Question about Nikon SB-28DX TTL Flash

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Broken flat ribbon cable on SD 28 flash

During a recent repair of the hot shoe mount, I accidentally snapped the flat ribbon cable from the base to the electronics. Is there a cheap solution to repair the flat wire cable?


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Re: Broken flat ribbon cable on SD 28 flash

Hello, after breaking mine this morning I was able to fix the flash so It can fire from the hotshoe.

Any automatic TTL features will still not work however atleast you will be able too fire in auto, and manual modes.

I simply opened the flash by taking off the hotshoe, and then swiveling the flash head 90 degrees to expose the four screws there. You need only remove the two screws from the front side of the unit.

Open the battery door and gently pull away the front case (Be careful there are several delicate ribbon cables that you do not want to snap. From here you can either unscrew all the ribon cables to free yourself room to solder or try and dodge them.

You should now be able to see the rear side of the PC sync socket. There is a blue wire that joins the outer edge of the socket - this is ground. Solder onto this point and join onto the top left circle of the PCB board of the hotshoe. (Opposite corner from where the ribbon cable attatches) There are copper circles exposed on the pcb for easy soldering.

Next, return to the rear of the PC sync socket and note the orange wire coming from the centre pin. Solder a wire to this point, and then down to the hotshoe PCB and to the circle that joins to the centre pin of the hotshoe. (Trace the circuit paths)

Sorry I did this about 30mins ago and I'm remembering this out of my head.


Posted on Jun 04, 2009

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Re: Broken flat ribbon cable on SD 28 flash

I'm afraid not. The ribbon cable (FPC, flexible printed circuit) will need to be replaced. Mending one or two lead on the cable is possible, but not the whole thing. Sorry

Posted on Jan 08, 2008

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