MX-6500N, MX-7500N (serv.man28). Section 14 Electrical Section - Sharp Copying Equipment Service Manual (repair manual). Page 38

Read Sharp MX-6500N / MX-7500N (serv.man28) Service Manual online

MX-7500N  ELECTRICAL SECTION  14 – 38
LPPD
LCC paper entry 
detection
LCC paper entry 
detection
Paper 
presence
–
CN6
14
PCU PWB
LSU_RST
LSUASIC 
communication
LSUASIC 
communication (LSU 
reset)
–
–
CN25
7
PCU PWB
LSUSS_CL
LSU  shutter solenoid
Operate the LSU shutter 
solenoid
Solenoid ON
–
CN25
29
PCU PWB
MC_BK_ERR
Main charger BK error
Main charger BK error 
detection
High voltage 
error state
–
CN23
17
PCU PWB
MC_CL_ERR
Main charger CL error
Main charger CL error 
detection
High voltage 
error state
–
CN23
19
PCU PWB
/MC_CLK
MC high voltage serial 
clock
MC high voltage serial 
clock signal
–
–
CN23
9
PCU PWB
/MC_DATA
MC high voltage serial 
data
MC high voltage serial 
data signal
–
–
CN23
7
PCU PWB
/MC_LD
MC high voltage serial 
latch
MC high voltage serial 
latch signal
–
–
CN23
11
PCU PWB
/MC_LD2
MC high voltage serial 
latch 2
MC high voltage serial 
latch 2
–
–
CN23
13
PCU PWB
MHPS Scanner 
home 
position 
sensor [Transmission 
type]
Scanner home position 
detection
–
Home 
position
CN17
1
SCN-
MotherCNT
ON for 
5VL_5VO only
MIM_*
Scanner motor 
[Stepping motor]
Scanner (reading) 
section
–
–
CN2
1,  2, 
3, 4 
SCN-
MotherCNT
ON for 5VO only
MPFD
Manual feed paper entry 
detection
Manual feed paper entry 
detection
Paper 
presence
–
CN12
29
PCU PWB
MPFS
Manual paper feed take-
up solenoid
Manual paper feed take-
up solenoid control
Solenoid ON
–
CN12
18
PCU PWB
MPGS
Manual paper feed gate 
solenoid
Manual paper feed gate 
solenoid control
Solenoid ON
–
CN12
20
PCU PWB
MPUC
Manual paper feed 
clutch
Manual paper feed 
clutch control
Clutch ON
–
CN10
1
PCU PWB
MPWD
Manual paper feed size 
detection
Manual paper feed size 
detection
–
–
CN12
23
PCU PWB
Analog
n_GINC
PDFS unit setting
PDFS unit setting
–
–
CN14
14
PCU PWB
nBD
LSU synchronization 
detection signal (BD 
signal)
Detects synchronization 
in the main scanning 
direction of the LSU.
Detection
–
CN500
5
LSU-CNT
nGCSgcs
PDFS unit setting
PDFS unit setting
–
–
CN14
12
PCU PWB
nINFO_FAX_LED
FAX notifying LED 
signal
Detects that FAX is 
receiving or not.
Light
OFF
CN3
1
SCN-
MotherCNT
nJOBEND_INT_C
LSU ASIC interruption
LSU ASIC interruption 
(C) detection
C 
interruption
–
CN25
13
PCU PWB
nJOBEND_INT_K
LSU ASIC interruption
LSU ASIC interruption 
(K) detection
K 
interruption
–
CN25
14
PCU PWB
nJOBEND_INT_M
LSU ASIC interruption
LSU ASIC interruption 
(M) detection
M 
interruption
–
CN25
12
PCU PWB
nJOBEND_INT_Y
LSU ASIC interruption
LSU ASIC interruption 
(Y) detection
Y 
interruption
–
CN25
11
PCU PWB
nOFF_CNT
+5VL power OFF signal
Turns OFF the +5VL 
power.
Power ON
Power OFF
CN1020
1, 4
SCN-
MotherCNT
nPCU_TRG
LSU communication
LSU communication 
(Trigger signal)
–
–
CN25
16
PCU PWB
nPOLY_CK
Polygon motor clock 
signal
Controls the speed of 
the polygon motor.
–
–
CN500
15
LSU-CNT
nPOLY_LOCK
Polygon motor lock 
signal
Polygon motor lock 
detection
–
Lock 
detection
CN500
14
LSU-CNT
Pulse (duty) 
drive
nPOLY_START
Polygon motor ON 
signal
Drives the polygon 
motor of the LSU unit.
Drive
Stop
CN500
13
LSU-CNT
nPOW_LED_G
Main power LED signal
Checks that the main 
power is supplied or not.
Green ON
Orange ON
CN3
5
SCN-
MotherCNT
nPWR_SW
Power switch signal
Detects power ON/OFF.
Detection
–
CN3
2
SCN-
MotherCNT
nRSV_DAT
LSUASIC 
communication
LSUASIC 
communication 
(Receive)
–
–
CN25
8
PCU PWB
nRY_CNT
Main system power OFF 
signal
Turns OFF all the 
powers except for the 
+5VO and the +5VL.
Power ON
Power OFF
CN1020
2, 5
SCN-
MotherCNT
nTRANS_DAT
LSUASIC 
communication
LSUASIC 
communication (Send)
–
–
CN25
5
PCU PWB
nTRANS_RST
LSUASIC 
communication
LSUASIC 
communication 
(Communication reset)
–
–
CN25
9
PCU PWB
Signal name
Name [Type]
Function/Operation
Connector level
Connector 
No.
Pin 
No.
PWB name
NOTE
L
H
Display
Click on the first or last page to see other MX-6500N / MX-7500N (serv.man28) service manuals if exist.
Random: