Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
12-15-2009, 04:46 AM   #1
Forum Member




Join Date: Aug 2007
Location: Dublin, Ireland
Posts: 84
P30t keeps winding on...

Went out to take some night shots a few nights back.

Took one shot and then wound the camera on. Tried to take another, this time using the self timer, and the shutter didn't release. Tried to wind the camera on and it kept going and going.

I've since taken the film out in a dark room and replaced it but the problem is still there.

Any ideas as to where the issue may lie?

12-15-2009, 10:17 AM   #2
Pentaxian
ryan s's Avatar

Join Date: Jan 2008
Location: Madison, WI
Photos: Gallery
Posts: 2,370
Does the shutter fire or is it inoperable? Is there a lot of resistance in the wind lever, or none at all?

With the camera empty of film, open in the back. On the right side, you'll notice the film takeup spool. To the left of that is a sprocket. When you advance the winder, does that sprocket move?
12-16-2009, 06:13 AM   #3
Forum Member




Join Date: Aug 2007
Location: Dublin, Ireland
Posts: 84
Original Poster
QuoteOriginally posted by ryan s Quote
Does the shutter fire or is it inoperable? Is there a lot of resistance in the wind lever, or none at all?

With the camera empty of film, open in the back. On the right side, you'll notice the film takeup spool. To the left of that is a sprocket. When you advance the winder, does that sprocket move?
The shutter doesn't fire. It can be pressed down as normal, but nothing happens.
I took the film out and the sprocket is winding is moving as normal.
12-16-2009, 10:46 AM   #4
Pentaxian
ryan s's Avatar

Join Date: Jan 2008
Location: Madison, WI
Photos: Gallery
Posts: 2,370
Ok, now it's time to dig deeper. The problem is going to be keeping the winding lever working with the battery out of it. You'd have to find a way to rig up the battery...use wire or something. I've never messed with a battery-dependant camera for long enough to warrant a solution...

Remove the battery and then remove the bottom cover. There is a small piece for the film rewind button...be careful to keep track of it.

Then, once under there, you'll see how stuff winds with the gears, levers, etc. There should be something "missing" its mark...just have to poke around with a small screwdriver.

I know it's not much help...but "poking around" and observing the movements usually tells you where the issue is

12-16-2009, 11:38 AM   #5
Forum Member




Join Date: Aug 2007
Location: Dublin, Ireland
Posts: 84
Original Poster
QuoteOriginally posted by ryan s Quote
Remove the battery and then remove the bottom cover. There is a small piece for the film rewind button...be careful to keep track of it.

Then, once under there, you'll see how stuff winds with the gears, levers, etc. There should be something "missing" its mark...just have to poke around with a small screwdriver.

I know it's not much help...but "poking around" and observing the movements usually tells you where the issue is
Sounds like a project for the Xmas holidays

Thanks for the help!
12-16-2009, 01:49 PM   #6
Pentaxian
ryan s's Avatar

Join Date: Jan 2008
Location: Madison, WI
Photos: Gallery
Posts: 2,370
Keep the cursing to a minimum and it can be an enjoyable hobby
12-17-2009, 02:41 PM   #7
Pentaxian
Just1MoreDave's Avatar

Join Date: Feb 2007
Location: Aurora, CO
Photos: Gallery | Albums
Posts: 4,814
I just started having this problem with my P3n (mostly identical). At first, exercising the camera would fix it for as long as the film lasted. Then returning the wind lever r-e-a-l-l-y slow would sometimes help. I haven't investigated yet. I just bought a spare camera from Ryan in case I need parts.

I know from previous experience that the bottom plate may stick a little under the lens mount when you try to remove it.
12-17-2009, 03:40 PM   #8
Pentaxian
ryan s's Avatar

Join Date: Jan 2008
Location: Madison, WI
Photos: Gallery
Posts: 2,370
It helps immensely if you can have a working camera side-by-side when diagnosing another

Most Pentax cameras look the same under the bottom plate, at least the basics. Digging any deeper is an adventure I have yet to go on

12-31-2009, 06:44 AM   #9
Forum Member




Join Date: Aug 2007
Location: Dublin, Ireland
Posts: 84
Original Poster
Does anyone have a photo of the workings of the P30t or similar?
I can't figure the problem out and my superA is at the other end of the country.
01-01-2010, 05:41 PM   #10
Pentaxian
Just1MoreDave's Avatar

Join Date: Feb 2007
Location: Aurora, CO
Photos: Gallery | Albums
Posts: 4,814
Here are some photos from my P3n. The P3 is the same, I hope the P30t is too. The red arrow in the first photo is resting on a black oxide colored pawl. If that part isn't moving correctly, it will cause the symtoms you describe. In the photo, the pawl is in the shutter cocked position.



When the shutter is released, the pawl moves away from the chrome part just above it in the photo. Wind the rewind lever and the camera looks like this:



You can see a gap between the black pawl and the chrome part. When the wind lever begins to return, another pawl engages the gear teeth in the chrome part. That's marked by the red arrow in this photo. After the fifth tooth clicks by, the black pawl should move back in contact with the chrome wheel. As the last tooth clicks by, there are three more teeth engaged by the black pawl. Then it should move back to the cocked position in the first photo.

On my camera, the problem was intermittent. I could nudge the black pawl back into position and it would work fine. I did this several times to figure out the mechanism. Now it works every time, so I don't exactly know what's broken. I don't want to take it apart further. If it acts up later, I can get it working without unloading film. You might be tempted to lubricate it, but I've read that these mechanisms are designed to use little or no lubrication.
01-07-2010, 10:51 AM   #11
Site Supporter




Join Date: Dec 2009
Location: Tennessee
Photos: Albums
Posts: 21
This advance problem is very common in the P and M series camera's. There is a lever which sits on a rubber bumper, it is suppose to move back to the set position after the camera fires. When this bumper get's sticky it hold the lever from moving back and doesn't let the shutter set for the next shot. And when it does set the film it might work for a while but will jam again.
Reply

Bookmarks
  • 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!
camera
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Dismental MX Winding Lever Assembly? frank Pentax Film SLR Discussion 3 12-13-2009 11:55 PM
Long and Winding Road Beachnutt Monthly Photo Contests 1 11-24-2009 07:43 PM
Night Winding road Ash Post Your Photos! 22 10-31-2009 11:27 PM
Samsung, you have a long and winding road... alexramos Pentax News and Rumors 9 09-11-2009 03:59 AM
Repairing SF1 winding mechanism mikey55 Pentax Film SLR Discussion 2 08-30-2008 08:21 PM



All times are GMT -7. The time now is 10:03 AM. | See also: NikonForums.com, 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?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top