DOWNLOAD Sharp AL-2021 Service Manual ↓ Size: 12.48 MB | Pages: 120 in PDF or view online for FREE

Model
AL-2021
Pages
120
Size
12.48 MB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / Service Manual
File
al-2021.pdf
Date
PREV: Sharp AL-2020 (serv.man20) Service Manual / Technical Bulletin

Sharp AL-2021 Service Manual ▷ View online

AL-2041  ELECTRICAL SECTION  13 - 5
PSW
Start button control  
 
Operation section  
/RRS
1st transport solenoid  
 
Paper transport section  
RTH_IN
Thermistor  
Fusing section thermistor temperature detection
Fusing section
SELIN1
Select signal 1  
HC151 select signal  
Operation section  
SELIN2
Select signal 2  
HC151 select signal  
Operation section  
SELIN3
Select signal 3  
HC151 select signal  
Operation section  
SHOLD
Laser  
Laser APC signal  
LSU  
SPID
SPID sensor  
SPF UN paper entry sensor  
SPF section
SPMT_0
SPF motor  
SPF motor phase control  
SPF section
SPMT_1
SPF motor  
SPF motor phase control  
SPF section
SPMT_2
SPF motor  
SPF motor phase control  
SPF section
SPMT_3
SPF motor  
SPF motor phase control  
SPF section
SPPD
SPPD sensor  
SPF transport detection  
SPF section
STROBE
LED driver control  
 
Operation section  
/SYNC
Laser  
Horizontal sync signal from the LSU  
LSU  
/TC
HV TC signal  
Transfer charger grid control  
Process section  
TCS
Toner sensor  
Toner quantity detection  
Developing section  
TMA_O
Toner motor  
Toner motor phase control  
Toner motor drive section  
TMB_O
Toner motor  
Toner motor phase control  
Toner motor drive section  
USB +D
USB signal
USB section  
USB -D
USB signal
USB section  
VCL
Copy lamp  
Copy lamp control  
Scanner unit section  
/VFMCNT
Fan speed signal  
Fan rotation speed control  
Optical section  
VFMOUT
Fusing fan  
Fan drive signal  
Optical section  
/VIDEO
Laser  
Laser drive signal  
LSU  
(VSAMP)
AFE  
AFE control signal  
Scanner unit section  
Signal name
Name
Function/Operation
 Section
AL-2041   CIRCUIT DIAGRAM  14 - 1
[14] CIRCUIT DIAGRAM
1. MCU PWB
820J820J
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
1/14
CPU section
AL-2041   CIRCUIT DIAGRAM  14 - 2
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
2/14
Memor
y section
AL-2041   CIRCUIT DIAGRAM  14 - 3
3V
3
5V le
vel con
ver
sion
OPE I/F cir
cuit
5V
3
3V le
vel con
ver
sion/3V series Buff
er
100J
NM_C
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
3/14
Buff
er section
MIR/SPF Selector
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