Question about Sony FD Trinitron WEGA KV-32HS500 32" TV

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TV doesn't turn on, standby light flashes 4 times

When we try to turn the TV on, we get no picture or sound. The standby light will flash 4 times. I know this is an error code but I don't know what it means. I tried unplugging the TV and replugging it in, and It didn't work.

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  • npeterson08 Aug 10, 2008

    update: standby light is now flashing 7 times

  • t3Kpwnzmi Nov 30, 2008

    LOL ... I'm having the same problem. It kind of goes through the motions, as if trying to turn on, because you can hear the sound it makes, like that degauss thing that old monitors used to do (because this TV happens to sound like a computer monitor when you turn on) ... but then the stand-by light starts to flash and nothing happens. I haven't really counted how many times it flashes. I thought it flashed indefinitely. Sometimes I push the button out of frustration to get a reaction out of it. Other times I lose patience and just unplug it. Now idea how many times it flashes, although I'll count again tomorrow. Another thing, sometimes the Memory Stick light will turn on too, once, with the stand-by light.

    Speaking of unplugging, that seems to be a temporary solution. I'll leave it unplugged for, basically, ALL day and/or night. If I'm lucky, when I plug it back in it'll turn on automatically and start working as if it's fine. Until I turn it off, then it's no good, and it's back to leaving it unplugged for a few hours.

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4 flashes mean the IC5004 (STV9379)on D-Board went bad and the 15V supply is no longer steady. The IC is rather easy to find and inexpensive (around $2.50). Your main problem will be desoldering the old one and soldering the new one. CAUTION! - Heat sink on IC5004 is -15V. Care must be taken not to allow heat sink to touch any other components

Good Luck.

Posted on Jan 04, 2009

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Posted on Jan 02, 2017

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