[TechAssist] Re: Sony KV35V36 Blue screen with retrace(bad tube)
- From: "ERIC DERENG" <cctv-vcr@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 19 Mar 2002 09:53:03 -0800
Sounds good! Where do we find these little lifesavers?
Carson City TV-VCR
2164 E Hwy 50
Carson City, NV 89701
(775)887-9089
fax (775)887-1067
----- Original Message -----
From: "Ronnie Alston" <raalston@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, March 18, 2002 1:41 PM
Subject: [TechAssist] Re: Sony KV35V36 Blue screen with retrace(bad tube)
>
> What you probably have is a heater to cathode short, one side of the
heater
> volt source goes to ground so therefore the cathode is shorted to ground!
> The key point of the filament transformer is that the secondary side of
the
> transformer is a "floating" filament volt supply, it is "isolated", not
tied
> to ground, therefore this eliminates the path to ground, this has been a
fix
> for this type of problem for ages. Works great! Hope this helps!
>
> Ronnie Alston
> Alston's TV & Electronic Service
> 110 North Third Street
> Ozark, Ark. 72949
> 479-667-2220
> Fax 479-667-2220
> raalston@xxxxxxxxxxxx
> ----- Original Message -----
> From: "ERIC DERENG" <cctv-vcr@xxxxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Monday, March 18, 2002 10:18 AM
> Subject: [TechAssist] Re: Sony KV35V36 Blue screen with retrace(bad tube)
>
>
> >
> > We're a little bewildered about the whole isolation transformer on the
> > heater thing...please expound.
> >
> > Carson City TV-VCR
> > 2164 E Hwy 50
> > Carson City, NV 89701
> > (775)887-9089
> > fax (775)887-1067
> > ----- Original Message -----
> > From: "Shoreline Electronics" <jstielau@xxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Thursday, March 14, 2002 5:35 AM
> > Subject: [TechAssist] Re: Sony KV35V36 Blue screen with retrace(bad
tube)
> >
> >
> > >
> > > The isolation transformer is the way to go. Had to use them several
> > times
> > > on the Sony's with NO callbacks.
> > >
> > >
> > > Jeff Stielau
> > > Shoreline Electronics Repair
> > > 125 Beech Tree Lane
> > > Westbrook, CT 06498
> > > 860-399-1861
> > > 860-664-3535 (fax)
> > > jstielau@xxxxxxxx
> > > ----- Original Message -----
> > > From: "Barry MacInnes" <foxhole@xxxxxxxxx>
> > > To: "Tech Assist" <techassist@xxxxxxxxxxxxx>
> > > Sent: Thursday, March 14, 2002 8:51 AM
> > > Subject: [TechAssist] Sony KV35V36 Blue screen with retrace(bad tube)
> > >
> > >
> > > >
> > > > Hi Gang,
> > > > This symptom is intermittent and tapping on the neck will bring
on
> > the
> > > > symtom. Sony informs me it is a bad CRT. I have installed a
isolation
> > > > transformer on the heater and am shop testing it. I have also done
> this
> > on
> > > a
> > > > Model KV27S76 and the customer is field testig it. Has anyone had
> long
> > > term
> > > > sucess with this fix?
> > > > Thanks,
> > > > Barry
> > > > TV Service Clinic
> > > > W. Lebanon, NH
> > > >
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