HP 54600B User, Installation And Service Manual page 136

Perform the test.
4 RAM
Press the RAM softkey.
a
Does the display message say Test Passed?
b
If yes, press any key to continue. If not, (the display message says
Test Failed) replace the system board.
Perform the display test.
5
Press
a
Print/Utility
Press the Self Tst softkey, then press the Display softkey.
b
Do the half bright and full bright squares appear?
c
If yes, continue with the steps below. If not, replace the display.
Press any key to continue.
d
Do squares appear in the four corners?
e
If yes, the display is good. If not, replace the display.
Press any key to end the test.
f
If you still have the failing symptom, replace the system board.
g
Troubleshooting the Oscilloscope
.
Service
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