SR 40 SINGLE - Wireless Microphone System AKG - Free user manual and instructions

USER MANUAL SR 40 SINGLE AKG

Please read the manual before using the equipment!

MODE D'EMPLOI p.21

1 Safety and Environment 13

1.1 Safety 13
1.2 Environment 13

2 Description. 14

2.1 Introduction 14
2.2 Packing List 14
2.3 Optional Accessories 14
2.4 SR 40 SINGLE Receiver 14

2.4.1 Front Panel 14
2.4.2 Rear Pane 15
2.4.3 Automatic Squelch 15

3 Setting Up 16

3.1 Placing the Receiver 13
3.2 Connecting the Receiver to a Balanced Input 16
3.3 Connecting the Receiver to an Unbalanced Input 16
3.4 Connecting the Receiver to Power 17
3.5 Before the Soundcheck 17

4 Cleaning. 18
5 Troubleshooting 19
6 Specifications 20

FCC Statement

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and the receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.

Shielded cables and I/O cords must be used for this equipment to comply with the relevant FCC regulations. Changes or modifications not expressly approved in writing by AKG Acoustics may void the user's authority to operate this equipment.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

1 Safety and Environment

1.1 Safety

1. Do not spill any liquids on the equipment and do not drop any objects through the ventilation slots in the equipment.
2. The equipment may be used in dry rooms only.
3. The equipment may be opened, serviced, and repaired by authorized personnel only. The equipment contains no user-serviceable parts.
4. Before connecting the equipment to power, check that the AC mains voltage stated on the supplied AC adapter is identical to the AC mains voltage available where you will use the equipment.
5. Operate the equipment with the supplied AC adapter with a 12-VDC output. Using adapters with a different output voltage or current type may cause serious damage to the unit.
6. If any solid object or liquid penetrates into the equipment, shut down the sound system immediately. Disconnect the AC adapter from the power outlet immediately and have the equipment checked by AKG service personnel.
7. If you will not use the equipment for a long period of time, disconnect the AC adapter from the power outlet. Please note that the equipment will not be fully isolated from power when you set the power switch to OFF.
8. Do not place the equipment near heat sources such as radiators, heating ducts, or amplifiers, etc. and do not expose it to direct sunlight, excessive dust, moisture, rain, mechanical vibrations, or shock.
9. To avoid hum or interference, route all audio lines, particularly those connected to the microphone inputs, away from power lines of any type. If you use cable ducts, be sure to use separate ducts for the audio lines.
10. Clean the equipment with a moistened (not wet) cloth only. Be sure to disconnect the AC adapter from the power outlet before cleaning the equipment! Never use caustic or scouring cleaners or cleaning agents containing alcohol or solvents since these may damage the enamel and plastic parts.
11. Use the equipment for the applications described in this manual only. AKG cannot accept any liability for damages resulting from improper handling or misuse.
12. The AC adapter will draw a small amount of current even when the equipment is switched off. To save energy, disconnect the AC adapter from the power outlet if you will leave the equipment unused for a long period of time.
13. When scrapping the equipment, separate the case, circuit boards, and cables, and dispose of all components in accordance with local waste disposal rules.
14. The packaging of the equipment is recyclable. Dispos of the packaging in an appropriate container provided by the local waste collection/recycling entity and observe all local legislation relating to waste disposal and recycling.

1.2 Environment

2.1 Introduction

2 Description

Thank you for purchasing an AKG product. This Manual contains important instructions for setting up and operating your equipment. Please take a few minutes to read the instructions below carefully before operating the equipment. Please keep the Manual for future reference. Have fun and impress your audience!

2.2 Packing List
1 SR 40 SINGLE receiver

1 AC adapter (see sticker on packaging)

1 Manual Supplement sheet

• Check that the packaging contains all of the items listed for your system. Should any item be missing, please contact your AKG dealer.

2.3 Optional Accessories

• For optional accessories, refer to the current AKG catalog or folder, or visit www.akg.com. Your dealer will be glad to help.

2.4 SR 40 SINGLE Receiver

The SR 40 SINGLE is a stationary receiver for use with all WMS 40 and Microtools Series transmitters. It features a half-rack case for mounting in a 19" rack.

The SR 40 SINGLE provides one reception channel and operates on a single fixed, quartz stabilized frequency in the 660 MHz to 865 MHz UHF frequency range.

2.4.1 Front Panel

Fig. 1: Front panel controls on SR 40 SINGLE receiver.

Refer to fig. 1.

1 ON/OFF: On/off pushbutton switch with status LED.
2 Antenna: Fixed-length UHF antenna permanently mounted on the front panel.
3 VOLUME: This rotary control adjusts the receiver's output level from microphone to line level for matching to the input sensitivity of your mixer or amplifier.
4 RF OK: This LED illuminates to indicate that signal is being received. If no signal is received or the automatic squelch is on, the RF OK LED goes out and the audio output is muted.
5 AF CLIP: This LED illuminates to indicate the audio level of the received signal is overloading the receiver's audio section.
6 Color code lines: The color indicates the receiving frequency of the receiver. Transmitters tuned to the same frequency are marked with the same color. Refer to the Manual Supplement sheet for a color code table.

2 Description

2.4.2 Rear Panel

Fig. 2: Rear panel on SR 40 SINGLE receiver.

7 Carrier frequency label: A label indicating the receiving frequency and approval marks of your receiver is affixed to the rear panel of the receiver.
8 AUDIO OUT: Balanced TRS 1/4" jack, adjustable from mic to line level. You can connect the output either to an XLR microphone input or to an unbalanced line input on a mixer or amplifier.
9 Strain relief for the feeder cable of the supplied AC adapter.
10 DC ONLY: Input connector for the supplied AC adapter.

Refer to fig. 2.

2.4.3 Automatic Squelch

The automatic squelch circuit switches the receiver off if the received signal is too weak, in order to suppress the related noise or the residual noise of the receiver while the transmitter is off.

Important!

3 Setting Up

• Prior to setting up your WMS 40 system, check that the transmitter and receiver are tuned to the same frequency. The easiest way to do this is to compare the color codes on the transmitter and receiver.

3.1 Positioning the Receiver

• You can either use the receiver freestanding or mount it in a 19" rack using the optional RMU 40 PRO rack mounting kit. For instructions on how to rack mount the receiver, refer to the RMU 40 PRO manual.

• Reflections off metal parts, walls, ceilings, etc. or the shadow effects of musicians and other people may weaken or cancel the direct transmitter signal. For best results, place the receiver as follows:

• Place the receiver near the performance area (stage). Make sure, though, that the transmitter will never get any closer to the receiver than 10 ft (3 m). Optimum separation is 16 ft. (5 m).

• Check that you can see the receiver from where you will be using the transmitter.
• Place the receiver at least 5 ft. (1.5 m) away from any big metal objects, walls, scaffolding, ceilings, etc.

3.2 Connecting the Receiver to a Balanced Input

Refer to fig. 3.

Fig. 3: Connecting the receiver to a balanced mixer input.

1. Use a balanced cable with an XLR connector and 1/4'' TRS jack plug (available from electronics or hi-fi stores).
2. Connect the AUDIO OUT jack on the receiver rear panel to the desired balanced (XLR) microphone input on the mixer or amplifier.
3. Turn the VOLUME control on the receiver all the way CCW to set the receiver output to mic level.

3.3 Connecting the Receiver to an Unbalanced Input

Refer to fig. 4.

Fig. 4: Connecting the receiver to an unbalanced mixer input.

1. Use a standard 1/4" jack cable to connect the AUDIO OUT jack on the receiver rear panel to an unbalanced 1/4" line input jack on the mixer or amplifier.
2. Turn the VOLUME control on the receiver all the way CW to set the receiver output to line level.

Important!

• To avoid hum interference, do not use any audio cables that are longer than 10 feet (3 m)!

3 Setting Up

3.4 Connecting
the Receiver to Power

1. Check that the AC mains voltage stated on the included power supply is identical to the AC mains voltage available where you will use your system. Using the power supply with a different AC voltage may cause damage to the unit.
2. Point the antenna (2) upward.
3. Plug the feeder cable on the included power supply into the DC ONLY socket (10) on the receiver.
4. Bend part of the feeder cable into a small bight, pass the bight through the strain relief (9) from above, and slip the bight over the hook on the strain relief (9). Tighten the cable.
5. Plug the AC adapter into a convenient power outlet.
6. To switch power to the receiver on, press ON/OFF (1). To switch power to the receiver off, press ON/OFF (1) again.
7. Move the transmitter around the area where you will use the system to check the area for "dead spots", i.e., places where the field strength seems to drop and reception deteriorates.

If you find any dead spots, try to eliminate them by repositioning the receiver. If this does not help, avoid the dead spots.

Fig. 5: Connecting to power.
Refer to fig. 5.

3.5 Before the

Soundcheck

Refer to fig. 1 on page 14.

3 Setting Up

1. The RF OK LED (4) on the receiver going out means no signal is being received or the automatic squelch is active.

Switch power to the transmitter ON or move closer to the receiver, to the point that the RF OK LED (4) will come back on.

4 Cleaning

• Use a soft cloth moistened with water to clean the receiver surfaces.

5 Troubleshooting

Problem	Possible Cause	Remedy
No sound.	1. AC adapter is not connected to receiver and/or power outlet. 2. Receiver is OFF. 3. Receiver is not connected to mixer or amplifier. 4. VOLUME control on receiver is at zero. 5. Microphone or instrument is not connected to bodypack transmitter. 6. Transmitter and receiver color codes are not identical. 7. Transmitter on/off switch is at "OFF" or "MUTE". 8. Transmitter batteries are not inserted properly. 9. Transmitter batteries dead. 10. Transmitter is too far away from receiver. 11. Obstructions between transmitter and receiver. 12. Receiver is invisible from transmitter location. 13. Receiver sits too close to metal objects.	1. Connect AC adapter to receiver and/or power outlet. 2. Push ON/OFF switch to switch receiver ON. 3. Connect receiver output to mixer or amplifier input. 4. Turn up VOLUME control. 5. Connect microphone or instrument to audio input on bodypack. 6. Use receiver and transmitter with identical color codes. 7. Set transmitter on/off switch to "ON". 8. Insert batteries conforming to "+" and "-" marks. 9. Replace batteries. 10. Move closer to receiver. 11. Remove obstructions. 12. Avoid spots where you cannot see receiver. 13. Move receiver away from or remove interfering objects.
Noise, crackling, unwanted signals.	1. Antenna location. 2. Interference from other wireless systems, TV, radio, CB radios, or defective electrical appliances or installation.	1. Relocate receiver. 2. Switch off interference sources or defective appliances or use a WMS 40 SINGLE tuned to a different frequency; have electrical installation checked.
Distortion.	1. (Bodypack transmitter only:) GAIN control is set too high or too low. 2. Interference from other wireless systems, TV, radio, CB radios, or defective electrical appliances or installation.	1. Turn GAIN control down or up just enough to stop the distortion. 2. Switch off interference sources or defective appliances or use a WMS 40 SINGLE tuned to a different frequency; have electrical installation checked.
Momentary loss of sound ("drops") at some spots within performance area.	• Antenna location.	• Relocate receiver. If dead spots persist, mark and avoid them.

6 Specifications

Receiving frequency	660 to 865 MHz
Modulation	FM
Audio bandwidth	40 Hz to 20 kHz
Frequency stability (-18°C to +50°C)	±15 kHz
T.H.D. at 1 kHz	typ. 0.8%
Compander	Yes
Signal/noise ratio	typ. 110 dB(A)
Current consumption	typ. 95 mA
Power requirement	120/230 VAC, 50/60 Hz
Squelch threshold	-100 dBm
Audio output	bal. 1/4" jack: adjustable from mic to line level. Output level at rated deviation: 500 mV rms
Size	200 x 190 x 44 mm (7.8 x 7.4 x 1.7 in.)
Net weight	580 g (1.3 lbs.)

This product conforms to the standards listed in the Declaration of Conformity. To order a free copy of the Declaration of Conformity, visit http://www.akg.com or contact [e-mail].

Table des matieres

Page

1 Receptor SR 40 SINGLE

1 Supplemento ("Manual Supplement")

1 Receptor SR 40 SINGLE

5 Resolver problemas

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ROHS OK

H A Harman International Company

Technische Änderungen vorbehalten. Specifications subject to change without notice. Ces caractéristiques sont susceptibles de modifications. Ci riserviamo il diritto di effettuire modifiche tecniche. Nos reservamos el dato de introducir modificaciones tícnicas. Especificações sujeitas a mudanças sem uso prévio.

Printed in China (P.R.C.)

01/08/9100 U 12650