hope you already resolved your problem, if not, this is what I did
when I had the same problem.
*Look at your AF unit, then locate J3052 (POO9O622) it´s a little molex
connector with three wires,
All three are white, then close to that connector are two voltage
Q3028 (2SC2712GR) and Q3027 (2SD667C) , those regulators take 9V to 5V.
In my FT1000 Q3028 was damaged, but check those two, if one of them
are damaged replace them, those are easy to find in radio shack or
dealer near you, Well then those two regulators go to the Audio amp.
(TDA2003V) and then audio out.
Hopefully I can be usefull to you, my English is not good, please feel
to ask any question if I didn´t explain myself.
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