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From: lupienj@hpwadac.hp.com (John Lupien)
Newsgroups: comp.sys.mac.hardware
Subject: Odd monitor problem
Summary: goes blank when warm
Message-ID: <1912@hpwala.wal.hp.com>
Date: 5 Apr 91 15:36:14 GMT
Sender: netnews@hpwala.wal.hp.com
Reply-To: lupienj@hpwarq.hp.com (John Lupien)
Lines: 23

I don't normally read this group, but I have come across a hardware problem
that seems unusual, and I was wondering if anyone can offer some insight
or guidance. A friend of mine has a Mac which works fine until it warms up.
Once warm, the monitor intermittently goes blank. A rap on the side of the
box (sometime a couple of raps) brings it back, and if you slant the system
to the right, the symptom does not occur. I took the back off and checked
the cables and connectors: all seem to be seated firmly, with no loose wires.
Having no expertese regarding the circuitry, I did not want to poke around
any deeper without guidance (or help).

If anyone recognizes the symptom, please let me know. If not, I would be
glad to hear about folks in the eastern Mass or RI area that could be trusted
to properly trouble-shoot the problem at not-too-exorbitant rates.

If you have any help to offer, please send e-mail. I will monitor the newsgroup,
but since newsgroup dissemination can be rather slow, a note would be appre-
ciated.

Thanks,

---
John R. Lupien
lupienj@hpwarq.hp.com