Sony Kv-20EXR10 Shut Down


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Sony Kv-20EXR10 Shut Down

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midgar
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Dec 8, 2004, 9:55 PM

Post #1 of 8 (1703 views)
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Sony Kv-20EXR10 Shut Down	Can't Post

Hi, i Have a problem with my Tv Kv-20exr10, it's shuts down after 5 to 20 min, when is hot less time. Two presses on the set's power switch on Tv turns set back on ...

Any help... Unsure

(This post was edited by midgar on Dec 8, 2004, 9:55 PM)

mel
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Dec 9, 2004, 12:22 AM

Post #2 of 8 (1694 views)
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Re: [midgar] Sony Kv-20EXR10 Shut Down [In reply to]	Can't Post

Does it shut down completely or do you just lose video? Does the standby light flash when it is shut down and if so, how many times. You might want to check out www.FreeFlatScreens.com/?r=10948674 for an opportunity to earn a free replacement for this set with a little effort on your part

midgar
New User

Dec 9, 2004, 1:28 AM

Post #3 of 8 (1690 views)
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Re: [mel] Sony Kv-20EXR10 Shut Down [In reply to]	Can't Post

Thanks For answer

shut down completely, and after if i unplug and plug to outlet, Turn on or i push two time power Button... 5v Stanby Ok, IC 603 9.3v ok tp91 on board G "135v" 148v this B+,Tp 94 "A -22" 22v on A Q607 and Q608 "protect" Ok

(This post was edited by midgar on Dec 9, 2004, 1:30 AM)

midgar
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Dec 11, 2004, 1:47 PM

Post #4 of 8 (1674 views)
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Re: [midgar] Sony Kv-20EXR10 Shut Down [In reply to]	Can't Post

No light flash Unsure

any idea?

midgar
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Dec 11, 2004, 10:47 PM

Post #5 of 8 (1669 views)
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Re: [midgar] Sony Kv-20EXR10 Shut Down [In reply to]	Can't Post

Nothing Help Unsure

Change R674, now B+ =135,7v but Tp93 (8v) = 11.5 V Unimpressed

mel
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Dec 12, 2004, 2:54 AM

Post #6 of 8 (1666 views)
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Re: [midgar] Sony Kv-20EXR10 Shut Down [In reply to]	Can't Post

I haven't been able to get on this site all afternoon. I'll take a look tomorrow PM and get back if I can come up with something.

mel
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Dec 12, 2004, 11:54 PM

Post #7 of 8 (1653 views)
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Re: [midgar] Sony Kv-20EXR10 Shut Down [In reply to]	Can't Post

Check Q604 on the lower right corner of the power convertor board.

midgar
New User

Dec 13, 2004, 12:27 PM

Post #8 of 8 (1653 views)
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Re: [mel] Sony Kv-20EXR10 Shut Down [In reply to]	Can't Post

Q604 it's ok, i tested diode (B-E) and is ok, or how i test? after of replace R674 now the Tv never shutdown it self, but the voltage in tp93(8)= 12V, tp94(A-22) = 20,8V and pin 9 of Ic651 (-7.5) now=-53v, four years ago I replaced this IC (STR-S6301) -> (STR-S6301A). Any problem or is normal ?
Thanks

(This post was edited by midgar on Dec 13, 2004, 12:41 PM)

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