[TechAssist] Re: JVC AV-27120

  • From: "Minh Dao" <michaldao@xxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Fri, 01 Feb 2002 18:13:54

                       hi
i get the manual but in paper.Do u want a copy of it ?

>From: "Dave Routson" <davestv@xxxxxxxxxxx>
>Reply-To: techassist@xxxxxxxxxxxxx
>To: <techassist@xxxxxxxxxxxxx>
>Subject: [TechAssist] Re: JVC AV-27120
>Date: Fri, 1 Feb 2002 11:29:25 -0600
>
>
>Hi Shaun, I don't have a print on your
>set or any notes but, normally if you
>have the tuning voltage at the tuner
>and micro functions for on/off vol etc..
>and you have already replaced the
>tuner as you said, twice.... I would
>look very carefully at the data and
>signal lines running to the tuner. Most
>of them are very small and quite easy
>to have one open or break and
>cause loss of tuner. Over the last
>40 years in this business, experience
>tells me that over half the troubles
>are physical circuit related trouble such
>as cracks, breaks or cold joints.
>Just trying to help a little and maybe
>someone else has print or notes for
>more accurate pinpoint.
>    Dave Routson (Dave's TV - Cleburne, TX)
>
>----- Original Message -----
>From: "Shaun" <ssroark@xxxxxxxx>
>To: <techassist@xxxxxxxxxxxxx>
>Sent: Friday, February 01, 2002 9:22 AM
>Subject: [TechAssist] Re: JVC AV-27120
>
>
> >
> > 2nd request on this unit scroll down for problem,
> >
> > Shaun
> > ----- Original Message -----
> > From: "Shaun" <ssroark@xxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Thursday, January 31, 2002 6:58 PM
> > Subject: [TechAssist] JVC AV-27120
> >
> >
> > > Hi Tech's, I have asked about this tv before. It has no reception only
> > snow on all channels. When I check the tuning voltages the TU pin never
> > changes always stays at 33 volts. From what I can tell the tuning 
>voltage
> > comes from inside the tuner being controled by the micro through the 
>data
> > lines. I have replaced the tuner 2 times thinking the first replacement
>was
> > defective. I do not have the exact schmedic for this one so if anyone 
>has
> > seen this before any help would be a great help.
> > >
> > > Shaun
> > > Advanced Electronics
> > > Fort Morgan, Co 80701
> > >
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