[TechAssist] Re: Sony KV32S40 power supply question
- From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 5 Sep 2003 06:28:38 -0400
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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