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Classic Camera Repair » Archives-2004 » Pentax ME Super LED's dead camera inoperative « Previous Next »

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Ray Kucalaba

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Posted on Wednesday, September 08, 2004 - 11:56 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

I hope there is someone who can help me. I stored my camera in the bedroom closet (batteries removed)for 15 years. I wanted to give the camera to my grandchild so I replaced the batteries only to find that the camera was electronically dead (no led's light). I checked the voltage of the new batteries (1.55v ea.)so I put them back. I came across Henry Talbot's article on disassembling top cover of an ME and decided to check voltage at shutter main switch. There is good continuity at switch when shutter is depressed. I found that over the course of about a week there was substantial battery drain. The battery voltage now reads .65v at switch and .96v at baseplate motor winder terminal. Has anyone come across this problem? The service manual I downloaded does not have a schematic diagram and is a rather poor Japanese translation.
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Henry

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Posted on Wednesday, September 08, 2004 - 05:41 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

At first I was going to inquire if, perhaps, the batteries were installed backwards. I've done that more than once! But with added battery drain...hmmm. The LED's are on a timer. So if the shutter button isn't stuck slightly down there might be a short...a rather high resistance one.

Henry
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Jon Goodman

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Posted on Wednesday, September 08, 2004 - 08:58 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

If it has just been sitting idle for 15 years, maybe one of the electrolytic capacitors has gone bad...basically dried out, creating a short circuit of sorts?

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