Instruction manual

The Procedures
55
ERROR: PROGRAM
NOT VALID Message
1. The printer does not see a program in flash memory.
There is no program in printer memory. Download the emulation
(page 130).
ERROR: SECURITY PAL
NOT DETECTED Message
1. The security PAL is not present or has failed.
Check the security PAL at location U54 on the CMX controller board.
If the PAL is absent, install the correct PAL. If a security PAL is
present, replace it.
2. Power on the printer.
If the message appears, replace the replace the CMX controller
board. Record the message and return it with the defective board.
ERROR: SHORT AT
ADDRESS XXXX Message
1. Hardware failure in DRAM or CMX controller circuitry.
Download the program again (page 130). If the message occurs
again, replace the DRAM. If message occurs with new memory,
replace the CMX controller board. Record the message and return it
with defective CMX board.
ERROR: WRITING
TO FLASH Message
1. Hardware or software fault in flash memory.
Replace flash memory. If message occurs with new memory, replace
the CMX controller board. Record the message and return it with
defective CMX board.
ERROR: WRONG
CHECKSUM Message
1. The printer received the complete program but the checksum did not
match. The data may have been corrupted during download.
Power off the printer. Download the program again from the
beginning (page 130). If the messages appears, replace the DRAM.
2. Download the program using a new software diskette.
If the messages appears, replace the flash memory.
3. Download the program.