fixing thigns rather than replacing them. Rmember I routinely
repairr cooling fans to component level. I've repaired switches and light
bulbs too :-)
CFL "energy saving" bulbs or incandescents?
Samll incandescent filament bulbs. I thought I'd mentioend this before.
It was a bulb with a difficult-to-find cap, so I broke the old glass
(containing the burnt-out filamanet) out of the cap, cleaned up the
latter, and soldered a wire-ended bulb of the right rating to it.
that the filter units on those tend to come apart fairly
easily -- they're not potted and the metal can is easy to unsolder. You
cna then repair/replace the filter.
This one was -- IIRC -- welded to the metal frame. Opening it would have
involved a lot of cutting and no guarantee that it would go back
together in one piece.
Given that it was useless anyway, I think I would have tried cutting the
end off the filter section. You migth have been able to extract the
defective components and wire in standard filter module (thus keeoign the
votlage selector feature of the original).
I have come across these units on some HP devices. The Thinkjet printer
and the HP9817 computer spring to mind. There are several versions of the
camshaft, one just operates one of the contacts fopr 115V/230V switching
of an SMPSU, the other operates all the contacts for configuring a 0-120
and 0-100-120 priamry mains transformer for 100V, 120V, 220V and 240V.
The Thinkjet does that, and the service manual doesn't explain it (the
one on my shelf has an extra sheet in it now giving the wiring..)