Thank you for the comprehensive answers to my previous questions - very kind of you!
I feel I may be exposing myself to ridicule in asking the question which follows regarding the 'washing of the keyboards'. (Gateway2000 Anykey with the dreaded melted plastic rivets). I can't see, in the posts, a definitive statement of exactly what is swished around in warm soapy water! It goes against all instincts to even allow 'dampness' near electrical components - even if one takes the drying out very seriously. I have to ask because the cause of the fault is unidentified and the remedial action, while sometimes sucessful, not being completely understood, it just might be the case that unusual and apparently contra-conventional action is required?
What is washed? Is it what remains after removing the printed circuit board or does it include the printed circuit board?