Sharp AR-M550U - Page 366

AR-M550/M620/M700 SELF DIAG MESSAGE AND TROUBLESHOOTING 9 - 11
Main
code
Sub
code
Title
HDD trouble
E7 03 Phenomenon Display Lamp
Message
Details HDD trouble
Data abnormality in the
HDD file management
area (cluster chain
corrupted)
The HDD sends an error
response or does not
respond for 30 sec.
Section Controller
Operation
mode
Note
Case 1 Trouble
position/
Cause
The HDD is not installed
properly to the MFP
control PWB.
Remedy Check installation of the
HDD to the MFP control
PWB.
Note
Case 2 Trouble
position/
Cause
The HDD of the MFP
control PWB does not
operate properly.
Remedy Check connection of the
harness to the HDD of
the MFP control PWB.
Use SIM 62-2, -3 to
check read/write of the
HDD.
Replace the HDD.
Note
Case 3 Trouble
position/
Cause
MFP control ASIC PWB
abnormality
Remedy Replace the MFP control
PWB.
Note
Main
code
Sub
code
Title Decode error trouble
E7 06 Phenomenon Display Lamp
Message
Details Decode error trouble
A decode error occurs in
making an image.
Section Controller
Operation
mode
Note
Case 1 Trouble
position/
Cause
Garbled data in input
from PCI to PM
DM trouble
Data are garbled in image
compression/transfer.
Remedy Check installation of the
PWB. (PCI bus)
If the job at occurrence is
FAX, check installation of
the FAX PWB.
For the other cases,
check the MFP control
PWB.
Note
Case 2 Trouble
position/
Cause
MFP control ASIC PWB
abnormality
Remedy Replace the MFP control
PWB.
Main
code
Sub
code
Title
CCD shading trouble (Black
correction)
E7 10 Phenomenon Display Lamp
Message
Details Shading trouble (Black
correction)
CCD black scan level
abnormality when the
copy lamp is turned off.
When the proper offset
setup value is not
obtained at turning on the
power or CCD shading
with SIM 63-2.
Section Scanner
Operation
mode
Note
Case 1 Trouble
position/
Cause
Defective installation of
the flat cable to the CCD
unit
Remedy Check installation of the
flat cable to the CCD unit.
Note
Case 2 Trouble
position/
Cause
CCD unit abnormality
Remedy CCD unit check
Note
Case 3 Trouble
position/
Cause
Scanner PWB
abnormality
Remedy Scanner PWB check
Note