[TechAssist] Re: Sony KV32S40 power supply question

  • From: "jonas miglinas" <miglinasj@xxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Fri, 5 Sep 2003 07:59:32 -0500

Check your crt board if it has a TDA6108, 9,or 10 IC. This IC shorts and
will blow the regulator instantly. (I believe it shorts between pins 4-6)

Jonas Miglinas
Miglinas TV
Chicago
----- Original Message -----
From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, September 05, 2003 5:28 AM
Subject: [TechAssist] Re: Sony KV32S40 power supply question


> I wouldn't trust their parts. Give it another whack with parts from a
> reliable source.
>
> Bob Waterman, CET® #RI-28
> Master Technician License #9109
> Service Manager / Parts Manager
> Gemini Computer, TV, & Security Alarms
> (508)695-7302
> (508)695-7769 FAX
> geminitv@xxxxxxxxxxxxxxxx
> geminitv@xxxxxxx
> www.geminicomputertvsecurityalarms.com
>
>
> ----- Original Message -----
> From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, September 04, 2003 9:35 PM
> Subject: [TechAssist] Re: Sony KV32S40 power supply question
>
>
> > This one has a mind to be stubbron. Replaced IC601, the HOT, and the
> > fusable. IC601 (MX0841) and  C609 promptly exploded. (Very litteraly)
the
> > HOT and the fusable resistor are still fine after replacement. This MX
> came
> > from MAT weight, markings and package were consistant with the original,
> > anyone had problems with these? (needed a few things they had so thew it
> in
> > with order)......
> >
> > Peter Oliver
> > Tucson Radio TV
> >
> >
> > From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
> > Reply-To: techassist@xxxxxxxxxxxxx
> > To: <techassist@xxxxxxxxxxxxx>
> > Subject: [TechAssist] Re: Sony KV32S40 power supply question
> > Date: Tue, 2 Sep 2003 07:52:57 -0400
> >
> > Don't forget to look for the open fusible resistor in the power supply
as
> > well. The most common causes for HOT failure are solder connections on
> HDT,
> > defective flyback, arcing CRT, and there is usually a small electrolytic
> > (0.47mfd/50V) in the horizontal driver circuit that I always replace on
> this
> > vintage.
> >
> > Bob Waterman, CET® #RI-28
> > Master Technician License #9109
> > Service Manager / Parts Manager
> > Gemini Computer, TV, & Security Alarms
> > (508)695-7302
> > (508)695-7769 FAX
> > geminitv@xxxxxxxxxxxxxxxx
> > geminitv@xxxxxxx
> > www.geminicomputertvsecurityalarms.com
> >
> >
> > ----- Original Message -----
> > From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Monday, September 01, 2003 7:19 PM
> > Subject: [TechAssist] Sony KV32S40 power supply question
> >
> >
> >  > Sony KV32S40
> >  > AA-2D chassis family
> >  >
> >  >         Unit dead with flashing LED (continous).  Has HOT blown, and
> > MX0841
> >  > shorted. Connections on Horz drve transformer look ok, Will solder
> > anyway.
> >  > Conection on Horz drive transistor a little poor. Customer claims
light
> >  > started blinking, left the room and it was gone. Any caviots for this
> >  > particular supply? Not sony ASC so this series just starting to
trickle
> > in,
> >  > first one of the MX containing series that I recall coming in with
> power
> >  > supply fault, usually just see the sets with the discretes, schematic
> > looks
> >  > like they packaged the transisors and the VDR's in one..Yes I was
> working
> >  > labor day to clean up the backlog from last week, got done at 3:45
and
> > this
> >  > set came it after 3:00. I'm going to have to order parts on this one
> and
> > a
> >  > few other sets tomorrow but ideas in the the shipping interm time may
> be
> >  > usefull.
> >  >
> >  >
> >  > Peter Oliver
> >  > Tucson Radio TV
> >  >
> >  > _________________________________________________________________
> >  > MSN 8: Get 6 months for $9.95/month.
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> >  >
> >
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