AR-206 (serv.man4). AR163 206-Service Manual - Sharp Copying Equipment Service Manual (repair manual). Page 46

Main 
code

Sub

code

Detail of trouble

F6

88

Content

FAX control PWB communication
trouble (Timeout)

Detail

Communication trouble between
MCU and FAX control PWB
(Timeout error)

Cause

Bad connection of FAX control
PWB connector
Defective harness between FAX
control PWB and MCU PWB
Motherboard connector pin
breakage
FAX control PWB ROM error/Data
error

Check and
remedy

Check connector/harness between
FAX control PWB and MCU PWB.
Check grounding of the machine.
Check FAX control PWB ROM.

F9

00

Content

Communication trouble between
MCU and printer PWB (MCU
detection)

Detail

Communication establishment
error, framing error, parity error,
protocol error

Cause

Bad connection of printer PWB
connector
Defective harness between printer
PWB and MCU PWB.
Motherboard connector pin
breakage
Printer PWB ROM error, data error

Check and
remedy

Check connector/harness of printer
PWB and MCU PWB.
Check grounding of the machine.
Check printer PWB ROM.

10

Content

Printer PWB trouble

Detail

Communication trouble between
MCU and printer PWB

Cause

Bad connection of printer PWB
connector
Defective harness between printer
PWB and MCU PWB.
Motherboard connector pin
breakage
Printer PWB ROM error, data error

Check and
remedy

Check connector/harness of printer
PWB and MCU PWB.
Check grounding of the machine.
Check printer PWB ROM.

80

Content

Printer PWB communication
trouble (Protocol)

Detail

Communication trouble between
MCU and printer PWB (Protocol
error)

Cause

Bad connection of printer PWB
connector
Defective harness between printer
PWB and MCU PWB.
Motherboard connector pin
breakage
Printer PWB ROM error, data error

Check and
remedy

Check connector/harness of printer
PWB and MCU PWB.
Check grounding of the machine.
Check printer PWB ROM.

Main 
code

Sub

code

Detail of trouble

F9

81

Content

Printer PWB communication
trouble (Parity)

Details

Communication trouble between
MCU and printer PWB(Parity error)

Cause

Printer PWB connector
disconnection
Printer PWB MCU PWB harness
failure
Printer PWB mother board
connector pin breakage.
Printer PWB ROM defect,data
failure

Check and
remedy

Check the connectors and harness
of the printer PWB and the MCU
PWB.
Check grounding of the machine.
Check the ROM of the printer
PWB.

82

Content

Printer PWB communication
trouble (Overrun)

Details

Communication trouble between
MCU and printeu PWB(Overrun
error)

Cause

Printer PWB connector
disconnection
Printer PWB MCU PWB harness
failure
Printer PWB mother board
connector pin breakage.
Printer PWB ROM defect,data
failure

Check and
remedy

Check the connectors and harness
of the printer PWB and the MCU
PWB.
Check grounding of the machine.
Check the ROM of the printer
PWB.

84

Content

Printer PWB communication
trouble (Framing)

Details

Communication trouble between
MCU and printer PWB(Framing
error)

Cause

Printer PWB connector
disconnection
Printer PWB MCU PWB harness
failure
Printer PWB mother board
connector pin breakage.
Printer PWB ROM defect,data
failure

Check and
remedy

Check the connectors and harness
of the printer PWB and the MCU
PWB.
Check grounding of the machine.
Check the ROM of the printer
PWB.

88

Content

Printer PWB communication
trouble (Time-out)

Details

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

AR-162 TROUBLE CODE LIST – 5