Gain And Equalization Controls; Setting Up Potentiometers For Cable Lengths; Settings For Short Cables - Extron electronics DA 6V EQ User Manual

Front Panel Features and Operation

Gain and Equalization Controls

Gain and equalization (EQ) can be adjusted from the front panel
of all DA AV EQ series products except the DA 6A and
DA 3AV RCA. On S-video models, you can adjust luma (Y) gain
and equalization, and chroma (C) gain. On composite video
models, you can adjust Gain and EQ. Adjustments are made for
each pair of outputs.
The front panels of all the DA AV EQ series products feature
Gain and EQ potentiometers (pots), which enable you to make
the gain and equalization adjustments. Each pot has a white dot
either above it (composite and Y gain) or to the lower left of it
(EQ and C gain). These dots indicate 0 dB unity.
Use an Extron Tweeker or a small screwdriver to rotate these
pots clockwise to increase gain or equalization, or
counterclockwise to decrease.
The DA AV EQ products have one EQ pot and one or two Gain
pots for each pair of outputs. Therefore, gain and equalization
can be adjusted only for a pair of outputs at a time. For
example, if you adjust the equalization pot for output 1, output
2 is adjusted by the same amount, at the same time.
This means that you should have cables of the same
length for both outputs of a pair.
• DA 6V EQ, DA 6AV EQ, DA 6AV EQ RCA,
DA 8V/4V Dual EQ, and DA 12V/6V Dual EQ: The front
panels of these models feature one Gain and one EQ pot
for each pair of outputs. The illustration below shows
the Gain and EQ pots for outputs 1 and 2.
0 dB Indicator Dot
Gain Pot
3-4
DA AV EQ Series • Front Panel Features and Operation
Output Pair
1/2
GAIN EQ
Equalization (EQ) Pot
Arrow
Arrow
0 dB Indicator Dot
• DA 6SV EQ, DA 6SVA EQ, and DA 6SVA RCA EQ: The
front panels of these models each contain one Y Gain, one
Y EQ, and one C Gain potentiometer for each pair of
outputs. The illustration below shows the Y Gain, EQ,
and C Gain potentiometers for outputs 1 and 2.
GAIN
0 dB Indicator Dot
Luma (Y) Gain Pot
Arrow
Equalization (EQ) Pot
(for Luma [Y])

Setting Up Potentiometers for Cable Lengths

To set up your DA AV EQ, you may need to adjust the
potentiometers for the cable lengths of the outputs. You can
make the necessary adjustments using an Extron Tweeker (small
screwdriver).

Settings for short cables

At the factory, the DA AV EQ pots are set precisely to the unity
gain position (with the arrow on the pot pointing to the dot
beside or above it). If you are using very short output cables, do
not turn these pots; leave them at the factory default setting. If
the pots have already been turned, reset them to the default
position. The illustration below shows outputs 1 and 2 set to
the unity gain position.
1/2
GAIN EQ
Composite Video Models
Potentiometers for outputs 1/2 at unity gain
settings
DA AV EQ Series • Front Panel Features and Operation
Output Pair
1/2
Y C
EQ GAIN
0 dB Indicator Dot
Chroma Gain Pot
Arrow
1/2
Y C
GAIN EQ GAIN
S-video Models
3-5