Sharp MX-2300 G

MX-2300/2700 N/G SELF DIAG AND TROUBLE CODE 8 – 12
E7-50 Engine connection trouble
E7-55 PWB information sum error (Engine
detection)
E7-60 Controller connection trouble (Engine
detection)
E7-61 Controller connection trouble
(Engine)
E7-62 Controller connection trouble
(Scanner)
E7-65 PWB information sum error (Control-
ler detection)
E7-70 Scanner connection trouble
E7-75 PWB information sum error (Scanner
detection)
E7-80 Communication trouble between the
controller and the scanner
Trouble content Unknown PWB identification information is detected in
the PCU PWB.
Section PCU
Case 1 Cause A PWB which is incompatible with the machine
specifications is connected.
Check
and
remedy
1) Replace the PCU PWB.
2) Replace the LSU PWB.
Case 2 Cause A firmware which is incompatible with the machine
specifications is used.
Check
and
remedy
Check the kind and the version of the firmware.
Trouble content EEPROM PWB information sum error
Section PCU
Case 1 Cause 1) EEPROM device error
2) EEPROM device contact failure
3) Device access error due to noises
Check
and
remedy
Replace the PCU PWB.
Trouble content Unknown PWB kind information is detected in the
MFPcnt PWB.
A PWB/firmware which is not compatible with the
machine specifications is connected.
Section MFP
Case 1 Cause Controller PWB trouble
Check
and
remedy
Replace the controller PWB.
Case 2 Cause A firmware which is not compatible with the machine
specifications is applied.
Check
and
remedy
Check the kind and the version of the firmware.
Trouble content MFPcnt PWB connection trouble
Compatibility trouble between the controller and the
engine
Section MFP
Case 1 Cause Combination trouble of the controller PWB and the
engine
Check
and
remedy
Check the controller PWB.
Check the combination between the controller PWB
and the engine.
Trouble content Controller connection trouble
Compatibility trouble between the controller and the
scanners
Section MFP
Case 1 Cause Combination trouble between the controller PWB and
the engine
Check
and
remedy
Replace the controller PWB.
Check the combination between the controller PWB
and the engine.
Trouble content EEPROM PWB information sum error
Section MFP
Case 1 Cause 1) EEPROM device trouble
2) EEPROM device contact failure
3) Device access error due to noises
Check
and
remedy
Replace the MFPcnt PWB.
Trouble content Unknown identification information is detected in the
SCU PWB.
Section SCU
Case 1 Cause SCU PWB trouble
Check
and
remedy
Replace the SCU PWB.
Case 2 Cause A firmware which is incompatible with the machine
specifications is connected.
Check
and
remedy
Check the kind and the version of the firmware.
Trouble content EEPROM PWB information sum error
Section SCU
Case 1 Cause 1) EEPROM device trouble
2) EEPROM device contact failure
3) Device access error due to noises
Check
and
remedy
Replace the scanner control PWB.
Trouble content Communication trouble between the MFP and the
scanner MFP detection
Communication establishment error/Framing/Parity/
Protocol error
Section MFP
Case 1 Cause SCU PWB connector connection trouble
Check
and
remedy
Check the connector connection between the SCU
PWB and the MFPcnt PWB.
Case 2 Cause Harness trouble between the SCU PWB and the
MFPcnt PWB
Check
and
remedy
Check the harness between the SCU PWB and the
MFPcnt PWB.
Case 3 Cause Broken connector pin of the SCU PWB mother board
Check
and
remedy
Check grounding of the machine.