Warning Messages From Ypao - Yamaha Aventage RX-A780 Owner's Manual

Warning messages from YPAO

If a warning message is displayed after the measurement, you can still apply the
measurement results by following on-screen instructions.
However, we recommend you perform YPAO again in order to use the unit with the
optimal speaker settings.
TV screen
Warning message
WARNING 1
A speaker cable may be
connected with the reverse
polarity (+/-).
Warning message
WARNING 2
A speaker is placed more than
24 m (80 ft) from the listening
position.
WARNING 3
There are significant volume
differences between the
speakers.
47
En
Remedy
Use the cursor keys to select "Measurement result" and press
ENTER, and then select "Wiring" in "Measurement result".
Check the cable connections (+/-) of the speaker identified by
"Reverse".
If the speaker is connected incorrectly:
Turn off the unit, reconnect the speaker cable.
If the speaker is connected correctly:
Depending on the type of speakers or room environment, this
message may appear even if the speakers are connected
correctly. In this case, you can ignore the message.
Use the cursor keys to select "Measurement result" and press
ENTER, and then select "Distance" in "Measurement result".
Check the speaker identified by ">24.00m (>80.0ft)". Exit
YPAO, turn off the unit, and place the problem speaker within
24 m (80 ft) of the listening position.
Use the cursor keys to select "Measurement result" and press
ENTER, and then select "Level" in "Measurement result".
Check the speaker identified by ">+10.0dB" or "<-10.0dB".
Then, check the usage environment and cable connections
(+/-) of each speaker, and the volume of the subwoofer. If there
is any problem, exit YPAO, turn off the unit, and then reconnect
speaker cable or correct the speaker positions. We
recommend using the same speakers or speakers with
specifications that are as similar as possible.