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My Kenwood TM-241A 2-meter rig looks brand-new, but its mike has in
intermittent PTT switch. A substitute mike from my Kenwood HF rig keys up the radio every time, and sure enough, when the TM-241A mike is failing, the PTT contacts at the mike's wiring terminals are not closing. Rapping the mike will restore the thing for a while, so I've eliminated the wire & plug. Now for the question - I was hoping to completely disassemble the mike and substitute a new PTT switch (or fix a loose wire, or whatever), but upon inspection, this mike has 2 printed circuit boards, and the swich & wiring in question are sandwiched between the 2 boards. Looks like a lot of posts on the DTMF keypad board actually support the mike circuit board - they are soldered in rows on the mike's circuit board. Do I unsolder all this carefully, or are those posts actually plugged into sockets on the DTMF keypad board (in which case I guess I need to pry them apart which so far doesn;t seem to separate them at all). So is this a socket I need to pry on harder or do I spend a long time unsoldering this thing? Anybody with experience with this that could guide me thru the process if I get in trouble? I'm OK with fine soldering, but don't want to start that if there's a better way. 73 Kevin VE9-XYZ |
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