Re: TV has 130V DC on A/V input!
From: Tom MacIntyre (tom__macintyre_at_hotmail.com)
Date: 07/16/04
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Date: Fri, 16 Jul 2004 21:01:41 GMT
On Fri, 16 Jul 2004 19:37:29 GMT, "alpha_uma" <none_such@home.com>
wrote:
>"Orange" <orangeAMI@mail.ru> wrote in message
>news:i4agf0pq27un50duorvhivnv1k35cvvf4b@4ax.com...
>> I have some old TV, and it works fine. Only recently I discovered that
>> voltage between shield of composite input and gnd of device being
>> connected is about 130 Volts DC!!!!! Its about 80V when voltmeter is
>> set to AC.
>>
>> I did notice every time some sparks when connecting device (Amiga1200)
>> to TV, and then I was slightly "shaken" by current (don't know the
>> right word), but since the picture quality HAS BEEN OK, it didn't
>> matter. The picture is still OK, but I'd rather not use TV any more.
>>
>> Could this possibly be normal for TV, because picture is perfectly OK
>> (are other TVs like that) ? Should I take it to repair?
>> Amiga1200 behaved strangely, would freeze if not "left alone" for 30
>> min after powerup; could this be the reason?
>
>No, how can it be "normal" to get an electrical shock? Is the TV power cord
>using a two-prong plug or three-prong plug?
> Al-U
>
TV's typically do not use 3 prong.
Sounds like a blocking capacitor may be shorted, or at least leaking;
that's the sort of thing that happens when the blocking capacitor in a
TV's tuner is bypassed.
Tom
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