[TechAssist] Re: panasonic tv. model#CT27G23W volume at full blast would not turn down
- From: "junior hurdle" <jselectronics@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 12 May 2004 20:31:55 -0400
found the problem , it was a zenner diode conneted to the audio outputs,
----- Original Message -----
From: "peggs" <peggs@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>; <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, May 12, 2004 1:30 PM
Subject: [TechAssist] Re: panasonic tv. model#CT27G23W volume at full blast
would not turn down
> The Ouptuts don't have to be bad.
> If the same DC voltage is used for each output, and the Voltage is at
> MAX.........
>
> Peggs
>
> At 08:12 AM 5/12/04, junior hurdle wrote:
> >it has two audio outputs so i was thinking that they both cant have the
same
> >problem ,
> >but i'll check that anyway , u may be right.
> >----- Original Message -----
> >From: "peggs" <peggs@xxxxxxxxxxxxx>
> >To: <techassist@xxxxxxxxxxxxx>; <techassist@xxxxxxxxxxxxx>
> >Sent: Wednesday, May 12, 2004 12:08 PM
> >Subject: [TechAssist] Re: panasonic tv. model#CT27G23W volume at full
blast
> >would not turn down
> >
> >
> > > get a pinout of the audio output.
> > > one of the pins may have a dc voltage that varies to raise and lower
> > > volume.
> > >
> > > Peggs
> > >
> > > At 08:56 PM 5/11/04, junior hurdle wrote:
> > > >hi techs ,
> > > > i am working on this panasonic tv model# ct27g23w . the volume is
at
> > > > full blast and is not
> > > >lowering. u can see the vol bars changing onscreen when u press the
up /
> > > >dwn buttons. but this has no effect on the
> > > >vol. I dont have a schematic but i was checking the pins on ic 001
(the
> > > >system cont) to see which one changes when
> > > >i press the vol control .
> > > >but the only one that changes is pin 5 which is the input pin from
the
> > > >switches.
> > > >can any one give me an idea as to what may be the problem?
> > > >and i have a good systm cont ic from a smaller set , can i try this
one
> >in
> > > >the biger set?
> > > >thank u.
> > > >Junior Hurdle
> > > >J'S Electronics
> > > >howells + rd,
> > > >St. Michael
> > > >Barbados
> > > >246-2515687
> > > >Email: jselectronics@xxxxxxxxxxxx
> > > >
> > > >
> > >
> >
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