Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
01-30-2012, 06:19 PM   #1
Forum Member
miltllama's Avatar

Join Date: May 2010
Location: Calgary, Alberta
Photos: Gallery
Posts: 86
Pentax ME not working??

I recently purchased an ME with an M 50/1.7. It was a cheap local sale, and I mainly got it just for the lens, but I figured it'd be cool to try an older manual focus SLR. I immediately appreciated the viewfinder, but the meter didn't seem to be operating. I pulled out the batteries and they looked pretty old and corroded, so I threw them out and got some new ones to put in. However, that didn't fix the problem. I looked up the manual and found out how the meter is supposed to be activated, but it wasn't responding. Is it possible that the old batteries leaked into the camera and wrecked something? I'm not terribly fussed about it, but it'd be nice to be able to use it if I want to.

01-30-2012, 07:00 PM   #2
Veteran Member
hcarvalhoalves's Avatar

Join Date: Aug 2010
Location: São Paulo, Brazil
Posts: 836
If the batteries were corroded, there's probably rust left on the battery contacts. Try cleaning those contacts.

Depending on the level of corrosion, you can use a pencil eraser, vinegar or baking soda. Isopropyl alcohol is best, but you probably don't have it available. You can also apply steel wool to get an uniform and shiny surface where the batteries can make contact.
01-30-2012, 07:06 PM   #3
Veteran Member

Join Date: Aug 2010
Location: Winnipeg MB
Photos: Gallery
Posts: 346
I would suggest that you clean the battery contact; it looks like the contact (+) and the door (-) are made of stainless steel. Use only the silver oxide batteries. The batteries in my ME and HP calculator are about 25 years and are still good and no leakage.

Pull rewind lever out about 30 degree to turn the power on, remove lens cap and press shutter button half way, you will see in VF a red dot to indicate the shutter time.

Last edited by violini; 01-30-2012 at 07:14 PM.
01-30-2012, 07:29 PM   #4
Giveaway winner!
MysteryOnion's Avatar

Join Date: Dec 2007
Location: beantown
Photos: Albums
Posts: 933
The ME Super does not need the rewind lever out or the film advance either. Make sure the selector knob is either in the AUTO (white lock buttom up) or M (press the white lock button from AUTO to unlock). As suggested by hcarvalhoalves... careful cleaning of contact points. The corrosion should not have left raised pimples on the battery cap (-) that contacts the battery, if you see badly pitted or a rough surface, that is an indication of severe corrosion and may need are harsh scratching to find metal again. The spring connector (+) inside has two raised nubs or bits that contact the battery, if the corrosion has put a lot of green or dark black gunk bits on the spring, then the leakage might have traveled deeper inside and corroded the wire or the rivet that connects things.

01-30-2012, 08:04 PM   #5
Forum Member
miltllama's Avatar

Join Date: May 2010
Location: Calgary, Alberta
Photos: Gallery
Posts: 86
Original Poster
Yep, it was the door, an eraser worked. Thanks guys!

  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
batteries, meter
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Pentax K-r FF problems- Pentax are working on new firmware (evidently) Barry F Visitors' Center 2 12-14-2011 04:26 PM
Pentax Kx LCD Screen not working. ArtyDiana Troubleshooting and Beginner Help 4 11-19-2011 09:50 AM
Pentax 60-250 AF Stopped Working MattMoore Pentax SLR Lens Discussion 23 06-16-2011 06:29 AM
Pentax k-x not working with my tamron lens, or older pentax lenses Evanmackmusic Pentax DSLR Discussion 5 06-04-2010 03:24 AM
Pentax K X screen not working!! mrmoses Pentax DSLR Discussion 20 05-13-2010 08:15 PM

All times are GMT -7. The time now is 08:48 AM. | See also:, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]