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Vintage Amateur and Military Radio Amateur/military receivers and transmitters, morse, and any other related vintage comms equipment.

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Old 29th Jan 2019, 11:23 am   #1
M3VUV51
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Default Yaesu FT-290 MK1

Hi all I've just dug out my old 290, just noticed it only tunes in an upwards direction, anyone seen this before?

Cheers, M3VUV.
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Old 29th Jan 2019, 11:49 am   #2
HamishBoxer
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Default Re: Yaesu FT-290 MK1

Possibly key pad switch if it has one sticking?Or I am totally wrong and it is tuned via a knob.

Tuning step switch causes issues.

There is a Yaseu forum that (www.whelan.me.uk/radio/mods290i.htm) might help.
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Old 29th Jan 2019, 1:03 pm   #3
G6Tanuki
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Default Re: Yaesu FT-290 MK1

I'd be checking the outputs of the rotary-encoder first; I've had problems with these on Yaesu gear in the past (my old FT-2400 is on its third one....)
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Old 29th Jan 2019, 1:19 pm   #4
SiriusHardware
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Default Re: Yaesu FT-290 MK1

I had a problem on a Kenwood TS50 where buttons not working on the front panel were due to a fault on the CW key socket, because one of the switches in the socket was essentially one more button on the keypad and it was stuck in the closed position and preventing the uP from scanning any of the other buttons while it waited for the 'button' in the CW key socket to be released.

However, only tuning in one direction would normally be a fault with the rotary encoder which is what the tuning control probably is. They are common enough, just getting one with exactly the same size / type of shaft and pin footprint could be a problem. With great care, you may be able to take the original encoder apart and fix it.

Edit: Tanuki beat me to it.
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Old 30th Jan 2019, 1:01 am   #5
M3VUV51
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Default Re: Yaesu FT-290 MK1

May have a look at some point. TBH I hate these rigs ,total pigs to work on, total Yaesu under built junk!!
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