AR-206 (serv.man4). AR163 206-Service Manual - Sharp Copying Equipment Service Manual (repair manual). Page 44

Main 
code

Sub

code

Detail of trouble

E1

82

Check and
remedy

Check the connectors and harness
of the E-Sort PWB and the MCU
PWB.
Check grounding of the machine.
Check the ROM of the E-Sort
PWB.

84

Content

E-Sort PWB communication
trouble (Framing)

Detail

Communication trouble between
MCU and E-Sort PWB (Framing
error)

Cause

E-Sort PWB connector
disconnection
E-Sort PWB MCU PWB harness
failure
E-Sort Motherboard connector pin
breakage.
E-Sort PWB ROM defect, data
failure

Check and
remedy

Check the connectors and harness
of the E-Sort PWB and the MCU
PWB.
Check grounding of the machine.
Check the ROM of the E-Sort
PWB.

88

Content

E-Sort PWB communication
trouble (Time-out)

Detail

Communication trouble between
MCU and E-Sort PWB (Time-out
error)

Cause

E-Sort PWB connector
disconnection
E-Sort PWB and MCU PWB
harness failure
E-Sort Motherboard connector pin
breakage.
E-Sort PWB ROM defect, data
failure

Check and
remedy

Check the connectors and harness
of the E-Sort PWB and the MCU
PWB.
Check grounding of the machine.
Check the ROM of the E-Sort
PWB.

E7

03

Content

LSU trouble

Detail

After the polygon motor becomes
active, BD signal (HSYNC) from
the LSU is not detected at the
specified times (41 

±

 10 times

within 20msec).

Cause

LSU connector disconnection or
LSU’s inside harness
disconnection or breakage
Polygon motor rotation abnormality
Improper positioning of the laser
home position sensor in the LSU.
Laser power voltage failure
Laser emitting diode abnormality
MCU PWB abnormality

Main 
code

Sub

code

Detail of trouble

E7

03

Check and
remedy

Improper connection of the LSU
connector
Check the polygon motor
operation with SIM 25-10.
Check printing with SIM64-1.
Check laser emission of laser
emitting diode.
Check the LSU unit.
Check the MCU PWB.

04

Content

CCD white level trouble

Detail

CCD white reference level which
is read during the copy lamp
lighting is abnormal.

Cause

Flat cable installation failure to
CCD unit
Dirt on the mirror, lens, and
reference white plate
Copy lamp lighting failure
CCD unit installation failure
CCD unit abnormality
MCU PWB abnormality

Check and
remedy

Clean the mirror, the lens, and the
reference white plate. 
Check the copy lamp (SIM 5-3)
ON.
Carriage unit position failure
Check the sub scanning direction
distortion adjustment (F rail height).
CCD unit check
MCU PWB check

05

Content

CCD black level trouble

Detail

CCD black level which is read
while the copy lamp is off is
abnormal.

Cause

Flat cable installation failure
CCD unit abnormality
MCU PWB abnormality

Check and
remedy

Check flat cable installation to the
CCD unit.
CCD unit check
MCU PWB check

F1

06

Content

Shifter motor trouble

Details

The home position is not detected
within 1 sec after shifter motor
drive.

Cause

The shifter home position sensor
is defective.
The shifter motor is defective.
The shifter motor periphery circuit
is defective.
The condition of the MCU PWB
JP4 is wrong.
The assembly of the shifter motor
unit is improper.

Check and
remedy

Check the shifter operation by
means of SIM3-2 and 3.
Check the harnesses and
connectors.
Check whether the shifter unit is
properly assembled.
Check whether the condition of
the MCU PWB JP4 is correct.

AR-162 TROUBLE CODE LIST – 3