Full Wave Signal Detection Error; Full Wave Signal Width Abnormality; Power Controller Communication Trouble; Pci Communication Error - Sharp MX-M264U Service Manual

L8-01

Full wave signal detection error

Trouble content The full wave signal is not detected.
Detail PCU
Cause PCU PWB trouble.
Power unit trouble.
Connection trouble of the connector and the harness.
Check & Remedy Replace the PCU PWB.
Replace the power unit.
Check connection of the connector and the harness.
L8-02

Full wave signal width abnormality

Trouble content The full wave signal frequency is judged as abnormal.
(The detected freauency is over 65Hz or below
45Hz.)
Detail PCU
Cause PCU PWB trouble.
Power unit trouble.
Harness trouble.
Check & Remedy Replace the PCU PWB.
Replace the power unit.
Check connection of the connector and the harness.
L8-20 Power controller communication
trouble
Trouble content Communication establishment error / Framing /
Parity / Protocol error
Detail MFP
Cause PCU PWB - MFPC PWB connector connection
trouble.
Broken connector pin of the PCU PWB of the MFPC
PWB.
Check & Remedy Replace the PCU PWB.
Check connector connection between the PCU PWB
and the MFPC PWB.
Check the ground of the main unit.
P1-00

PCI communication error

Trouble content
Detail MFP
Cause Communication error between the MFPC PWB and
the PCI.
Connection failure of connectors and harness
between the MFPC PWB and the PCI.
MFPC PWB trouble.
PCI control PWB trouble.
Check & Remedy Check connection of the harness and connectors
between the MFPC PWB and the PCI.
Check the MFPC PWB, and replace if necessary.
(Refer to the necessary procedures after replacement
of the MFPC PWB in the Service Manual, and
perform the procedures.)
Check the PCI control PWB, and replace if
necessary.
P1-01

PCI fan error

Trouble content
Detail MFP
Cause The PCI fan operation signal is not detected.
PCI fan trouble.
PCI control PWB trouble.
Check & Remedy Check connection of the connectors and harness
between the PCI fan and the PCI control PWB.
Check the PCI control PWB, and replace if
necessary.
Check the PCI fan, and replace if necessary.
P1-02
Trouble content
Check & Remedy
PC--
Trouble content
Check & Remedy
U1-01
Trouble content
Case 1
U2-00
Trouble content
Check & Remedy
U2-05
Trouble content
Check & Remedy
MX-M264U TROUBLESHOOTING 7 – 16

Plasma generating device error

Detail MFP
Cause Connection failure of connectors and harness
between the plasma generating device and the PCI
control PWB.
Plasma generating device trouble.
PCI control PWB trouble.
Check connection of the connectors and harness
between the plasma generating device and the PCI
control PWB.
Replace the plasma generating device.
Check the PCI control PWB, and replace if
necessary.

Personal counter not detected

Detail MFP
Cause The personal counter is not installed.
The personal counter is not detected.
SCU PWB trouble.
Check connection of the connectors and the harness.
Replace the SCU PWB.

Battery trouble

RTC backup battery voltage fall
Detail MFP
Cause 1) Battery life
2) Battery circuit abnormality
Check Check to confirm that the battery voltage is about
and 2.5V or above.
Remedy Replace the battery.

MFP EEPROM read/write error

Detail MFP
Cause MFPC PWB EEPROM trouble
EEPROM socket contact trouble
MFPC PWB trouble
Strong external noises.
Replace the MFPC PWB EEPROM.
Replace the MFPC PWB.
(Refer to the pages on the necessary works after
replacing the MFPC PWB in the Service Manual, and
perform the works.)
Check the power environment.
SD/MFPC PWB SRAM contents
inconsistency
The SD card or the MFPC PWB installed is improper.
(Erroneous detection of account management data)
Detail MFP
Cause The SD card was replaced.
The MFPC PWB was replaced.
SD card trouble
MFPC PWB trouble
Refer to the pages on the necessary works after
replacing the SD and the MFPC PWB in the Service
Manual, and perform the works.
Use SIM16 to cancel the error.