05-19-2014, 05:12 AM
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Join Date: Apr 2014
Sorry I don't have one to play with but...yaesu always uses the jump pads next to the if chip..The ft
1dr is just a vx 8 revamped so would assume the 400 is just a revamped ft
Just locate the if ic and look for the solder pad jumpers n carefully remove one at a time "normally the front one " and reset radio and try.
If it doesn't work ...simply reinstall part.
I never waited for mods to show up..yaesu methods doesn't change .
And of course this would be for emergency purposes only or simple general knowledge ."disclaimer".