Set uses a triac for on/off. If you follow the black/blue/grey wires
to the tuning assy its there mounted in an odd position. That
is driven by either a photo optic isolator or small relay nearby.
PCB will be marked "PC" & "L". Both gave trouble.
There is a kit on e-bay now for the isolator. It comes
with instructions & a cable that goes is series with above wires.
It has a VDR on it for improved reliability.
There was one other lot that may have had a triac, it showed
IIRC three of the above cables.
BE SHURE you didnt knock one of the little plug in transistors
loose. You flip-flop may be flipping & not flopping
73 Zeno
