It is old radio. Could be even 30 years old.
First of it all I would connect it to signal generator and check sensitivity.
Inspect for leaking caps. Most probably a few are out of spec due to it's age.
Replacing them all is no solution.
I would trace failure and fix it.
Not possible without radio on the bench.
Chris
Yaesu FT-840 help needed
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ch25
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Re: Yaesu FT-840 help needed
WE ARE MOTÖRHEAD, AND WE PLAY ROCK N' ROLL
You can't have too many antennas...
You can't have too many antennas...
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LondonCbRadio
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Re: Yaesu FT-840 help needed
Ok thanks for the replies and help mate.ch25 wrote: ↑02 Feb 2023, 20:10 It is old radio. Could be even 30 years old.
First of it all I would connect it to signal generator and check sensitivity.
Inspect for leaking caps. Most probably a few are out of spec due to it's age.
Replacing them all is no solution.
I would trace failure and fix it.
Not possible without radio on the bench.
Chris
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LondonCbRadio
- Super Member
- Posts: 259
- Joined: 29 May 2018, 15:19
Re: Yaesu FT-840 help needed
About the signal meter on fm i think it's because FM is too wide band. Does anyone know if this can be fixed to make it more narrow band ?