IC2410.4 I JUST PURCHACED A ICOM 2410 AND HAD PROBLEMS WITH LOW AUDIO. I CONTACTED ICOM AMERICA AND THEY TOLD ME TO REPLACE THE 4 VOLT ZENER DIODE IN THE MIC WITH A 8 VOLT ZENER DIODE. JUST THOUGHT THAT I'D PASS THAT INFO ALONG TO ANYONE WHO WAS HAVING THE SAME PROBLEM. 73 ... CHUCK