[TechAssist] Re: magnovox ts2575 25f800 chassis
- From: "al m" <ampm@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 29 Nov 2001 07:14:13 -0600
there is a vertical pulse on vertical output, has anyone worked on one of
these sets who could tell me if what the b+ is supposed to be the manual
calls for 140v, i have 129v might be mistake in manual.if not thats my
problem i guess.
al marquardt
ampm@xxxxxxx
----- Original Message -----
From: "Lewis Wetzel" <crsjax@xxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, November 29, 2001 6:39 AM
Subject: [TechAssist] Re: magnovox ts2575 25f800 chassis
>
> If the vertical is missing it will shut down. If there
> is a bad vertical signal out of the A/V processor
> change that. I have had several bad in this way.
> Lewis
> --- al m <ampm@xxxxxxx> wrote:
> >
> > won't start . degause relay clicks one then a couple
> > seconds later 5 or six
> > more times. have momentary horizontal and vertical,
> > but the vertical pulse
> > is missing on the micro. it comes off pin 6 of
> > vertical ic, goes thru what
> > parst list says is a 33v zener then to a transistor.
> > the puls is only 10
> > volts so i don't think it's going to get to the
> > micro. don't know if that's
> > the problem or if the regulator is the problem.the
> > pulse would probably be
> > bigger if the right voltage was there.
> > al marquardt
> > ampm@xxxxxxx
> > ----- Original Message -----
> > From: "Phillip R. Hull" <phil245@xxxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Wednesday, November 28, 2001 1:15 PM
> > Subject: [TechAssist] Re: magnovox ts2575 25f800
> > chassis
> >
> >
> > >
> > > You didn't say whats wrong with unit.
> > > Phillip R Hull
> > > phil245@xxxxxxxxxxxxx
> > > ----- Original Message -----
> > > From: "al m" <ampm@xxxxxxx>
> > > To: <techassist@xxxxxxxxxxxxx>
> > > Sent: Wednesday, November 28, 2001 1:23 PM
> > > Subject: [TechAssist] magnovox ts2575 25f800
> > chassis
> > >
> > >
> > > >
> > > > i'm stuck on this one. manual calls for 140v on
> > main output on
> > > regulator.i
> > > > got 129v checked all outputs for caps and diodes
> > regulator has correct
> > > > voltage on every pin. manual says turn down ac
> > voltage and check
> > > > outputs,same thing did anyone see this before
> > the troubleshooting guide
> > is
> > > > vague on what to do, it doesn't tell what to
> > check if the voltages are
> > > wrong
> > > > only if they're not there. any tricks would be
> > appreciated been on this
> > a
> > > > long time and am in the same spot duh!!!!!
> > > > al marquardt
> > > > ampm@xxxxxxx
> > > >
> > > >
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