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Quick Start Guide — DA AV EQ Series, cont’d  

Table of Contents  

Step 4  

Connect the cables of the input and output devices to the  

DA AV EQ, and power on all equipment.  

Chapter 1 • Introduction .......................................................... 1-1  

About this Manual ................................................................ 1-2  

About the DA AV EQ Series .............................................. 1-2  

Models .................................................................................... 1-2  

Features .................................................................................. 1-3  

Application diagrams ............................................................ 1-4  

•

S-video devices are connected to 4-pin mini DIN  

connectors.  

•

Composite video devices are connected to BNC  

connectors.  

Chapter 2 • Installation and Rear Panel........................ 2-1  

Audio devices are connected to captive screw or RCA connectors.  

Mounting the DA AV EQ Series ...................................... 2-2  

Tabletop use........................................................................... 2-2  

Rack mounting....................................................................... 2-2  

UL rack mounting requirements ..................................... 2-2  

Rack mounting procedure .............................................. 2-3  

Furniture mounting............................................................... 2-4  

Through-desk mounting ....................................................... 2-6  

Step 5  

Adjust the potentiometers (pots) for the output cable lengths, if  

necessary.  

•

If using very short output cables, make sure that the  

potentiometers are in the unity gain position; that is, with the  

arrow on each pot pointing to the dot beside or above the pot.  

Rear Panel Features and Cabling .................................. 2-7  

Setting the Audio Output Gain .................................... 2-12  

If the pots are already in the unity gain position (factory default  

settings), DO NOT CHANGE THEM. If they are not in the  

unity gain position, rotate them into position, using an Extron  

Tweeker. The illustration below shows the pots for outputs 1  

and 2 at the unity gain position.  

Chapter 3 • Front Panel Features and Operation ... 3-1  

Front Panel Features ............................................................ 3-2  

1

GAIN EQ  

/2  

1/2  

Gain and Equalization Controls ..................................... 3-4  

Settings for short cables ........................................................ 3-5  

Adjusting for long cables ...................................................... 3-6  

Adjusting with an oscilloscope ....................................... 3-6  

Adjusting without an oscilloscope ................................. 3-6  

Y

C

GAIN EQ GAIN  

Composite Video Models  

S-video Models  

Appendix A • Specifications, Parts, and  

Accessories........................................................................................ A-1  

Potentiometers at unity gain setting  

•

If using long cables, follow these steps to adjust the pots:  

Specifications ......................................................................... A-2  

Models........................................................................................ A-6  

Included Parts......................................................................... A-7  

Optional Accessories........................................................... A-7  

Cables ......................................................................................... A-8  

a.  

b.  

c.  

Supply the Color Bars test signal to the input.  

Recommendation: Use an Extron VTG 300 Video Test  

Generator to generate the test signal.)  

(

Adjust the Gain pot(s) for output pair 1 and 2 until the  

signal level at the far end is the same as the input (or the  

display shows the correct brightness and contrast).  

Adjust the EQ pot for outputs 1 and 2 so that no overshoot  

or round front corners appear at the far end on the scope  

(

or until you see a sharp picture with no smearing).  

All trademarks mentioned in this manual are the properties of their respective owners.  

d.  

Repeat steps b and c for the rest of the outputs.  

6

8-977-01 Rev. B  

09 07  

QS-2  

DA AV EQ Series • Quick Start Guide  

DA AV EQ Series • Table of Contents  

i

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