Yes. the old style main switch (pre 2N) can cause problems. Firing the
shutter (mainly the mirror going up /down) slaps this switch closed and
creates a sliding action on the contacts which may help keep them clean.
This switch should not be confused with the A-M switch on the lower ceramic
circuit which switches between auto and manual.
John Hermanson
___________________________________
http://www.zuiko.com
Camtech, Olympus Service since 1977.
21 South Lane, Huntington NY 11743-4714
Phone/fax 631-424-2121
Free Olympus Manuals: 1-800-221-3000
___________________________________
----- Original Message -----
From: <clintonr@xxxxxxxxxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Friday, March 02, 2001 10:53 PM
Subject: Re: [OM] life span of OM's (OM-2 observation)
| FWIW -- I've observed that, with regard to OM-2 cameras (not 2n's or
| 2s's), those that are used at least periodically have the fewest
| malfunctions overall, particularly those due to lock-ups. John may back
| me up on this, but I suspect that periodic to frequent use keeps the
| main- and sub-switches (that activate the main circuit) from
| "tarnishing", a problem that causes most lock-ups. OM-2's that sit
| unused almost always have bad switches. (_Any_ OM-2 or 2n can develop
| bad contacts in the _mode_ switch, but that usually results in erratic
| exposures, not lock-ups.)
|
| < This message was delivered via the Olympus Mailing List >
| < For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
| < Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
|
|
< This message was delivered via the Olympus Mailing List >
< For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
< Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
|