It sounds that any electrolytic capacitor at its main power regulator section have bursted out, due to a over-voltage. Contact any service technician. To get more details, http://electronicshelponline.blogspot.com/
Thanks for the info and speedy response, Sasi. Any idea what might be causing the "over-voltage?" I don't want to replace caps, only to have other components fail. The TV is 10+ years old. So, should all the larger caps be replaced? Other than the pop noise, the TV is working OK. If possible, I want to repair it myself. I've worked on some TVs and have good soldering skills, but not much troubleshooting experience.
Hi Maer, If TV works normal, and you hear a pop sound from its speaker, when you switch it ON, it seems not to be a fault. Sometimes the mute section of the audio output or audio processor section have failed. It will be best not to go further, because, the spare parts to these sets are very difficult to get now. You can check all the solder terminals at the audio processor section. That is all to do.
Hi Sasi, Thanks for the advice. Here's exactly what's happening when the TV is turned on. The power light flashes red four times. Then, the TV makes the popping sound. Then, the power light flashes red five times, pauses, and flashes red five times again and the picture appears. If the sound is turned all the way down when the TV is turned off, no pop occurs when the TV is turned back on. I think that means that you're correct about something in the audio section having failed. Any other thoughts?
Hi Maer
Have you visited the site I've given? If not, just to to it. It has details about the blinking codes to Sony Trinitron TVs. surf it with patience. If you want any more advice, be free to com over by comments. I'm here to assist you, as good as I can. OK?
Thanks for taking the time to share your thoughts. As I said, if the volume is turned down when the TV is turned off, no pop occurs when the TV is turned back on. Does that mean you're right about the TV having an audio problem? I had already visited the site. It's great! But, I didn't find any blinking codes for my Sony TV or related TVs. (I only included the Standby LED blinking information in case that was important.) Thanks again for all your help and patience.
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TV works OK (other than the pop noise).
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