Fix Old Cameras: AE-1 Release Magnet
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- เผยแพร่เมื่อ 2 ธ.ค. 2013
- Canon AE-1 or A-1 that will not release. This tutorial video shows how to troubleshoot and subsequently replace the release magnet in AE-1, A-1, and AE-1P film cameras.
a few books and tools www.amazon.com/shop/fixoldcam...
classic camera repair - www.phototronic.biz
Thank you so much! My camera AE-1P shutter release was acting up, and with this videos help I was able to fix it myself, you're a lifesaver!
Good to hear of your successful repair. Keep'em going.
I am so glad you made this tutorial! Luckily for me, just cleaning the contact surface between the holding magnet and the release linkage solved my problem of the stuck film advance lever. Thank you so much!!!!!
Thank you so much for posting this - I was able to fix my ae1 P all on my own just by cleaning the magnet! It started sticking and then not releasing at all earlier this week and I was worried i’d have to spend lots of money to either get it fixed or find a new one. Lifesaver!
I just got an ae-1 for 20 bucks and I fixed it with your tutorial! thank you so much!
This worked for me! My issue was a bit different (the magnet wasn't sticking so the mirror was releasing any time I used the advance trigger). Cleaned the contacts and it works great. I just hope I didn't do any damage sliding the cover off. It was stuck on there. So far it works perfectly!
THANK YOU SO MUCH!!!!! Camera has been broken for years and always thought I wouldn’t be able to figure it out, thank you for your help!
I have 2 Canon AE-1, one I got when I was in high school over 30 years ago and another I bought 10 years later as a backup. I haven't used them in 10 years since I went digital and now my 15 year old daughter is taking a black & white photography class in high school just like I did. Unfortunately when I put a 6v battery into both cameras nothing happened. I really appreciate you putting this video together. Thanks to you, they are both working again.
Excellent to hear. Thank you for your interest.
Hello dear Fix Old Cameras people!
First of all, thank you so much for uploading all these videos!! They helped me out before and they were an even bigger help when I started to work on two broken A1´s which I bought for like 7 dollars.
I followed all your steps in the video on the top plate remomval and exchanged parts in between the 2 bodys so that now I have one pretty decent looking fully funcntional one (top-plate wise)!! Thanks!
Then I looked at the release magnet because the shutter wasnt firing. I had to exchange the plastic covering of the magnet, since it was in the way of the advance lever thing. Now everything is working!! But I have one problem left...
Ever second or third time the shutter still doesnt go. But when I push in the multiple exposure lever and cock the shutter again it fires. And it fires sometimes while advancing, sometimes when pressing the release button afterwards. Shorting the ground screw with the shutter release magnet terminals, it fires evertime! Any ideas on how to solve this? It would be awesome if I could give life to at least one of the two cameras.
This might sound overly simple, but when it fires erratically it is possible that you have a battery that is on the edge of the needed voltage and nearly exhausted. When it releases on advance the latching/release magnet is not holding.
I am so glad I came across your video for the AE-1!!! I have the same problem with the winder not advancing. Although you gave me the fix for it, i'm going to take it to my local camera shop and have them repair it, my soldering skills aren't that great.
Thank you for your interest in FOC. Hopefully your camera will be back to good working order soon.
... Can't thank you enough!!!! Love AE1Prog to bits, it's my ''soul cam'' :D the thought that it would have to retire was just, gah, sad and utterly frustrating.
Luckily, repair did the trick and now ALL releases are a GO! - Thank you immensely for this tutorial!
Good to hear of your successful repair.
cleaner and fixed my camera without removing the plastic cover completely. thank you!!!!
Here's an extra comment to try to boost engagement and force the algorithm to show you some love.
Thanks for the valuable information!!
You helped me get my old camera going again!!!!!! ❤️ released the magnet and viola!
Minor point of difference - I have a Canon A1, and the plastic sleeve covering the magnet mechanism couldn't really be 'lifted' like you did in your video because it was sealed at the side too. I had to very gently slide it off (towards the tripod mount hole, away from the electromagnet), prising it using a small flat screwdriver. Replacing it wasn't easy...!
Huge thanks though, this video was invaluable. After cleaning the contacts with isopropyl alcohol my camera's fixed! 🙏
Yes the removal of the plastic magnet cover is probably the trickiest step of the process. Additional soaking of the glue with the alcohol sometimes helps. In some cases it seems that the best solution is to carefully cut the plastic cover so that it can be removed in two parts or left in place and folded back.
Thanks. Worked like a charm. The pivot on the release was just sticky. A little coaxing and a spot of oil had it working in a few minutes on my AT-1.
+wordzenpix Very good.
This totally worked! Easy to follow and saved me a trip and $ getting it fixed. I'm no expert but the easy to follow instructions got my camera working again! Yay :)
Very good to hear of your success.
Chelsea Putnam congrats
Thanks so much for this video! While this wasn't my exact problem, it gave me enough insight to understand it was the second electromagnet for the release of the shutter from the up position that was causing problems. A little cleaning with alcohol swab and it's working great.
Excellent to hear.
Thanks so much! I just fixed my Canon AE-1 Program using this video. The plastic cover ended jamming the shutter cock that caused the shutter button not to fire.
Good to hear of your success.
Thanks so much this sorted me out! Bit of alcohol did the trick - realised I have some corrosion on the electro magnets so will need to replace them soon too. Thanks for your help
Thanx a lot! You bring my Canon to life again ☺️
Thank you for the video! My canon A-1 needs the shutter release magnet replaced, however I can only find single coil magnets. Would they be compatible?
Wow you saved my butt on this one I spent all day hunting down film and a battery only for it to not advance but I fixed it up nice thanks to you 👍
Great video, great suggestion, and now my camera works great! Thanks for the help. You are appreciated
You are welcome. Keep'em going.
Thanks for the video, literally saved my AE-1 P with jammed shutter.
Good to hear of your successful repair.
Great, thank you for the advice I got my A-1 working. It saved me alot of time of having to try and guess how to resolve the issue!
Excellent!
you think this would help me on my AV-1 too? Don't know if its the magnet thats broken though
Hi, very helpful video! I have a question though. My AE-1's mirror does move when I push the shutter release button, just the curtain doesn't. The curtain only moves when I set the shutter speed to anything slower than 1/8 (which is pretty useless).
The curtain does not move when I short the ground screw (mirror does move). So when we talk about the shutter releasing, does this imply both the mirror and the curtain moving or just one of them?
+Tim Foerster The shutter release sequence is.... the mirror rises up against the viewfinder, the first curtain travels across the focal plane, followed by the second curtain. Sometimes the tungsten ASA resistor base connecting wire can jump the pulleys or break (spider wire fishing line works as a subsitute) causing an entanglement that can effect the contacts of the resistor base and cause shutter release issues as you describe. If you remove the top cover and discover the wire to be displaced you can check out the end of the Fix Old Camera video "Canon AE-1 Jammed Wind Lever" for the proper routeing of this linkage wire.
Hi, thank you very much for your videos! They are very helpful.
I would like to ask you a question about my Canon AV-1.
Everything is ok with this camera but I have to remove the battery every time I want to "turn it off". Otherwise the camera would drain completely the battery in a few hours.
If I look in the viewfinder I always see the shutter speed indicator moving. I think it should move only pressing the shutter button.
Have you any idea about the cause of this problem?
Thank you very much
You are correct the meter should only turn on with light pressure to the shutter release button. A very strong possibility the contacts under the shutter button are causing the issue.
thank you for sharing this video but I want to ask if i short the ground screw to the shutter release magnet terminals and it released,what could the problem is or what should I do next
Wonderful. Fixed one. Thank you.
I had no experience and this surprisingly worked
Excellent!
Thanks! This helped me out today.
If the meter indication is normal on the AE-1 and the auto aperture always stops down than the magnet (MG-1) that is located on the side of the mirror box could be the cause. Often cleaning the locking surface and pivots of this magnet will correct this issue. If the auto aperture always stays open than MG-1 could be defective. If MG-1 checks out OK than bigger issues. A video showing how to remove the mirror box to access MG-1 would be fairly complex and involve soldering and handling the printed flexible circuits. Such a video could possible be produced in the future. Thank you so very much for your interest and video suggestion.
First off make sure your replacement battery is delivery 6 volts. You might have to remove the top cover and check the contact blades of the switch configuration that is located under the release button. It is possible that could be the source of the issue. However, often when the meter latches on after fully depressing the release button it is an indication that there is a problem in or around the release magnet.
Very good to hear. It seems you fixed it without any applicable comments from FOC. Your persistence and patience paid off.
In order to check the functionality of a Canon AE-1 a good 6 volt battery must be installed. The camera is completely battery depended for release and shutter function.
Thank you very much for this video.
After cleaning the magnet with alcohol my A1 works for some time and gets stuck again - any idea on that?
Is there a place to order these magnets?
Typically the magnet works or it does not work. Rarely are they intermittent. Might be the release capacitor {he blue(typically) capacitor living next to the release magnet} It sounds simply, but often times an erratic release can be caused by a battery that is on the edge of expiration. Check your battery to confirm that it is delivering 6 volts of available power before proceeding with further troubleshooting of the magnet
Hi, and thank you!!
which spare battery?
Where do I get it from?
Hey! Your videos ave been super helpful! So thanks for that. I'm fiddling with a mint condition Black Ae-1 That's only firing on what sounds like 1/1000th no matter what shutter speed is selected. Shutter button contacts need to be cleaned maybe?
i know its been a while since you've posted this comment, but were you able to fix it? i have a similar problem but cant find a specific video about it ^^
Hi, I hope you can help out here.
I have a Canon AT1 which I absolutely love to use, it was in exceptionally clean condition but recently due to my own clumsiness was dropped, the top pentaprism housing bore the brunt with some dents.
I now have this release problem, I can manually flick the release arm and can also bridge the contacts to release the arm as per this video but the shutter button does nothing at all, it presses in fully and the batteries (x2) I tried are both good but the shutter won't fire or the self timer light and beep when the button or cable release is used.
I'm assuming i've damaged something related to the shutter button under the top plate but before I dig in there i'd love your expert opinion on the possible cause and (hopefully), repair.
Regards, Mike
The top cover is plastic and there might have been enough flex from the impact that it damaged the electronics at the peak of the prism. The sharp edge of the prism might have created a crack in the flex or cut wire with out actually causing separation. It might require careful magnified inspection to discover the break or breaks. Also check the contact blades of the release switch for misalignment.
Fix Old Cameras Thankyou very much, I'll get the top plate off and take look alittle later, I hope I'll be able to get it running again.
Hello and thanks for posting this very detailed video. I bought a Canon AE-1 Program and I'm not getting any response after I insert a fresh battery... It's like it doesn't have a battery at all: the battery test button doesn't do anything (no beeps), the shutter is stuck and so is and the advance lever... Just wondering where should I start?? Any advice would be greatly appreciated.
I'm having this issue too, did you find any fix for it?
Thank you so much to share it, was really useful!
Thank you for your interest in FOC.
I was given an AE-1 Program and it's presently on Ebay. Thanks to a potential buyer's question, I've discovered that the shutter button doesn't work at all nor does the film advance lever. There is no battery installed and I don't have one to test with. Is the lack of a battery the problem with the frozen shutter button and film advance lever?
Thank you for your video! If I short the ground screw with the magnet it only releases when I press the shutter button at the same time. Therefore it seems like I could just permanently short the magnet but I'm wondering if you know a proper workaround?
If you permanently short the contact to ground it will probably run down the battery. Make sure the ground screw is tight and the contact clean. Otherwise, there could be a break in the flex leading to the upper circuits or the shutter release switch could have poor contact or bad solder connections. Finally the IC that lives on the shutter release side of the prism could be defective.
do you have any video on how to replace the focusing screen on a canon ae1? the program is easy but the regular ae-1 doesn't seem too easy.if you dont have a video could you let me know where i can find any info. thank you.
The focusing screen of the AE-1 can only be accessed by removing the prism. It is very involved to access the focusing screen of the AE-1. The prism is sealed and buried underneath the upper flex circuit. Probably would classify it as a difficult repair.
Hi, I've had a issue come up that I can't seem to find an answer for. Every time I try to take a photo the mirror gets stuck in the up position and makes an odd click noise as well as the viewfinder fading to black. After this the mirror will very slowly return half way to wear it should be. Have you had this issue before or is it worth taking it to a repair shop?
Tkx very much for the video and your help.
Today I got an issue with my A-1 while testing it since my last use 4 months ago.
It was working fine and I've tested manually all the speeds.
Suddenly, the shutter wan't release. I tried many times but nothing.
I put another battery, same result.
No display on the viewfinder.
I opened bottom cover to check the shutter magnet, it is releasing when I free it by small screwdriver. I clean it with swop and isopropyl alcohol.
I've advanced one more time the lever and fire, same issue : doesn't release.
I short-circuit both magnet connections with the earth screw one at a time to test if the shutter release but no improvement.
Do you think that I have to replace the magnet by new one ?
Thank you in advance.
From your description of events, suspicious that battery voltage might not be 6 volts on your replacement battery - or the magnet is bad.
Hi, on my AE-1the set of magnets covered in this video are work, but the other magnet (on the other side), which controls the shutter speed isn't working. how would I go about replacing the other side?
Hello. I have a problem with my ae1. When I let it rest, the first shots (2, 3 or 4) are shot slowly, or the curtain takes time to open, the diaphragm remaining open until the curtain opens and closes. I have tried cleaning the electromagnets but it still happens. Could you recommend something to me? The next thing I'm going to do is pour lubricant through the screw on the right side of the mirror. Thank you very much in advance
You saved my camera. Thanks.
Good to hear of your success. Thank you for your comments and interest in FOC.
nice tutorial.very helpful
Thank you. Glad to hear that the video was helpful.
Hi I have an AE-1 I just purchased that was supposed to be working perfectly. After a few runs of the lever and releasing the shutter, the mirror will hang up and the shutter stays open. If I press the battery check button, it will release the mirror. I found your video, and by grounding the screw the shutter will release. So, if it's not the magnet what could the problem be? I've got fresh batteries. I don't have a meter to test the voltage. But the in camera one says they're good. I know it's not great, but with two new batteries it has the same outcome. Self timer also work. Wondering if you can help me out.
Thank you.
This is my exact issue as well, please share if you solve it
I have this exact issue… It seems like every time I find someone having the exact same issue as me there are no reply’s explaining what it could be!
Thanks to your info I could see that the magnet was not defective on my AE-1 and I'm not sure what I did but it seems fixed now. It fires every time without getting stuck or immediately taking a photo after winding the lever.
+RF BRCK
Maybe there was a light film on the magnet linkage that was cleared by your investigation... or maybe just a little serendipity. Either way.... excellent to hear.
Thank you for the video. I've fixed one Canon AE-1 with this tutorial, however, I've got one Canon AE-1 (not Program) that releases the magnet when you short it but won't fire the shutter when pressing the shutter button. I have a new battery installed and the light meter works as it should. If I release the magnet manually while pressing the shutter button the camera fires at the shutter speed that it's set to(1 second opens the curtain and after one second it closes). What else can I check for? Thank you.
Same thing here
same
Do you have any information with the AV 1 I had to consult this AE1 repair in hopes of diagnosing my AV1 problem. My AV1 is unable to release the shutter button can activate the meter but not the shutter release. I will try to short it or apply 6v directly into the magnet to see if the solenoid is working. If you have more info about the AV1 can you please help? Thank you
Presently there are no FOC videos feature the Canon AV-1 specifically. Thank you for your comment.
Hello good morning ... I have the same problem. I already bought the magnet and I'm waiting for it to arrive. but in my case the leds that appear inside the camera do not light up. Will the problem be solved with the new magnet?
I have to manually release the magnet by forcing the armature, shorting the solder points on the ground pin does not work. However, before replacing the magnet, I have a query. When I manually release the magnet, the shutter curtain and mirror do not move corresponding to the shutter speed. The mirror flaps up and down idly, and I’m not sure if the shutter curtain opens at all. Is this normal and would this correct itself if I replaced the magnet, or does this mean that there may be more severe problems with the camera? I’ve cleaned the contacts on the curtain magnet and this still occurs. Thanks anyone!
Hi, would it be the same process if my camera was firing whenever I pulled the lever?
Yes, the surface of the permanent magnet of the release magnet might need to be cleaned or the holding ability of the magnet might be suspect.
My ae 1 program does not release the shutter sometimes and also the shutter is also delay. For example when I using B shutter, after I release the shutter button it needs to wait a few millisecond. This issue appears in all shutter speed and my film was all over exposed. How can I solve this problem?
Thank god I found this channel ... first of all I am sorry for my English, I am from Uruguay and I really like what you teach and share .
Now I have an AE 1 that has a problem with the meter, every time I press the shooter, both red lights turn on .. like if there wasn't enough light .. but the thing is that the arrow moves up and down, so there must be some power .. It is not a battery problem I guess !! I would appreciate if could help me somehow !!
I also wanted to ask you if you have anything about how to set a 35 - 70 nikkor zoom lens apart.... thanks .. thanks .. thanks !!
Giusepe mayard It is possible that the tungsten linkage wire that connects the ASA dial to the ASA resistor has jumped a pulley and is caught under the wiper dial. Familiarize yourself with this area of your camera by watching the Fix Old Cameras videos on the AE-1 - Top Cover Removal and the AE-1 Jammed Wind Lever. If the ASA tungsten linkage wire is where it should be than the cause of the cameras malfunction is probably component related.
I haven't seen my issue mentioned in the comments, it's on my first camera, an A-1 I just bought.
My battery has the proper voltage. The shutter releases the first time after turning it on, but when I cock the shutter again, the button doesn't work (Does not meter of fire). It only works again when I press the battery checker button or if I turn it off and on again.
I thought it had to do with it not preparing properly for the next shot and the battery checker button canceling something about the previous one, but if I short the contacts, it releases.
I'm out of ideas and I can''t find much information, any help would be greatly appreciated.
Join the Learn Camera Repair group on Facebook. Someone there will be able to help you!
Hello, i hope you can help me.
if i press the trigger button half -light meter starts and works.
But my A1 dosnt shoot if i press the shutter button. (good Batterie)
if i short like 01:27 the magnet close and the shutter shoot.
so it looks like the trigger button (on the top) dosent work for release. How i can fix it?
Great video, i have an issue with an A1 the advance crank lever is stuck and que shutter is in middle position, I tried this solution but the crank do not move, can you help me?
If the shutter is stuck in mid advance or release than there is an issue in the gear train or levers that control the shutter function.
Hello, my Canon A1's film advance level is not wotking in a smoothly mood, is lubricate necessary? Thx
My AE-1 does not fire consistently after releasing the shutter, as in sometimes I will have a run of 5 successful shoots, then nothing. The battery is new, and I have used the battery check on the camera which has shown it has charge so it is not that, however the meter itself doesn't always work either, so I'm guessing it's a loose electrical connection somewhere. Do you happen to have a fix for this?
Ted Gravestock If you are using an alkaline battery switch to a silver or lithium battery. If you are using the proper battery you might check the ground screws by the release magnet and by the left of the eyepiece ( you will have to remove the top cover to access this ground screw).
So I followed through all of the steps up until replacing the magnet. If I manually reset the shutter and cock it it will be able to fire once or twice and then right back to the same situation of not disengaging the magnet. Do you still think it’s worth replacing the release magnet? Or is it some other wild issue that’s not worth it
The magnet sounds like it is good. The AE-1 is a battery hog... as they age they seem to be even more demanding. Make sure your battery is delivering a full six volts and not dropping off after a couple of shots. Check for a break in the connecting flex circuit. Check for a solid connection on the lower flex ground screw. From an early post... If the magnet energizes then the issue is in the release circuit or a loose ground screw. Check the ground screws by the release magnet and by the left of the eyepiece ( you will have to remove the top cover to access this ground screw). The additional circuit trouble shooting is much more involved... Probably not going to help much, but, make sure you are getting battery + voltage at the lead on the (blue) release capacitor closest to the release magnet. This capacitor can also be swapped out from a donor camera. Make sure you have battery + voltage at the lead of the release magnet closest to the release capacitor. If good, check coil continuity of the magnet. If no continuity, remelt solder at the test points. Also top cover can be removed and all the switches on the release side of the camera should be checked. There could be an open in the flex circuit or connections that will need to be traced. Then there is the possibility that all is for not as you could have a defective IC, the one that lives on the release button side of the prism flex. Also, if you are using an alkaline battery you might switch to a silver or lithium.
HI! I have an AE-1 with unstable shutter release. The button works from time to time. I thought it could be a magnet issue but when a ground magnet contacts the shutter fires instantly. Could you please give me some advice what may cause such behaviour.
With erratic release, the first suspect would be a weak battery. Otherwise it is generally a failure of the release electronics.
Have a similar issue... have gone through the cleaning process as described and shorting the release magnet terminals releases fine but pressing the shutter doesn't still work... also noticed that it doesn't trigger the self timer so assume its related to the shutter switch? if so do you have a video for that?
If the magnet energizes then the issue is in the release circuit or a
loose ground screw. Check the ground screws by the release magnet and by
the left of the eyepiece ( you will have to remove the top cover to
access this ground screw). The additional circuit trouble shooting is
much more involved. Probably not going to help much, but, make sure you are getting
battery + voltage at the lead on the (blue) release capacitor closest to
the release magnet. Make sure you have battery + voltage at the lead of
the release magnet closest to the release capacitor. If good, check coil
continuity of the magnet. If no continuity, remelt solder at the test
points. Also top cover can be removed and all the switches on the
release side of the camera should be checked. There could be an open in
the flex circuit or connections that will need to be traced. Then there
is the possibility that all is for not as you could have a defective IC,
the one that lives on the release button side of the prism flex. Also,
if you are using an alkaline battery you might switch to a silver or
lithium that is delivering the full 6 volts. Could be the magnet release capacitor.
It is located next to the release magnet and is typical blue. It will be difficult to measure static
voltage to determine condition of the release capacitor. The switch
closed by the release button sets a chain of electronic events in
motion.When things have progressed enough
to suit the CPU(central processing unit) inside one of the three main IC
circuits, pin two of PX-2 IC connected to pin nineteen of PX-3 IC goes
low and trips the shutter timing sequence. The connection is also taken
thru the flex circuit at the coil of the release magnet to enable it to
conduct. This capacitor then discharges through the coil of the magnet.
You might try swapping out the capacitor from another AE-1 camera
donor.
Thanks... I'll give that a go... I do have a donor camera to gets parts off if need be :)
Thank you for the reply... you mentioning the battery made me get my meter out to check it... only reason I hadn't thought of this was because the battery was literally brand new... I had gotten half a dozen shots off before the problem manifested... battery check looked ok and it would sporadically fire the shutter..
Check the voltage and it was 4.6volts!!... check the other battery in the pack and this was 6.4 volts... replaced the battery and bingo... working as it should!!!... DOH!
I have ordered a lithium battery now to try... can't believe the battery was that dead that quickly... must have been a duff one...
It was an Energizer A544 Alkaline battery... will try the lithium and hopefully it will last a bit longer...
Thanks again... this videos are great to watch :)
plastic cover does not come away! i just broke the mechanism trying to get it out.
So if the issue isn’t caused by a defective magnet, what else could the problem be caused by? My canon releases when I short it and it’ll work *occasionally* but it’ll be stuck in the cocked position again.
I used this to check an AE-1 of mine. The battery is good so is the magnet. My initial issue is that when I look through the viewfinder the needle for the light meter is at the top. I press the shutter button and the light meter will go all the way down to the bottom. I have a flashing warning light in the viewfinder. I can cock the shutter, but I have to take the bottom plate off and disengage the magnet. I am suspecting that a resistor has gone bad in the area of the shutter button under the top plate.
Those are the classic symptoms of a Canon AE-1 with the ASA link wire issue. The Fix Old Cameras video Canon AE-1 ASA Linkage Wire Repair addresses this problem for a possible solution. Find the video in the FOC Canon playlist.
Is the process the same or similar for a rear curtain release magnet?
+David Hancock The smaller magnet visible towards the center of the bottom of the camera holds the second curtain open for exposure time. If the magnet is not holding the second curtain will follow the first curtain across the focal plane. Often cleaning the surface of the magnet and magnet latch will correct such an issue.
Fix Old Cameras I tried cleaning the surface with 91% alcohol and acetone. So far no luck, What the camera's doing is leaving the shutter open until I remove the battery. The front curtain magnet behaves like the magnet in a working AE-1 I compared it to. I'll give both magnets a cleaning again tonight and see if that helps.
+David Hancock Sometimes when the AE-1 is acting as you describe, the tungsten ASA link wire has come off the guide pulleys or broken. Remove the top cover and inspect for such a malfunction. If you find the link wire to be broken .005 Kevlar fishing line is a suitable substitute.The FOC video Canon AE-1 Jammed Wind Lever briefly covers the routing of the link wire.
+David Hancock Before removing the top cover if you want to check for the unlikely possibility of a mechanical issue, desolder the black wire from the holding magnet. If it still hangs open it is a mechanical issue.
I just bought this type of camera from a antique store had to replace the battery and everything seems good but I have one problem the shutter button is stuck (not physically) i can move the switch in the three different spots but 2/3 its always in the self timer mode any suggestions?
+nick minella It is possibly an issue with the self-timer switch contacts beneath the three position S/A/L switch of the top cover. Remove the top cover and inspect the switch base and contacts.
this is probably a stupid question, but should I remove my partially used roll of film before I try to fix the camera? I want to salvage the 20-ish shots I managed to get.
Probably a good idea to remove the film, so that you can test run the camera.
Hi, i've got a problem with my AE1, when I want to advance the film, at the end of the process the curtain opens.. battery is new, shutter release works just fine.. can you help me ?
Trying cleaning the surface of the latch plate and holding permanent magnet of the shutter release magnet unit.
Hi, I have a quick question you maybe be able to help me with. One of my A1 has a wire broken, on the A1 it is white but on this video it is red, it runs from one side of the camera to the other. My question is can you tell me what weight or how I would identify the wire when trying to source a piece to replace my broken one?
Using a braided wire of similar size is acceptable, exact size is not critical. The braided needs to be small enough that it can be accurately soldered. However do not try to use solid core wire.
@@FixOldCameras Thank you so much for taking the time to reply, I appreciate it. And you may well have help get a really nice condition A1 back on the road, fingers crossed.
I'm having a similar problem with the shutter: when pressing the shutter button the camera doesn't fire. When loading the camera with the lever, the camera shoots a picture even before the lever is completely tightened. So the shutter button doesn't work but the camera does take a picture during the loading process via the lever. Any ideas?
+Daan De Ridder
Probably the permanent magnet of the release magnet is not holding the latch lever due to weakness or grime.
I've got an ae1 that won't take pictures when it's cold. Is this a common problem? Any ideas on how to fix it?
@@coltonholiday4872 try a new battery, cold lowers voltage
Hi, my AE-1 program will not release the magnet when the shutter button is depressed. If I remove the bottom cover and tap the switch it releases and makes all the sounds it should. When I advance the film, the magnet is stuck again. (Where can one purchase a replacement magnet?) Also, I put a brand new battery in it before all of this. When the shutter button is pressed it no longer shows anything inside. No light readings, no aperture suggestions, etc. The camera worked great the last time I used it, but that has been years ago. Is it possible that there is something with the shutter button that is out of place since it doesn't display anything and doesn't release the magnet?
After resetting the main switch and the display turns off and stays off when the shutter button is pressed a full stroke, then it is possible that the release magnet is bad, or the capacitor that is located next to the magnet or final and complete failure of the circuit (IC-1).
Hello, I have almost the same problem than xRONMOWERx, but with a canon a1. Camera in almost perfect shape, bought 2 months ago from Japan (300$), only 2 films shot, amazing pictures. A few days ago I tried to switch it on- after one week it was off-, but nothing, it seemed to be dead! I changed the battery with a brand new one, but still nothing, no information in the viewfinder and no LED blinking, when testing the battery status.
Then by opening the bottom plate I saw that the magnet was stuck. I could be able to manually tap the switch to manually release the shutter, but when advancing the film it got stuck again. And apparently no current was flowing in the camera's circuit, as it was like switched off.
Now, I ordered a new electromagnet on the web, but: what shall I do if it was not the magnet failing? How to check the circuit and try to understand which component is actually failing? Could I use a multimeter and close the circuit where the magnets pins are? Or is that dangerous for the circuit itself, as I introduce a current that is bigger than the expected one? Which scenarios should I expect?
Thank you so much for your help!
Similar but different issue with my AE-1 shutter. The shutter fires, but doesn't return or 'close' by itself (2nd shutter is hanging open) Cleaned the magnet, and no change. BUT... if I cock the shutter and MANUALLY release the shutter, it cycles fine. If I press the shutter button, the magnet (shutter) releases, but the 2nd curtain doesn't close. (Battery is new and works in another AE-1) The smaller magnet (? - opposite side from the main magnet, near the wind mechanism) doesn't release. Giving it a gentle push causes it to open & recycle just fine. Again, if I wind the shutter and trip it MANUALLY, the shutter cycles fine. But using the shutter button, it only opens the shutter (main magnet is OK) but the 2nd curtain hangs and the shutter curtain remains open. Possibly the most telling 'clue' - if I wind the shutter and MANUALLY ground the magnet, the shutter cycles fine. Any thoughts/ideas would be much appreciated!
+Tony Muller The tungsten linkage cord that links the ASA shutter dial to the resistor base might possible be out of position and causing the issue. Watch the FOC video Canon AE-1 Jammed Wind Lever for some insight on how to properly route the link wire. If the link wire checks out properly, then most likely you might have a purely electronic issue.
What if you've cleaned the magnetic thoroughly and it still trips when you press on the ground screw and release contacts, but it still doesn't fire?
My camera fires sometimes. Are these things I need to check if that's the case.
Persistence and patience. Keep'em going.
So the shutter release on my AE-1 works, but only if pressed fast & hard. Otherwise it will not go off, just act as if it were half depressed. Any idea why this could be?
Mmmm... not sure. Might be that the release button switch contacts are not making positive connection.
I tested the release magnet and it works fine. When I hit the shutter button the mirror goes up but the shutter curtains are not opening any idea on what to do?
***** The shutter holding magnet (the smaller magnet visible with the bottom cover removed) could be bad or misaligned, could have an open coil, or could have a dirty latching surface. If the magnet is not getting power than it could be an open or short in the flex ribbon circuit, a bad timing capacitor, bad contact on the timing switch or worst of all a defective IC (PX-3).
Can I use Abu-Garcia Reel Oil for fishing gears for this repair?
It should work fine, if it has a very light viscosity, similar to the oil used.
I touched the contact points and the magnet let go. The shitter button still isn't letting me take photos. So do I resolder the points? I don't have any issues with the lever advancing. Just the shutter button not doing anything when I depress it.
Hi there,
I have a similar problem... I can shoot the picture, but the mirror stays up after pressing the shutter. Will cleaning the battery components be enough? Thanks in advance!
It is possible that the mirror escapement is so dry it is causing the mirror to hang up. If so, this might help - th-cam.com/video/4YMpMHwMtX4/w-d-xo.html
Or it is possible the tungsten ASA cable is off its pulleys or broken. Is the meter pegging? If so you might check this video for help.
th-cam.com/video/hJUidgM6LoI/w-d-xo.html
wher do i get a replacment magnet? thanks in advance.
Salvage a release magnet from an AE-1 that has irreparable electronic issues. They can also occasional be found on internet auction sites. The magnet can be tested by arming the magnet than apping camera battery voltage across the circuit connection posts of the magnet.
Hi
I bought a AE1 Program today. It seems to be in good condition....but it has an issue, and I hope you can help me.
The mirror is in the Up Possision, the curtain ist closed, shutter wouldn't fire, and I can't wind it...
It doesn't have a battery in it...hope the mirror will come down when I put one in. Could this be the problem? Will the Shutter only release/fire with a battery?
It is battery depended for release and the battery needs to be a full 6 volts below 5.8 and it will not fire consistently or not at all. However, the mirror should not be stuck in the up position.
Thanks for the update👌
I will buy a new battery and try her out...i do hope all is good
UPDATE
I just put in a new battery, and she works!!! Not perfekt, she has the typical Canon Asthma sound of the shutter and the speed is somewhat slow, but I guess those two things go together
What is the best place to find Canon AE-1 parts?
Donor cameras, although there seem to be a few aftermarket parts showing up... maybe search some auction sites for individual parts.
With my AE1, I have press the shutter button and the meter needle plummits to the bottom. I've changed aperture and shutter speed and battery but it still does the same thing. Any ideas?
Would suspect a broken ASA link wire.
A place to start. th-cam.com/video/hJUidgM6LoI/w-d-xo.html
I have an issue where the shutter speed doesn't change no matter what the dial is set too. Any thoughts on fixes for this? Thanks
If the shutter runs through without opening... check the shutter holding magnet (smaller magnet visible with the bottom cover removed). Check for proper alignment, or dirty latching surface or the magnet. No power to the magnet coil or an open coil could also cause such an issue.
I'm able to get the magnet to release and the shutter fires when shorting the ground screw to one half of the solder connection on the flex circuit (as in 1:33 in the video) but not on the other half (1:38). Should the magnet release when shorting to either solder joint?
If the magnet release as demonstrated in the video, then the indications are that the magnet is functioning and the mechanics of the mirror / shutter are not the source of the release issue. You can try cleaning the release button switch contacts configuration, but there is a likely possibility the release capacitor that lives by the magnet has died. If not the capacitor than other circuit issues such as an open flex or failed IC.
@@FixOldCameras Thanks for your reply. I removed the camera top cover and inspected the release button contacts. I didn't get around to cleaning them yet but tried the following. It appears there are three "stacked" contacts. When I depress the top contact so it touches the middle contact (assume that's what happens when you depress the release button "half way"), the exposure meter operates as intended. When I press the top contact further so that all three contacts are touching, nothing happens. If I bypass the top contact and press down on the middle contact so it touches the bottom contact, the shutter fires. Have tried this multiple times and get the same result. Any suggestions as to what's happening here?
@@matthewtilling3784 Hmmm. Might be getting a bit tricky to troubleshoot. If the meter does not stay on when the release button is fully pushed then released, recheck the wire connections to the switches and the contact surfaces. If the meter stays on after release of the buttons then it is likely a release circuit issue. One course... A) Desolder the purple wire from the diode behind the right side IC (PX2). If the problem stops, the preview switch is leaking. B) Desolder the cathode (banded) end of the diode. It the meter turns off, the problem is possibly the first blade of the switch stack (SW-1). If the meter stays on you are screwed as the IC is likely defective. Other then checking ground screws and the flex for breaks, troubleshooting much beyond this point will require a schematic and logic probe.
hi! I have an odd problem with my Canon AE-1 program camera that I bought off Ebay. The description said that the camera was fully functional, so I can get a refund if this won't get resolved. Anyway, the problem is kind of difficult to describe. The camera won't change the shutter speed no matter what. I checked the battery, inserted a new film and checked everything that I could and knew how to. It appears as if the shutter speed dial doesn't send a signal to the shutter to change the speed. I can set the shutter speed to 1/1000 or 1/60 or 1, but the shutter won't release for at least 1,5 seconds. If this has made any sense, can you advise me in any way what more can I do or is it irreperable? Thanks in advance
Could be the holding magnet (MG3) is sticking or other mechanical problems, could be a control process IC failure, could shutter closing switch (SW4) is shorted or not opening capacitor (C3) is shorted. Often when the speeds are all slow the delay set by the shutter speed variable resistor (VR-2) and (C-3) may be long. You need to make sure SW-4 opens with the first curtain and there are no leaks to ground with (SW-4) open. You will also need to check connections from the (VR-2) and B+. None of these checks or repairs are simple except cleaning the holding surface of the (MG3) magnet.
Fix Old Cameras thank you so much for the thorough answer! I'll try and check whatever I'm confident in doing and hope to find a solution soon.
Some time ago I pulled the wind lever many times and pressed the shutter like if I was taking a picture. Now the wind lever is stucked. I did this because I thought this was the problem. The camera seems to work fine but the lever is still stuck. The battery is new. What can I do?
Hi, I've got a similar problem I think, the lever won't advance the film but the numbers wont rewind... Dont want to force anything but stuck for things to do!
If the counter numbers do not reset when the film door is open then it is usually caused by the counter dial return spring or the counter dial engagement lever.
i havea problem withmy AE. my shutter cannot release, theres no problem with the battery. but when i short the ground screw to the magnet release terminal, the shutter is released. ive tighten the screw up but it still doesnt want to release the shutter button. but again when i short the ground screw, the shutter release. but everytime the shutter is released using this method, the speed is always the same wether i set it on 1/1000 or even 2scnds. could you please help me?
Probably not going to help much, but, make sure you are getting battery + voltage at the lead on the (blue) release capacitor closest to the release magnet. Make sure you have battery + voltage at the lead of the release magnet closest to the release capacitor. If good, check coil continuity of the magnet. If no continuity, remelt solder at the test points. Also top cover can be removed and all the switches on the release side of the camera should be checked. There could be an open in the flex circuit or connections that will need to be traced. Then there is the possibility that all is for not as you could have a defective IC, the one that lives on the release button side of the prism flex.
just bought an A1 but it seem that the aperture stuck at 1.8. the lens are working fine. can u help me.
If the aperture stays open and the display is normal (agrees with the dial indication in aperture priority mode and all other functions are OK, then you will find the problem to be with the aperture control magnet (MG-1) or the CPU-IC or the OSC/INT-IC. If MG-1 is defective it is practical to replace, but requires removal of the mirror box to access. Defective IC are generally not practical to replace. Check the condition of the solder connection around the IC placements. You can also check the connections of the red wire that carries the battery voltage to the attachment flex circuit for MG-1. The issue can sometimes be repaired without pulling the mirror box, if the MG-1 is not latching because of dirt, oil or a mechanical problem (such as AE unit that has jammed gears or levers). The aperture magnet can be partially accessed by removing the release magnet assembly unit.
I’ve watched videos but still I can’t open the part to put the films, does it require too much strength? I bought a camera that seems to be veeery old and I don’t know what to do because I’m new to this. Thank you
The door latch could be stuck you should be able to open the film door by gently pulling up on the rewind knob. If that action does not open the door than the latch can be accessed by remove the rewind side leatherette so that the door latch cover plate can be removed.
Fix Old Cameras Thank you for replying!
I have an A-1 that works well in Av mode however the mirror gets stuck up in all other modes. I lubricated the gears and the squeak resolved and it otherwise works well. Does this sound electrical or mechanical?Any help appreciated.
If the mirror release when the battery is removed than that would indicate electronic issues.
@@FixOldCameras Yes , Thank you ! thats exactly what happens. The mirror releases as soon as I remove battery . Is this sort of issue worth fixing. Is it a capacitor issue. I have several "for parts " A-1s
@@yugars22 Well that about tears it. You might check ground connections and switch contacts, but to troubleshoot and locate electronic issues at the very least you will need a logic probe and the schematic. Maybe one of your "for parts" cameras have a mechanical issue that you can use the camera in question as the parts donor.
Thank you very much for your help and great videos
my ae-1 shutter curtain wont close after i press the shutter button. is this method applicable for my camera problem?
so after replacing the camera's battery with a new 4lr44 6v battery. my shutter button now can work, but oddly after it fire, the shutter curtain won't close :( (the shutter speed is not at B) i see this by firing the shutter button while let the back of the camera remain open (i did not load any film) and when i press the battery check button, the black shutter curtain close. obviously i thought there is something wrong with this camera. is this have something to do with release magnet? please help.
+Josh Smith
The second shutter curtain hanging open is not caused by a release magnet malfunction. It could be caused by the tungsten meter link wire being dislodged and getting caught up under the wiper contacts of the meter resistor base. You might refer to the FOC videos, Canon AE-1-Top Cover Removal and Canon AE1-Jammed wind lever for some insight into where the link wire is located. There are also other malfunctions that can cause the issue that your camera is demonstrating, but the one described is common and easier to address.
Excellent to hear of your successful repair.
I have A question. my AE-1 has a good battery but in won't fire the shutter. when i push my shutter button half, i get the readings. I cleaned all my contacts. but when I crank the leaver again so the shutter is 'armed' it keeps that way even when i short it like you showed it. Do I have a bad magnet?
however it fires when I move a strong magnet over the case.. probably shouldn't have done that...
If the release magnet does not release when shorted as demonstrated with a good battery in the camera the electro magnet is confirmed defective. The opposing magnetic poles probably caused the permanent holding magnet of the release magnet to release when exposed to the external magnet. Interesting results that probably did no harm.
My magnet is bad but also the shutter will not wind and the mirror sticks in the up position when the magnet release is engaged by jumping the contact point. What does this mean?
The issues listed in combination with the bad magnet might make the camera in question a candidate for the role of a parts camera. The camera is probably going to need some significant work to restore it to good working order. Sorry that this post does not offer any simple solutions. Thank you for your interest in Fix Old Cameras
Thank You!!!
You are welcome and thank you for your interest in Fix Old Cameras.