My gp300 cannot receive any voice

I AM VELMANI FROM TIRUPUR .MY MOTOROLA GM300 TRANCEIVER TRANSMITER SIDE OK.BUT RECEIVING SIDE CAN NOT RECIVE ANY FREQENCY.SO WHAT IS THE PROBLEM HELF ME .THANK YOU VERY MUCH.

Do you hear any reset tone on switch on, through the speaker?

if not:

is the speaker OK? Is the pin connector from the mic and the spker connected to the PCB properly? it can go both way!!

Do you have the schematic for the GP 300?

Chk the audio at the earphone pin, sometime the corroded pins make the connection to the spkr broken.

Give me more details, I may support you.

Peter VU2PJP

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