No transmit on am on my galaxy 66 v every thing else works fine

If your radio is a Galaxy DX66V then I believe that the Turner Road King should be wired to the 4 pin plug with:

Pin > Usage > Connection
1 > Ground > Shield & Red
2 > Mic Audio > White
3 > Transmit > Blue
4 > Receive > Black

If you want to confirm the mic wire colors use an ohm meter to test the following:

With the mic button not pressed:
Shield and Yellow are connected together
Red and Black are connected together
Blue is not connected to anything
White is not connected to anything

With the mic button pressed:
Shield and White are connected through the microphone transformer
Red and Blue are connected together
Yellow is not connected to anything
Black is not connected to anything

Hope this helps.

the problem is one you may not be able to work on . It will take a scope and a spectrum analyzer along with an RFSG to get this one working . Some simple ??. Does the radio come on ? Check with your hand passing over the radio to check for hot spots? The best thing to do is get it to a tech and let them work on it.

radio has a 3 yr warranty .send it back to galaxy

you should take it to a tech to check it out . there is a symptom called thermal intermittent.when the radio gets hot it stops transmitting.the oposite is also true and to find the problem a soldering iron would work but if you are not careful you could zap the radio..You would need a commercial thermal spot tester to accomplish thischeck the obvious first until you find the actual problem.

Could be , replace the driver and final ,see what happens .Then go from there.

Check the receive wire on the plug end of the mike, and the receive wire inside of the mike, just a starting point. ..hope this was helpful.....

Galaxy 66

These radios have a complicated synthesizer circut in them to create the operating frequency and are not easily aligned without the aid of very expencive equipment, Which must be kept calibrated! Call 7086 270 3829 they are Galaxy Experts and have that equipment which is kept in certified calibration, Service monitors, Spectrum analizers and all.

Check the wiring on the mic plug sounds like you have a loose wire or one thats about to break off.Good luck.....Dan