Re: KV-20EXR10 PS Problem

From: G. Louie (louie_at_u.washington.edu)
Date: 10/13/04 

Date: Wed, 13 Oct 2004 05:47:48 +0000 (UTC)

I've changed a several of these modules, and a local repair guru suggested
to just slap a much bigger heat sink on it. So I've fashioned several,
huge, ugly, *** metal/extruded angle aluminum things that bolt to the
original heat sink and module, yet miss the plastic cabinet (Check the
clearance.) Easier than installing a fan for me; every one has been an
original work of art! I think the temperature dropped 20 degs. No failures
yet. Also works on the 27EXR series.

In article <oZUad.7398$l07.1679@twister.nyroc.rr.com>,
Dave M. <gadget007@rochester.rr.com> wrote:
>After about two years, my Sony TV's Converter chip (STRS6301) failed. I
>replaced it with the original Sony chip. It was evident it's heat sink was
>getting too hot. A year or two later that converter chip failed. I replaced
>it with the ECG 7046 cross. That chip lasted 6 years, then blew. Inspection
>of all these chips showed blistering and discoloration of the poly case.
>Unless too much current has been drawn over all this time, I did notice the
>heat sinks fins are placed horizontally, which prevents air convection
>between the plates. I'm considering installing a mini-fan against the heat
>sink fins.
>
>Is there another solution (perhaps in a bulletin) for this overheating
>problem?
>
>Thanks,
>
>Dave M.
>
>