4 May
2010
4 May
'10
11:53 a.m.
Tony Duell wrote:
The manua is inconsistent. At one place it claims that field repair of
the PSU is not supported for safety reasons. At another it says that the
PSU is a bought-in module, not made by Sony, so no service information is
available.
And I am not looking forward to having to repair
our Bravia. According =
to=20
the service manual, you board-swap the PSU but
fix the signal processin=
g=20
PCB at component level.
Wow. Knowing Sony, I'd have expected that to be the other way around.
But that said -- last time I checked, just about every custom LSI in the=20
MZ-RH1 is available as a spare part. I seem to recall there are a couple=20
THis does not suprise me. Sony are one of the better companies for
selling spares.
Bah, PQFPs aren't difficult to deal with. Hot air
soldering stations can=20
True. But the fine-pitch ones are a little more challeneging.
be had for a pittance these days (I spent about =A370
on mine), and the=20
BGA and PQFP nozzles cost a few quid each, maybe =A310 at the most.
It's getting the blasted temperature profile right that's the trick...
I still don't fancy the job of changing a BGA chip. Particualarly if I am
not certain it's the problem....
-tony