Read Sharp AR-405 (serv.man8) Service Manual online
B. PWB location
No.
Name
Function, operation
1
Operation key PWB L
Key input
2
LCD unit
Operation input, machine
state display
state display
3
Operation key PWB R
Key input
4
Invertor PWB
LCD backlight control
5
Operation control PWB
Operation input, display
control
control
6
CCD PWB
Document image input
7
Fusing interface PWB
Fusing unit, PCU interface
8
Copy lamp lighting PWB
Copy lamp lighting control
9
Copy lamp lighting interface
PWB
PWB
Copy lamp, PCU interface
10
Document size detecting
PWB (Light emitting side)
PWB (Light emitting side)
Document size detection
11
Scanner driver PWB
Optical system scanner unit
drive
drive
12
PCU PWB
Overall control of the copier
and options
and options
13
Interface PWB
No.
Name
Function, operation
14
AC power PWB
AC power input
15
DC power PWB
DC power supply
16
High voltage PWB
Process high voltage, bias
voltage supply
voltage supply
17
Lift-up motor PWB
Paper tray bottom plate lift
up
up
18
Paper transport sensor PWB
Paper transport detection
19
Multi feed tray paper size
detection PWB
detection PWB
Document size detection
20
Process thermistor PWB
Temperature detection in
the process unit
the process unit
21
Document size detecting
PWB (Light receiving side)
PWB (Light receiving side)
Document size detection
22
Discharge lamp PWB
OPC drum discharge
23
Drum marking sensor PWB
24
Process control PWB
25
ICU PWB
13
1
2
3
4
5
6
7
8
9
10
11
12
14
15
16
17
18
25
19
20
21
22
23
24
AR-405
1/21/1999
6 – 13
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