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Chapter 4 Troubleshooting Display Messages
CTL VOLT FAIL* Controller Voltage Failure. 15 V
failure on the CMX controller
board.
1. Cycle Power. Run the print job again.
If the message appears, download
the emulation software again (page
129).
2. Cycle power. Run the print job again.
If the message appears, replace the
flash memory.
3. Power on the printer. Run the print
job again. If the message appears,
replace the CMX controller board.
Record the message and return it
with defective CMX board.
4. Power on the printer. Run the print
job again. If the message appears,
replace the power supply board.
5. Power on the printer. If the message
appears, replace the shuttle frame
assembly.
DIAGNOSTIC
PASSED
Status message: the printer
passed its memory and
hardware initialization tests.
No action required.
DRVR CIR BAD* Driver Circuit Bad: the hammer
coil count test failed.
1. Cycle power. If the message
appears, press CLEAR.
2. Power off the printer. Remove the
shuttle cover. At the shuttle frame
assembly, disconnect the hammer
bank logic and power cables. Power
on the printer. If “HB NOT
INSTALLD” appears on the LCD,
replace the shuttle frame assembly. If
“HB NOT INSTALLD” does not
appear on the LCD, replace the CMX
controller board.
ERROR: DC PROGRAM
NOT VALID
The printer cannot find the data
controller program or the
validation checksum is corrupt.
Download the program again. If the
message appears, replace all flash
memory SIMMs.
ERROR: DRAM AT
ADDRESS XXXXXXXX
The printer found a defective
memory location.
1. Replace the DRAM.
2. Power on the printer. If the message
appears, replace the CMX controller
board. Record the message and
return it with defective CMX board.
Table 2. Message List
Message Explanation Solution
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