Question about Vertex FNB-33, YAESU,FT-11R,FT-41R,FT-51R, 4.8v 1700mAh NiCd 2-Way Radio

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FT-11R with no RF Out signal

My FT-11R does not transmit anymore, no RF as also no red TX Led when
pressing the PTT button.By interchanging boards with a good FT-11R, I
found out, that the RF unit is not working.
My local dealer has no repairing parts anymore so does Yaesu.
Can anyone help me on this? Does anyone know where to get a repair manual with schematics partslist and layout to repair it myself.

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Posted on Jan 02, 2017

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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.

Posted on Aug 21, 2008

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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

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SOURCE: manual yaesu ft-10r

Posted on Jun 29, 2009

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SOURCE: Yaesu FT-26

Same problem for me also blocking on the tape amateur 144/148 MHz not of emission nor of green reception led does not ignite malgres the modifs. Have a solution thank you

Posted on Jul 27, 2009

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SOURCE: Yaesu ft-50r HT getting very hot and not charging battery

From the description your battery has one or more shorted cells. Replace the battery.

Posted on Mar 17, 2010

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If there is no receive likewise, then probably problem in the PLL/VCO section or 9V voltage regulator TR23 (2SC1096) or Zener diode D22 (9.1V).

If the receive is normal, then possibly any of two (2) faults:
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Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

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This is usually due to a stuck or shorted ptt line. I have repaired a couple of these and it was the same component each time. The packet TX transistor Q65 shorted causing the radio to power up in TX inhibit mode. Transistor Q65 is located on the underside of the IF board under the ACC 2 connector. This switching transistor is used only for tx (pin 9 of acc 2) and no other circuits depend on it. It can be removed completely if you don't mind not having ptt on acc 2.
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