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[timg]

Hi all

Has anyone fitted a 2.4GHz hack module to this transmitter?

I'm not sure if I can connect it to the buddy lead connection... ?,

I believe that the module has three connections  +, - and a signal ,

The buddy connection is a 5 pin din socket and just by chance ,only three of the pin's are connected to the pcb,
Between two of them I have 10 volts which leaves one connection  (is this the signal ?)


Any help would be appreciated

Pic's will follow if we can get it working

Thanks
Spud

[IKB]

Hi Spud,

It should be possible, I did the same thing with my F14 Navy and did a dual analog / digital conversion.

http://www.modelboatmayhem.co.uk/forum/index.php/topic,52395.0.html

Alex

[Subculture]

Easy to do, as they're based on an NE5044 encoder chip. The ppm pulse is on pin 11 of the encoder, this connects to the tuner board with a white wire on my set. Ground can be found easily on the encoder board, and is also on pin 8 of the NE5044. Your positive feed is on pin 16.

I would remove all the old tuner board as it frees up quite a bit of space, and you should be able to run your set on 2s lipo instead of the big bulky and heavy nicads.

[timg]

Hi Alex

Thanks for your reply,
I knew I had seen details about the buddy socket ,it has highlighted the problem of isolating the 40mhz side of the unit , that was until subculture has pointed out about removing the tuner board

Hi subculture
Thank you for your post ,fitting a chip is a bit more involved than I want at the moment, but it may happen in the future  (I would like an 8 channel set) I have had a look at what wire go where.
The right hand side board with 5 servo reversing and throw adjustment pots has a lot of wires going to the sticks and switch  (5th channel ) , that leaves a red ,black and white which connects to the other board/red power led ,
not had chance to test yet but
I'm i right to think that I can use the red  which is from the red led as +
Black from the other board -
White from the other board as the signal  ? ??

I hope that makes sense

If it's right I will order the hack module and a receiver

Thanks again
Spud

[Subculture]

I never mentioned fitting any chip. The 5044 chip I did mention is already in the set, and what I outlined was how to spur off the feeds you require for a 2.4ghz hack.

I won't give any more specifics beyond this, because if you have difficulty reading schematics and pin outs then really you shouldn't be tinkering with the set.

[timg]

Hi subculture,

After having a closer look I see what you mean , sorry for the confusion

Thanks for the info

Spud

[spearfish99]

Been following this as I have 2 unused xp/fm on 40mhz and a sacrificial one on 35mhz.  I already have a JR  transmitter converted with a hack unit which works well.

  With compliments to subculture for his info,  I don't think that there are many of use who would attempt to attach wires from the hack unit to the chip already fitted. I think like spud, we are looking for more substantial  wires that we can join up to. With Futaba tx's it is recommended to use the connections going to the trainer socket.  I have been looking at my 35mhz unit and in particular, the unit on the base of the tx where the socket for the external charger connected to ( between the two battery positions) Just trying to work out what connects to this and if the connections can be used for the hack unit.