Topic: R4 repair help: headphone socket? sound only comes out of "speakers"

[poorlyconditioned]

When I play sound comes only out of the "speakers".  Nothing out of headphone.

I tried the menu item ("speaker switch") on/off, didn't make any difference.

Then I figured my headphone socket had gone (it seemed loose) so I ripped it off the board.  But I cannot figure out the circuit to switch off the speakers/switch on the headphone.  I tried to trace it but the headphone jack has something like eight terminals.  Not all used, but I can't figure it out.

Anyone else have this problem.  Maybe it is not my headphone socket at all.

Thanks,
  Richard