On 22/2/07 19:39, "Tony Duell" <ard at p850ug1.demon.co.uk> wrote:
I think
it's gotta be a ground-fault that's causing Witchy's problems.
I am almost sure it is.
Well, tonight I stripped the PSU down and there aren't any filtering caps,
at least not the X type ones I'm familiar with. Instead the mains cable
plugs into a honking big sealed tin box that terminates in a 2 inch earth
wire and 2 spade connectors that the live and neutral hook up to. Said earth
wire is bolted to the chassis and joined to a similar bolt holding the fan
to the case.
Anyone seen something like this 'mains plug in a sealed tin box' arrangement
before? The thing's got to be 4 or 5 inches by 2.5 inches so whatever goes
on in there is anyone's guess. If I was at work I may be tempted to unhook
the earth wire that's bolted to the chassis but it's there for a
reason....though normally I'd expect that to be there to ensure the psu
casing was never live.
In other news the NeXT cube I picked up yesterday in a non-working state has
a bad hard drive that's drawing too much off the PSU. Bah.
--
Adrian/Witchy
Binary Dinosaurs creator/curator
Www.binarydinosaurs.co.uk - the UK's biggest private home computer
collection?