Question about Sony KV-32S26 32" TV

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Volumne very low & high pitched back round noise (sony trinitron)

My sony trinitron has volumn problems & strange sound, like a high pitched noise

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Many Sony sets use a stereo processing integrated circuit (IC) that causes this problem when it goes bad. The part is an SBX-1637-11 and is available from several parts suppliers. One I use a lot is MCM, and their page for this part is here.

Changing the IC is not difficult if you have some experience working with soldering electronic parts. If you're not comfortable with the idea of doing this yourself, a TV shop could do the repair and the cost would be much less than a new set. It would definitely be worth repairing if the picture still looks good to you.

Posted on May 27, 2009

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1 Answer

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I have a Sony DAV S500 AV system and with certain DVD and with the volumn just over 20 (not really that loud), the system shuts down and PROTECT shows in the message window. I read somewhere on the web...


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http://audio.manualsonline.com/search.html?q=Sony+DAV-S500

If the problem returns with connection of the sub it may be defective or on its way out. Internal damage to the voice coil from being overdriven could have melted or worn through the insulation and it would cause intermittent undesired electrical contact or load variation under certain conditions, like high volumes.

If your speaker level settings are unusually boosted for the sub you may be overdriving it.

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Poor sound quality


This is just a guess but the dolby sound on my system is bad however when I switch to regular "stereo" sound it improves. See if your audio set up has a choice of sound and try them all.

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