Sony KF-42E200A Service Manual page 10

CLEARING THE SELF-DIAGNOSTIC SCREEN
The self-diagnostic results displayed on the screen are not cleared automatically, therefore you should always check the self-diagnostic screen during
repairs. When you have completed the repairs, clear the self-diagnostic screen to reset the results to "0".
Note: The self-diagnostic function will not be able to detect any subsequent faults after completion of the repairs unless the Self-Diagnostic
result display is cleared to reset the results to "0".
1. If the Self-Diagnostic screen is already displayed, proceed to step 3. If not, Power off (Set to Standby mode).
2. Press DISPLAY Channel 5
ENT
3. Press Channel 8
The status in the upper right corner changes to "WRITE". When the operation is complete, the status returns to "SERVICE" and the Self-Diagnostic
screen is reset.
4. To exit the Self-Diagnostic screen, turn the power off.
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