Hi
>
> I recently aquired an old(ish) Tektronix digital scope which is faulty and
> does not start up; instead, the power turns on for 1/2 of a second then
off
for 1/2 a second and a 'clicking' noise comes from the unit (this process
> repeats). I take it this is a faulty power supply, possibly tripping out
due
to excessive current being drawn. I have heard this problem has occured on
> other Tektronix scopes; has anyone had any experince of this fault, and if
> so, where exactly does the problem lie?!
>
> Thanks!
>
> Angus Thomson
>
In general, anywhere. Look for shorted tantalum caps. If possible, disconnect subassemblies.