I need Rockman Soloist power plug pinout for 1/8'' TRS +6v/-6v supply

[George Moore]

 I have a soloist here with curdled battery pan, and a split supply, I've searched and haven't gotten any clues to the polarity of the TRS pinout, I have a plug here that fits the jack, and batteries for testing, but have to avoid reverse polarity, perhaps someone knows this ?

[George Moore]

  3 big wires come from the PS side of the unit, Blue, BLack, Red.
  Black connects to grounds so that's Vbias, 1/2v of supply.
  THe supply is a couple 5k6 resistors dividing a big 12v alarm battery with 10uf / 10uf across the rails, red has to be hotter than blue so if it works that'll be good, cleaned the switches while I was in there and routed the 3 wires out the top. The batteries had completely eaten traces of the PS board all the way across.
  Fingers crossed here I go...
  Totally functional now !