Xerox Phaser 4500 Service Manual page 190

General Troubleshooting
4-36
Troubleshooting Procedures
Step Actions and Questions
Power on the printer.
1
Is RAM ERROR displayed on the control
panel?
Is POWER ON SELF TEST ERROR
2
4: MEMORY displayed on the control
panel?
Is POWER ON SELF TEST ERROR
3
15: RAM DIMM displayed on the control
panel?
4 Print a Startup Page and review the
contents.
Does the Startup Page identify a failed
memory DIMM?
Are there two DIMMs installed in the
5
printer?
6 1. Power off the printer and remove one of
the DIMMs.
2. Power on the printer.
Is a memory fault message displayed?
1. Power off the printer and remove the first
7
DIMM.
2. Install the second DIMM and power on
the printer.
Is a memory fault message displayed?
8 1. Power off the printer and move the
suspected defective DIMM to the other
memory socket.
2. Power on the printer.
Does the DIMM fail in the new location?
9 Install all of the DIMMs and power on the
printer.
Is a memory fault message displayed?
Yes No
Go to Step 5 Go to Step 2
Go to Step 5 Go to Step 3
Go to Step 4 Problem
Solved
Replace the Go to Step 5
DIMM and go
to step 9
Go to Step 6 Go to Step 8
Go to Step 8 Go to Step 7
Go to Step 8 Go to Step 9
Replace the Replace the
DIMM and go I/P board
to step 9 (page 8-75)
Replace the Problem
I/P board Solved
(page 8-75)
Phaser 4500/4510 Service Manual