Go Back   Rangefinderforum.com > Cameras / Gear / Photography > Classic Film RangeFinders & Other Classics > SLRs - the unRF

SLRs - the unRF For those of you who must talk about SLRs, if only to confirm they are not RF.

Reply
 
Thread Tools Search this Thread Display Modes

Om4 Flash Synchronization
Old 03-30-2011   #1
Michael Da Re
Registered User
 
Michael Da Re is offline
Join Date: Oct 2006
Posts: 240
Om4 Flash Synchronization

I just picked up an OM4 from KEH. It's UG condition and it's from their as-is cameras but for $23.00 I'll take a chance. The flash sync doesn't work. Does this matter if you never use flash? And if it does can it be repaired?
Thanks in advance.
Michael
  Reply With Quote

Old 03-31-2011   #2
dtcls100
Registered User
 
dtcls100 is offline
Join Date: Sep 2010
Posts: 453
If you never use flash, the fact that the flash sync doesn't work isn't a problem, as long as there is no issue with the shutter otherwise. The problem can be fixed as long as it isn't caused by a circuit board problem, as replacement boards are unavailable these days.
  Reply With Quote

Old 03-31-2011   #3
John Hermanson
Registered User
 
John Hermanson is offline
Join Date: Dec 2008
Posts: 350
Did you try sync socket AND hot shoe, same result? Could be flash switch contact problem. If sync socket works but hot shoe is ng it could be as simple as cleaning the contacts. Problem could also be bad transistor under top cover. John
  Reply With Quote

Old 03-31-2011   #4
Michael Da Re
Registered User
 
Michael Da Re is offline
Join Date: Oct 2006
Posts: 240
I haven't yet received the camera from KEH but as soon as it arrives I will check the extent of damage. The problem is that I don't even own a flash that I could test it with. I have never used one with my OM's. Thank you for the replies. They give me a starting point.

Michael
  Reply With Quote

Old 04-05-2011   #5
Michael Da Re
Registered User
 
Michael Da Re is offline
Join Date: Oct 2006
Posts: 240
I received my OM4 from KEH today. I put fresh batteries in and it fired right up. Everything seems to be working correctly. The only thing wrong with the flash is the flash shoe is loose and prevents the flash from making contact unless I shoot vertical. I need to remove the top to tighten the shoe but I have no idea what tools I would need and exactly what I need to remove. Any help would be greatly appreciated.

Michael
  Reply With Quote

Old 04-06-2011   #6
dtcls100
Registered User
 
dtcls100 is offline
Join Date: Sep 2010
Posts: 453
I wouldn't try to lift the top cover of an OM-4 myself. The circuit board is crammed under the top cover and could be damaged/cracked if you aren't real careful and know what you're doing in removing and putting it back -- and the circuit board is not replaceable if damaged. I would have a professional -- like Camtech (John Hermanson) -- handle this for you. Since you only paid $23 bucks for the camera, for the cost of a CLA ($140 or so), you could have a good as new OM-4 for about $160+.

Last edited by dtcls100 : 04-06-2011 at 11:03.
  Reply With Quote

Old 04-06-2011   #7
dtcls100
Registered User
 
dtcls100 is offline
Join Date: Sep 2010
Posts: 453
I wouldn't try to fix it myself. The circuit board could be damaged if you aren't real careful and know what you're doing -- and the circuit board is not replaceable if damaged. Just take a look at what the circuit board looks like at www.zuiko.com to get an idea of what you would be dealing with. I would have a professional -- like Camtech -- handle this for you. Since you only paid $23 bucks for the camera, for the cost of a CLA ($140 or so), you could have a good as new OM-4 for about $160+.
  Reply With Quote

Old 04-06-2011   #8
Michael Da Re
Registered User
 
Michael Da Re is offline
Join Date: Oct 2006
Posts: 240
dtcls100, I appreciate the concern but this is something I would rather attemped myself. I've never had a problem tearing into the unknown

Michael
  Reply With Quote

Old 04-06-2011   #9
Landshark
Registered User
 
Landshark is offline
Join Date: Jun 2009
Location: Montgomery, Il
Posts: 546
Are the screws hidden under the spring in the hot shoe?
  Reply With Quote

Old 04-06-2011   #10
Michael Da Re
Registered User
 
Michael Da Re is offline
Join Date: Oct 2006
Posts: 240
The screws are under the spring but they come in from the bottom so the top has to be removed to tighten them.

Michael
  Reply With Quote

Old 04-06-2011   #11
Keith
On leave from Gallifrey
 
Keith's Avatar
 
Keith is online now
Join Date: May 2006
Location: Australia
Posts: 18,561
Quote:
Originally Posted by Michael Da Re View Post
dtcls100, I appreciate the concern but this is something I would rather attemped myself. I've never had a problem tearing into the unknown

Michael

At $23.00 why not ... the unknown can be fun!
__________________
---------------------------
flickr
  Reply With Quote

Old 04-07-2011   #12
John Hermanson
Registered User
 
John Hermanson is offline
Join Date: Dec 2008
Posts: 350
Hot shoe screws go on from the inside. The circuit board picture on my site doesn't show the flex circuit inside the top cover. Hot shoe pins are soldered into the flex, and the flex (attached to the inside of the top cover with double sided tape) covers 2 of the screws that hold the hot shoe in. That circuit and "spot-high light-shadow" contact plate must be taken off and flex pealed up from the top cover to get at the screws. Not really a home job, imo. John
  Reply With Quote

Old 04-07-2011   #13
Michael Da Re
Registered User
 
Michael Da Re is offline
Join Date: Oct 2006
Posts: 240
I especially value your input John when it comes to OM's. So for the time being I may just leave it be. It's not like I use flash that much if at all. But if I do decide to fix it I would much rather take it on myself with a camera that I didn't pay much for instead of one that I did.

Thank you all for your input,
Michael
  Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -8. The time now is 23:16.


vBulletin skin developed by: eXtremepixels
Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.

All content on this site is Copyright Protected and owned by its respective owner. You may link to content on this site but you may not reproduce any of it in whole or part without written consent from its owner.