I agree with Moose. No abrasives as there's not likely to be any
corrosion there.
What did you mean by a "remote cord" with the 283? Something attached
to the hot shoe or to the PC socket? If the problem persists I'd try
firing the flash via a PC cord plugged into the PC socket and see if the
problem is there as well. It might help determine whether there's an
internal electrical connection problem or just external on the hot shoe
contacts.
A question I don't know the answer to. What happens to flash function
if (as happens with some 4Ts) there is a ground problem with the bottom
plate and its attaching screws?
Dr. Flash
Moose wrote:
> usher99@xxxxxxx wrote:
>> Hi, Seems my 4T hot shoe intermittently is a problem with failure
>> to trigger the flash. This happened a few months ago with the T28
>> and a couple weeks ago with a Viv 283 with a remote cord. Both
>> systems worked flawlessly on an OM-2. The 4T seemed OK after I
>> lightly rubbed the central contact with an emory board.
>>
> I wouldn't use anything as abrasive as that. A pencil eraser has
> always worked pretty well for me. If the contact looks nice and
> clean, the problem may be grease/oil and a Q-Tip with a bit of
> solvent works wonders.
>> I may have wiped off the OM-2 contacts 3 years ago, but that has
>> never happened with it or a 2N. Some of the 4T contacts are
>> recessed and difficult to clean. Any suggestions?
> Again, a soft eraser will easily form to get down in the recess and
> cotton/cloth with dab of solvent also will get down there.
>
> Moose
>
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