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Sont tv I have a sony bravia 40 inch lcd KLV-40U100M and it would always turn off by itself then turn back on. That went on for a long time but now the tv doesn't even turn on, I know this is a very common problem with this model tv. I was just wondering what my best approachto fix it would be

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According to the owners manual (toubleshooting section page 42)

  1. The unit turns off automactically - Check if sleep timer is activated (page 31,40).
  2. No picture - Check Power Saving settings (page 41).
If there is no power at all, please do not try to fix yourself. Please contact a qualified service technician to do it or call Sony
in the USA 1-800-222-7669 - The Direct Response Center.
In Canada call 1-899-7669 - Customer Relations Center

Here is the manual just in case you don't have it.

You will need PDF software to read it.
I HOPE THIS HELPS YOU!
GOOD LUCK!

Posted on Jul 05, 2008

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Your problem is in the power supply.Bad regulation of the incoming voltage could cause this issue although,to be frank so could 10 others but we have start somewhere. There is a capacitor across the incoming line neutral. It can be a dry up or leaky cause the problem, change it out with one of identical rating i would probably also check the flyback circuit and flyback transformer although now you are getting into a dangerous area especially if u have electronic experience find a technician to do the works in order to avoid high voltage shock or bring your t.v in repair shop. find a good one you were probably have to pay $52 up tell the guider that the problem is power supply and flyback.

Posted on Jul 05, 2008

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  • Projection T... Master
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Hi there,

i want to to know if there is any LED indicators flashes like; timer/standby light is flashes constatntly..?

Let me know...

Thank you

micromaster

Posted on Jul 05, 2008

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