Audio Output Jacks; Audio Input Jacks - Yamaha YPC-1 Owner's Manual

AUDIO OUTPUT jacks

Connect a power amplifier to these jacks.
The same signal is output to these two jacks (1 and 2).

AUDIO INPUT jacks

Connect external components to these jacks to input analog signals.
Use the INPUT selector on the front panel to select an input source from
jacks 1 through 5.
3