The lab crystal may not be starting reliably….old age….may need to try varying the ?capacitors in its circuit.
Dave.
On Sun, 6 Aug 2023 at 12:14, Fred, N1DEC <
fcidalab@...> wrote:
Hi
I have a FT-301D from new.
Lately sometime I use it the LSB setting is dead in RX and TX on all bands
USB is ok AM is ok.
I also think CW is dead in RX but seems ok in TX.
Then another day it works ok.
Where should I start looking?
I cleaned all the plug-in boards and switches.
Thanks
Fred
N1DEC
