So I replaced the echo board the original was EPT0SSB50B this radio only had the flip switch for echo did away with that added newer style board from 2517 the newer board doesn't use the extra plug with the orange and red wire a the other end of the board. the pic of it on cb tricks isn't correct either it shows a 3 pin plug with red orange and brown on say the 33hl that lists it as the early board used. I suspect this has something to do with the beep not functioning because orange wire comes back down to the main board right next to the grey wire says tone in the right front area of the board behind c41 the red wire the other pin on that plug for echo board comes from directly in front of tr47. Any help here would be awesome.
