Extron electronics DA Series Manuale utente

Setup Guide — DA AV EQ Series

The Extron® DA AV EQ series are distribution ampliﬁers

(DAs) that are available with composite video or S-video

plus audio, audio only, and video only. They provide

long cable drive capability and individual gain and

equalization adjustment for each output pair. The two

dual models can each be conﬁgured to function as two

DAs.

This guide provides basic instructions for an experienced installer to set up and operate these

distribution ampliﬁers.

Step 1 — Turn off and disconnect all equipment from power source

Step 2 — Mount the unit (optional)

If desired, mount the DA on a 9.5 inches deep or 6 inches deep rack shelf, or on furniture.

Step 3 — Connect video devices (all models except DA 6A)

• Connect video input: Connect a composite video or an S-video source device to the Input

connector. If using a DA 12V/6V or a DA 8V/4V in dual mode, connect input devices to the

Input A and Input B connectors.

• Connect video output: Connect one or more video output devices to the composite video or

S-video output connectors.

Step 4 — Set dual mode toggle switch (Dual EQ models only)

Set the toggle switch for dual or single mode as follows:

• Dual mode: Set the toggle switch down to Dual 1x4 for the DA 8V/4V or

Dual 1x6 for the DA 12V/6V, as shown at right. The DA functions as two

1-input, 8- or 12-output DAs.

• Single mode: Set the toggle switch up to 1x8 for the DA 8V/4V or 1x12

for the DA 12V/6V. The DA functions as a 1-input, 8- or 12-output DA

with active loop-through.

Step 5 — Connect monitor for loop-through (optional)

Connect a monitor to the Loop-Thru connector for passive loop-through, if desired.

For DA 12V/6V or DA 8V/4V Dual EQ models: If the DA will not be used in dual mode,

connect a monitor to the Input B connector for active loop-through, if desired.

Step 6 — Set termination toggle switch

For all models except DA 6A, DA 12V/6V, and DA 8V/4V Dual EQ:

• If a monitor is connected to the Loop-Thru connector, set the Termination

toggle switch up to high Z for passive loop-through, as shown at right.

• If no monitor is connected, set this switch down to 75 Ohm.

Step 7 — Connect audio inputs

Wire the captive screw or RCA input connectors to an audio source as shown below.

(Continued on reverse side)

LOOP-

THRU

Dual

1 x 6

1 x 12

INPUT B

INPUT A

LOOP-THRU

INPUT

75 Ohm

HIGH Z

L R

AUDIO

L R

AUDIO

Unbalanced Input

Tip

Sleeve

Tip

Sleeve

Balanced Input

Tip

Ring

Sleeve (s)

Tip

Ring

Tip (+)

Sleeve ( )

RCA connector

Setup Guide — DA AV EQ Series, cont’d

Extron USA - West

Headquarters

+800.633.9876

Inside USA / Canada Only

+1.714.491.1500

+1.714.491.1517 FAX

Extron USA - East

+800.633.9876

Inside USA / Canada Only

+1.919.863.1794

+1.919.863.1797 FAX

Extron Europe

+800.3987.6673

Inside Europe Only

+31.33.453.4040

+31.33.453.4050 FAX

Extron Asia

+800.7339.8766

Inside Asia Only

+65.6383.4400

+65.6383.4664 FAX

Extron Japan

+81.3.3511.7655

+81.3.3511.7656 FAX

Extron China

+400.883.1568

Inside China Only

+86.21.3760.1568

+86.21.3760.1566 FA X

Extron Middle East

+971.4.2991800

+971.4.2991880 FAX

www.extron.com

Step 8 — Connect audio outputs

Connect audio output devices to the RCA or captive screw audio Output connectors as shown

below (captive screw) and in Step 7 (RCA).

N For advanced audio settings, refer to chapter 2, “Installation and Rear

Panel,” of the DA AV EQ Series User’s Manual.

Step 9 — Power on

Connect power to the DA and to all input and output devices.

Step 10 — Adjust potentiometers for output cable lengths (if

needed)

• If using very short output cables, ensure that

the potentiometers are in the unity gain position;

that is, with the arrow on each potentiometer

pointing to the dot beside or above it. If the

potentiometers are already in the unity position

(shown in the example for inputs 1 and 2, at

right). Do not change them.

If the potentiometers are not in unity gain

position, rotate them, using a small screwdriver.

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

a. Send the Color Bars test signal to the input, using a video test generator such as the

Extron VTG 300.

b. Adjust the Gain potentiometers 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).

c. Adjust the EQ potentiometer

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).

d. Repeat steps b and c for the rest of

the outputs.

Application Diagram

The ﬁgure at right provides an example

of how a DA AV EQ series distribution

ampliﬁer may be connected.

68-977-50

Rev. A

03 10

CAUTION

For unbalanced audio, connect the sleeve(s)

to the ground contact. DO NOT connect the

sleeve(s) to the negative (–) contacts.

Tip

Ring

Tip

Ring

L R

Sleeve(s)

Do not tin the wires!

Tip

NO Ground Here

Sleeve(s)

NO Ground Here

Tip

L R

Balanced Audio Output Unbalanced Audio Output

DA 6SVA EQ

OUTPUTS

INPUT

LOOP-THRU

HIGH Z

75 Ohm

50/60 Hz

100-240V 0.2A

INPUT OUTPUTS

L R

Sound System

Projector

DVD

Monitor

(Loop-through)

DA 6SVA EQ

Audio Video

Distribution

Amplifier

HDTV

Plasma

Displays

VCR

6' Cables

800'

Cables

100'

Cables

1000'

Cables

EQGAIN

Y C

1/2

GAIN

EQGAIN

1/2

Composite Video

Models S-video Models

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