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Advice needed on understanding wiring on a Sea & Sea housing


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#1 Trevor Rees

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Posted 10 February 2013 - 07:31 AM

DSC_2647r.jpg
Here we have the inside of a Sea & Sea DX-D80 housing showing the wiring from the 2 Nikonos bulkheads. The wires join at a small board before going to the camera hot shoe connector. There are 5 wires from the TTL converter bulkhead and 2 from the other one. Any idea how the wiring works and what the components are and why they are there. Would I be right in thinking that they might be diodes. Is this a standard configuration when two strobes are wired together electrically?
Any insight would be helpful.

Edited by Trevor Rees, 10 February 2013 - 02:13 PM.


#2 nortoda1

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Posted 12 February 2013 - 04:01 AM

Trevor
I can tell you what I do know - only 2 wires required to trigger strobe manually, that would be the centre point on the hotshoe (the trigger) and the rail of the hotshoe (earth). Not sure what you want to do, but if you want to connect a strobe directly to the ttl converter bilkhead all you need to do is cover all contacts on the hotshoe with the exception of the trigger and earth with some masking tape.

best of luck with whatever your up to

#3 nortoda1

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Posted 12 February 2013 - 04:06 AM

this might also help

http://www.ikelite.c...syncwiring.html

#4 Balrog

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Posted 13 February 2013 - 12:08 PM

The components in your picture are zener diodes. They act as a diode (analogous to a one way valve) until the reverse voltage reaches a certain threshold, after which they conduct in the reverse direction. The black band is the negative side.
Can't tell what they are doing in this application but you might be able to figure it out from the tracks on the other side of the board.

#5 Trevor Rees

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Posted 13 February 2013 - 03:11 PM

Zener diodes, that's useful to know. I've since been told they might be there to protect against voltage spikes.
My interest in this is just to know how to wire up dual electrical bulkheads on any future housing when many manufactures are moving away from this in favour of fibre optic cables.

#6 Balrog

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Posted 14 February 2013 - 12:17 AM

... I've since been told they might be there to protect against voltage spikes


Possibly. There is also a zener variant which has an identical package but acts as a current limiter. http://www.rapidonli...al-Zener-Diodes