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Old Jun 24, 2010, 09:57 AM
Terry Keeley is offline
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Old Futaba tx pinout?


Found this pinout for the Futaba FP-TP tx module that's in the 3PJ, 7U, 8U, 9C & 9Z:

looking at the back of the transmitter, antenna pointing away from you:

left side
#1 PPM
#2 switched battery positive
#3 RF good (pulled low through a transister when signal is present at the final amp)
#4 ground
#5 RF out
right side

I knew my old 3EGX modules were 10 pin but when I opened one to have a look the pins are tied together so the result is only 5 inputs to the module:




So using the same orientation as previous, pins 1/2, 3/4, 5/6/7, 8/9, 10 feed the tx. Any idea whats what? Any way to find out?

Guess you figured where this is going. Here's the FASST unit that replaces that FP-TP module:

http://www3.towerhobbies.com/cgi-bin...&I=LXUMU0&P=SM
Last edited by Terry Keeley; Jun 24, 2010 at 11:11 PM.
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Old Jun 24, 2010, 12:51 PM
JimDrew is offline
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Xtreme Power Systems
The pin 10 modules we have here don't match this pin out.

1, 3, 5 are PPM, +B, and GND with the other pins not tied together.
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Old Jun 24, 2010, 01:33 PM
Terry Keeley is offline
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Quote:
Originally Posted by JimDrew View Post
The pin 10 modules we have here don't match this pin out.

1, 3, 5 are PPM, +B, and GND with the other pins not tied together.
Thanks for taking time to reply Jim, I sent an e-mail asking if you had a 10 pin module for me, I have my answer!

So just to be sure, looking at the module in the center of the picture from the left:

1&2 = PPM

3&4 = +9.6v

5/6/7 = GRD

What about:


8&9 = ?

10 = ?

Or have I completely misunderstood and you're quoting YOUR pinout?
Old Jun 24, 2010, 02:05 PM
village_idiot is offline
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I would do nothing until putting an oscope, and meter on the tx and seeing what is what.
Old Jun 24, 2010, 11:12 PM
Terry Keeley is offline
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Quote:
Originally Posted by village_idiot View Post
I would do nothing until putting an oscope, and meter on the tx and seeing what is what.
Thanks, can you point me to some info on the subject?
Old Jun 28, 2010, 11:05 AM
Terry Keeley is offline
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Anyone?


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