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Old 8th April 2009, 11:12 PM   #1
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Default newb, IC replacement

hy to every 1, first post in diy audio
just found my old venturer sts20-s 5.1 hometheater, i know it has dvd lens damage but im currently using it for av in audio=xbox 360 , thing is it has a blown ic ta8258 cant get replacement cause im in dominican republic, shipment is expensive, was wondering if i can get another just like it or better, increase wats or some.

only front n surrnd channels r runing can i swap srrnd ic to run center n sub= controled by blown ic
thanks in advance
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Old 9th April 2009, 03:38 PM   #2
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realized cant get the other 2 out so i hav to buy a new ic, where can i buy a ta8258h toshiba ic cause i can only find minimum cuantity sites, they may not even be lagit or sell china 1s i read ther not good
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Old 9th April 2009, 03:38 PM   #3
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can i test this suposed blown ic with a multimeter, n what about ba05st and b1566 can they be tested with multimeter?
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Old 10th April 2009, 02:01 AM   #4
xaudiox is offline xaudiox  Philippines
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Quote:
Originally posted by 1manwolfpack
realized cant get the other 2 out so i hav to buy a new ic, where can i buy a ta8258h toshiba ic cause i can only find minimum cuantity sites, they may not even be lagit or sell china 1s i read ther not good

TA8258H is available in Ebay: http://cgi.ebay.com/Toshiba-23009485...em270371959354

gudluck..

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Old 10th April 2009, 02:43 AM   #5
anatech is offline anatech  Canada
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Hi 1manwolfpack,
Quote:
can i test this suposed blown ic with a multimeter
No, not really. There are somethings you can check but you need to know what you are doing. Some multimeters will blow IC's if they run off a 22.5 V battery or higher. Same goes for low resistance scales.

So, a very qualified yes for very simple tests, but the best test is the circuit it's in.

Quote:
n what about ba05st and b1566 can they be tested with multimeter?
Same answer as above. Don't.

Quote:
was wondering if i can get another just like it or better, increase wats or some.
No. More things must be changed, like the power supply for one. You could bridge the speakers if they are not already.

Why not look up this IC and find out more about it?

-Chris
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"Just because you can, doesn't mean you should" my Wife
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Old 11th April 2009, 05:20 PM   #6
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thanks a lot, thats what i thought, n thankz for the ebay link,any 1 know where i can find a fixing electrncs for dummies type of e books, i mean i can save ur life but cant fix a dvd aint that something.
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Old 16th April 2009, 03:50 AM   #7
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ok this is going in as stereo but coming out as mono thru right n left.
so i think is bridged, just dont know where.
this venturer has 3 audio output set up , prologic, 3 stereo and off, in prolgc if both lef n rght inputs r connected it dsnt sound, if only 1 channel is connected it sounds only in the output corresponding to the input, no sound comes from 3 stereo , n in off setting- left n right sounds with mono out in both output.

all ready bought the IC, but need help with this cause, i might mess the ic because of d bridge if theres any.
by the way no soldering in the bottom of pcb, other than the normal
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Old 16th April 2009, 08:24 AM   #8
mobyd is offline mobyd  New Zealand
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Quote:
Originally posted by xaudiox



TA8258H is available in Ebay: http://cgi.ebay.com/Toshiba-23009485...em270371959354

gudluck..

USD39 to post a chip overseas ?
(and another $10 for a second chip)
Where's the mask and gun ?
M
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Old 16th April 2009, 10:58 AM   #9
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i know thankfully a friend is visiting me so i send it to his house, still 8 dollars for some that is not even 1/2 a pound is a robery, then again thats what what a lot of ebayers r all bout.
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Old 22nd April 2009, 03:06 AM   #10
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so i soldered the new ta8258, still no sound from center or sub, if i put input left n right , sound deteriorates, but if i put only left or right sounds normal. can any 1 plz help
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