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2-5 4059 Service Manual
4059-XXX
939 Controller -
Engine
Communications
Error
The controller board and the engine board cannot
communicate with one another. The controller board,
engine board or interconnect board is defective. Check
each board for correct installation and secure ground. If
no problem is found, replace the FRUs in the following
order:
controller board
engine board
interconnect board
Note: The controller software also can cause a 939 error
code. Contact your next level for software support.
941 Controller
Code CRC
Replace the controller board.
941 Controller
Font CRC
Replace the controller board.
943 Controller
Font Version
Indicates that the controller code and FONT ROM are
incompatible.
944 Controller
Board Failure
Replace the controller board.
945 Controller
Board Failure -
ASIC Failure
Replace the controller board.
946 Controller
Board Failure -
SRAM Failure
Replace the controller board.
947 Engine
Board
Replace the engine board.
953 NVRAM
Failure
Indicates the NVRAM Chip on the engine board has
failed. Replace the engine board.
954 NVRAM
Failure
Indicates the NVRAM experienced a CRC failure.
Replace the engine board.
Error Code Action