Board swapping
I took the original FT101 and put it back on the bench. I put in the known working Power supply board. Then I swapped out the ALC board with the second one.
Woohoo! This fixed the ALC maxed out problem. When looking at the board I did notice that one of the transistors had been replaced. So maybe the replacement one is the wrong part...
Anyway after that I adjusted the bias, adjusted the ALC and did some transmit tests.
I got over 100 watts on 80, 40, 20, and 15. I think I got 75 watts on 11m. And only 35 watts on 10 meters. Also only got 25 or 35 watts on 160 meters.
This radio also had a problem with the PO position. It always read too high/off scale. I did find the adjustment and was able to adjust this down to the correct level.
So it is 95% working. Next I'll have to work on a microphone.
Woohoo! This fixed the ALC maxed out problem. When looking at the board I did notice that one of the transistors had been replaced. So maybe the replacement one is the wrong part...
Anyway after that I adjusted the bias, adjusted the ALC and did some transmit tests.
I got over 100 watts on 80, 40, 20, and 15. I think I got 75 watts on 11m. And only 35 watts on 10 meters. Also only got 25 or 35 watts on 160 meters.
This radio also had a problem with the PO position. It always read too high/off scale. I did find the adjustment and was able to adjust this down to the correct level.
So it is 95% working. Next I'll have to work on a microphone.
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