User manual CROWN 160MA

[. . . ] Commercial Audio Series 135MA Operation Manual 160MA Obtaining Other Language Versions: To obtain information in another language about the use of this product, please contact your local Crown Distributor. If you need assistance locating your local distributor, please contact Crown at 574-294-8000. This manual does not include all of the details of design, production, or variations of the equipment. Nor does it cover every possible situation which may arise during installation, operation or maintenance. [. . . ] Cover the output connections with the supplied clear non-touch cover by sliding the cover on. If you are using a condenser microphone on Input 1, turn on DIP switch #8 on the back of the mixer-amp. The microphone must be able to work on 15V phantom power, which the mixer-amp's mic input connector provides. Input 4 1 - CH1 MicOn/LineOff 2 - CH1 Normal 3 - CH1 Priority 4 - CH1 VOX 5 - CH1 to MOH 6 - CH2 to MOH 7 - CH3 to MOH 8 - Phantom Speakers with 70V transformers CD player Input 3 Satellite Receiver Input 2 100V 70V 8 PREAMP OUTPUT TELEPHONE (MOH) Input 1 COM 8 600 PRIORITY ­ + + 5-terminal removable barrier block (Phoenix-type) To mic ­ 8-Ohm Speaker Paging mic To switch in mic. Switch mutes other channels. Figure 2. 9 Input-Output Wiring Operation Manual page 11 Commercial Audio Series Mixer-Amplifiers 3 Operation 3. 1 Powering Up 1. Plug the amplifier's power cord into a 3-wire grounded AC outlet. Turn up the master volume control(s) until the desired loudness or power level is achieved. If you ever need to make any wiring or installation changes, disconnect the power cord. 3. 2 Priority Muting If you want a microphone's push-to-talk switch to mute the background music or other input signals, follow this procedure. Connect a push-to-talk mic contact to the Priority Connector (Figure 3. 1). Input 1 is the priority input for the amplified output, so Input 1 mutes the other inputs. 3. 3 Voice-Activated (VOX) Muting If you want a voice to mute the background music or other input signals, follow this procedure. Adjust the VOX Threshold trim pot on the back of the unit to set how loud the voice must be before muting occurs. 3. 4 Music-On-Hold On the back of the unit, adjust MOH Level Control to obtain the desired level of Music-OnHold in your phone system. 3. 5 Security Knobs To prevent user tampering with the knobs, you can order the accessory 10-pack of security knobs from your Crown dealer, part no. The knob will not rotate. Input 1 PRIORITY Mic push-to-talk switch Figure 3. 1 Priority Muting Controls and Connectors page 12 Operation Manual Commercial Audio Series Mixer-Amplifiers 4 Troubleshooting CONDITION: No power to the mixer-amplifier. POSSIBLE REASON: · The mixer-amplifier's Power switch is off. · The mixer-amplifier is not plugged into the power receptacle. · The mixer-amplifier's high-voltage power supply circuit breaker has tripped. A Fault status can be triggered when one of the amplifier's protection circuits is activated. First disconnect your speakers from the affected channel(s) one by one to determine if one of the loads is shorted. If an amplifier channel has a thermal fault, there will be no indication on the front panel, but the amp will recover after cooling. If operation does not return to normal after restarting your amp, press the Reset button on the back of the unit. [. . . ] Corrective action will be taken within a reasonable time of the date of receipt of the defective product by our authorized service center. If the repairs made by our authorized service center are not satisfactory, notify our authorized service center immediately. DISCLAIMER OF CONSEQUENTIAL AND INCIDENTAL DAMAGES YOU ARE NOT ENTITLED TO RECOVER FROM US ANY INCIDENTAL DAMAGES RESULTING FROM ANY DEFECT IN THE NEW CROWN PRODUCT. THIS INCLUDES ANY DAMAGE TO ANOTHER PRODUCT OR PRODUCTS RESULTING FROM SUCH A DEFECT. WARRANTY ALTERATIONS No person has the authority to enlarge, amend, or modify this Crown Warranty. [. . . ]