[TechAssist] Re: Sony KV-32s10-no video or audio.
- From: "Leonard G. Caillouet" <lcaillo@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 1 Jul 2003 16:01:39 -0400
Sounds like a bad switching transformer.
Leonard G. Caillouet
Electronics World
Gainesville, FL
352-332-5608
352-332-5668 (fax)
----- Original Message -----
From: "becyn" <becyn@xxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, July 01, 2003 11:24 AM
Subject: [TechAssist] Re: Sony KV-32s10-no video or audio.
> Jorge,
>
> Your problem must be in the SMPS if it only gave the bulb 76V as well.
Check
> the raw supply to the SMPS. Sometimes there are low voltage prob's due to
> bad filter cap, high resistor value, or open rect diodes. otherwise it's a
> feedack/control circuit prob.
>
> Jim McVey
> McVey Alltronix
> 327 Broadway
> Newburgh Ny 12550
> ph: 845 561 8383
> fx: 845 561 9017
> Consumer electronics &
> computer service.
> Factory authorized for
> over twenty brands.
> ----- Original Message -----
> From: "jorge miret" <jorge_miret@xxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Tuesday, July 01, 2003 12:00 PM
> Subject: [TechAssist] Re: Sony KV-32s10-no video or audio.
>
>
> > Jim:
> > I already did that with the bulb and got the same results and I even
> replaced the flyback from a known good working tv and same,all my voltages
> are low.
> > Thanks,
> > Jorge.
> > PD.Yes this uses the SMPS with Q601,602 but I replaced them just in case
> and same.
> > becyn <becyn@xxxxxxxxxx> wrote:
> > jorge,
> >
> > Disconnect the FBT from the B+ and sub a 40W bulb for the load. See if
the
> > power supply can sustain it at the proper voltage.
> >
> > BTW, isn't that set using a SMPS?
> >
> > Jim McVey
> > McVey Alltronix
> > 327 Broadway
> > Newburgh Ny 12550
> > ph: 845 561 8383
> > fx: 845 561 9017
> > Consumer electronics &
> > computer service.
> > Factory authorized for
> > over twenty brands.
> >
> > ----- Original Message -----
> > From: "jorge miret"
> > To:
> > Sent: Tuesday, July 01, 2003 9:40 AM
> > Subject: [TechAssist] Re: Sony KV-32s10-no video or audio.
> >
> >
> > > Hello:
> > > Have Sony TV kv-32s10 with black screen,no raster,no audio.Have
checked
> my
> > voltages and all are low:
> > > 200V to CRT=118V
> > > 1000 to CRT=600V
> > > 12V=7.6V
> > > 9V=6.1V
> > > 5V=4.7V
> > > B+ to flyback=76v
> > > Have H.V.
> > > The stby led keeps flashing every second.I replaced the flyback and no
> > improvement.I have the Sams but I am lost with this one.Any help is
> welcome.
> > > TIA,
> > > Jorge.
> > > I replace
> > >
> > > Jorge Miret-Puerto Rico
> > > J.C.Electronic Repairs
> > > Tel:787-761-0920
> > > jorge_miret@xxxxxxxxx
> > >
> > > ---------------------------------
> > > Do you Yahoo!?
> > > SBC Yahoo! DSL - Now only $29.95 per month!
> > >
> > >
> >
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> > J.C.Electronic Repairs
> > Tel:787-761-0920
> > jorge_miret@xxxxxxxxx
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> > ---------------------------------
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