Sharp MX-M350 Service Manual page 240

MAIN SUB
F2 39 Content Process thermistor trouble
Detail Output value abnormality of the
temperature sensor of temperature/
humidity sensor
Cause Temperature/humidity sensor
abnormality
Temperature/humidity sensor harness
connection failure
PCU PWB trouble
Check and Check connection of the harness and
remedy the connector of the temperature/
humidity sensor.
Replace the temperature/humidity
sensor.
Check PCU PWB.
58 Content Process humidity sensor breakdown
Detail Process humidity sensor open or short
Cause Temperature/humidity sensor harness
connection failure
Temperature/humidity sensor
abnormality
PCU PWB trouble
Check and Check connection of the harness and
remedy the connector of the temperature/
humidity sensor.
Replace the temperature/humidity
sensor.
Check PCU PWB.
F3 12 Content Machine no. 1 tray lift-up trouble
Detail LUD does not turn ON in the specified
time.
Cause LUD trouble
No. 1 tray lift-up trouble
Check connection of harness between
the PCVU PWB, lift-up unit, and paper
feed unit.
Check and Check LUD, and their harness and
remedy connectors.
Check the lift-up unit.
F3 22 Content Machine tray 2 lift-up trouble
Detail MCLUD does not turn ON in the
specified time.
Cause MCLUD trouble
No. 2 tray lift-up motor trouble
Harness disconnection f the PCU
PWB, the lift-up unit, and the paper
feed unit.
Check and Check MCLUD, and their harness and
remedy connectors.
Check the lift-up unit.
F6 00 Content Communication trouble (ICU detection)
between ICU and FAX
Details Communication establishment error/
Fleming/Parity/Protocol error
Cause Slave unit PWB connector
disconnection
Harness abnormality between slave
unit PWB and ICU PWB.
Slave unit PWB mother board
connector pin breakage
Slave unit ROM abnormality/No ROM/
Reverse insertion of ROM/ROM pin
breakable
Check & Check connector harness between
Remedy slave unit PWB and ICU PWB.
Check grounding of machine.
Check slave unit PWB ROM.
Details
MX-M350/M450 N/U TROUBLE CODES 11 - 8
MAIN SUB
F6 01 Content FAX expansion flash memory
abnormality (ICU detection)
Details Flash memory cannot be deleted.
Cause Flash memory cannot be deleted.
Check & Check the FAX image storage Flash
Remedy memory.
Use SIM 66-10 to clear the flash
memory.
04 Content FAX modem operation abnormality
Details FAX PWB modem chip operation
abnormality
Cause Modem chip operation abnormality in
FAX PWB
Check & Replace FAX PWB.
Remedy
20 Content FAX write protect cancel
Detail The write protect JP is released.
Cause The write protect JP is set to "write
allow."
FAX interface PWB trouble
FAX PWB trouble
Check and Check the write protect JP.
remedy Replace the FAX PWB. Replace the
FAX interface PWB.
21 Content Combination abnormality of the TEL/
LIU PWB and the FAX soft switch
Detail Combination abnormality of the TEL/
LIU PWB and the FAX PWB
information (soft switch)
Or the TEL/LIU PWB is not a new one
for new MDMC PWB.
Cause The destination of the installed TEL/LIU
PWB differs.
The FAX PWB information (soft switch)
differs.
TEL/LIU PWB trouble
Check and Check the destination of the TEL/LIU
remedy PWB.
Check the FAX PWB information (soft
switch).
Replace the TEL/LIU PWB.
97 Content FAX-BOX skating trouble
The FAX-BOX PWB is not one for the
AR-FX12. (FAX detection)
Detail The FAX-BOX MODEM controller is not
one for the AR-FX12.
Cause The FAX-BOX Modem controller PWB
information (hard detection) is not for
the AR-FX12. (The Modem controller
PWB for the AR-FX5 or the AR-FX6 is
used.)
Check and Check the FAX-BOX modem controller
remedy PWB.
Replace it with a modem controller
PWB for the AR-FX12.
Details