Proel M822USB - Manual (Page 19)

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51. ALT3-4 to C.ROOM switch
Push this switch to send the ALT3-4 bus signal to C.ROOM and PHONES outputs.
52. 2TRK to C.ROOM switch
Push this switch to send the 2TRK input signal and USB input signal to C.ROOM and PHONES outputs.
NOTE: for a correct opera on we suggest to choose these three switches (50) or (51) or (52) one a me.
IMPORTANT: these switches also select which signal is displayed on LED METERS when none channel is soloed.
53. C.ROOM jack outputs
These JACK connectors provide an unbalanced line-level signal that can be used to monitor the MAIN MIX program or
as an addi onal output.
54. PHONES stereo jack output
STEREO JACK connector for the headphones output: only stereo headphones with a minimum impedance of 32 Ohms
should be connected to this output.
55. C.ROOM/PHONES LEVEL control
This controls the CONTROL ROOM and PHONES output’s level.
NOTE: The signal at these outputs is the same.
56. L & R LEVEL METERS
The level meters are made of two columns of of eight LEDs with three colours to indicate diff erent ranges of signal
level:
• green = shows the normal opera ve level of the signal (from -30 to -6 dBu)
• yellow = shows the nominal opera ve level of the signal (from 0 to +6 dBu)
• red = shows a high signal level (near +20 dBu CLIP level).
57. +48V phantom switch and LED
This switch ac vates (LED on) and deac vates (LED off ) the phantom power on MIC Inputs. Most professional condenser
microphones require phantom power, which is a lower DC voltage delivered to the microphone on pin 2 and 3 of the
XLR microphone connector. Dynamic microphones do not require phantom power, however phantom power will not
harm most dynamic microphones should you plug one in while the phantom power is on. Check the manual of your
microphone to fi nd out for sure whether or not phantom power can damage it.
58. ON led
Indicates when the mixer is switched on.
59. POWER switch
Make sure that all master output knobs are turned all the way down when powering your mixer up or down.
60. FUSE holder
Here is placed the mains protec on fuse. Please follow the instruc ons on page 10 of this manual to replace it.
61. AC~ socket
Here’s where you plug in your mixer’s mains supply cord. You should always use the mains cord supplied with the mixer.
Be sure your mixer is turned off before you plug the mains supply cord into an electrical outlet.
62. PRODUCT LABEL
In this label are wri en the most important informa on about the mixer, model, line voltage, consump on, serial
number.