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Martin Audio – MA900 Amplifier
ENGLISH
1
CONTENTS (ENGLISH) Page No
1 CONTENTS MA900 USER GUIDE 1
2APPROVALS 2
3WARNINGS 2
3.1 EXPLANATION OF GRAPHICAL SYMBOLS 2
3.2 WARNING 2
3.3 CAUTION 2
3.4 IMPORTANT SAFETY INSTRUCTIONS 2
3.5 USER RESPONSIBILITY 3
3.5.1 LOUDSPEAKER DAMAGE 3
3.5.2 SPEAKER OUTPUT HAZARD 3
3.5.3 RADIO INTERFERENCE 3
4 INTRODUCTION 4
4.1 UNPACKING 4
4.2 FRONT PANEL 4
4.3 REAR PANEL 5
5 REAR PANEL FEATURES 5
5.1 GAIN SWITCH 5
5.1.1 THE DIP-SWITCH 6
5.1.2 SENSITIVITY 6
5.1.3 OPTIONS 6
5.2 LINK SWITCH 6
5.3 OPERATING MODES 6
5.3.1 STEREO MODE 6
5.3.2 NOTES FOR AMPLIFIER TESTING 7
5.3.3 TANDEM MODE 7
5.3.4 BRIDGE MONO MODE 7
5.3.5 BRIDGE MONO MODE FEATURES 7
6 INSTALLATION 8
6.1 MOUNTING 8
6.2 COOLING 8
6.3 OPERATING VOLTAGE 8
6.4 GROUNDING 9
6.5 POWER CONSUMPTION 9
6.5.1 CALCULATION 9
7 CONNECTIONS 10
7.1 INPUT CONNECTIONS 10
7.1.1 BALANCED INPUTS 10
7.1.2 UNBALANCED INPUTS 11
7.2 CONNECTING SPEAKERS 11
8 OPERATION 12
8.1 OPERATING PRECAUTIONS 12
8.2 POWERING UP – SOFT START 12
8.3 INPUT ATTENUATORS 12
8.4 INDICATORS 12
9 PROTECTION FEATURES 12
9.1 OUTPUT LIMITER 13
9.2 VHF PROTECTION 13
9.3 SHORT CIRCUIT PROTECTION 13
9.4 AC MAINS VOLTAGE PROTECTION 13
9.5 DC PROTECTION 13
10 MAINTENANCE 13
10.1 TROUBLESHOOTING 14
11 WARRANTY 15
12 SPECIFICATIONS MA900 16
All material © 2007. Martin Audio Ltd. Subject to change without notice.
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CONTENTS
GUIDES
Martin Audio – MA900 Amplifier
ENGLISH
2
2 APPROVALS
This equipment conforms to the requirements of the EMC directive 89/336/EEC, amended by
92/31/EEC and 93/68/EEC and the requirements of the Low Voltage Directive 73/23/EEC, amended
by 93/68/EEC.
Standard Applied EMC Emission EN55103-1, E3
EMC Immunity EN55103-2, E3, with S/N below 1% at normal operation level.
Electrical Safety EN60065, Class
3 WARNINGS
3.1 Explanation of graphical symbols
The lightning symbol within a triangle is
intended to alert the user to the presence of
lethal voltages within the amplifier that are of
sufficient magnitude to constitute a risk of electric
shock to humans.
The exclamation mark within a triangle is
intended to alert the user to the presence of
important operating and service instructions in the
literature accompanying the product.
3.2 WARNING
To reduce risk of fire or electric shock, do not expose
this apparatus to rain or moisture.
3.3
CAUTION
To reduce the risk of fire or electric shock, do not
remove screws. There are no user-serviceable parts
inside this amplifier. Refer servicing to qualified
personnel only.
3.4 Important Safety Instructions
Before using your amplifier, please read the operating instructions and the safety suggestions.
1. Keep this manual for future reference.
2. Do not operate the amplifier if liquid ingress is suspected.
3. Do not stand water or any other liquid on, or near the amplifier.
4. Do not use this amplifier near water. Do not operate the amplifier if wet or standing in liquid.
5. Clean only with dry cloth.
6. Do not block the air intake or exhaust ports. Always install the unit in accordance with the instructions.
7. Do not operate the amplifier on or near any source of heat, such as radiators, lighting dimmer racks, or
other apparatus that produce heat.
8. Always operate the unit with the chassis ground wire connected to the electrical safety earth. Do not
tamper with the electrical safety earth, it is provided for your safety. A grounding type plug is fitted; this
has two pins and a third grounding prong. If the plug provided does not fit your mains outlet, consult an
electrician or a competent person to replace the fitted plug. See page 9 section 6.3 for wiring colour code
9. Connect only to AC power outlets rated 230 - 240V (or 100 - 120 V), 50-60Hz.
10. Do not use this amplifier if the mains cable is damaged or frayed, particularly check where the mains
cable exits the amplifier and the mains plug. Protect the mains cable from being walked upon or rolled
over by heavy objects.
11. Only use accessories specified by the manufacturer.
12. The unit is intended to use in a 19î rack. Follow the mounting instructions. When racks with wheels are
used, use caution to avoid injury from tipping when in motion.
!
!
!
All material © 2007. Martin Audio Ltd. Subject to change without notice.
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CONTENTS
GUIDES
Produktspecifikationer
| Varumärke: | Martin Audio |
| Kategori: | ej kategoriserat |
| Modell: | MA900 |
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