Self-Diagnosis Function - Sony Trinitron KV-XF25M8J Mode D'emploi

Self-diagnosis
function
1
Check that the red flashes of the u indicator are about 3 seconds per
interval.
2
Count the number of times the u indicator flashes.
3
Press U (main power) to turn off your TV.
4
Inform your nearest Sony service center about the number of times the
u indicator flashed.
Be sure to note the model name and serial number located on the rear of
your TV.
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Additional Information
Your TV is equipped with a self-diagnosis function. If there is a
problem with your TV, the u (standby) indicator flashes red. The
number of times the u indicator flashes indicates the possible
causes.
Front of TV
u (standby) indicator