DOWNLOAD Sharp MX-6500N / MX-7500N (serv.man28) Service Manual ↓ Size: 1.46 MB | Pages: 43 in PDF or view online for FREE

Model
MX-6500N MX-7500N (serv.man28)
Pages
43
Size
1.46 MB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / Section 14 Electrical Section
File
mx-6500n-mx-7500n-sm28.pdf
Date

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

MX-7500N  ELECTRICAL SECTION  14 – 41
SC_ACK
SCU communication 
(Receive)
SCU communication 
(Receive)
CN22
3
PCU PWB
SCK_LSU
LSUASIC 
communication
LSUASIC 
communication (Clock)
CN25
4
PCU PWB
SELIN1
Right door PWB 
multiplex select signal 1
Right door PWB 
multiplex select signal 1
CN12
13
PCU PWB
SELIN2
Right door PWB 
multiplex select signal 2
Right door PWB 
multiplex select signal 2
CN12
15
PCU PWB
SELIN3
Right door PWB 
multiplex select signal 3
Right door PWB 
multiplex select signal 3
CN12
17
PCU PWB
SOCD
DSPF open/close 
detection signal
Detects open/close of 
the DSPF unit.
Close
Open
CN1
13
DSPFcnt
SPPD2
DSPF document pass 
detection 2
Detects paper pass.
Detects 
paper pass.
CN1
9
DSPFcnt
SPPD3
DSPF document pass 
detection 3
Detects paper pass.
Detects 
paper pass.
CN1
11
DSPFcnt
SPPD4
DSPF document pass 
detection 4
Detects paper pass.
Detects 
paper pass.
CN1
10
DSPFcnt
SPPD5
DSPF document pass 
detection 5
Detects paper pass.
Detects 
paper pass.
CN1
12
DSPFcnt
T1LUD
Casette 1 upper limit 
detection
Casette 1 upper limit 
detection
Upper limit
CN2
9
PCU PWB
T1LUM
Tandem tray 1 lift motor
Tandem tray 1 lift motor 
control
Lift
CN2
3
PCU PWB
T1PED
Tandem tray 1 paper 
empty detection
Tandem tray 1 paper 
empty detection
Paper empty
Paper 
presence
CN2
11
PCU PWB
T1PPD1
Tandem tray 1 paper 
entry detection 1
Tandem tray 1 paper 
entry detection 1
Paper 
presence
Paper empty
CN2
16
PCU PWB
T1PPD2
Tandem tray 1 paper 
entry detection 2
Tandem tray 1 paper 
entry detection 2
Paper 
presence
CN2
22
PCU PWB
T1PUC
Tandem tray 1 paper 
feed clutch
Tandem tray 1 paper 
feed clutch control
Clutch ON
CN15
1
PCU PWB
T1PUS
Tandem tray 2 paper 
feed pickup solenoid
Tandem tray 2 paper 
feed pickup solenoid 
control
Solenoid ON
CN2
4
PCU PWB
T1SPD
Tandem tray 1 paper 
remaining quantity 
detection
Tandem tray 1 paper 
remaining quantity 
detection
CN2
15
PCU PWB
3-step 
remaining 
quantity 
detection 
according to 
cassette lifting 
(L to H to L)
T2LUD
Casette 2 upper limit 
detection
Casette 2 upper limit 
detection
Upper limit
CN2
10
PCU PWB
T2LUM
Casette 2 lift motor
Casette 2 lift motor 
control
Motor ON
CN15
23
PCU PWB
T2PED
Tandem tray 2 paper 
empty detection
Tandem tray 2 paper 
empty detection
Paper empty
Paper 
presence
CN2
12
PCU PWB
T2PPD1
Tandem tray 2 transport 
detection
Tandem tray 2 transport 
detection
Paper 
presence
CN6
11
PCU PWB
T2PUC
Tandem tray 2 paper 
feed clutch
Tandem tray 2 paper 
feed clutch control
Clutch ON
CN15
5
PCU PWB
T2PUS
Casette 2 pickup 
solenoid
Casette 2 pickup 
solenoid control
Solenoid ON
CN15
19
PCU PWB
T2SPD
Tandem tray 2 paper 
remaining quantity 
detection
Tandem tray 2 paper 
remaining quantity 
detection
CN2
21
PCU PWB
3-step 
remaining 
quantity 
detection 
according to 
cassette lifting 
(L to H to L)
TBFM_LD
Toner bottle fan lock 
detection
Toner bottle fan motor 
lock detection
Normal 
rotation 
state
CN12
4
PCU PWB
TBFM_V
Toner bottle fan ON/OFF
Toner bottle fan motor 
ON/OFF control
Fan  motor 
ON
CN12
2
PCU PWB
/TC1_CLK
Primary transfer high 
voltage serial clock
Primary transfer high 
voltage serial clock 
signal
CN23
8
PCU PWB
/TC1_DATA
Primary transfer high 
voltage serial data
Primary transfer high 
voltage serial data 
signal
CN23
6
PCU PWB
/TC1_LD
Primary transfer high 
voltage serial latch
Primary transfer high 
voltage serial latch 
signal
CN23
10
PCU PWB
Signal name
Name [Type]
Function/Operation
Connector level
Connector 
No.
Pin 
No.
PWB name
NOTE
L
H
MX-7500N  ELECTRICAL SECTION  14 – 42
/TC2_CLK
Secondary transfer high 
voltage serial clock
Secondary transfer high 
voltage serial clock 
signal
CN12
32
PCU PWB
/TC2_DATA
Secondary transfer high 
voltage serial data
Secondary transfer high 
voltage serial data 
signal
CN12
34
PCU PWB
/TC2_LD
Secondary transfer high 
voltage serial latch
Secondary transfer high 
voltage serial latch 
signal
CN12
30
PCU PWB
TCS_C
Toner concentration 
sensor C
Toner concentration 
sensor C detection
CN17
14
PCU PWB
Analog
TCS_K
Toner concentration 
sensor BK
Toner concentration 
sensor BK detection
CN17
7
PCU PWB
Analog
TCS_M
Toner concentration 
sensor M
Toner concentration 
sensor M detection
CN17
21
PCU PWB
Analog
TCS_Y
Toner concentration 
sensor Y
Toner concentration 
sensor Y detection
CN17
28
PCU PWB
Analog
TFD2
Main unit paper exit tray 
full detection
Main unit paper exit tray 
full detection
Full state
CN10
13
PCU PWB
TFSD_C
Toner remaining 
quantity detection (C)
Toner remaining 
quantity detection (C)
Toner empty 
state
CN21
22
PCU PWB
TFSD_K
Toner remaining 
quantity detection (K)
Toner remaining 
quantity detection (K)
Toner empty 
state
CN21
19
PCU PWB
TFSD_M
Toner remaining 
quantity detection (M)
Toner remaining 
quantity detection (M)
Toner empty 
state
CN21
25
PCU PWB
TFSD_Y
Toner remaining 
quantity detection (Y)
Toner remaining 
quantity detection (Y)
Toner empty 
state
CN21
28
PCU PWB
TH1_LSU
LSU thermistor 1
LSU thermistor 1 
detection
CN25
15
PCU PWB
Analog
TH2_LSU
LSU thermistor 2
LSU thermistor 2 
detection
CN25
17
PCU PWB
Analog
TH_LM
Fusing thermistor lower 
main non-contact 
detection
Fusing thermistor lower 
main non-contact 
detection
CN9
19
PCU PWB
Analog
TH_LM2
Fusing thermistor lower 
main 2
Fusing thermistor lower 
main 2
CN9
29
PCU PWB
Analog
TH_LM_CS
Fusing thermistor lower 
main non-contact 
compensation
Fusing thermistor lower 
main non-contact 
compensation
CN9
21
PCU PWB
Analog
TH_M
Temperature sensor
Temperature detection
CN25
27
PCU PWB
Analog
TH_UM
Fusing thermistor upper 
main non-contact 
detection
Fusing thermistor upper 
main non-contact 
detection
CN9
7
PCU PWB
Analog
TH_UM_CS
Fusing thermistor upper 
main non-contact 
compensation
Fusing thermistor upper 
main non-contact 
compensation
CN9
9
PCU PWB
Analog
TH_US
Fusing thermistor upper 
sub non-contact 
detection
Fusing thermistor upper 
sub non-contact 
detection
CN9
13
PCU PWB
Analog
TH_US2
Fusing thermistor upper 
sub 2
Fusing thermistor upper 
sub 2
CN9
25
PCU PWB
Analog
TH_US_CS
Fusing thermistor upper 
sub non-contact 
compensation
Fusing thermistor upper 
sub non-contact 
compensation
CN9
15
PCU PWB
Analog
TNDSET
Tandem tray close 
detection
Tandem tray close 
detection
Tray open
Tray close
CN6
8
PCU PWB
TRANS_DAT
LSUASIC 
communication
LSUASIC 
communication (Send)
CN25
5
PCU PWB
TRANS_RST
LSUASIC 
communication
LSUASIC 
communication (Send)
CN25
9
PCU PWB
TRC_LCC
LCC communication
LCC communication
CN4
22
PCU PWB
TSG_C#
Toner density sensor 
(ATC) gain
Toner density sensor 
(ATC) gain control
CN17
12
PCU PWB
Analog
TSG_K#
Toner density sensor 
(ATC) gain
Toner density sensor 
(ATC) gain control
CN17
5
PCU PWB
Analog
TSG_M#
Toner density sensor 
(ATC) gain
Toner density sensor 
(ATC) gain control
CN17
19
PCU PWB
Analog
TSG_Y#
Toner density sensor 
(ATC) gain
Toner density sensor 
(ATC) gain control
CN17
26
PCU PWB
Analog
TTRC
Tandem transport clutch
Tandem transport clutch 
control
Clutch ON
CN15
9
PCU PWB
/TxD_FIN
Finisher communication 
(Send)
Finisher communication 
(Send)
CN4
7
PCU PWB
Signal name
Name [Type]
Function/Operation
Connector level
Connector 
No.
Pin 
No.
PWB name
NOTE
L
H
MX-7500N  ELECTRICAL SECTION  14 – 43
/TxD_LCC
LCC communication 
(Send)
LCC communication 
(Send)
CN4
10
PCU PWB
TXD_OCACIS
CIS unit communication
CIS unit communication 
(Send)
CN14
7
PCU PWB
TxD_PCU
ICU communication
ICU communication 
(Receive)
CN22
13
PCU PWB
WEBEND1
Fusing wed end 
detection 1
Fusing wed end 
detection 1
Wed end 
detection
CN9
10
PCU PWB
WEBEND2
Fusing wed end 
detection 2
Fusing wed end 
detection 2
Wed end 
detection
CN9
16
PCU PWB
WH_CNT
Dehumidifier heater 
control signal
Dehumidifier heater 
control signal
Dehumidifier 
heater OFF
Dehumidifier 
heater ON
CN4
23
PCU PWB
WTBSET
Waste toner box 
installation detection
Waste toner box 
installation detection
Waste toner 
box installed
CN6
3
PCU PWB
WTFD
Waste toner full 
detection
Waste toner full 
detection
Waste toner 
full
CN6
5
PCU PWB
WTM_CK
Waste toner motor CLK
Waste toner motor CLK
CN6
24
PCU PWB
WTM_D
Waste toner motor ON/
OFF
Waste toner motor ON/
OFF control
Motor ON
CN6
25
PCU PWB
WTM_LD
Waste toner motor lock 
detection
Waste toner motor lock 
detection
Motor 
normal 
rotation 
state
CN6
22
PCU PWB
Signal name
Name [Type]
Function/Operation
Connector level
Connector 
No.
Pin 
No.
PWB name
NOTE
L
H
MX-7500N  ELECTRICAL SECTION  14 – 43
/TxD_LCC
LCC communication 
(Send)
LCC communication 
(Send)
CN4
10
PCU PWB
TXD_OCACIS
CIS unit communication
CIS unit communication 
(Send)
CN14
7
PCU PWB
TxD_PCU
ICU communication
ICU communication 
(Receive)
CN22
13
PCU PWB
WEBEND1
Fusing wed end 
detection 1
Fusing wed end 
detection 1
Wed end 
detection
CN9
10
PCU PWB
WEBEND2
Fusing wed end 
detection 2
Fusing wed end 
detection 2
Wed end 
detection
CN9
16
PCU PWB
WH_CNT
Dehumidifier heater 
control signal
Dehumidifier heater 
control signal
Dehumidifier 
heater OFF
Dehumidifier 
heater ON
CN4
23
PCU PWB
WTBSET
Waste toner box 
installation detection
Waste toner box 
installation detection
Waste toner 
box installed
CN6
3
PCU PWB
WTFD
Waste toner full 
detection
Waste toner full 
detection
Waste toner 
full
CN6
5
PCU PWB
WTM_CK
Waste toner motor CLK
Waste toner motor CLK
CN6
24
PCU PWB
WTM_D
Waste toner motor ON/
OFF
Waste toner motor ON/
OFF control
Motor ON
CN6
25
PCU PWB
WTM_LD
Waste toner motor lock 
detection
Waste toner motor lock 
detection
Motor 
normal 
rotation 
state
CN6
22
PCU PWB
Signal name
Name [Type]
Function/Operation
Connector level
Connector 
No.
Pin 
No.
PWB name
NOTE
L
H
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Sharp MX-6500N / MX-7500N (serv.man28) Service Manual ▷ Download