
5 Perform the ROM test
a Press the ROM softkey.
b Does the display message say "Test Passed"?
If yes, go to next test. If not, (the display message says Test Failed)
replace the system board.
6
Perform the RAM test.
a Press the RAM softkey.
b Does the display message say "Test Passed"?
If yes, self-tests are complete. If not, (the display message says
"Test Failed") replace the system board.
Service
Troubleshooting the Oscilloscope
4–43
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