So I got the covers off the 939 and peeking around this looks like a huge can of worms compared to anything I have recapped in the past I am a bit nervous about messing with the tuner section as I have never worked on one. These Pioneers don't solder the wire harness in to the boards instead the coil the wires around posts wonder how the get continuity still after all these years and wonder if I should put a dab of solder on each one of them another thing I note is the pc boards are not silk screened with the usual + to show polarity for the caps so probably will do 1 at a time.. I think my plan of attack on this is to do 1 section at a time then DBT with variac after each section is done to see if I'm still good.