| Author | Message | ||
     Glenn Middleton Rating: N/A |
Vasko, So you are now indicating that your 1/60 was a guess based on the sound alone and not by viewing the shutter blinds through back of camera. As you have electrical background, you should be able to check the resistance of the second curtain coil very easily. As Doug Wilson indicates if the coil on magnet goes open circuit all speeds will sound the same, as both curtains release simultaneously. Do check if the shutter is opening though, the power distribution from battery to circuit 'boards' is different in AE-1 to other A Series. AE-1 Program manual is no help in removing the top plate and resetting the exposure meter linkage etc. It will help you locate the position of the magnet coils as basic shutter is the same across the A series, although the Program makes use of Delrin for shutter gearing. As for part interchange; basic magnet/coils are same but early AE-1 do not have or have different protective covers. There are also various issues of circuits. In practise this means if you are replacing a magnet/coil that is mounted on a rigid circuit board and you replace whole assembly - check the values of the individual components on the boards, otherwise just swap the magnetic 'switch'. If you are used to working on/soldering modern electronic devices and take care, you will solve the problem. However I strongly advice you to get a copy of the AE-1 repair manual issued by the American National Camera organisation. This manual is based on their Area Repair Seminars/Courses and gives detailed instructions. Anybody who is familiar with the official Canon Manuals will soon realise that they are basically an 'aide memoir' for service personnel who have attended a Canon training course. eg in A1 manual it just says 'Remove Shutter Button' - no indication how or with what. What was OK for the official Canon repairman can be a bit of a worry for the tinkerer 30 odd years on, looking at a mint A1 door stop. You could always have a word with the Nikon man if you feel uneasy about doing the repair or do not have the correct equipment. Glenn. |