Lexmark T650n Service Manual page 144

4062
Error
code or
message
955.xx
956.xx
956.01
957.xx
958.xx
959.xx
960.xx
961.xx
962.xx
963.xx
964.xx
2-112
Service Manual
Error contents
NVRAM failure
System card
processor failure
System card
processor over
temperature
System card ASIC
failure
NAND failure
Print cartridge
authentication failure
Memory failure
Memory failure
Memory failure
Memory failure
Emulation failure
Description/Action
The Code ROM or NAND flash
failed the Cyclic Redundancy
Check (CRC) check or the
NAND experienced an
uncorrectible multi-bit failure.
The processor has failed on
the system card assembly.
The system card processor is
over temperature or is
damaged.
The ASIC has failed on the
system card assembly.
Printer has performed more
than 100 "shift and reflash"
operations as a result of ECC
bit corrections
The system card can not
properly authenticate the print
cartridge or the authentication
process has failed.
RAM Memory Error: RAM
soldered on the card is bad
RAM Memory Error: Slot 1
RAM is bad
RAM Memory Error: Slot 2
RAM is bad
RAM Memory Error: Slot 3
RAM is bad
The download Emulation
Cyclic Redundancy Check
(CRC) detected a failure.
Possible repair actions
Replace the system card
assembly.
Go to "System card
assembly removal (T650,
T652, T654)" on page 4-71.
Replace the system card
assembly.
Go to "System card
assembly removal (T650,
T652, T654)" on page 4-71.
Replace the system card
assembly.
Go to "System card
assembly removal (T650,
T652, T654)" on page 4-71.
Replace the system card
assembly.
Go to "System card
assembly removal (T650,
T652, T654)" on page 4-71.
Replace the system card
assembly.
Go to "System card
assembly removal (T650,
T652, T654)" on page 4-71.
Replace the system card
assembly.
"System card
Go to
assembly removal (T650,
T652, T654)" on page 4-71.
Replace the appropriate
memory module.
Replace the appropriate
memory module.
Replace the appropriate
memory module.
Replace the appropriate
memory module.
1.
1. Disable the Download
Emulation. Program the
download emulation into the
firmware card again.
2. Replace the system card
assembly if problem remains.
Go to "System card
assembly removal (T650,
T652, T654)" on page 4-71.