Printronix P7000 User Manual page 260

Chapter 7
Diagnosing Problems
Table 13. LCD Message Troubleshooting Table
Displayed Message
34 RIBBON STALL
TIMEOUT
48V CIRCUIT*
See User Manual
48V PWR FAIL*
A TO D OVERUN*
ACCESS NULL PTR*
ACTIVATE LOST
B00 STATUS: SDRAM
DETECTION 166MHZ
B01 STATUS: 8245
SDRAM TEST 32MB
B10 ERROR: NO
DRAM DETECTED*
B11 ERROR: RAM
TEST FAILED*
260
Can User
Explanation
Correct?
Yes In the CT emulation with
a coax interface, the
ribbon has not moved for
10 minutes after CLEAR
was pressed to clear the
ribbon drive fault.
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.
No Internal power failure.
No Analog to Digital
Overrun. The analog-to-
digital converter
overflowed.
No Access Null Pointer: The
processor tried to access
a pointer that contains
nothing (null).
No The printer detects a
twinax protocol
communication error and
reports the error.
No Status message: the
printer has begun its
boot-up routines and is
checking for the
presence of SDRAM.
No Status message: printer
boot-up routines are
testing SDRAM.
No SDRAM DIMM may not
be properly installed.
Boot-up routines did not
detect the presence of
the SDRAM DIMM.
No SDRAM failed the boot
initialization test. SDRAM
DIMM may not be
properly installed.
Solution
Reload the ribbon.
Contact your authorized service
1
representative.
Contact your authorized service
1
representative.
Contact your authorized service
1
representative.
Contact your authorized service
1
representative.
Contact your authorized service
1
representative.
No action required.
No action required.
Cycle power to see if the message
clears, if not, contact your
authorized service representative.
Cycle power to see if the message
clears, if not, contact your
authorized service representative.
1
1