paper feed motor gain
select control
select control
–
–
CN15
16
PCU PWB
CPFM_LD
Paper feed motor lock
detection
detection
Paper feed motor lock
detection
detection
Normal
rotation
state
–
CN15
14
PCU PWB
CRM_C_CK
CRUM communication
clock (C)
clock (C)
CRUM communication
clock (C) signal
clock (C) signal
–
–
CN21
7
PCU PWB
CRM_C_DT
CRUM communication
data (C)
data (C)
CRUM communication
data (C) signal
data (C) signal
–
–
CN21
6
PCU PWB
CRM_K_CK
CRUM communication
clock (K)
clock (K)
CRUM communication
clock (K) signal
clock (K) signal
–
–
CN21
3
PCU PWB
CRM_K_DT
CRUM communication
data (K)
data (K)
CRUM communication
data (K) signal
data (K) signal
–
–
CN21
2
PCU PWB
CRM_M_CK
CRUM communication
data (M)
data (M)
CRUM communication
data (M) signal
data (M) signal
–
–
CN21
12
PCU PWB
CRM_M_DT
CRUM communication
clock (M)
clock (M)
CRUM communication
clock (M) signal
clock (M) signal
–
–
CN21
13
PCU PWB
CRM_Y_CK
CRUM communication
data (Y)
data (Y)
CRUM communication
data (Y) signal
data (Y) signal
–
–
CN21
16
PCU PWB
CRM_Y_DT
CRUM communication
clock (Y)
clock (Y)
CRUM communication
clock (Y) signal
clock (Y) signal
–
–
CN21
17
PCU PWB
CTS_PCU
ICU communication
ICU communication
(Send enable)
(Send enable)
–
–
CN22
9
PCU PWB
DEDC_L
Drum encoder
Drum encoder C left
–
–
CN27
11
PCU PWB
DEDC_R
Drum encoder
Drum encoder C right
–
–
CN27
8
PCU PWB
DEDK_L
Drum encoder
Drum encoder K left
–
–
CN27
5
PCU PWB
DEDK_R
Drum encoder
Drum encoder K right
–
–
CN27
2
PCU PWB
DEDM_L
Drum encoder
Drum encoder M left
–
–
CN27
17
PCU PWB
DEDM_R
Drum encoder
Drum encoder M right
–
–
CN27
14
PCU PWB
DEDY_L
Drum encoder
Drum encoder Y left
–
–
CN27
23
PCU PWB
DEDY_R
Drum encoder
Drum encoder Y right
–
–
CN27
20
PCU PWB
DHPD_C
Drum home position (C)
Drum home position (C)
detection
detection
–
Drum
reference
position
CN19
20
PCU PWB
DHPD_K
Drum home position (K)
Drum home position (K)
detection
detection
–
Drum
reference
position
CN18
9
PCU PWB
DHPD_M
Drum home position (M)
Drum home position (M)
detection
detection
–
Drum
reference
position
CN25
9
PCU PWB
DHPD_Y
Drum home position (Y)
Drum home position (Y)
detection
detection
–
Drum
reference
position
CN20
9
PCU PWB
DL2_C
Transfer after-
discharging lamp C
PWM
discharging lamp C
PWM
Transfer after-
discharging lamp C
PWM control
discharging lamp C
PWM control
–
–
CN18
29
PCU PWB
DL2_K
Transfer after-
discharging lamp K
PWM
discharging lamp K
PWM
Transfer after-
discharging lamp K
PWM control
discharging lamp K
PWM control
–
–
CN18
19
PCU PWB
DL2_M
Transfer after-
discharging lamp M
PWM
discharging lamp M
PWM
Transfer after-
discharging lamp M
PWM control
discharging lamp M
PWM control
–
–
CN20
29
PCU PWB
DL2_Y
Transfer after-
discharging lamp Y
PWM
discharging lamp Y
PWM
Transfer after-
discharging lamp Y
PWM control
discharging lamp Y
PWM control
–
–
CN20
19
PCU PWB
DL_C
Discharge lamp C PWM
Discharge lamp C PWM
control
control
–
–
CN18
28
PCU PWB
DL_K
Discharge lamp K PWM
Discharge lamp K PWM
control
control
–
–
CN18
18
PCU PWB
DL_M
Discharge lamp M PWM
Discharge lamp M PWM
control
control
–
–
CN20
28
PCU PWB
DL_Y
Discharge lamp Y PWM
Discharge lamp Y PWM
control
control
–
–
CN20
18
PCU PWB
DM_C_CK
Drum motor CLK (C)
Drum motor CLK (C)
signal
signal
–
–
CN24
14
PCU PWB
DM_C_D
Drum motor ON/OFF
(C)
(C)
Drum motor ON/OFF
(C) control
(C) control
Motor ON
–
CN23
15
PCU PWB
Signal name
Name [Type]
Function/Operation
Connector level
Connector
No.
Pin
No.
No.
PWB name
NOTE
L
H
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