Top/Side Panel Features And Adjustments - Extron electronics CVEQ1 User Manual

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Installation, Setup, Operation, cont'd

Top/Side Panel Features and Adjustments

1
2
GAIN EQUALIZE
CVEQ1
Top Panel
Adjust the gain and
equalization before
installing the CVEQ1 AAP
or CVEQ1 WM into a wall
or furniture, as the gain and
equalization adjustment
controls will be inaccessible
after installation.
1
Gain adjustment control —
This control adjusts picture
brightness by compensating
for signal amplitude loss
caused by cable resistance. To
adjust the output gain, view
the display while using a
small, flat-blade screwdriver
to rotate this two-turn
potentiometer. This control
produces a gain adjustment ranging from
-6 dB to +6 dB. Select the setting that gives the
best picture brightness.
You can judge the adjustment visually by
looking at the display. For a more precise
setting, you can use an oscilloscope or a
waveform monitor connected to the far
end of the output cable, and adjust the
gain so that the level at the waveform
monitor is 100 IRE.
2
Equalization adjustment control
(Equalize) — To adjust the output level
and peaking to get a sharp picture,
rotate this two-turn potentiometer. This
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CVEQ1 Series • Installation, Setup, Operation
2-8
CAMBOARD Electronics
1 2
CVEQ1 AAP
Top Panel
1
2
CVEQ1 WM
Side Panel
Gain
Equalize
V ID
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IN P
U T
A U
D IO
IN P
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C V
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Fax 07131 911203
adjustment changes the level and peaking of the output signal
to compensate for capacitance caused by up to 1000 feet
(300 meters) of Extron RG6 cable.
Use a small, flat-blade screwdriver to rotate this control.
View the display and select the setting that gives the sharpest
picture. For a more precise setting you can use an oscilloscope
or a waveform monitor connected to the far end of the output
cable, and adjust the equalization so that the color burst ranges
between -20 IRE and +20 IRE.
CVEQ1 Application.eps
The Equalize control is a potentiometer with a soft
mechanical stop at the high and the low end. If you
have reached the high or low end of the adjustment, the
potentiometer makes a clicking sound as you turn it, and
no change is apparent on the display.
VCR
Stereo Audio
VIDEO INPUT AUDIO INPUT
L R
CVEQ1
Front
AUDIO OUTPUT VIDEO OUTPUT POWER
L R
Rear
Stereo Audio
Large Screen
Projection TV
A typical CVEQ1 application
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CVEQ1 Series • Installation, Setup, Operation 2-9