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On my yaesu ft-757gx when I key up then speak the output goes to zero,the dial goes black sometimes relays click and the mode switches to lsb until the key is released.

Radio has a flat match across the dial

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  • Contributor
  • 21 Answers

Sounds like the power supply is faulty and dying when the transmitter demands current. Perhaps a loose connection or dirty relay contact.

Posted on May 10, 2015

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figured out how to solve this, with the radio off, push and hold both up and down scan buttons, while powering the radio on. This will fix the problem.

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all YAESU Manuals

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SOURCE: i want to wire the astatic tug8 microphone to a Yaesu FT 450 HF

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Posted on Apr 14, 2009

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SOURCE: I have a yaesu ft 890 transeiver

I've had good luck repairing a FT-890 with the same problem. I repair electronics for a living so there's a very good chance I can help you. Feel free to contact me at 941.748.1941 or at andros2112@yahoo.com.

73s - Steve

Posted on Aug 03, 2009

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