Yamaha DSP-A990 Operation Manual page 16

CONNECTING AUDIO/VIDEO SOURCE EQUIPMENT TO THIS UNIT
* If you have YAMAHA components numbered as 1, 2, 3, etc. on the rear panel, connections can be made easily by making sure to
connect the output (or input) terminals of each component to the same-numbered terminals of this unit.
CD player
Tuner
Tape deck 1
Tape deck 2
Turntable
14
OUTPUT
1
OUTPUT
2
3
LINE OUT
LINE IN
4
AUX 1
LINE OUT
PHONO
OUTPUT
GND
TV/DBS
GND
Video disc player
AUDIO OUT
VIDEO OUT
TV/Satellite tuner
AUDIO OUT
VIDEO OUT
AUDIO OUT
VIDEO OUT
AUDIO IN
VIDEO IN
Video cassette recorder 1
AUDIO OUT
VIDEO OUT
AUDIO IN
VIDEO IN
Video cassette recorder 2
VIDEO IN
Monitor TV