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Yaesu FT- 767 mods


NOTICE: TO ALL CONCERNED Certain text files and messages contained on this site deal with activities and devices which would be in violation of various Federal, State, and local laws if actually carried out or constructed. The webmasters of this site do not advocate the breaking of any law. Our text files and message bases are for informational purposes only. We recommend that you contact your local law enforcement officials before undertaking any project based upon any information obtained from this or any other web site. We do not guarantee that any of the information contained on this system is correct, workable, or factual. We are not responsible for, nor do we assume any liability for, damages resulting from the use of any information on this site.
FT767

I have had my Yaesu FT-767 modified by the service facility for three
things:
1. Memory battery circuitry. Previously the circuitry caused
unnecessary drain on the memory battery, resulting in shortened
battery life. There is a kit available for this modification,
which I ordered (free of charge). After reading the instructions
and not being able to even find the components involved, I took
the unit down to LA to the service facility.

2. Hum mod. I don't know anything about this mod. It was
performed while the unit was in for the previous mod.

3. DATA IN/OUT Jack audio control modification. This mod was
originated by me. Since I have had the unit, I had not used it
for packet because I could not defeat the audio from the speaker
in any way without rendering the audio from the DATA IN/OUT jack
unusable. This jack was supposed to provide direct connection to
the FM modulator and discriminator for packet. It obviously was
affected by the AF gain, external speaker disconnect, i.e., anything
which affected the audio at the built-in speaker. Examination of
the circuit diagram seemed to indicate the audio for this jack
came from the headphone circuit.

CONTINUED IN FILE FT767.2
 
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