Model Boat Mayhem

Technical, Techniques, Hints, and Tips => Radio Equipment => Topic started by: penfold on April 20, 2009, 10:57:54 pm

Title: futaba channel conv
Post by: penfold on April 20, 2009, 10:57:54 pm

    i am hoping that one of you clever bods out there may have done this
                 
               i have a futaba 6exp;- 6 cannel tx what i wanna do is convert channel 5 or 6 switch switch to a rotary knob type controller with a cenral off position,i know that some older tx had rotary knobs (i realise this will invalidate any warranty), i am fairly competent at soldering/electrics, all iwant to know is it possible ie is the wiring the same 2/3 wires or should i just give it up now!!!!!!! are the parts readily available?
     
                  hope you can help, penfold.

Title: Re: futaba channel conv
Post by: stallspeed on April 20, 2009, 11:10:15 pm

I've done it to several radios inc Futaba F14 and skysport not the 6exp.
The older Futaba radios had an NE5044 analog encoder so all channels could be rotary or slider.
With the move to processors it depends on what the channel can be programmed to accept.
Do you know what the encoder chip is?

Title: Re: futaba channel conv
Post by: penfold on April 20, 2009, 11:16:47 pm

  hello stallspeed,when i said i was good at electrics i was not prepared for that question how do i find out???

Title: Re: futaba channel conv
Post by: stallspeed on April 20, 2009, 11:17:57 pm

It is on the main circut board with the number on it.

Title: Re: futaba channel conv
Post by: penfold on April 20, 2009, 11:29:15 pm

 right have back off tx on the main board at the bottom there are to chips one square large  withnothing more than doodles the other is slightly smaller and has alot of writing and is as follows bu4051bce   802    n or h63 ,  at the corner of the board is ta87-1
    i am not totally sure this is what info i need
           i appreieciate the help

Title: Re: futaba channel conv
Post by: stallspeed on April 20, 2009, 11:38:24 pm

Looks like it has a processor in which case it is dependant on whether the channel will accept 3 position switch.

The NE5044 on the older radios is like the picture only with 16 pins.
The number was printed on it.

Title: Re: futaba channel conv
Post by: penfold on April 20, 2009, 11:40:48 pm

  i might just have to suck it and see,cheers for the help!!!!

Title: Re: futaba channel conv
Post by: FullLeatherJacket on April 21, 2009, 08:17:45 am

When I spoke to the Service Engineer at Ripmax-Futaba about this (about 18 months ago), he told me that it was not possible to convert these channels to proportional. However, there is a member of this forum who has discovered a method of hacking into the software and re-allocating the channels and switches. I have no other information.
FLJ