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VA

elektronik

Sams elektronik d.o.o. • [email protected] • www.sams.rs

4

Distribution amplifiers

TECHNICAL SUPPORT AND SERVICE

Sams elektronik has made every effort to ensure that the equipment works in perfect condition. In 

the event that problems that occur can not be resolved, or if you have any questions regarding this 

equipment or information about other products produced from Sams elektronik, contact your local sales 

representative or call Sams elektronik directly through one of the ways listed below:

Sales: +381 11 3806 254

Technical support: +381 11 2402 212

Service: +381 11 4056 051

Email: 

Sales - [email protected]

Technical support and service - [email protected]

Web site: www.sams.rs

Address: 

SAMS ELEKTRONIK d.o.o.

48 Zivka Davidovica st

11050 Belgrade

Serbia

WARNING

TO AVOID ELECTRIC SHOCK, DO NOT OPEN COVER.

DEVICE MAINTENANCE REQUIRES PROFESSIONAL PERSON AUTHORIZED BY THE MANUFACTURER.
1.   Read all safety and operating instructions before using the device.

2.   Keep all safety and operating instructions.

3.   Follow the instructions from the user manual.

4.   Do not upgrade device, except in the case advised by the manufacturer.

5.   Do not use the device in the presence of water and / or moisture.

6.  Do not pour water or moisten the device with any type of liquid.

7.   Openings on device are provided for ventilation.

8.  Do not block air flow through the ventilation openings.

9.   This product is powered by AC ~ 230V ± 10%, 50Hz.

10.   This product is equipped with a three-wire cord with grounding.

11.  This 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 warranty void.

15.  Do not use the device in an environment that contains flammable or explosive materials in any 

physical state.

16.   Turn off the power corde before cleaning. Do not use liquid, aerosol or flammable cleaners. Use 

only a dry cloth.

17.   Servicing  is  performed  by  a  qualified  person.  Removing  the  cover  user  is  exposed  to  high 

voltages.

18.   Never use the device when the cover is open and the device is powered on.

19.  Do not expose to extreme high or low temperatures.

20.  Do not expose to sudden temperature changes.

21.   Call service in the following cases:

 

- The power cord or plug is damaged

 

- Liquid or foreign objects is inside the device

 

- The machine is exposed to water and moisture

 

- The device does not function according to specification

 

- The unit has been dropped or damaged

 

- The characteristics are significantly changed 

22.   Use only specified replacement parts. 

23.   Professional person authorized by the manufacturer must check the device after completion of 

service.

24.   Allow a free rack unit (1RU) above and below the device for ventilation or put rack fan under the 

device.

Pictures and drawings listed in this user manual are for information purposes only and may differ 

from the actual device. Design and specifications of the device may change without prior notice.

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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