Belden Grass Valley VEA-1023 Скачать руководство пользователя страница 5

VEA-1023  Analog Video Auto Equalizing DA 

Guide to Installation and Operation

 

 

 

VEA-1023

 

Page 5 of 5 

 

Without (DENSITÉ)

 

controller

: place the jumper over pins 

3-4 "AUTO-CAL" of LK2. Insert the card. The LED is 
yellow. The calibration starts after 2 s, wait 
approximately 20 seconds for the LED to return green.  

 
Remove the card and place the jumper over pins 5-6 

"NORMAL" of LK2 and insert the card. 

 

With (DENSITÉ) controller

: place the jumper over pins 5-

6 "NORMAL" of LK2. Insert the card. Wait for the LED 
to become green. Enter the VEA-1023's menu by 
pressing the Select button on the card edge. With the 
chassis controller, from "STATUS" press [-], from 
"CALIBRATION" press [SELECT], from 
"AUTOCALIBRATION" press [SELECT], from "START" 
press [SELECT], then "AUTOCALIBRATING" will 
appear. The auto-calibration ends with either 
"SUCCESS" or "OUT OF RANGE". If out of range, 
there is no input signal or the correction needed is out 
of the VEA-1023's range. Check the input signal. 

 

With iControl

: Select auto-calibration and wait for the 

result. If the result is  "OUT OF RANGE”, there is no 
input signal or the correction needed is out of the VEA-
1023's range. Check the input signal. 

 

The VEA-1023 is now calibrated and ready for use. 

NOTE: The "GAIN ADJ" and "EQ ADJ" potentiometers are 
used to set the reference gain and equalization levels. 
These levels are used during the auto-calibration process. 
Hence, turning the potentiometers while in normal mode 
(jumper on pins 5-6 "NORMAL" of LK2) will have no 
immediate effect. The effect will be seen only after the next 
auto-calibration. If this happens, the First-time Calibration 
and Auto-calibration procedures described above must be 
redone. 
 
NOTE: if you push on the Select button during the 

calibration, until the led returns green, the final value 
will replace the factory default value. 

According to the video input signal, NTSC or PAL, the card 

will store two different factory default values: one for 
NTSC and one for PAL.     

 
Clamp Settings 
 

The degree of clamping applied to the input signal can be 
adjusted using the jumper LK1 (see the figure on page 4 
for its location) 

 

Jumper position 

 

Degree of clamping

 

 

1 – 2 

None 

 

3 – 4 

Hard 

 

5 – 6 

Soft

 

 

COMPLIANCE 

Radio Frequency Interference and Immunity 

 

This unit generates, uses, and can radiate radio frequency energy.  If the unit is not properly installed and used in accordance 
with this guide, it may cause interference with radio communications.  Operation with non-certified peripheral devices is likely to 
result in interference with radio and television reception.  This equipment has been tested and complies with the limits in 
accordance with the specifications in: 
 

FCC Part 15, Subpart B; 

CE EN50081-1:1992;  

CE EN50082-1:1992.

 

 
 

Grass Valley Technical Support 

For technical assistance, contact our international support center, at: 
1-800-547-8949 (US and Canada) or +1 530 478 4148. 

To obtain a local phone number for the support center nearest you, please consult the 

Contact Us

 section of Grass Valley’s 

website (www.grassvalley.com). 

An online form for e-mail contact is also available from the website. 

 

Corporate Head Office 

Grass Valley 
3499 Douglas-B.-Floreani 
St-Laurent, Quebec  H4S 2C6 
Canada 

 

Telephone:  +1 514 333 1772 
Fax: 

+1 514 333 9828 

www.grassvalley.com 

Содержание Grass Valley VEA-1023

Страница 1: ...signal format 50 MHz analog video bandwidth Equalization up to 300m 1000 Status LED and remote reporting FUNCTIONAL BLOCK DIAGRAM Video Outputs Video Input Microcontroller 1 2 3 4 5 6 7 8 Rem Control Select Status Gain Loop Equalization Signal Detection SPECIFICATIONS INPUT Video signal Any 1 Vpp nominal signal Return loss 40 dB up to 5 MHz Coupling DC or AC with Clamping Hard Soft None Level 0 3 ...

Страница 2: ...ill free up slots in the Densité frame Choose the SRP rear panel to get 4 outputs but no loop through or the SRP L panel to get three outputs plus the loop through Overview The DENSITÉ frame incorporates a central controller card located in the center of the frame which is equipped with an LCD display and a control panel The controller handles error reporting and local and remote control for all c...

Страница 3: ...o activate the STATUS led REAR PANEL ERROR Indicates an absence of the rear panel or an incompatibility between the module and the rear panel The STATUS led turns on flashing red AUTO CALIB Indicates automatic calibration is set jumper LK2 position 3 4 MANUAL CALIB Indicates manual calibration is set jumper LK2 position 1 2 OK 525 Indicates a valid 525 line incoming signal OK 625 Indicates a valid...

Страница 4: ...tabilize to the current gain and EQ adjustments The LED is yellow Using the measuring equipment to observe the result slowly turn the GAIN CAL potentiometer P3 situated on the card edge to adjust the white level to 100 Format 100 white level NTSC with setup 714 mV or 100 IRE NTSC no setup 714 mV or 100 IRE PAL 700 mV NOTE The output reacts slowly when the potentiometer is turned and it is constant...

Страница 5: ...ly after the next auto calibration If this happens the First time Calibration and Auto calibration procedures described above must be redone NOTE if you push on the Select button during the calibration until the led returns green the final value will replace the factory default value According to the video input signal NTSC or PAL the card will store two different factory default values one for NT...

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