Lexmark T632 Service Manual - Page 38

4060-xxx Service error code (continued) Error code Action 954 NVRAM CRC Failure Indicates the NVRAM experienced a CRC failure. Replace the interconnect board. 955 Code CRC Replace the system board. Where = CRC Failure or ECC Failure on the system board. 956, 957, 959 System Board Error codes 956 thru 959 are system board failures. Perform a power on reset (POR). If this does not fix the problem, replace the system board. • 956 = Processor failure • 957 = ASIC failure • 959 = SRAM failure 958 NAND Failure Before proceeding when a 958 NAND failure displays, perform a power on reset (POR) to see if the ECC error correction code can reflash NAND. If this does not fix the problem, replace the system board. 960 RAM Memory Error Indicates a DRAM Memory Error on the system board. Replace the system board. 961 RAM in Slot 2 is Bad If another SDRAM memory DIMM is installed in slot 1, turn the power off, switch the DIMM in slot 1 to slot 2. If the memory in slot 2 now works correctly, replace the failing DIMM that was in slot 2. If this does not fix the problem, replace the system board. If another DIMM is not available, replace the memory option. If this does not fix the problem, replace the system board. 962 RAM in Slot 1 is Bad If another SDRAM memory DIMM is installed in slot 2, turn the power off, switch the DIMM in slot 2 to slot 1. If the memory in slot 1 now works correctly, replace the failing DIMM that was in slot 1. If this does not fix the problem, replace the system board. If another DIMM is not available, replace the memory option. If this does not fix the problem, replace the system board. 964 Emulation Error Indicates a failure within the Download Emulation which is programmed into the code overlay card. The specific error is as follows: 964 - Download Emulation CRC Failure. Checksum Failure. Go to "Disabling Download Emulations" on page 3-3. 975 - 979 Network Card x The following errors indicate a failure with the network card in the specified slot. (x=any card installed in slots 1 or 2.) • 975 - Unrecognizable Network Card x. Replace network card x. • 976 - Unrecoverable software error in network card x. • 978 - Bad checksum while programming network card x. Replace network card x. • 979 - Flash parts failed while programming network card x. If the printer is a network model, replace the system board. 980 Comm The engine is experiencing unreliable communications to the specified device. 981 The engine protocol violation detected by the specified device. 982 Comm Communications error detected by the specified device. 983 Invalid command received by the specified device. 984 Invalid command parameter received by the specified device. Note: Service errors 980 thru 984 can be one of the following: system board, duplex, tray x (1, 2, 3, 4, or 5), envelope feeder or output bin. 2-4 Service Manual