Yamaha RX-V557 Owner's Manual page 28

BASIC SETUP
To balance the speaker levels
Perform the following steps after step 13 (see page 23).
VCR V-AUX
SP
A
The unit outputs the test tone from the selected speaker
and the left front (or left surround) speaker in turn. The
indicator of the speaker currently outputting the test tone
blinks in the front panel display.
14
Press d / u to select a speaker, then use j / i
to adjust the balance.
The control range is from +10 dB to –10 dB.
FR ----||----
Adjusts the balance between the front left and right
speakers.
C ----||----
Adjusts the balance between the front left and center
speakers.
SL ----||----
Adjusts the balance between the front left and
surround left speakers.
SB ----||----
Adjusts the balance between the surround left and
surround back speakers.
SR ----||----
Adjusts the balance between the surround left and
surround right speakers.
SWFR ----||----
Adjusts the balance between the front left speaker
and the subwoofer.
15
Press SET MENU to exit after balancing the
speakers.
24
DTV/CBL DVD MD/CD-R TUNER CD
Memory back-up
The memory back-up circuit prevents the stored data
from being lost even if this unit is in the standby mode.
VOLUME
dB
However, if the power cord is disconnected from the
L C R
SL SR
AC outlet, or the power supply is cut for more than one
week, the stored data will be lost. If so, adjust the
items again.