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Author Message   Rick_oleson Tinkerer Username: Rick_oleson Post Number: 60 Registered: 07-2006 Rating: N/A Votes: 0 Posted on Thursday, September 14, 2006 - 09:51 pm:    If you could borrow another flash to try on the body that might help. The only contacts that matter are the big one in the center and the metal rails on the sides. One of the 2 small pins is dead in the OM1N, and the other just lights the ready light in the finder. The side rails should have continuity to the camera chassis, and the center pin should short to it while the shutter is open. You can test that with an ohmmeter. If you get a connection from the center pin to the side rail while the shutter is open on B, then probably the most likely problem is a failure to get contact from the side rails to the contacts in the flash foot. These are leaf springs in the sides of the recess between the foot and the locking nut of the flash... sometimes they get weak with use and don't make good contact, and then a bit of tarnish can cause a failure. You can test the PC socket with an ohmmeter the same way, you should get a connection from the center hole to the outer shell when the shutter is open.