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ENGLISH
Copyright © 1999 - 2014 Sams elektronik d.o.o.
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
Published: 11. june 2012.
Updated: 29. october 2014.
VA
16eql/26eql/36eql
VA
14eql/24eql/34eql
Analog video distribution amplifier
1x6 / 1x4
- standalone
USER MANUAL FOR USE AND MAINTENANCE
Read the instructions before using the device.
Keep this manual for periodic usage.
Z10-3 edition 1
Code: 007.165
007.166
007.167
007.162
007.163
007.164
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Summary of Contents for Sams VA-16eql
- Page 1 Keep this manual for periodic usage. 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 Copyright © 1999 - 2014 Sams elektronik d.o.o. Published: 11. june 2012. Updated: 29. october 2014.
- Page 2 Any technical failure or deficiency that occurs during the warranty period specified on the invoice of the purchased equipment will be inspected and serviced by Sams elektronik doo or an authorized service center of the manufacturer, with the conditions set out in the warranty statement.
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Page 3: Safety Warnings
CLASS I DEVICE Grounding is connected to the chassis of the device. The power supply is protected with fuse against overload. Sams elektronik d.o.o. • sams@sams.rs • www.sams.rs... - Page 4 Design and specifications of the device may change without prior notice. 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...
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Page 5: Table Of Contents
Distribution amplifiers elektronik TABLE OF CONTENTS Description Page UNPACKING AND INSTALLATION ..................6 MAINTENANCE ......................6 REMOVAL AND STORAGE ....................6 DESCRIPTION .......................7 INSTALLATION ......................13 ADJUSTMENT .......................14 REMARKS ........................15 ACCESS TO ADJUST TRIMMER ..................15 NOTES .........................16 Sams elektronik d.o.o. • sams@sams.rs • www.sams.rs... -
Page 6: Unpacking And Installation
Strictly comply to all steps for proper connection of devices in the system. Places for fastening MAINTENANCE 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. -
Page 7: Description
Gain range ±3dB 6 outputs The VA-16eql is 1RU device with modules. It will provides hum removal and equalization for long cable runs of up to 300m. The VA-36eql features 30MHz bandwidth, differential input and variable equalization for up to 300m (1000ft) of Belden 8281 coaxial cable. -
Page 8: Ordering Information
- Frequency response: ...... ±0.1dB (50Hz do 8MHz) BLOCK DIAGRAM - Equalization range: ......0-300m, Belden 8281 - Clamping accuracy: ..........<±30mV DIFFERENTIAL LOOP Signal indication ORDERING INFORMATION Power GAIN Code Name Description 007.163 VA-26eql Analog video DA 2x 1x6 Sams elektronik d.o.o. • sams@sams.rs • www.sams.rs... - Page 9 - Frequency response: ...... ±0.1dB (50Hz do 8MHz) BLOCK DIAGRAM - Equalization range: ......0-300m, Belden 8281 - Clamping accuracy: ..........<±30mV DIFFERENTIAL LOOP Signal indication ORDERING INFORMATION Power GAIN Code Name Description 007.164 VA-36eql Analog video DA 3x 1x6 Sams elektronik d.o.o. • sams@sams.rs • www.sams.rs...
- Page 10 - Frequency response: ...... ±0.1dB (50Hz do 8MHz) - Equalization range: ......0-300m, Belden 8281 - Clamping accuracy: ..........<±30mV BLOCK DIAGRAM DIFFERENTIAL LOOP Signal indication ORDERING INFORMATION Power Code Name Description GAIN 007.165 VA-14eql Analog video DA 1x4 Sams elektronik d.o.o. • sams@sams.rs • www.sams.rs...
- Page 11 - Frequency response: ...... ±0.1dB (50Hz do 8MHz) - Equalization range: ......0-300m, Belden 8281 - Clamping accuracy: ..........<±30mV BLOCK DIAGRAM DIFFERENTIAL LOOP Signal indication ORDERING INFORMATION Power Code Name Description GAIN 007.166 VA-24eql Analog video DA 2x 1x4 Sams elektronik d.o.o. • sams@sams.rs • www.sams.rs...
- Page 12 - Frequency response: ...... ±0.1dB (50Hz do 8MHz) - Equalization range: ......0-300m, Belden 8281 - Clamping accuracy: ..........<±30mV BLOCK DIAGRAM DIFFERENTIAL LOOP Signal indication ORDERING INFORMATION Power Code Name Description GAIN 007.167 VA-34eql Analog video DA 3x 1x4 Sams elektronik d.o.o. • sams@sams.rs • www.sams.rs...
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Page 13: Installation
GAIN - Trimer to correct the overall level of video signals. Allows gain correction of ± 3dB. EQ - Electronic compensation process of loss of high frequencies that occur on long cables. Allows correction of up to 300m with Belden 8281 cable. Sams elektronik d.o.o. • sams@sams.rs • www.sams.rs... -
Page 14: Adjustment
EQ potentiometer to ensure consistency across all frequency amplification. Test 1: 75% Color Bar for GAIN Test 1: 75% Color Bar Composite Test 2: 60% Multiburst for EQ CORRECT EQ FREQUENCY ATTENUATION Test 2: 60% Multiburst Composite Sams elektronik d.o.o. • sams@sams.rs • www.sams.rs... -
Page 15: Remarks
EQ of signal relating only on outputs. Loop is not used Loop is used 75Ω terminator ACCESS TO ADJUST TRIMMER Put a thin screwdriver through an opening in the panel. It can be adjusted by turning the trimmer. Sams elektronik d.o.o. • sams@sams.rs • www.sams.rs... -
Page 16: Notes
Distribution amplifiers elektronik NOTES Sams elektronik d.o.o. • sams@sams.rs • www.sams.rs...
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