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Venturer sts20s ic problems?

Recently i found my old venturer sts20s 5.1, had it fix bout 5 years ago n the guy was only able to make left n right outputs because he was missing a part. thing is i opened it n saw a missing ta8258h ic, so i ordered 1 an soldered it still no sound from center or sub. i dont know what he did when he fixed it, nor is he available.
if i put input left n right , sound deteriorates, but ifi put only left or right sounds normal.
how can i fix this, can i test the ta8258h ic with a multimeter?

what would be symptoms of a bad ba05st and b1566 ic

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Hello:
you can not check a ic (intergal electronic circuit) with a multi meter the chip need power to 2 pins and so the chip wil works only check with a scoop for richt outputs and signals

Posted on Oct 18, 2009

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Posted on Jan 02, 2017

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Hi, i have a sony 43ht20 bought new the year they came out... 2002 i believe. it ran great for a few years then bam, wouldnt turn on. ordered the manual and found the problem to be a 5v undervoltage on the...


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Sony KP-53XBR45 convergence


Hey, found the problem. Your Convergence IC chip went bad. Buy one at Bluestar International Components (bluestar-online.com) - order part number STK392-010 for 6.99. I've read that there are two in the system and replacing them both at same time is a good idea...so, order 2. Now, if you are handy, it will require you to open the back of the TV and solder out the old chip and replace with new. If not, then you might as well call a TV repair person and have them fix. However, every place I've called works on a minimum fee for "large screen TVs" - the cheapest I could find in Atlanta was $399 minimum service fee. So, I'm going to risk the home sodering job .... it's a 10 year old TV and as good as it's been to me, if I screw it up, I feel I've gotten my money out of it. Good luck with your repair. My parts are on order.

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No sound on analog inputs, digital sound is ok


1) IT02 Shorted, pins 92 and 93
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7) Audio Quits when board is tapped.
Cause: Soldered all IC's on bottom of board. Also soldered IT04, I516, I517, I510, I501.
8) Also, please resolder IT05 and IT06
9) Check for cracked patterns under IT05

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