[TechAssist] Re: 2002 SONY 35" - Fried
- From: woodwart <thomas.woodward@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Tue, 19 Feb 2002 11:20:34 -0500
I know this may sound funny but I have had a blown tuner cause this on
more than one occasion the data lines are shorted not allowing full
deflection
to check unsolder the clock and data lines from the tuner
Good luck
Frank Luu wrote:
> Bil:
> I don't have the cure for this but curious to know the
> outcome of this unit. just post your fix after you
> done....
> also
> Q512 may need replaced.
> Frank
>
> --- Bil Green <tv.vcrrepair@xxxxxxxxxxx> wrote:
> >
> > Sony KV-35S42
> > 2002 Model
> > 35" TV
> >
> > HV o.k.
> > No video
> > Vert deflection on top half only
> >
> > Diodes D1262, D1263 & D1264 shorted and circuit
> > traces between these diodes
> > are fried (as in lightning), but no lightning or
> > evidence of a power surge
> > or spike. Also IC1401 (CXA2021S) blew up. And the
> > power supply seems to be
> > o.k.
> >
> > Could this have possibly been caused by a failure
> > within the TV? I seems
> > like it would take too many amps to cause the copper
> > traces to vaporize like
> > this. This usually happens when thousands of volts
> > with PLENTY of available
> > amps hits as in lightning or an enormous power
> > surge.
> >
> > Bil
> >
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--
Thomas S. Woodward
Multimedia Support Technician
Master tech 09165 A+
Simmons College
300 The Fenway
Boston Ma. 02115
617-521-2764
617-719-3958 (Cell)
mailto:woodwart@xxxxxxxxxxx
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