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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: 22. may 2013.
Updated: 27. october 2014.
VA-212eq(m)
VA-412eq
VA-612eq
VA-812eq
Analog video distribution amplifier with
EQ
- standalone
- mini series
USER MANUAL FOR USE AND MAINTENANCE
Read the instructions before using the device.
Keep this manual for periodic usage.
Z10-3 edition 1
Code: 007.247
007.243
007.244
007.245
007.246
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Table of Contents
Summary of Contents for Sams VA-212eq(m)
- 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: 22. may 2013. Updated: 27. 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.
- Page 3 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 ......................12 ADJUSTMENT .......................13 REMARKS ........................14 ACCESS TO ADJUST TRIMMER ..................14 NOTES .........................14 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
- Frequency response: ...... ±0.1dB (50Hz do 8MHz) - Equalization range: ......0-300m, Belden 8281 - Clamping accuracy: ..........<±30mV BLOCK DIAGRAM DIFFERENTIAL LOOP ORDERING INFORMATION Power Code Name Description GAIN 007.243 VA-212eq Analog video DA 2x 1x2 Sams elektronik d.o.o. • sams@sams.rs • www.sams.rs... - Page 8 - Frequency response: ...... ±0.1dB (50Hz do 8MHz) - Equalization range: ......0-300m, Belden 8281 - Clamping accuracy: ..........<±30mV BLOCK DIAGRAM DIFFERENTIAL LOOP ORDERING INFORMATION Power Code Name Description GAIN 007.201 VA-212eqm Analog video DA 2x 1x2 - mini Sams elektronik d.o.o. • sams@sams.rs • www.sams.rs...
- Page 9 - Frequency response: ...... ±0.1dB (50Hz do 8MHz) - Equalization range: ......0-300m, Belden 8281 - Clamping accuracy: ..........<±30mV BLOCK DIAGRAM DIFFERENTIAL LOOP ORDERING INFORMATION Power Code Name Description GAIN 007.244 VA-412eq Analog video DA 4x 1x2 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 ORDERING INFORMATION Power Code Name Description GAIN 007.245 VA-612eq Analog video DA 6x 1x2 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 ORDERING INFORMATION Power Code Name Description GAIN 007.246 VA-812eq Analog video DA 8x 1x2 Sams elektronik d.o.o. • sams@sams.rs • www.sams.rs...
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Page 12: Installation
Allows correction of up to 300m with Belden 8281 cable. Made in Serbia VA-212eqm CODE: 007.247 USE ONLY WITH A 250V FUSE FUSE: 500mA VA-212eqm, rear side Sams elektronik d.o.o. • sams@sams.rs • www.sams.rs... -
Page 13: 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 14: 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. NOTES Sams elektronik d.o.o. • sams@sams.rs • www.sams.rs...
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