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Thread: YAESU FT-2200 problem

  1. #1

    Default YAESU FT-2200 problem

    Hello dear ham-operators,
    I looking on net for my problem solution and can't find it. I have YEASU FT-2200, old but in good condition and can be used more. TX and RX working good but problem is with mic. No modulation TX. First i think is mic, I replaced it with another, working mic but problem is still there.
    After that I check solders and they good to. Scheme lead me to mic uni tbut I have'nt possibility to check it.
    Is enyone have same or similar problem?

    I'll be greatful is enyone of you can help to solve this problem.

    73

  2. #2
    Super Moderator 5B4AJB's Avatar
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    Best test is to inject some kind of tone into the mic socket (or FSK) and see if it transmits it...

  3. #3

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    Quote Originally Posted by 5B4AJB View Post
    Best test is to inject some kind of tone into the mic socket (or FSK) and see if it transmits it...
    I try with mic who have beep tone and nothing again after that checking voltage and everithing is OK (on that mic voltage is 5V). When I finish with voltage testing I remebered to check did PL tone working and of course not. Now I thinking maybe modulation unit not working.

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