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Yaesu FT-890 with Low RX gain

Discussion in 'Ham Equipment' started by hi3mfr, May 7, 2018.

  1. hi3mfr

    hi3mfr Member

    May 7, 2018
    Likes Received:
    Hi friends 73s HI3MFR

    This is my frist thread...
    I have a issue with my FT-890: I replace all the electrolytic capacitors in the Local Unit and RF Unit boards because this radio was showing fails with the display blinking and now is working good, but now also have a low RX gain level. I test with my other radio (ts-820s) and I RX a friend mine in 9+20dB but with the FT-890 the same friend only have in 3dB and with low signal.
    I also resolder all the welds in bad condition and maybe I caused a short circuit in some point of the card ... I not sure ...
    Wow can I solve this ?
    many thanks
    sorry for my bad english


  2. BJ radionut

    BJ radionut Supporting Member and 6m addict

    May 9, 2008
    Likes Received:
    Welcome first...I would retrace your steps make sure all the small coax jumpers are...
    A: Proper locations on the boards...
    B: Make sure there is no damage from removal/replacement...might look for tarnish and buff with a scotch-brite pad carefully
    C: All the ribbon connectors and small jumpers are seated and make sure all the pins made connection..easy to miss one on those long connectors.
    All the Best
    hi3mfr likes this.

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