AM-400 (serv.man6). Chapter 4 (Diagrams). - Sharp Copying Equipment Service Manual (repair manual). Page 3

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AM-400DE
4 – 3
[3] Point-to-point diagram
POWER SUPPLY UNIT
HIGH
VOLTAGE
PWB UNIT
OPTICAL
UNIT
(LSU)
LIU PWB UNIT
THERMISTOR
PRINTER
P-IN SENSOR
SCANNER
MOTOR
SPEAKER
PRINTER
MAIN MOTOR
PRINTER
ROLLER
SWITCH
TONER
CARTRIDGE
SENSOR
CONTROL
PWB
UNIT
OPERATION PANEL
PWB UNIT
PRINTER
BYPASS PE
SENSOR
PRINTER
PAPER OUT 1
SENSOR
PRINTER
PAPER OUT 2
SENSOR
PRINTER
TRAY COVER
SENSOR
PRINTER
PICKUP
MOTOR
FAN
CIS
FRONT
SENSOR
ORG
SENSOR
SCANNER
HOME POSITION
SENSOR
CNCIS
1
2
3
4
5
6
7
8
9
10
11
12
Ao
GND
GND
VDD
VREF
SP
CLK
V-LED
B-GND
G-GND
R-GND
N.C.
1
2
3
4
5
6
7
8
9
10
11
12
CNCIS
AO
GND(VDD)
GND
VDD(SEL)
VREF(GND)
SP
CLK
VLED
BLED_GND
GLED_GND
RLED_GND
N.C.
/HOME
GND
/ORGSNS
/FRSNS
GND
CNFRT
1
/FRSNS
2
GND
2
GND
/ORGSNS
GND
1
2
CNORG
1
1
2
2
B
CNSCM
1
A
3
/A
/B
1
2
3
A
B
/A
4
4
/B
SP+
SP-
1
2
1
MA+
2
MB+
CNPUM
3
MA-
4
MB-
MA+
MB+
MA-
1
2
MB-
/PUMBD
5
6
5
VMT
6
VMT
VMT
VFM+
CNLIU
RXIN
1
TXOUT
2
/CI
3
/EXHS
4
DPON
5
CML
6
+5V
7
DG
8
+24VA
9
E-RLY(N.C.)
10
DPMUTE
11
(N.C.)
12
CNLIU
RXIN
TXOUT
/CI
/EXHS
DPON
CML
+5V
DG
+24VA
1
2
3
4
5
6
7
8
9
1
2
PUMBD
3
/PUMAD
1
2
3
4
4
N.C.
2
VFM-
3
1
PUMAD
VMT
+5V
1
RTH
2
/PIN
1
GND
2
PE_BY
1
GND
2
/POUT1
1
GND
2
POUT1_AN
3
/POUT2
1
GND
2
OPEN_TRAY
1
GND
2
CNHPS
GND
1
/HOME
2
CNSP
1
SP+
2
SP-
CNMM
3
PUMBD
1
/PUMBD
2
/PUMAD
4
2
N.C.
CNFM
PUMAD
1
VFM+
3
VFM-
CNRTH
1
+5V
2
RTH
CNPIN
1
/PIN
2
GND
CNBYPE
1
PE_BY
2
GND
CNPOUT1
1
/POUT1
2
GND
3
POUT1_AN
CNPOUT2
1
/POUT2
2
GND
CNTCVR
1
OPEN_TRAY
2
GND
CNPW
MG
1
+24V_SUB
2
MG
3
MG
4
+24V MAIN
5
+24V MAIN
6
DG
7
+5V
8
DG
9
+3.3V
10
/ZC
14
DG
11
/HLON
12
CNPN
E
1
VLED
2
+3.3V
3
DG
4
/STRB7
5
/SEN0
6
/STRB6
7
/SEN1
8
/STRB5
9
/SEN2
10
/STRB4
11
/SEN3
12
/STRB3
13
/STRB0
14
/STRB2
15
TCON
4
+24V
5
/STRB1
16
MCON
3
CNHV
/PWRLY
13
TCT0
4
4
TCT0
CNLSR
DGND
1
-S/H
2
-VIDEO
3
-LDEN
4
DGND
5
+5V
6
DGND
7
-HSYNC
8
CNPM
CLK
1
-READY
2
-START
3
GND
4
+24V
5
3
6
9
12
CNPW
1
MG
2
+24V_SUB
MG
4
MG
5
+24V MAIN
+24V MAIN
7
DG
8
+5VMAIN
/PWRLY
14
/ZC
DG
10
+3.3VMAIN
11
DG
CNPN1
16
E
15
LEDON
14
+3.3V
13
DG
12
/STRB7
11
/SEN0
10
/STRB6
9
/SEN1
8
/STRB5
7
/SEN2
6
/STRB4
5
/SEN3
4
/STRB3
3
/STRB0
2
/STRB2
4
TCON
5
+24V
1
/STRB1
3
MCON
CN1
/HEATER ON
13
TCT1
3
3
TCT1
COM
2
2
COM
CNLSR
1
DGND
2
-S/H
3
-VIDEO
4
-LDEN
5
DGND
6
+5V
7
DGND
8
-HSYNC
CNPM
1
CLK
2
-READY
3
-START
4
GND
5
+24V
PGND
1
1
PGND
PWMSIN
2
2
PWMSIN
TCT2
1
1
TCT2
CNTCT
GND
2
2
GND
/ROLSNS
1
1
/ROLSNS
CNROLSNS
CNLCD1
DG
+3.3V
VO
RS
R/W
E
N.C.
N.C.
N.C.
N.C.
LD0
LD1
LD2
LD3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
2
+3.3V
3
VO
1
DG
RS
5
R/W
6
E
4
7
N.C.
8
N.C.
9
N.C.
10
N.C.
14
LD3
11
LD0
12
LD1
CN2
1
1
1
1
2
LCD
UNIT
13
LD2
2
2
INTERLOCK
SWITCH
CN6
2
CNHT
1
+24VMAIN
2
N.C.
3
L
1
+24VMAIN
1
N
2
N.C.
3
+24VS
FUSING
UNIT
3
L
2
N.C.
3
+24VS
THERMAL
FUSE-2
1
N
2
N.C.
PC
CNUSB
E-RLY(N.C.)
10
DPMUTE
11
(N.C.)
12
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