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SONY 1993 53" PROJECTION TV HAS NO AUDIO OR VIDEO OR BLINKING LIGHT. WHAT DO I CHECK AND IS THERE ANY SONY SUPPORT? KPR-53EXR15

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Hello,
It sounds as though you have a damaged the main board ( power supply board). First I would suggest you check the fuses, in both the main board and also the convergence board ( there are two main boards in your set ). Before you start, always use caution by unplugging the set from the wall. To check the fuses, remove the bottom panel cover in the back of the set by removing the screws. Use a flashlight and observe all the fuses you can find and see if any are opened or burned out. ( if the fuse is burned out, it will be black, you may not be able to see if the fuse is just opened without using a continuity checker ( volt ohm meter ) ). Any fuses you find open or burned out, replace with a like fuse ( voltage and amperage ). The set should work fine if a fuse is the problem. If the set doesn't have a bad fuse or won't work after replacing a bad fuse, then you will probably have to seek professional help. Check www.sony.com for service in your area. Good luck. I hope this has helped.
Ed
NC Electronics
Mills, Wyoming

Posted on Feb 18, 2008

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Posted on Jan 02, 2017

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