On Tue, 8 May 2007 15:56:51 +0100, "Graham" <> wrote:
|!
|!"News Reader" <> wrote in message
|!news:f1onnt$q80$...
|!>
|!> Hi,
|!>
|!> Can I get peoples opinions on and suggestions of lay / informal remedies
|!> to intermittent faults.
|!>
|!> My /one suggestion is "bouncing", such as with a soft surface - e.g. a
|!> bed. "Grasp device at one end, 'bounce' onto and off soft surface. Plug in
|!> and try again".
|!>
|!
|!In the early '90s we were supplying BBC model B's to Pharmacies.
|!The PSU suffered from dry-joints and the official trouble-shooting
|!guide said something like this.
|!
|!"If the computer fails to start up, lift up the entire machine to a height
|!of four inches above the bench, and let go"
I saw this when I was in the RAF. There was a very *large* Senior Tech
Electrical who was a whizz on the Comet aircraft. When he had a snag he
told his little SAC to go and jump by the ??th window on the right/left as
the case may be. The SAC did that and came back. If the snag was still
there the above was repeated. If the snag was still there he heaved
himself out of the Engineers chair trundled down the Comet and jumped by
the ??window on the left/right. The Comet shuddered. The snag
disappeared. It was a sticking relay. He knew where every relay was and
cleared them as above.
--
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