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2-8 Service Manual
4085-001
939 RIP to Engine communications
failure
Unplug and replug the AC
power cord to see if the
problem goes away.
Check the RIP card cable
connections. If the
connections are good,
replace the engine board.
See “Engine Board /Cover
Removal” on page 4-14 .
If the problem remains,
replace the RIP card. See
the “RIP-EMC Shield
Assembly/RIP Card
Removal” on page 4-24 .
Note: The RIP software
can cause a 939 error.
953 NVRAM Failure - NVRAM Chip
failure
Replace the RIP card. See
the “RIP-EMC Shield
Assembly/RIP Card
Removal” on page 4-24 .
954 NVRAM Failure - NVRAM CRC
failure
Replace the RIP card. See
the “RIP-EMC Shield
Assembly/RIP Card
Removal” on page 4-24 .
955 Code ROM error Replace the RIP card. See
the “RIP-EMC Shield
Assembly/RIP Card
Removal” on page 4-24 .
956 RIP Card - Processor failure Replace the RIP card. See
“RIP-EMC Shield
Assembly/RIP Card
Removal” on page 4-24 .
957 RIP ASIC failure Replace the RIP card. See
“RIP-EMC Shield
Assembly/RIP Card
Removal” on page 4-24 .
Error Symptom Action