[TechAssist] Re: Sony KV-32TW77 Sound but no high voltage

If the power is intermittant then check the horiz driver transformer and
transistor for bad connections.

Tony Saracco
TCS ELECTRONICS
Elgin , IL 60120
847-695-1928
tcselectronics@xxxxxxxxxxxxxxxx
----- Original Message -----
From: "walter wood" <wwood_38478@xxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, September 04, 2003 9:49 AM
Subject: [TechAssist] Re: Sony KV-32TW77 Sound but no high voltage


> I'm pretty sure that the problem is bad
> connection(s).
> The set has come on and played a short while during
> the course of checking it.
> I'm going to resolder even though it all looks
> good.
> Thanks
> Walter
>
> --- tony saracco <tcselectronics@xxxxxxxxxxxxxxxx>
> wrote:
> > scope base of horiz output for momentary signal
> > when power up, If present
> > you more than likely have a bad flyback or short
> > on the secondary of
> > flyback.
> >
> > Tony Saracco
> > TCS ELECTRONICS
> > Elgin , IL 60120
> > 847-695-1928
> > tcselectronics@xxxxxxxxxxxxxxxx
> > ----- Original Message -----
> > From: "walter wood" <wwood_38478@xxxxxxxxx>
> > To: "Tech Assist" <techassist@xxxxxxxxxxxxx>
> > Sent: Wednesday, September 03, 2003 1:26 PM
> > Subject: [TechAssist] Sony KV-32TW77 Sound but no
> > high voltage
> >
> >
> > > Set has good audio but no high voltage.
> > > Horizontal output transistor has 135 volts on
> > the
> > > collector, and checks good in circuit.
> > > The Stand by/Timer led never quits flashing.
> > > I almost never see a sony.
> > > Ideas??
> > > TIA
> > > Walter
> > >
> > > =====
> > > Walter Wood
> > > Future Tech Home Center
> > > 2786 Hwy. 43 N.
> > > Lawrenceburg Tn. 38464
> > > 931-829-3337
> > > Fax 931-829-4044
> > > mailto:wwood_38478@xxxxxxxxx
> > >
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> =====
> Walter Wood
> Future Tech Home Center
> 2786 Hwy. 43 N.
> Lawrenceburg Tn. 38464
> 931-829-3337
> Fax 931-829-4044
> mailto:wwood_38478@xxxxxxxxx
>
> __________________________________
> Do you Yahoo!?
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