Sams ASA-100 Instruction manual

ASA-100
Analog audio summa amplier
- for SRU rack frame
Copyright © 1999 - 2014 Sams elektronik d.o.o.
Published: 15. april 2013.
Updated: 11. august 2014.
Z10-3 edition 1
Code: 001.205
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.

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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

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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 FOR SRU RACK FRAME
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.
DECLARATION OF CONFORMITY for product:
SRU RACK FRAME WITH POWER SUPPLY (PSU-212) WITH CORRESPONDING MODULES AND
BACK CONNECTORS
The product is designed and manufactured according to the following regulations:
- Electromagnetic Compatibility Directive (EMC)
- Low Voltage Directive (ELV)
Documentation conrming statements can be obtained on written request for review.

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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.

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UNPACKING AND INSTALLATION ....................................................................................6
MAINTENANCE ..............................................................................................................6
REMOVAL AND STORAGE ...............................................................................................6
DESCRIPTION ...............................................................................................................7
MODULE INSTALATION IN SRU RACK FRAMES ................................................................8
BACK CONNECTORS ......................................................................................................10
SRU REAR SIDE ............................................................................................................11
BLOCK DIAGRAM ..........................................................................................................12
PCB WITH THE LAYOUT OF ELEMENTS ...........................................................................12
NOTES .........................................................................................................................13
PageDescription
TABLE OF CONTENTS

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UNPACKING AND INSTALLATION
REMOVAL AND STORAGE
MAINTENANCE
The box contains:
- Module
- Back connector (optional)
- Protective pad for SRU rack frame (optional)
- M2.5x6/7985 screw (optional)
- SRU rack frame (optional)
- Power corde for SRU rack frame (optional)
- 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. - If the device is not supplied with SRU rack frame, remove the protective wrap from the device. If
the device is supplied with SRU rack frame, 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. SRU rack frame 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.
5. On the SRU rack frame are 3 types of mass (CHASSIS, MAINS and 0V). The factory, all three are
connected. According to the user’s needs, the masses can be switched over between them.
Illustration - mounted device

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DESCRIPTION
I
15
ANALOG AUDIO DISTRIBUTION AMPLIFIERS
• Sams elektronik d.o.o. • 48 Zivka Davidovica st. • 11050 Belgrade • Serbia • • [phone]; [phone] • [email protected] • www.sams.rs •
The ASA-100 is designed to combine two stereo signals into one mono in adjustable aspects. This device is useful also
as stereo amplier. Ideal position of ASA-100 is before transmitter antenna. The modules mount into the SRU-112
frames 3RU, 12 module capacity.
TECHNICAL SPECIFICATIONS
GENERAL INFORMATION
- Code: ....................................................................001.205
- Weight: ................................................................... 0.4 Kg
- Type: .....................................................................module
- Dimensions: ..................................................100 x 160mm
- Required: ....................... SRU rack frame, back panel CA-22
- Delivery includes: . device, user manual, rear panel (optional)
INPUT
- Number: .......................................2, electronically balanced
- Impedance: ................................................>40K, balanced
- Common mode rejection: .............................>80dB at 50Hz
OUTPUT
- Number: .......................................2, electronically balanced
- Impedance: ....................................................60Ω or 600Ω
- Output to output isolation: ............. >70dB at 20Hz to 20KHz
- 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
- Inter channel cross talk: ................ >90dB at 20Hz to 20KHz
POWER
- Voltage: ........................................................... 2 x 12V AC
- Power: .........................................................................7W
TEMPERATURE
- Performance: .......................................................... 5-40°C
- Operating: .............................................................. 0-50°C BLOCK DIAGRAM
BACK CONNECTOR CA-22
Specications and designs are subject to change without notice
ASA-100
Audio summa amplier
- High quality
- Jumper selectable Stereo or Summa Mode
- Stereo analog input and output
ORDERING INFORMATION
Code Name Description
001.205 ASA-100 Audio summa amplier
001.504 CA-22 Back connector
001.600 SRU-312 Rack frame for 12 modules
001.601 SRU-310 Rack frame for 10 modules
001.605 SRU-306 Rack frame for 6 modules
IN
CH1
IN
CH2
600R
SUM
CH1 ON
CH2 ON
600R
ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
IN
CH1
G – +
IN
CH2
G – +
OUT
CH1
G – +
OUT
CH2
G – +

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- On the front side of rack frame, unscrew the screws.
- Open the door.
MODULE INSTALATION IN SRU RACK FRAMES
Make sure that the module is set to the correct place in relation to the back connector.
BEFORE INSTALLING OR REMOVING THE MODULE FROM SRU, ALWAYS TURN OFF THE
POWER
Lock module with lever to the position.
NOTE: NEVER PLACE MODULE TO PLACE OF THE POWER SUPPLY MODULE!
The label that indicates the place for power supply module
FOR
POWER SUPPLY
ONLY
WARNING!

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1. The module set between the guides (not metal plate).
2. Locking lever mount behind the groove.
3. Push the lever to lock in an upright position. The module is locked.
1. 2.
3.

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ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
ASA-100
IN
CH1
G – +
IN
CH2
G – +
OUT
CH1
G – +
OUT
CH2
G – +
INPUT CH 1
OUTPUT CH 1
Fix the back connector with
M2.5 screw.
Fix the back connector with
M2.5 screw.
INPUT CH 2
OUTPUT CH 2
BACK CONNECTORS
Be sure to install a protective pad before installing the back connectors.

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Place the back connector. Fix the back connector with M2.5 screw.
1. Mass
2. Power switch
3. The socket
4. Connections for back connectors
Rear side view
SRU REAR SIDE
DO NOT INSERT SHARP METAL OBJECTS OR FINGERS INTO THE SPACE BEHIND
THE POWER PANEL!
THE SIGN “LIGHTNING IN A TRIANGLE” IS TO ALERT THE USER TO THE
PRESENCE OF LIFE-THREATENING HIGH POWER.
LABEL IS PLACED NEXT TO POWER PANEL.
HIGH VOLTAGE!
DANGER!

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BLOCK DIAGRAM
1) GAIN CH1
2) GAIN CH2
3) PASS CH1
4) SUMMA CH1+CH2
5) PASS CH2
6) RESISTANCE 600Ω
7) POWER LED INDICATOR +V
8) POWER LED INDICATOR -V
(samo na AA-101t)
2
8
543 6
1
7
PCB WITH THE LAYOUT OF ELEMENTS

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NOTES

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