I just received my King KT-76 transponder back from Flight Control Services after it was refurbished and approved for return to service. Encoder was also checked and okayed. I look at the wire harness and there are only three wires that do not hook into the encoder; red, white, and black. If I can figure out the proper connections for these wires can I legally install it myself? I'm thinking black is ground, red is power and white is ?.
Next question concerns the tray. What exactly is the purpose of the tray? Is it to hold the txpdr securely in the panel? I am looking at one on ebay for $75 and it appears that the antenna cable would not fit through the hole in the rear of the tray unless it unplugs from the unit. I am reluctant to pull too hard on it to see if it does. Does it indeed disconnect from the rear of the txpdr? Any advice would be appreciated. Jim.
Next question concerns the tray. What exactly is the purpose of the tray? Is it to hold the txpdr securely in the panel? I am looking at one on ebay for $75 and it appears that the antenna cable would not fit through the hole in the rear of the tray unless it unplugs from the unit. I am reluctant to pull too hard on it to see if it does. Does it indeed disconnect from the rear of the txpdr? Any advice would be appreciated. Jim.