They're at the top left of page.. was it 66? The wires seem to be labeled C to C4, but the "C" part is actually a graphic indicating a connection. Anyway, they come out of the big box on the top left (the CD player, IIRC), go up, then go to the right.

All these posts are nonsense. Upon suspecting where the line outs might be, one should measure voltages and resistance to ground on all four terminals. If they are safe, then a test telephone in MONITOR mode will tell you if there's audio present.

Of course, you have to have the unit in front of you to do this, but after all our posts and advice you have to do exactly that anyway, with the unit in front of you. So just do it! See if those four terminals have audio on them! (A later page even shows a stereo RCA cable coming off a board near the top of the unit.)