Date : Mon, 14 Sep 2009 23:14:07 +0100
From : jumbos.bazzar@... (Mark Haysman)
Subject: Mouldy beebs!
> As for the rest of the motherboard, I don't have a schematic handy, but
> I seem to recall the Master and B are pretty much devoid of any form of
> potentiometer. The cartridge slots on the Master might be a bit of a
> worry, though, and the speaker (but the latter is removable and there's
> no excuse for putting one in a dishwasher).
>
The beeb does have Pots, one for the audio level, and one for the speech
speed.
http://www.retroclinic.com/misc/wetwash.jpg
Make sure you remove all socketed ICs before you start, and the lid to the
UM1233. No need for any IPA after the wash, but get a NEW garden sprayer,
little hand held one you pump up, fill it with de-ionised water from a car
shop, and rinse the board down with that - the de-ionised water does not
leave any residue on drying.
When drying, use a can of air, and a hair dryer, but be careful not to
overheat components.
Mark.