Question about Sony KV-36XBR450 36" TV
A technitian just replace the power supply and a voltage regulator, he left and then the tv will power off after 11 to 15 minutes of runing. I know it is not the timer, because the timer mode is off not activated. another thig is the colors are not the same on the left there is alot of green, middle ok, left side a lot of red, the guy said the tv has a built in system that would clear the colors automatically in 3 weeks . is that true ? thank you.
He probably means the Deguassing coil, which is around the set. This is needed when the set is first turned on. Because of the earth polarized field, when you turn your set to the east, west or just a different degree, it affects the Deguassing area. This sometimes looks like a rainbow affect in your set, and sony's are bad about them. But all in all Sonys are good sets. If it does not go away it could be a problem with your picture tube, or the is a Magnet somewhere close by, like speaker or some type of big magnet. If so then remove Magnet and turn off and on until disappear. Is the pic good when running? Does the set comes right back up if you press power and wait another 11 to 15.?
Posted on Sep 09, 2007
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This is an indication that you have a problem on the power supply section or on the load because of the following reasons :
1. Over Voltage - the regulator might be cycling on over voltage due to lack of load.
2. Over Current Protection - excessive load or faulty power supply cycling will
trigger the over current protection circuit.
3. High voltage - there might be an excessive high voltage or some other system detecting an out of regulation condition. However, in this case, there should be some indication that the deflection and HV is attempting to come up - momentary whine, static on the screen, etc.
4. Leaky Capacitor - a dried up main filter capacitor or other filter capacitor in the low voltage power supply that is producing an out-of-regulation condition. A bad filter capacitor on the output of a series regulator may result in excessive or drop of voltage.
5. A problem with the microcontroller, relay or its driver, or standby power supply.
This is not DIY and quite technical so I
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