Sams AA-20 User manual

AA-20(t)
AA-20p(t)
AA-20w(t)
Analog audio distribution amplier 1x20
- with transformer coupled input
- output connectors on front side
- version for wall
Copyright © 1999 - 2014 Sams elektronik d.o.o.
Published: 09. may 2012.
Updated: 22. october 2014.
Z10-3 edition 1
Code: 007.258
007.259
007.260
007.261
007.254
007.256
ENGLISH
Sams elektronik d.o.o.
48 Zivka Davidovica st.
11050 Belgrade
Serbia
Tel/Fax: [phone]
[phone]
[email protected]
www.sams.rs
USER MANUAL FOR USE AND MAINTENANCE
Read the instructions before using the device.
Keep this manual for periodic usage.

AA
elektronik
Sams elektronik d.o.o. • [email protected] • www.sams.rs
2
Distribution ampliers
Dear User,
Thank you very much for purchasing our product.
Your purchase is a wise investment. The equipment you have purchased is manufactured with great care from
high-quality parts and materials. It is designed to fully meet the needs according to specications, if properly
installed, used and maintained according to the enclosed instructions.
Any technical failure or deciency that occurs during the warranty period specied 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.
THIS DEVICE IS INTENDED FOR PROFESSIONAL USE.
WARRANTY STATEMENT
1. Product has declared characteristics. Within the warranty period, manufacturer ensures the removal of
technical failures, product defects or replacement of products if declared characteristics of the product are
changed.
2. If the goods are not delivered as specied with the contract, the consumer has the right to request from the
manufacturer / service provider to eliminate the lack of conformity, without charge, repair or replacement,
or to request an appropriate price reduction or terminate the contract.
3. Any repair or replacement must be made within a reasonable time without signicant inconvenience to
the consumer, taking into account the nature and the purpose for which the consumer has purchased the
product.
4. The consumer has the right to terminate the contract, if he can realize the right to repair or replacement,
or if the manufacturer / servicer has not completed repair or replacement within a reasonable time or if
the manufacturer / servicer did not perform repair or replacement without signicant 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 servicing the product is 6 years from the launch on the market.
The product purchased outside the territory of Serbia does not fall under the terms of this warranty, only to 1
year factory warranty from date of purchase.
TERMS OF WARRANTY
1. The warranty period begins on the date of sale referred in the invoice.
2. The buyer loses the right to warranty if the defect cause failure from not following the user manual
instructions, improper installation, comes to mechanical damage during use, repairs and modications by
unauthorized persons, installation of non-genuine spare parts, and if the buyer does not comply with all
warnings listed in the user manual.
3. The warranty is voided if the device is damaged during the disturbances from the environment, natural
disasters (oods, hail, etc.), suffered an electric shock or lightning strike.
IMPORTANT NOTES
1. Be sure to thoroughly read the user manual.
If you have any doubts about the instructions, contact the technical support of the manufacturer.
2. Before contacting for technical help, please make sure that are provided with all necessary conditions for
normal operation.
3. If the malfunction or defect in the device does not eliminate within a reasonable time from the date of
failure, the warranty period shall be extended for as many days as the unit is in service.
4. For all maintenance interventions shall solely be authorized services listed in this Warranty Certicate.
WARRANTY

AA Sams elektronik d.o.o. • [email protected] • www.sams.rs
elektronik
3
Distribution ampliers
IMPORTANT SAFEY
WARNING
TO AVOID RISK OF FIRE OR ELECTRIC SHOCK
DO NOT EXPOSE THE UNIT TO MOISTURE OR RAIN
The symbol “lightning in a triangle” is to alert the user to the presence 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 the device.
The power supply is protected with fuse against overload.

AA
elektronik
Sams elektronik d.o.o. • [email protected] • www.sams.rs
4
Distribution ampliers
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: [phone]
Technical support: [phone]
Service: [phone]
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 ow 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 ammable or explosive materials in any
physical state.
16. Turn off the power corde before cleaning. Do not use liquid, aerosol or ammable cleaners. Use
only a dry cloth.
17. Servicing is performed by a qualied 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 specication
- The unit has been dropped or damaged
- The characteristics are signicantly changed
22. Use only specied 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 specications of the device may change without prior notice.

AA Sams elektronik d.o.o. • [email protected] • www.sams.rs
elektronik
5
Distribution ampliers
UNPACKING AND INSTALLATION ....................................................................................6
MAINTENANCE ..............................................................................................................6
REMOVAL AND STORAGE ...............................................................................................6
DESCRIPTION ...............................................................................................................7
INSTALLATION OF AA-20 ...............................................................................................13
INSTALLATION OF AA-20p .............................................................................................13
INSTALLATION OF AA-20w .............................................................................................14
BLOCK DIAGRAM ..........................................................................................................15
ADJUSTMENT ...............................................................................................................16
ACCESS TO ADJUST TRIMMER .......................................................................................16
NOTES .........................................................................................................................16
PageDescription
TABLE OF CONTENTS

AA
elektronik
Sams elektronik d.o.o. • [email protected] • www.sams.rs
6
Distribution ampliers
UNPACKING AND INSTALLATION
REMOVAL AND STORAGE
MAINTENANCE
The box contains:
- Device
- Power corde
- User manual (optional)
Before use, check the contents of the box. For any deciency report to the seller or the manufacturer
of the product.
DEVICE IS INSULATED BY PROTECTIVE WRAP AND PACKED IN A CARDBOARD BOX.
DEVICE IS SENSITIVE TO SHAKES AND DROPS. HANDLE WITH CARE DURING TRANSPORT
AND ASSEMBLY.
Check if the product is damaged during transport.
1. Before dismantling the device, switch off the power, remove
the power cord and remove all other connectors.
2. Remove the four screws for fastening.
3. Remove the device from rack cabinet.
4. Wrap the machine in the foil to protect it from dust. Package
it in a box.
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 powered, the device is supplied with power cord.
- Use only power corde that comes with the device.
2. Device is mounted in a 19“ special-purpose rack cabinets designed for this type of device. Screw
device with four screws. Screws for fastening are not supplied with the device.
3. The device must be connected to ground. A device that is not connected to the grounding does
not function properly according to factory declarations and can cause adverse effects on users and
other equipment.
4. Strictly comply to all steps for proper connection of devices in the system.
Illustration - mounted device

AA Sams elektronik d.o.o. • [email protected] • www.sams.rs
elektronik
7
Distribution ampliers
DESCRIPTION
I
80
ANALOG AUDIO DISTRIBUTION AMPLIFIERS
• Sams elektronik d.o.o. • 48 Zivka Davidovica st. • 11050 Belgrade • Serbia • • [phone]; [phone] • [email protected] • www.sams.rs •
Series of audio distribution ampliers have excellent isolation from crosstalk between channels and it has provided
individual ampliers for each output. The device have possibility of installation of transformer at the entrance.
Distribution automatically adjusts for unbalanced output.
TECHNICAL SPECIFICATIONS
GENERAL INFORMATION
- Code: ....................................................................007.258
- Weight: ...................................................................... 2 Kg
- Type: .........................................................2RU rack frame
- Dimensions: ........................................ 2RU x 19” x 100mm
- Delivery includes: device, power corde, user manual
INPUT
- Number: ..........................................................................1
- Connector: .................................................................. XLR
- Impedance: ............................................ > 40KΩ, balanced
OUTPUT
- Number: ........................................................................ 20
- Connector: .................................................................. XLR
- Impedance: ....................................................600Ω or 66Ω
- Max output level: ..................................+ 24/16dBu (600Ω)
PERFORMANCE
- Gain: ............................................................ -6dB do +6dB
- Frequency response: ................. < ± 0.1dB (20Hz to 20KHz)
- S/N ratio: ....................... > 100dB unity gain 20Hz to 20KHz
- TDH: .............................................. 0.1% at 20Hz to 20KHz
- Inter channel cross talk: ............... > 90dB at 20Hz to 20KHz
ORDERING INFORMATION
Code Name Description
007.258 AA-20 1CH analog audio DA 1x20
Specications and designs are subject to change without notice
AA-20
1ch analog audio distribution amplier 1x20,
pro series
- High quality
- 20 outputs
- Low noise (100dB S/N)
- Gain range -6dB to +6dB
- Individual buffer outputs
- Available in 66Ω or 600Ω output impedance
- Transformer coupled input (optional)
POWER
- Voltage: ................................................. ~230V AC ± 10%
- Power: .......................................................................30W
- Frequency: ................................................................ 50Hz
- Overload protection: .............. front Mounted Circuit Breaker
TEMPERATURE
- Performance: .......................................................... 5-40°C
- Operating: .............................................................. 0-50°C
rear side
BLOCK DIAGRAM
IN
1
2
3
4
5
6
7
8
9
10
LED
Power
GND LIFT GAIN
CMR
11
12
13
14
15
16
17
18
19
20
OUT
LED
Power
GAIN
CMR
+
-
GND
Optional

AA
elektronik
Sams elektronik d.o.o. • [email protected] • www.sams.rs
8
Distribution ampliers
I
81
ANALOG AUDIO DISTRIBUTION AMPLIFIERS
• Sams elektronik d.o.o. • 48 Zivka Davidovica st. • 11050 Belgrade • Serbia • • [phone]; [phone] • [email protected] • www.sams.rs •
Series of audio distribution ampliers have excellent isolation from crosstalk between channels and it has provided
individual ampliers for each output. The device have transformer at the entrance. Distribution automatically adjusts
for unbalanced output.
TECHNICAL SPECIFICATIONS
GENERAL INFORMATION
- Code: ....................................................................007.259
- Weight: ...................................................................... 2 Kg
- Type: .........................................................2RU rack frame
- Dimensions: ........................................ 2RU x 19” x 100mm
- Delivery includes: ............. device, power corde, user manual
INPUT
- Number: ..........................................................................1
- Connector: .................................................................. XLR
- Impedance: ............................................ > 40KΩ, balanced
OUTPUT
- Number: ........................................................................ 20
- Connector: .................................................................. XLR
- Impedance: ....................................................600Ω or 66Ω
- Max output level: ..................................+ 24/16dBu (600Ω)
PERFORMANCE
- Gain: ............................................................ -6dB do +6dB
- Frequency response: ................. < ± 0.1dB (20Hz to 20KHz)
- S/N ratio: ....................... > 100dB unity gain 20Hz to 20KHz
- TDH: .............................................. 0.1% at 20Hz to 20KHz
- Inter channel cross talk: ............... > 90dB at 20Hz to 20KHz
ORDERING INFORMATION
Code Name Description
007.259 AA-20t 1CH audio DA (transformer) 1x20
Specications and designs are subject to change without notice
AA-20t
1ch analog audio distribution amplier with
transformer coupled input 1x20, pro series
- High quality
- 20 outputs
- Low noise (100dB S/N)
- Gain range -6dB to +6dB
- Individual buffer outputs
- Available in 66Ω or 600Ω output impedance
- Transformer coupled input
POWER
- Voltage: ................................................. ~230V AC ± 10%
- Power: .......................................................................30W
- Frequency: ................................................................ 50Hz
- Overload protection: .............. front Mounted Circuit Breaker
TEMPERATURE
- Performance: .......................................................... 5-40°C
- Operating: .............................................................. 0-50°C
rear side
BLOCK DIAGRAM
IN
1
2
3
4
5
6
7
8
9
10
LED
Power
GND LIFT GAIN
CMR
11
12
13
14
15
16
17
18
19
20
OUT
LED
Power
GAIN
CMR
+
-
GND
Optional

AA Sams elektronik d.o.o. • [email protected] • www.sams.rs
elektronik
9
Distribution ampliers
I
82
ANALOG AUDIO DISTRIBUTION AMPLIFIERS
• Sams elektronik d.o.o. • 48 Zivka Davidovica st. • 11050 Belgrade • Serbia • • [phone]; [phone] • [email protected] • www.sams.rs •
Series of audio distribution ampliers have excellent isolation from crosstalk between channels and it has provided
individual ampliers for each output. The device have possibility of installation of transformer at the entrance.
Distribution automatically adjusts for unbalanced output.
TECHNICAL SPECIFICATIONS
GENERAL INFORMATION
- Code: ....................................................................007.258
- Weight: ...................................................................... 2 Kg
- Type: .........................................................2RU rack frame
- Dimensions: ........................................ 2RU x 19” x 100mm
- Delivery includes: ............. device, power corde, user manual
INPUT
- Number: ..........................................................................1
- Connector: .................................................................. XLR
- Impedance: ............................................ > 40KΩ, balanced
OUTPUT
- Number: ........................................................................ 20
- Connector: .................................................................. XLR
- Impedance: ....................................................600Ω or 66Ω
- Max output level: ..................................+ 24/16dBu (600Ω)
PERFORMANCE
- Gain: ............................................................ -6dB do +6dB
- Frequency response: ................. < ± 0.1dB (20Hz to 20KHz)
- S/N ratio: ....................... > 100dB unity gain 20Hz to 20KHz
- TDH: .............................................. 0.1% at 20Hz to 20KHz
- Inter channel cross talk: ............... > 90dB at 20Hz to 20KHz
ORDERING INFORMATION
Code Name Description
007.260 AA-20p 1CH analog audio DA 1x20
Specications and designs are subject to change without notice
AA-20p
1ch analog audio distribution amplier 1x20,
pro series
- High quality
- 20 outputs
- Low noise (100dB S/N)
- Gain range -6dB to +6dB
- Individual buffer outputs
- Available in 66Ω or 600Ω output impedance
- Transformer coupled input (optional)
POWER
- Voltage: ................................................. ~230V AC ± 10%
- Power: .......................................................................30W
- Frequency: ................................................................ 50Hz
- Overload protection: .............. front Mounted Circuit Breaker
TEMPERATURE
- Performance: .......................................................... 5-40°C
- Operating: .............................................................. 0-50°C
rear side
front side
BLOCK DIAGRAM
IN
1
2
3
4
5
6
7
8
9
10
LED
Power
GND LIFT GAIN
CMR
11
12
13
14
15
16
17
18
19
20
OUT
LED
Power
GAIN
CMR
+
-
GND
Optional

AA
elektronik
Sams elektronik d.o.o. • [email protected] • www.sams.rs
10
Distribution ampliers
I
83
ANALOG AUDIO DISTRIBUTION AMPLIFIERS
• Sams elektronik d.o.o. • 48 Zivka Davidovica st. • 11050 Belgrade • Serbia • • [phone]; [phone] • [email protected] • www.sams.rs •
Series of audio distribution ampliers have excellent isolation from crosstalk between channels and it has provided
individual ampliers for each output. The device have transformer at the entrance. Distribution automatically adjusts
for unbalanced output.
TECHNICAL SPECIFICATIONS
GENERAL INFORMATION
- Code: ....................................................................007.261
- Weight: ...................................................................... 2 Kg
- Type: .........................................................2RU rack frame
- Dimensions: ........................................ 2RU x 19” x 100mm
- Delivery includes: ............. device, power corde, user manual
INPUT
- Number: ..........................................................................1
- Connector: .................................................................. XLR
- Impedance: ............................................ > 40KΩ, balanced
OUTPUT
- Number: ........................................................................ 20
- Connector: .................................................................. XLR
- Impedance: ....................................................600Ω or 66Ω
- Max output level: ..................................+ 24/16dBu (600Ω)
PERFORMANCE
- Gain: ............................................................ -6dB do +6dB
- Frequency response: ................. < ± 0.1dB (20Hz to 20KHz)
- S/N ratio: ....................... > 100dB unity gain 20Hz to 20KHz
- TDH: .............................................. 0.1% at 20Hz to 20KHz
- Inter channel cross talk: ............... > 90dB at 20Hz to 20KHz
ORDERING INFORMATION
Code Name Description
007.261 AA-20pt 1CH audio DA (transformer) 1x20
Specications and designs are subject to change without notice
AA-20pt
1ch analog audio distribution amplier with
transformer coupled input 1x20, pro series
- High quality
- 20 outputs
- Low noise (100dB S/N)
- Gain range -6dB to +6dB
- Individual buffer outputs
- Available in 66Ω or 600Ω output impedance
- Transformer coupled input
POWER
- Voltage: ................................................. ~230V AC ± 10%
- Power: .......................................................................30W
- Frequency: ................................................................ 50Hz
- Overload protection: .............. front Mounted Circuit Breaker
TEMPERATURE
- Performance: .......................................................... 5-40°C
- Operating: .............................................................. 0-50°C
rear side
front side
BLOCK DIAGRAM
IN
1
2
3
4
5
6
7
8
9
10
LED
Power
GND LIFT GAIN
CMR
11
12
13
14
15
16
17
18
19
20
OUT
LED
Power
GAIN
CMR
+
-
GND
Optional

AA Sams elektronik d.o.o. • [email protected] • www.sams.rs
elektronik
11
Distribution ampliers
I
84
ANALOG AUDIO DISTRIBUTION AMPLIFIERS
• Sams elektronik d.o.o. • 48 Zivka Davidovica st. • 11050 Belgrade • Serbia • • [phone]; [phone] • [email protected] • www.sams.rs •
Series of audio distribution ampliers have excellent isolation from crosstalk between channels and it has provided
individual ampliers for each output. The device have possibility of installation of transformer at the entrance.
Distribution automatically adjusts for unbalanced output. The device is mounted vertically on a wall.
TECHNICAL SPECIFICATIONS
GENERAL INFORMATION
- Code: ....................................................................007.254
- Weight: ...................................................................... 3 Kg
- Type: .........................................................2RU rack frame
- Dimensions: ........................................ 2RU x 19” x 100mm
- Delivery includes: ............. device, power corde, user manual
INPUT
- Number: ..........................................................................1
- Connector: .................................................................. XLR
- Impedance: ............................................ > 40KΩ, balanced
OUTPUT
- Number: ........................................................................ 20
- Connector: .................................................................. XLR
- Impedance: ....................................................600Ω or 66Ω
- Max output level: ..................................+ 24/16dBu (600Ω)
PERFORMANCE
- Gain: ............................................................ -6dB do +6dB
- Frequency response: ................. < ± 0.1dB (20Hz to 20KHz)
- S/N ratio: ....................... > 100dB unity gain 20Hz to 20KHz
- TDH: .............................................. 0.1% at 20Hz to 20KHz
- Inter channel cross talk: ............... > 90dB at 20Hz to 20KHz
ORDERING INFORMATION
Code Name Description
007.254 AA-20w 1CH analog audio DA 1x20
Specications and designs are subject to change without notice
AA-20w
1ch analog audio distribution amplier 1x20,
pro series for wall mount
- High quality
- 20 outputs
- Low noise (100dB S/N)
- Gain range -6dB to +6dB
- Individual buffer outputs
- Available in 66Ω or 600Ω output impedance
- Transformer coupled input (optional)
POWER
- Voltage: ................................................. ~230V AC ± 10%
- Power: .......................................................................30W
- Frequency: ................................................................ 50Hz
- Overload protection: .............. front Mounted Circuit Breaker
TEMPERATURE
- Performance: .......................................................... 5-40°C
- Operating: .............................................................. 0-50°C
rear side
front side
BLOCK DIAGRAM
IN
1
2
3
4
5
6
7
8
9
10
LED
Power
GND LIFT GAIN
CMR
11
12
13
14
15
16
17
18
19
20
OUT
LED
Power
GAIN
CMR
+
-
GND
Optional

AA
elektronik
Sams elektronik d.o.o. • [email protected] • www.sams.rs
12
Distribution ampliers
I
85
ANALOG AUDIO DISTRIBUTION AMPLIFIERS
• Sams elektronik d.o.o. • 48 Zivka Davidovica st. • 11050 Belgrade • Serbia • • [phone]; [phone] • [email protected] • www.sams.rs •
Series of audio distribution ampliers have excellent isolation from crosstalk between channels and it has provided
individual ampliers for each output. The device have installed a transformer at the entrance. Distribution automatically
adjusts for unbalanced output. The device is mounted vertically on a wall.
TECHNICAL SPECIFICATIONS
GENERAL INFORMATION
- Code: ....................................................................007.256
- Weight: ...................................................................... 3 Kg
- Type: .........................................................2RU rack frame
- Dimensions: ........................................ 2RU x 19” x 100mm
- Delivery includes: ............. device, power corde, user manual
INPUT
- Number: ..........................................................................1
- Connector: .................................................................. XLR
- Impedance: ............................................ > 40KΩ, balanced
OUTPUT
- Number: ........................................................................ 20
- Connector: .................................................................. XLR
- Impedance: ....................................................600Ω or 66Ω
- Max output level: ..................................+ 24/16dBu (600Ω)
PERFORMANCE
- Gain: ............................................................ -6dB do +6dB
- Frequency response: ................. < ± 0.1dB (20Hz to 20KHz)
- S/N ratio: ....................... > 100dB unity gain 20Hz to 20KHz
- TDH: .............................................. 0.1% at 20Hz to 20KHz
- Inter channel cross talk: ............... > 90dB at 20Hz to 20KHz
ORDERING INFORMATION
Code Name Description
007.256 AA-20wt 1CH audio DA (transformer) 1x20
Specications and designs are subject to change without notice
AA-20wt
1ch analog audio distribution amplier 1x20
with transformer coupled input, pro series for
wall mount
- High quality
- 20 outputs
- Low noise (100dB S/N)
- Gain range -6dB to +6dB
- Individual buffer outputs
- Available in 66Ω or 600Ω output impedance
- Transformer coupled input
POWER
- Voltage: ................................................. ~230V AC ± 10%
- Power: .......................................................................30W
- Frequency: ................................................................ 50Hz
- Overload protection: .............. front Mounted Circuit Breaker
TEMPERATURE
- Performance: .......................................................... 5-40°C
- Operating: .............................................................. 0-50°C
rear side
front side
BLOCK DIAGRAM
IN
1
2
3
4
5
6
7
8
9
10
LED
Power
GND LIFT GAIN
CMR
11
12
13
14
15
16
17
18
19
20
OUT
LED
Power
GAIN
CMR
+
-
GND
Optional

AA Sams elektronik d.o.o. • [email protected] • www.sams.rs
elektronik
13
Distribution ampliers
1
2
3
GAIN
1x20 balanced analog audio distribution amplifier with transformer coupled input AA-20pt
www.sams.rs
POWER
+
–
OUTPUT131211 14 15 16 17 19 2018
+
–
OUTPUT321 4 5 6 7 9 108
FUSE: 500mA
AC ~230V/50Hz
INPUT
GAIN
11-20
GAIN
1-10
www.sams.rs
Made in Serbia
AA-20pt
SN:
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION
RIZIK OD STRUJNOG UDARA
NE OTVARATI
UPOZORENJE
USE ONLY WITH A 250V FUSE
Turn on the device
by pressing the switch.
Connect the power cord.
The device works only on AC ~ 230 V / 50 Hz.
Connect all necessary connectors
before the unit is turned on.
Setting the output level
LEDs to indicate the presence of power
+ V: red LED
- V: green LED
Audio outputs
Audio input
1x20 balanced analog audio distribution amplifier
Power 1-10
AA-20
www.sams.rs
+–
Power 11-20
+–
1
2
GAIN
FUSE: 500mA
AC ~230V/50Hz
INPUT
GAIN
11-20
GAIN
1-10
www.sams.rs
Made in Serbia
AA-20
SN:
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION
RIZIK OD STRUJNOG UDARA
NE OTVARATI
UPOZORENJE
OUTPUT131211 14 15 16 17 19 2018
OUTPUT321 4 5 6 7 9 108
USE ONLY WITH A 250V FUSE
Connect the power cord.
The device works only on AC ~ 230 V / 50 Hz.
Connect all necessary connectors
before the unit is turned on.
Setting the output level
Audio outputs
Audio input
LEDs to indicate the presence of power
+ V: red LED
- V: green LED
INSTALLATION OF AA-20p
INSTALLATION OF AA-20

AA
elektronik
Sams elektronik d.o.o. • [email protected] • www.sams.rs
14
Distribution ampliers
1
2
GAIN
FUSE: 500mA
AC ~230V/50Hz
POWER
ON
INPUT
GAIN 1-10
GAIN 11-20
www.sams.rs
Made in Serbia
AA-20wt
CODE: 007.256
SN:
ELECTRICAL SHOCK HAZARD
DO NOT OPEN
CAUTION
RIZIK OD STRUJNOG UDARA
NE OTVARATI
DOK JE POD NAPONOM
UPOZORENJE
USE ONLY WITH A 250V FUSE
1x20 balanced analog audio
distribution amplifier with
transformer coupled input
www.sams.rs
OUTPUT 1-10321 4 5 6 7 9 108
+
–
OUTPUT 11-20131211 14 15 16 17 19 2018
+
–
AA-20wt
3
Turn on the device
by pressing the switch.
Connect the power cord.
The device works only on AC ~ 230 V / 50 Hz.
Connect all necessary connectors
before the unit is turned on.
Setting the output level
LEDs to indicate the presence of power
+ V: red LED
- V: green LED
Audio outputs
Audio input
INSTALLATION OF AA-20w
Mount the device on a vertical surface

AA Sams elektronik d.o.o. • [email protected] • www.sams.rs
elektronik
15
Distribution ampliers
BLOCK DIAGRAM

AA
elektronik
Sams elektronik d.o.o. • [email protected] • www.sams.rs
16
Distribution ampliers
Audio distribution is factory set to 0dB input / 0dB output. For adjust is used 1m cable.
To adjust the distribution in the system, it is necessary to have:
- Signal generator (a signal which is brought to the input of the distribution)
- Adequate measuring instrument (output signal of the distribution)
- A small flathead screwdriver (for adjusting)
Put a thin screwdriver through an opening in the
panel.
It can be adjusted by turning the trimmer.
ACCESS TO ADJUST TRIMMER
ADJUSTMENT
NOTES