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When I turn the tv on it has a black screen, then after it warms up it is fine. When I change the channel after it warms up and is acting fine the problem starts all over again and I have to wait again to let it warm up on a different channel. Anyone know what is wrong?
I would suggest re-soldering your tuner connections and see if that helps. solder cracks tend to "fix" themselves after they warm up. Try the solder first but also look for evidence of a capacitor that may be swelled or leaking near the tuner.That is a possibility also.Hope this helps, let me know if you ned any further assistance.
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This tv is not repairable only can be replaced the Plasma screen itself.Not woth it,replacing the plasma screen,will cost the same as a new tv.This problems,u discribing is the Plasma screen itself sure comming to used and ages.Not any electronic boards componnent.Because the floorscents Plasma gas u seeing on the screen itself forming and lighting up the Plasma screen itself.
Sony is known for having problems with the picture tube. Sometimes it will blink on and off. also bad connections on the main board. A CRT restorer will sometimes help with picture tube problems but this must be done by a tech that has one.
Check the voltage to the relay, usually 12v dc.
Also check the relay or replace as it may be stuck after the tv warms up. The micro chip for
functions could be locking up. Try spraying a
little freeze spray directly on chip after tv
is locked up see if this unlocks, if it does
you have a bad micro chip.
IF your TV is not one of the real old ones, you have a problem with the automatic tuning system.
Some component in this circuit most likely a capacitor or coil is changing its electrical properties due to temperature which in turn causes the set to be off frequency until it warms up.
A capacitor (condenser) can do this quite often.
Stargazer
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