Table of Contents
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1.
OVERVIEW.......................................................................................................................................... 1
2.
INSTALLATION................................................................................................................................... 2
3.
SPECIFICATIONS............................................................................................................................... 3
3.1. ANALOG VIDEO INPUT............................................................................................................. 3
3.2. ANALOG VIDEO OUTPUTS ...................................................................................................... 3
3.3. ELECTRICAL ............................................................................................................................. 4
3.4. PHYSICAL .................................................................................................................................. 4
4.
STATUS LEDS .................................................................................................................................... 5
5.
CIRCUIT DESCRIPTION..................................................................................................................... 6
6.
JUMPERS AND USER ADJUSTMENTS ............................................................................................ 7
BY THE GLOBAL FRAME STATUS.......................................................................................... 7
6.2. SELECTING THE INPUT TERMINATION.................................................................................. 7
6.3. SELECTING THE INPUT AC/DC COUPLING ........................................................................... 7
6.4. DC RESTORING (CLAMP) OPERATION .................................................................................. 8
6.5. GAIN ADJUSTMENT.................................................................................................................. 8
6.6. CABLE EQUALIZATION OPERATION ..................................................................................... 9
Figures
Figure 1-1: 7700ADA6-EQ-L Block Diagram ........................................................................................................1
Figure 2-1: 7700ADA7-EQ Rear Panel .................................................................................................................2
Figure 6-1: LED and Jumper Locations ................................................................................................................7
7700ADA6-EQ-L Equalizing Analog Video Distribution Amplifier with Loop Thru
TABLE OF CONTENTS
Revision 1.2
700 MultiFrame Manual
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Summary of Contents for evertz 7700ADA6-EQ-L
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Page 1: Table Of Contents
700 MultiFrame Manual 7700ADA6-EQ-L Equalizing Analog Video Distribution Amplifier with Loop Thru TABLE OF CONTENTS OVERVIEW............................1 INSTALLATION........................... 2 SPECIFICATIONS..........................3 3.1. ANALOG VIDEO INPUT......................3 3.2. ANALOG VIDEO OUTPUTS ...................... 3 3.3. ELECTRICAL ..........................4 3.4. PHYSICAL ..........................4 STATUS LEDS ............................ -
Page 2: Revision History
May 2010 Information contained in this manual is believed to be accurate and reliable. However, Evertz assumes no responsibility for the use thereof nor for the rights of third parties, which may be affected in any way by the use thereof. Any representations in this document concerning performance of Evertz products are for informational use only and are not warranties of future performance, either expressed or implied. -
Page 3: Overview
It can also distribute other pulses and signals that are less than 2Vp-p. The 7700ADA6-EQ-L occupies one card slot in the 3RU frame, which will hold up to 15 modules or the 1RU frame, which will hold up to three modules. -
Page 4: Installation
7700ADA6-EQ-L Equalizing Analog Video Distribution Amplifier with Loop Thru INSTALLATION The 7700ADA6-EQ-L comes with a companion rear panel overlay that can be placed over the rear panel BNC connectors to identify their function. For information on inserting the module into the frame see section 3 of the 7700FR chapter. -
Page 5: Specifications
7700 MultiFrame Manual 7700ADA6-EQ-L Equalizing Analog Video Distribution Amplifier with Loop Thru SPECIFICATIONS Note: At the time of printing, this product has only been qualified for use with standard definition signals. It, however, has been designed to work with high definition signals. -
Page 6: Electrical
7700 MultiFrame Manual 7700ADA6-EQ-L Equalizing Analog Video Distribution Amplifier with Loop Thru 3.3. ELECTRICAL Voltage: + 12VDC Power: 1.2 Watts EMI/RFI: Complies with FCC Part 15, Class A, EU EMC Directive 3.4. PHYSICAL Number of Slots: Page - 4 Revision 1.2... -
Page 7: Status Leds
7700ADA6-EQ-L Equalizing Analog Video Distribution Amplifier with Loop Thru STATUS LEDS The 7700ADA6-EQ-L has seven LED Status indicators on the front card edge to show operational status of the card at a glance. Figure 6-1 shows the location of the LEDs. -
Page 8: Circuit Description
7700 MultiFrame Manual 7700ADA6-EQ-L Equalizing Analog Video Distribution Amplifier with Loop Thru Circuit Description The input signal enters the board through a BNC with isolated ground so that balanced input processing may be done to remove any common mode hum that may have been added to the signal and ground shield. -
Page 9: Jumpers And User Adjustments
7700 MultiFrame Manual 7700ADA6-EQ-L Equalizing Analog Video Distribution Amplifier with Loop Thru JUMPERS AND USER ADJUSTMENTS MODULE STATUS SLOW FAST GAIN CLAMP EQ CTRL CLAMP CLAMP LEVEL SHIELD FLOAT HD PRES CABLE SD PRES VIDEO HIGH SYNC HIGH SYNC LOW... -
Page 10: Dc Restoring (Clamp) Operation
1125-line high definition video will be supported. The clamp position and size will successfully DC restore HD signals with bi-level sync generated by Evertz DACs for applications with computer monitors. Other manufacturers DACs may not have the same sync size and the DC restoring may not work with these signals. -
Page 11: Cable Equalization Operation
7700 MultiFrame Manual 7700ADA6-EQ-L Equalizing Analog Video Distribution Amplifier with Loop Thru 6.6. CABLE EQUALIZATION OPERATION With the cable equalizer EQCTRL POT set fully counter-clockwise, the cable equalizer will be set to the "zero length". As you turn the POT clockwise, more cable equalization is added. To set the POT to the correct position, perform the following calibration: 1. - Page 12 7700 MultiFrame Manual 7700ADA6-EQ-L Equalizing Analog Video Distribution Amplifier with Loop Thru This page left intentionally blank Page - 10 Revision 1.2...
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