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VA

elektronik

Sams elektronik d.o.o. • sams@sams.rs • www.sams.rs

14

Distribution amplifiers

Put  a  thin  screwdriver  through  an  opening  in  the 

panel.

It can be adjusted by turning the trimmer.

ACCESS TO ADJUST TRIMMER

REMARKS

Loop must be closed with 75Ω terminator if not used.

Loop is used to pass incoming signal back into the system without adjustment. All corrections levels and 

EQ of signal relating only on outputs.

Loop is not used

Loop is used

75Ω terminator

NOTES

Summary of Contents for VA-212eq(m)

Page 1: ...d 22 may 2013 Updated 27 october 2014 Z10 3 edition 1 Code 007 247 007 243 007 244 007 245 007 246 ENGLISH Sams elektronik d o o 48 Zivka Davidovica st 11050 Belgrade Serbia Tel Fax 381 11 3806 253 381 11 2402 212 sams sams rs www sams rs USER MANUAL FOR USE AND MAINTENANCE Read the instructions before using the device Keep this manual for periodic usage ...

Page 2: ...ufacturer servicer has not completed repair or replacement within a reasonable time or if the manufacturer servicer did not perform repair or replacement without significant inconvenience to the consumer 5 The consumer may not terminate the contract if the lack of conformity of the product is negligible 6 The product will function properly when used in accordance with the user manual 7 Period of s...

Page 3: ...of high voltage In poor conditions the user may be exposed to shock The symbol exclamation mark in a triangle is to alert the user to comply by the terms of use in user s manual which is supplied with the device SAFETY WARNINGS ELECTRICAL SHOCK HAZARD DO N OT O PEN CAUTION RIZIK OD S TRUJNOG UDARA NE O TVARATI DOK JE P OD N APONOM UPOZORENJE CLASS I DEVICE Grounding is connected to the chassis of ...

Page 4: ... device is equipped with a protective fuse in the power outlet Do not bypass fuse 12 Do not replace the fuse Replacement can be made by a person authorized by the manufacturer 13 Do not bend the power cord so that it can be damaged 14 Connect connectors as in the enclosed instructions Deviations from the allowed values predicted for the inputs and outputs of the device can cause severe damage and ...

Page 5: ...www sams rs elektronik 5 Distribution amplifiers UNPACKING AND INSTALLATION 6 MAINTENANCE 6 REMOVAL AND STORAGE 6 DESCRIPTION 7 INSTALLATION 12 ADJUSTMENT 13 REMARKS 14 ACCESS TO ADJUST TRIMMER 14 NOTES 14 Page Description TABLE OF CONTENTS ...

Page 6: ...5 The device must be stored in a room without moisture The system maintains only person authorized by Sams elektronik doo Any voluntarily opening device upgrading or servicing is strictly prohibited and is subject to warranty void and the possibility of injury Places for fastening PROCEDURES FOR SAFE USE OF THE DEVICE 1 Remove the protective wrap from the chassis For devices that are AC 230V 50Hz ...

Page 7: ...1V p p nominal Input Impedance 75Ω loop trough differential OUTPUT Number 2 BNC Level 1V p p nominal Impedance 75Ω PERFORMANCE Gain 3dB do 3dB Gain stability 0 1dB Frequency response 0 1dB 50Hz do 8MHz Equalization range 0 300m Belden 8281 Clamping accuracy 30mV BLOCK DIAGRAM ORDERING INFORMATION Code Name Description 007 243 VA 212eq Analog video DA 2x 1x2 Specifications and designs are subject t...

Page 8: ...minal Input Impedance 75Ω loop trough differential OUTPUT Number 2 BNC Level 1V p p nominal Impedance 75Ω PERFORMANCE Gain 3dB do 3dB Gain stability 0 1dB Frequency response 0 1dB 50Hz do 8MHz Equalization range 0 300m Belden 8281 Clamping accuracy 30mV BLOCK DIAGRAM ORDERING INFORMATION Code Name Description 007 201 VA 212eqm Analog video DA 2x 1x2 mini Specifications and designs are subject to c...

Page 9: ... nominal Input Impedance 75Ω loop trough differential OUTPUT Number 2 BNC Level 1V p p nominal Impedance 75Ω PERFORMANCE Gain 3dB do 3dB Gain stability 0 1dB Frequency response 0 1dB 50Hz do 8MHz Equalization range 0 300m Belden 8281 Clamping accuracy 30mV BLOCK DIAGRAM ORDERING INFORMATION Code Name Description 007 244 VA 412eq Analog video DA 4x 1x2 Specifications and designs are subject to chan...

Page 10: ... nominal Input Impedance 75Ω loop trough differential OUTPUT Number 2 BNC Level 1V p p nominal Impedance 75Ω PERFORMANCE Gain 3dB do 3dB Gain stability 0 1dB Frequency response 0 1dB 50Hz do 8MHz Equalization range 0 300m Belden 8281 Clamping accuracy 30mV BLOCK DIAGRAM ORDERING INFORMATION Code Name Description 007 245 VA 612eq Analog video DA 6x 1x2 Specifications and designs are subject to chan...

Page 11: ... nominal Input Impedance 75Ω loop trough differential OUTPUT Number 2 BNC Level 1V p p nominal Impedance 75Ω PERFORMANCE Gain 3dB do 3dB Gain stability 0 1dB Frequency response 0 1dB 50Hz do 8MHz Equalization range 0 300m Belden 8281 Clamping accuracy 30mV BLOCK DIAGRAM ORDERING INFORMATION Code Name Description 007 246 VA 812eq Analog video DA 8x 1x2 Specifications and designs are subject to chan...

Page 12: ...TI DOK JE POD NAPONOM UPOZORENJE USE ONLY WITH A 250V FUSE 8x 1x2 CVBS distribution amplifier with EQ VA 812eq www sams rs GAIN EQ 1 GAIN EQ 2 POWER GAIN EQ 3 GAIN EQ 4 POWER GAIN EQ 5 GAIN EQ 6 POWER GAIN EQ 7 GAIN EQ 8 POWER GAIN EQ 1 GAIN EQ 2 POWER FUSE 500mA AC 230V 50Hz www sams rs Made in Serbia VA 212eqm CODE 007 247 SN RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION RIZIK OD STRUJNOG UDARA NE ...

Page 13: ...art test 75 Color bar Using a measuring instrument note whether there is a deviation Slowly turn the GAIN potentiometer to adjust the signal level at 1V p p 2 EQ is the process of adjusting the balance between the levels of different frequencies in the video signal Due to the length of the cable it will weaken the level of higher frequencies Start Multiburst test Using a measuring instrument note ...

Page 14: ...in the panel It can be adjusted by turning the trimmer ACCESS TO ADJUST TRIMMER REMARKS Loop must be closed with 75Ω terminator if not used Loop is used to pass incoming signal back into the system without adjustment All corrections levels and EQ of signal relating only on outputs Loop is not used Loop is used 75Ω terminator NOTES ...

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