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07-24-2011, 06:56 PM - 2 Likes   #1
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Meter "Repair" on a Pentax MX

I just managed to fix an issue I was having with the MX meter, so I detailed it in a blog post, in hopes that it might actually help someone in the future.

Pentax MX Meter Fix

07-25-2011, 02:05 AM   #2
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Thanks for that !.
My MX meter has been intermittent for all the time I have owned it. (7 years)
Guess I have no excuse now but to fix it....
07-25-2011, 11:57 AM   #3
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Glad it was "helpful," Bob.
07-25-2011, 01:28 PM   #4
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QuoteOriginally posted by bobD Quote
Thanks for that !.
My MX meter has been intermittent for all the time I have owned it. (7 years)
Guess I have no excuse now but to fix it....
Intermittency is a 'good problem to have:' it most likely means no more than a bad connection.

07-25-2011, 08:26 PM   #5
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QuoteOriginally posted by Ratmagiclady Quote
Intermittency is a 'good problem to have:' it most likely means no more than a bad connection.
Yes, though intermittent faults always encourage me to temporary repair by 'percussive maintenance '... ... and because that is often successful I don't get around to a proper fix.

When things downright don't work then I am quick to reach for the tools and go hunting for smoke.
07-26-2011, 06:02 AM   #6
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LOL @ 'percussive maintenance.'
07-27-2011, 12:16 PM   #7
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Todd -

Well, I thought you had found the answer to my MX problem, but.... My meter works fine, but the button cells are drained within a week or so. This problem surfaced after I'd used the camera for several years; an Atlanta area shop tried twice to fix it. I ran across Todd's fix a year or so ago, but checking with a VOM shows that the contacts open and close properly.

Any MX users out there have any other ideas, or do I send it to Eric, The Pentax Man?
07-28-2011, 04:05 PM   #8
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QuoteOriginally posted by Todd Adamson Quote
LOL @ 'percussive maintenance.'
I believe Pentax recently brought that procedure back for the shutter on the K-5.

07-29-2011, 02:57 AM   #9
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The fix works!

You've just made it possible for me to fix the last functional fault on my chrome MX! Not a bad return on a $30 ebay purchase. Good instructions, well done!
08-07-2011, 07:51 PM   #10
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Thanks for the great guide Todd! my newly acquired MX seems to be chewing through power so this might just solve the problem.
08-07-2011, 08:38 PM   #11
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QuoteOriginally posted by Todd Adamson Quote
LOL @ 'percussive maintenance.'
otherwise known as the "technical tap" :-D
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