Just installed my pcm radio in my car with a GT-7 and all I keep getting is no signal from the reciever.

Can someone help fast.

1024 pcm 3 channel reciever, have steering in 1 and speedo in 2, and the wires go white red black with the white on the inside.

I have changed the wire around and still nothing.

Help me

Make sure your radio is in PCM mode rather than PPM. I'm speaking about the 3PJ/S, not sure what radio you have.

For some reason the module I had in there was not working properly.

I thought I could have any module in there and a reciever and use any crystal or is it specific. The module not crystal was 70 and 70on the reciever - works great but when I had a 66 in the radio it would not work.

If someone can explain that I would appreciate.
I have a 3pjs and it is in pcm mode.

Futaba site was no help

My son & i both have 3PJS's and run any crystals we want on 75mhz with a single 75 mhz module. We have Novak & Futaba RX's both PCM and PPM. No problems.

Sorry but i'm having trouble understanding your post... when you ran 66, you had both the radio & rx with 66 xtals in them, right? If you did it sounds like your 66 xtals are no good.

Got it workink yesterday. Now I goto use it and it is not getting a signal, swapped out recievers and speed controls and even radio and crap.

I do not know if the radio or reciever is messed up.

Any suggestions?

If I cannot figure it ou I am going to go get a JR synthesized radio!

Make sure your throttle ATL's are at 100%. If you dialed brakes out, the speedo won't set up properly.

I had that set it is just the fact that the speedo is not getting a signal from the reciever - that is what I am trying to figure out.

Is your speedo wired properly to your receiver? If it is, is that port on your receiver functioning? You can check by putting a servo there and seeing if it works.

Are you certain you have both a TX and RX crystal, they are both 75mgz, and you have the TX in the module and RX in the receiver.

Could it be your receiver is on 27 mhz and your radio is working on 75 mhz or vice versa?

I had everything working great on saturday with the correct crystals and frequencies, it is that I went ot test the car sunday and nothing, double checked voltages connections and nothing.

I am going to take it to one of the radio guys at the gate and have him look at it.

I picked up a JR XS3 pro synthesized radio and I am liking it alot. Once I figure out the radio glitched on my pcm I am going to be selling it off. But I am still looking ot find out why it died on me.