What type of faceplate / bezel assembly does the TDR-950 have?
The TDR-950 has a plastic bezel assembly which contains the selector switches for ATC code input. This faceplate is held onto the radio assembly by 4 screws. When the faceplate ages, is mishandled or secured too tightly, this plastic bezel can crack. If left cracked and with continued usage, this faceplate can eventually become separated from the transponder thus increasing the possibility of improper transponder performance.