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    Yaesu FT-757GX will not transmit on 17M or 12M bands RX is OK

    Ok. Just spent some time scouring the schematics. RF board sends the band switch lines for each band, 160, 80,40,30,20,17,15,12,10 to the Local board Local board send them to the LPF, but it combines 12 and 10 in one, and 17 and 15 into another. 30 and 20 into a 3rd and the rest are by...
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    Yaesu FT-757GX will not transmit on 17M or 12M bands RX is OK

    Thanks, I appreciate it
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    Yaesu FT-757GX will not transmit on 17M or 12M bands RX is OK

    When I bought it a month or so ago, I was told everything worked but the display, so I'll take that with a grain if salt that 12 and 17 probably weren't working... I have an rf voltage probe and a digital 50mhz Oscilloscope.. along with the usual dvm etc
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    Yaesu FT-757GX will not transmit on 17M or 12M bands RX is OK

    It's the 500KHz Ceramic Resonator on the display board. Double checked my OP to make sure that was what I wrote LOL I guess I should have stated more plainly that replacing the resonator didn't kill anything. After the display was working and I started testing the radio, 12 and 17m would not...
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    Yaesu FT-757GX will not transmit on 17M or 12M bands RX is OK

    I have a FT-757GX that I picked up cheap. Display wasn't working Found the 500khz ceramic resonator on the display board had been broken off Replaced it and the radio now works as it should, except I have no transmit on 17 and 12M. Receive is fine on all bands and modes. Any ideas where to...
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