Yamaha 12/4 Owner's Manual page 21

8 Level-Meter Signal Switches (ST-GROUP Toggle
Switch and 2TR IN Switch)
These level-meter switches, together with the channel PFL
switches, select the signal that is sent through the
C-R/PHONES control to the C-R OUT jacks, the PHONES
jack, and the level meter.
The following illustration shows how the switch settings corre-
spond to the signal selection.
1
Switch
PFL
Signal
ON
PFL
2TR IN
OFF
GROUP
ST
1
If the input channel's PFL switch is on (
channel's PFL output it sent to the C-R OUT jacks, PHONES
jacks, and level meter.
2
If the 2TR IN switch is ON (
IN jack is sent to the C-R OUT jacks, PHONE jacks, and level
meter. If the 2TR IN switch is OFF, then the Group or Stereo
signal is sent instead (as determined by the ST-GROUP toggle
switch).
9 C-R/PHONES Control
Controls the level of the signal output to the PHONES jack and
the C-R L and R jacks.
0 Level Meter
This LED display shows the level of the signal selected by the
selection switches described in
OUT and PHONES jacks). The "0" point corresponds to the
standard output level. The indicator lights up red when the out-
put hits the clipping level.
A POWER Indicator
This indicator lights up when the mixer's power is ON.
B PHONES jack
Connector for headphones. This is a stereo phone-type output
jack.
The signal monitored by these jacks is selected by
NOTE
the settings of the ST-GROUP toggle switch, the
2TR IN switch, and the PFL switches on the input
channels.
2
2TR IN ST-GROUP
ON
C-R OUT
&
PHONES
ON
OFF
OFF
), then only the
), the signal supplied to the 2TR
8
above (the level to the C-R
Front & Rear Panels
MG16/4, MG12/4
21