[TechAssist] Re: Sony KV35V36 Blue screen with retrace(bad tube)

  • From: "Ronnie Alston" <raalston@xxxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Tue, 19 Mar 2002 13:22:18 -0800

I get the transformers from a local electronics supplier.

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: Tuesday, March 19, 2002 9:53 AM
Subject: [TechAssist] Re: Sony KV35V36 Blue screen with retrace(bad tube)


>
> 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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