I recently acquired a FT-817nd, with the Tx mod (the one where you solder the 4 solder pads on the circuit board).
Anyways I want to undo the mod, but I can't find any information online about which solder pads were originally soldered... the instructions say to "solder 1-4 and unsolder 5", is 5 the only one soldered to begin with or were some of the 1-4 ones soldered?
That's one of the problems of modified radios. But if you are NOT very skilled at soldering (or rather desoldering) it may be best not to take a chance with an expensive radio. You need the proper sized soldering iron and tip, and solder wick, at the least; an adjustable temp iron is MUCH preferred. As with anyone who performed the original mod, proceed at your own risk.
Are you sure it was modded via solder and not software? Dunno why anyone would bother with the solder mods when you can accomplish the same thing with a PC and some free software...
Sounds like it was modded in software.
If that is the case I full hardware reset will undo the mod, but erase all of the memory data also.
Me, I, and Co.
i have a 817 which is five years old and have had it tx mod done by desoldering the pads,if you use software mods you lose some of the features i.e. automatic repeater shift is one.
73 de paul 2E0AYY
Then the opposite would be the "as shipped" configuration. #
Originally Posted by [b
Open up the radio and take look. #
If 1-4 are soldered, and 5 is unsoldered, then the hardware mod was performed.
You should be able to easily tell the difference between a hand-soldered mod and the factory solder joints by comparing what you see to the other joints around it. #Typically there will be resin flux around the hand soldered joints unless someone like myself performed the mod (I solder like factory SMT and clean up the flux). #
Use Solder Wick to desolder pins 1-4 and solder the jump on 5.
You will likely also have to perform a RESET, never hurts. #
The good news is that you can't kill the radio if no joy, just resolder 1-4 and unsolder 5, RESET and it will be back to where it is now. Provided you don't bridge any solder joints, that is. Be careful and inspect using a glass if you have to before applying power.