3 May
2010
3 May
'10
12:43 p.m.
Tony Duell wrote:
And I am not looking forward to having to repair our
Bravia. According to
the service manual, you board-swap the PSU but fix the signal processing
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
MZ-RH1 is available as a spare part. I seem to recall there are a couple
of parts in the disc drive that are only available as part of a full
drive mechanism, but the laser unit and magnetic head are (IIRC)
replaceable. As is most of the disc eject mechanism. And the front
plastic, which just LOVES to pick up scratches.
Now how can Sony come up with one device with a display that's utterly
impossible to scratch up (my Sony-Ericsson C902 mobile phone) and
another that scratches if you look at it wrong... ?
Getting spare parts would be the trick -- in my experience, buying parts
from Sony is a task only a masochist would enjoy.
That's a PCB containing BGA-packaged chips,
fine-pitch PQFPs, etc. And all you get is a schematic, no waveforms, or
anything like that. Hmmm....
Bah, PQFPs aren't difficult to deal with. Hot air soldering stations can
be had for a pittance these days (I spent about ?70 on mine), and the
BGA and PQFP nozzles cost a few quid each, maybe ?10 at the most.
It's getting the blasted temperature profile right that's the trick...
--
Phil.
classiccmp at philpem.me.uk
http://www.philpem.me.uk/