[TechAssist] Re: Sylvania TV
- From: "markbrock" <markbrock@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 30 Sep 2003 20:01:21 -0500
nope, no click no hv, nothing, just continues to squeal, I lifted pin #2
of the vert IC ( b+ ) and still the same, checked the opto coupler and all
the caps around the vert ic which are all live with plug in, still
something is dragging down the smps. I was pretty sure it was the vert IC
and have one ordered but they come direct from the factory and will take a
few days to get here, also a 20.00 investment. after lifting b+ at vert
ic, I'm not sure that is the culprit, none of its pins appear shorted to
each other, guess its time to get a print.
brock
----- Original Message -----
From: <HSWAD@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, September 30, 2003 4:56 PM
Subject: [TechAssist] Re: Sylvania TV
> What happens after plug in? Does it run?Hollis Bates,Field
Engineer-retired,
> Lewiston, Maine, HSWAD@xxxxxxx
> In a message dated 9/30/03 2:46:30 PM Eastern
> Daylight Time, myerstv@xxxxxxxx writes:
> > Subj: [TechAssist] Re: Sylvania TV
> > Date: 9/30/03 2:46:30 PM Eastern Daylight Time
> > From: <A HREF="mailto:myerstv@xxxxxxxx";>myerstv@xxxxxxxx</A>
> > Reply-to: <A
HREF="mailto:techassist@xxxxxxxxxxxxx";>techassist@xxxxxxxxxxxxx</A>
> > To: <A
HREF="mailto:techassist@xxxxxxxxxxxxx";>techassist@xxxxxxxxxxxxx</A>
> > Sent from the Internet
> >
> >
> >
> > HI Mark,
> >
> > If it's a switched-mode supply, just about anything that loads it down
will
> > cause it to squeal. I've had RCA's w/ shorted horizontal outputs that
> > squealed like crazy when plugged in.
> >
> > My point is, look for something that is shorted, on either the standby,
or
> > run supply.
> >
> > John Myers
> > Myers TV Service Co. Since 1984
> > Alliance, OH
> > Voice: 330-821-6545
> > myerstv@xxxxxxxx
> > http://members.ebay.com/aboutme/tvguy07/
> > http://members.ebay.com/aboutme/threads_r_us/
> >
> > ----- Original Message -----
> > From: "markbrock" <markbrock@xxxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: September 30, 2003 9:11 AM
> > Subject: [TechAssist] Sylvania TV
> >
> >
> > >SRT2232S
> > >stand by squeals at plug in. checked everything, still does it, can
vert
> > >IC cause this ?
> > >any ideas .
> > >thanks
> > >brock
> > >
> > >
> >
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