TM231A.6 From: rfc@briar.philips.com (Robert Casey;6282;3.57;$0201) Date: 28 Aug 89 15:03:59 GMT Sb: TM231/WEAK MIC AUDIO FIX A QUICK AND DIRTY FIX FOR THE KNWD TM231A LOW MIC OUTPUT: KNWD COMES OUT WITH A FIX WHICH IS TO BYPASS R 63 (3.3K). R 63 AND R64 FORM A VOLTAGE DIVIDER AT THE INPUT TO THE MIC AMP. R63 IS ON THE BOTTOM OF THE RIG. WITH THE BOTTOM COVER OFF AND THE FRONT OF THE RIG FACING YOU, LOCATE THE MIC AMP BOARD 3610 WHICH STANDS VERTICALLY OFF THE MOTHER BOARD. FOLLOW THE 3RD PIN FROM THE LEFT TO R63. A JUMPER HERE GIVES THE TX AUDIO A NICE BOOST. BE SURE TO READJUST THE DTMF OUTPUT IN THE MIC (THE ONLY POT IN THE MIC). 73 AND GOOD LUCK. GREG. 1951z, 473 msgs, #1786 last @KD6TH-4 MailBox>