James Sweet wrote:

wrote in message
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Choreboy wrote:
The computer output was easier for a probe, being holes. None of the 15
holes carried any signal I saw. Two sat at 5V. The rest were at
ground. With a DMM, one of the signal holes (horizontal sync, I think)
showed zero ohms, but that could be normal.

That's not normal, there should be at least 75 ohms to ground.


Which may be what 75 ohms looks like depending on the range the meter is set
on. I suspect there's visible damage inside the monitor, I'd open it up and
look at the board where the cable plugs in. Lightning is interesting stuff,
we don't get much of it out here though.

I got 75 on the R, G, and B signal pins. Without a schematic, I
wondered if the sync pin was fed by a transformer, in which case zero
ohms could have been correct.

When I checked the monitor pins, a scope showed several problems. A
local drugstore chain has refurbished computers and monitors similar to
theirs for $250. Why fix it?