CP200 Bad Audio

[johnny1225]

I have about 5 CP200 UHF Radio's that have bad audio during start up. When you turn the Vol switch on, it is like a loud blast then it is ok. The audio works fine, then when you turn the volume up to about 1/2 way it going all crazy again with a blast of distortion. Then when you turn it up all the way it going back to normal again. It works with the internal speaker and with a accy in the jack same thing. Can anyone tell me what the problem could be or point me in the right direction.

Thanks in advance

John

[jackhackett]

try replacing the coupling cap, it's a large ceramic cap, 10uF I think, near the headset jack.