Lexmark C752 Service Manual page 41

Error code
955 Code CRC <loc>
956 Service WXYZ
System Board
957 System Board ASIC Failure
958 NAND Failure
960 RAM Memory Error
961 RAM Memory Error
964 Emulation Error
975 Standard Network
or
Network Card x
976 Standard Network
978 Standard Network
or
Network Card x
979 Standard Network
or
Network Card X
980 <device> comm
981 <device> comm
982 <device> comm
Action
System board - This error indicates that the Code ROM or NAND failed
the CRC check. The location of the failure is indicated by <loc>. Replace
the system board. See "System board" on page
A four digit code displays (WXYZ). Replace the system board. See
"System board" on page
Replace the system board. See
Replace the system board. See
RAM soldered on board is bad. Replace the system board. See
board" on page 4-67.
There is an error in the memory installed in the memory option slot on the
system board. If another memory option is available, switch the memory
options to isolate the problem. If you do not have a spare memory option
to switch, then replace the memory installed. If this does not fix the
problem, replace the "System board" on page
Download emulation CRC failure has occurred. The following actions
may be taken:
1. Disable the Download Emulation
2. Program the download emulation into the code overlay SIMM, again.
3. If the problem is not resolved, replace the code overlay SIMM and
download emulation, again.
Unrecognizable network Errors 975 through 979 indicate a failure with
the standard network port located on the system board or a network card
in the specified slot x, x=1, 2 or 3. Replace the card in the specified slot.
Unrecoverable software or error in network for network card x. If unable
to clear the error message, check the following:
• If installed, check network card for correct installation.
• If correctly installed, replace the network card.
• If a network card is not installed, replace the system board.
Bad checksum while programming network Network Card x port.
Flash parts failed while programming Network Card x port.
Engine is experiencing unreliable communications to the specified
device.
Errors 980 through 984 indicate the specified device has detected a
Paper Port communication failure.
Engine protocol violation detected by the specified device.
• Engine
• Duplex Option
• Tray x (where x=1,2,3,4, or 5)
Communications error detected by the specified device.
Output Bin (where x=1,2,3,or 6)
Note: This message is used for single bin output devices.
Bins x to y (where x to y= 1 to 5, 2 to 6, or 6 to 10)
4-67.
4-67.
"System board" on page
"System board" on page
4-67.
Diagnostic information
5060-2XX
4-67.
4-67.
"System
2-7