User guide

288
Chapter 7 Diagnosing Problems
34 RIBBON STALL
TIMEOUT
Yes In the CT emulation with
a coax interface, the
ribbon has not moved for
10 minutes after
ON LINE/CLEAR was
pressed to clear the
ribbon drive fault.
Reload the ribbon.
48V CIRCUIT*
See User Manual
No Either the power supply is
not generating a proper
48 Volts or the controller
board is not detecting a
48 Volt output from the
power supply board.
Contact your authorized service
representative.
1
48V PWR FAIL* No Internal power failure. Contact your authorized service
representative.
1
A TO D OVERUN* No Analog to Digital
Overrun. The analog-to-
digital converter
overflowed.
Contact your authorized service
representative.
1
ACCESS NULL PTR* No Access Null Pointer: The
processor tried to access
a pointer that contains
nothing (null).
Contact your authorized service
representative.
1
ACTIVATE LOST No The printer detects a
twinax protocol
communication error and
reports the error.
Contact your authorized service
representative.
1
B00 STATUS: SDRAM
DETECTION 166MHZ
No Status message: the
printer has begun its
boot-up routines and is
checking for the
presence of SDRAM.
No action required.
B01 STATUS: 8245
SDRAM TEST 32MB
No Status message: printer
boot-up routines are
testing SDRAM.
No action required.
B10 ERROR: NO
DRAM DETECTED*
No SDRAM DIMM may not
be properly installed.
Boot-up routines did not
detect the presence of
the SDRAM DIMM.
Cycle power to see if the message
clears, if not, contact your
authorized service representative.
1
B11 ERROR: RAM
TEST FAILED*
No SDRAM failed the boot
initialization test. SDRAM
DIMM may not be
properly installed.
Cycle power to see if the message
clears, if not, contact your
authorized service representative.
1
Table 17. LCD Message Troubleshooting Table
Displayed Message
Can User
Correct?
Explanation Solution