Slide 31
Burn-in Test
After repairing each unit, a burn-in test is necessary.
In a burn-in test, the lamp is turned on for a set period of
time (such as 50 minutes), then off for another set period of
time (such as 10 minutes).
This can be accessed in the service mode.
For the procedure, see ‘System Maintenance – Functional
Tests – Burn-in Test’ in the service manual.
The lamp on and off durations can be set before starting the
test.
This procedure takes a number of hours to complete, so
should not be done at the customer site.
After a normal repair: 2 hours
If the cause of the malfunction cannot be detected: 4 hours
After solving a problem that causes the power to
automatically turn off: 6 hours
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