Yamaha Mg164 Owners Manual

 
MIXING CONSOLE
Owner’s Manual
MG16/4
MG12/4
Making the Most Of Your Mixer
Pages 6 to 17
E
 
MG12-16_E.book  Page 1  Monday, May 26, 2003  1:14 PM 

 
MG16/4, MG12/4  
2 
Precautions 
—For safe operation— 
WARNING 
 
Connect this unit’s AC power adaptor only to an AC outlet of the
type stated in this Owner’s Manual or as marked on the unit.
Failure to do so is a fire and electrical shock hazard. 
 
Do not allow water to enter this unit or allow the unit to become
wet. Fire or electrical shock may result. 
 
Do not place a container with liquid or small metal objects on
top of this unit. Liquid or metal objects inside this unit are a fire
and...

 
Precautions 
MG16/4, MG12/4 
3 
—For correct operation — 
 
XLR-type connectors are wired as follows: pin 1: ground, pin 2:
hot (+), and pin 3: cold (–). 
 
Insert TRS phone jacks are wired as follows: sleeve: ground, tip:
send, and ring: return. 
 
The performance of components with moving contacts, such
switches, rotary controls, faders, and connectors, deteriorates
over time. The rate of deterioration depends on the operating
environment and is unavoidable. Consult your dealer about
replacing...

 
MG16/4, MG12/4 
4 
Introduction 
Thank you for your purchase of the YAMAHA MG16/4 or MG12/4 mixing console. This mixing
console combines ease of operation with support for multiple usage environments, and is
ideal for SR setups, installed systems, and many other such applications.
Please read through this Owner’s Manual carefully before beginning use, so that you will be
able to take full advantage of the mixer’s superlative features and enjoy trouble-free operation
for years to come. 
 
The MG16/4...

 
Introduction 
MG16/4, MG12/4 
5 
(1) Be sure that the mixer’s power switch is in the STANDBY 
position. 
Use only the PA-20 adaptor included with this mixer.
Use of a different adaptor may result in equipment 
damage, overheating, or fire. 
(2) Connect the power adaptor to the AC ADAPTOR IN con-
nector ( 
1 
) on the rear of the mixer, and then turn the fas-
tening ring clockwise ( 
2 
) to secure the connection.
(3) Plug the power adaptor into a standard household power outlet. 
• Be sure to unplug the...

 
MG16/4, MG12/4 
6 
Making the Most Of Your Mixer 
An Introduction
You’ve got yourself a mixer and now you’re ready to use it. 
Just plug everything in, twiddle the controls, and away you go … right? 
Well, if you’ve done this before you won’t have any problems, but if this is 
the first time you’ve ever used a mixer you might want to read through this 
little tutorial and pick up a few basics that will help you get better 
performance and make better mixes.
 
MG12-16_E.book  Page 6  Monday, May 26, 2003...

 
Making the Most Of Your Mixer 
MG16/4, MG12/4 
7  
 A Place For Everything and Everything In Its Place 
1-1. A Plethora Of Connectors—What Goes Where? 
Questions you’re likely to encounter when setting up a system for the first time might include “Why all
these different types of connectors on the back of my mixer?” and “What’s the difference?”.
Let’s start by taking a look at the most common connector types. 
The Venerable RCA Pin Jack 
This is the “consumer connector,” and the one that has been most...

 
Making the Most Of Your Mixer 
MG16/4, MG12/4 
8 
1-2. Balanced, Unbalanced—What’s the Difference? 
In a word: “noise.” The whole point of balanced lines is noise rejection, and it’s something they’re very
good at. Any length of wire will act as an antenna to pick up the random electromagnetic radiation we’re
constantly surrounded by: radio and TV signals as well as spurious electromagnetic noise generated by
power lines, motors, electric appliances, computer monitors, and a variety of other sources....

 
Making the Most Of Your Mixer 
MG16/4, MG12/4 
9 
1-3. Signal Levels—Decibel Do’s and Don’ts 
From the moment you start dealing with things audio, you’ll have to deal with the term “decibel” and its
abbreviation, “dB”. Things can get confusing because decibels are a very versatile unit of measure used
to describe acoustic sound pressure levels as well as electronic signal levels. To make matters worse there
are a number of variations: dBu, dBV, dBm. Fortunately, you don’t need to be an expert to make...

 
Making the Most Of Your Mixer 
MG16/4, MG12/4 
10 
  
Where Your Signal Goes Once It’s Inside the Box 
At first glance the block diagram of even a modest mixer can look like a space-station schematic. In reality,
block diagrams are a great aid in understanding how the signal flows in any mixer. Here’s a greatly simplified
block diagram of a generic mixer to help you become familiar with the way these things work. 
2-1. Greatly Simplified Mixer Block Diagram 
 
Input Channel 
1 
Head Amp 
The very first...