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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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vrc_tech
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SOURCE: Yaesu/Vertex FT-51R Repair

You can order the parts from Yaesu or your local Yaesu dealer can do it for you.

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SOURCE: Yaesu FT 11R

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.

Posted on Jan 10, 2009

n9vsj
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SOURCE: i want to wire the astatic tug8 microphone to a Yaesu FT 450 HF

open the radio and visually look at microphone wiring on the yaesu you should be able to wire mic accordingly.

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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SOURCE: yaesu ft 1500 m

Hi,

Here you can see the schematics http://www.repeater-builder.com/yaesu-vertex-standard/ft-1500/ft-1500m-sch.pdf

The manual can be found on the Yaesu website, http://www.yaesu.com/indexVS.cfm?cmd=DisplayProducts&ProdCatID=106&encProdID=92FB2363C1E0B9EBC9D3479054E0120B&DivisionID=65&isArchived=1

Good luck,
Gerard

Posted on Jan 30, 2010

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