Kyocera KM-C2520 Service Manual page 185

Code
C0440 Document finisher communication
problem (optional document finisher)
A communication error from document
finisher is detected 10 times in succes-
sion.
C0610 Bitmap problem
The DIMM on the main PWB does not
operate correctly.
C0630 DMA problem
DMA transmission of compressed,
decompressed, rotated, relocated or
blanked-out image data does not com-
plete within the specified period of time.
C0640 Hard disk drive problem
The hard disk cannot be accessed.
C0820 Fax control PWB CG ROM checksum
error (optional fax)
A checksum error occurred with the CG
ROM data of the fax control PWB.
C0830 Fax control PWB flash program area
checksum error (optional fax)
A checksum error occurred with the pro-
gram of the fax control PWB.
C0840 Faults of RTC
The time is judged to go back based on
the comparison of the RTC time and the
current time or five years or more have
passed.
C0860 Fax control PWB software switch
checksum error (optional fax)
A checksum error occurred with the soft-
ware switch value of the fax control
PWB.
Contents
Causes Check procedures/corrective measures
Poor contact in the Check the connection of connector YC33 on
connector termi- the engine PWB and the connector on the
nals. finisher main PWB, and the continuity
across the connector terminals. Repair or
replace if necessary.
Defective PWB. Replace the finisher main PWB or engine
PWB and check for correct operation.
Defective main Replace the main PWB and check for cor-
PWB. rect operation.
DDR on the main Check the connection. Repair or replace if
PWB installed necessary.
incorrectly.
Defective main Replace the main PWB and check for cor-
PWB. rect operation.
DDR on the main Check the connection. Repair or replace if
PWB installed necessary.
incorrectly.
Poor contact in the Check the connection of connector YC11 on
connector termi- the main PWB and the connector on the
nals. hard disk, and the continuity across the con-
nector terminals. Repair or replace if neces-
sary.
Defective hard Run U024 (HDD formatting) without turning
disk. the power off to initialize the hard disk (see
page 1-3-10). Replace the hard disk drive
and check for correct operation if the prob-
lem is still detected after initialization.
Defective main Replace the main PWB and check for cor-
PWB. rect operation.
Defective fax soft- Install the fax software.
ware.
Defective fax con- Replace the fax control PWB and verify the
trol PWB. operation.
Defective fax soft- Install the fax software.
ware.
Defective fax con- Replace the fax control PWB and verify the
trol PWB. operation.
Defective main Replace the main PWB and check for cor-
PWB. rect operation.
The battery is dis- Check visually and remedy if necessary.
connected from the
main PWB.
Defective fax soft- Install the fax software.
ware.
Defective fax con- Replace the fax control PWB and verify the
trol PWB. operation.
2FZ/2F0/2HC-3
Remarks
1-4-25