Question about Sony KP-53XBR45 53" Rear Projection Television

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TV picture On this sony unit, after about 5 minutes the Timer/Standby light begins to blink as does the picture. After another minute of blinking I lose the picture completely. Is this a heat problem, fuse or what? I don't have the manual and have looked everywhere for a possible solution. The unit is about 8 years old and I'm wondering if it's time for a new TV?

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  • 479 Answers

Its not the time for new tv yet.as the problem you r facing is not a major problem.

Check for multiple poor solder connection on the sweep/power supply board.

or.
just need to balance the three colors red,green and blue that may help. remove the front covers and look for black module that have screw and focus controls just move little bit left or rightbe carefull because you can loos the picture

Posted on Sep 24, 2008

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Many of the later model Sony TV’s have a built in self-diagnosis function. If the timer/standby indicator is blinking, this could be an indication of a problem with the unit. The diagnostic blinking will occur automatically with no action required by you to engage it.
The timing of the blinking you see would be as follows: two to nine blinks, (depending on the fault), about a third of a second apart, then a pause for 3 seconds, then the two to nine blinks about a third of a second apart again.
Here is a list of the problems that might have occurred indicated by the number of blinks. The words in parentheses are those, which you will see for each of these faults on a diagnosis screen described later in this article.
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  • Seven blinks - High voltage shutdown. The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits.
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You can get the service manual and free support at the following site to help yu with the repair of your sony the manual is 10.99 support is free here is the link. They will email the manual to you.
http://servicemanuals.vstore.ca/

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TURN TIMER OFF. GO TO SONY.COM, TROUBLESHOOTING, OR The STANDBY light is flashing on the television and there is no picture or sound. Solution
sp.gif sp.gif The STANDBY light will flash if an issue is detected within the television. This can sometimes be resolved by simply following the steps below to reset the television.
  1. Turn off the television. IMPORTANT: For a projection television that uses an internal lamp, wait 5 minutes after turning off the television to allow the lamp to cool before continuing with the following steps.
  2. Unplug the television power cord from the electrical outlet.
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  4. Plug the power cord back into the electrical outlet. NOTE: If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.
  5. Turn on the television.
If the issue is still unresolved after following all of the troubleshooting steps, service may be required. Please note the number of times the STANDBY light flashes and relay that information to the service center.

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