background image

 

10 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

   Fig. 8 

Maintenance 

 

The 

DAP Audio 

MPA-series requires almost no maintenance. However, you should keep the unit clean. 

Disconnect the mains power supply, and then wipe the cover with a damp cloth. Do not immerse in 
liquid. Do not use alcohol or solvents. 
Keep connections clean. Disconnect electric power, and then wipe the audio connections with a damp 
cloth. Make sure connections are thoroughly dry before linking equipment or supplying electric power.

 

 

Replacing a Fuse 

Power surges, short-circuit or inappropriate electrical power supply may cause a fuse to burn out. If the 
fuse burns out, the product will not function whatsoever. If this happens, 

follow the directions below to do 

so.

 

1.

 Unplug the unit from electric power source. 

2. 

Insert a flat-head screwdriver into a slot in the fuse cover. Gently pry up the fuse cover. The fuse will 

    come out. 

3.

 Remove the broken fuse. If brown or unclear, it is burned out. 

4.

 Insert the replacement fuse into the holder where the old fuse was. Reinsert the fuse cover.  

    Be sure to use a fuse of the same type and specification. See the product specification label for  
    details. 

  

Troubleshooting 

 

DAP Audio MPA-series Amplifiers. 

This troubleshooting guide is meant to help solve simple problems. If a problem occurs, carry out the steps 
below in sequence until a solution is found. Once the unit operates properly, do not carry out following 
steps. 

1.

 If the device does not operate properly, unplug the device. 

2.

 Check the fuse, power from the wall, all cables, etc. 

3.

 If all of the above appears to be O.K., plug the unit in again.

 

4.

 If you are unable to determine the cause of the problem, do not open the amplifier, as this may    

    damage the unit and the warranty will become void. 

5. 

Return the amplifier to your Dap Audio dealer. 

Содержание MPA-4150

Страница 1: ...MPA 4150 ORDERCODE D6121...

Страница 2: ...ed You can rely on DAP Audio for more excellent audio products We design and manufacture professional audio equipment for the entertainment industry New products are being launched regularly We work h...

Страница 3: ...udio MPA 4150 Product Guide Warning Safety instructions Operating Determinations Description Features Overview Front panel Overview Back panel Operation Connection Cables Maintenance Troubleshooting P...

Страница 4: ...ution Never remove warning or informative labels from the unit Never use anything to cover the ground contact Do not insert objects into air vents Do not connect this system to a dimmerpack Do not swi...

Страница 5: ...Dap Audio device fails to work properly discontinue use immediately Pack the unit securely preferably in the original packing material and return it to your Dap Audio dealer for service Allow time to...

Страница 6: ...Use to adjust the siren level 4 Treble Use to adjust the treble frequencies for each channel to your preference 5 Master Use to adjust the volume level for each channel to your preference 6 Bass Use t...

Страница 7: ...D lights up when the output is above 200mV 17 Ready LED The LED lights up when the unit is ready for use Backpanel Fig 2 18 Power amp in Mono RCA in Use this input if You don t want to use the build i...

Страница 8: ...pressed a chime signal will be put out 32 Siren remote terminal Use this terminal for connecting a remote switch or relay contact Closing the switch will activate the siren independent of the siren f...

Страница 9: ...ution have the attenuators turned down during power up Dip switch settings The MPA4150 has 4 balanced combo inputs You can use these for connecting either jack or XLR cables Each input can be customiz...

Страница 10: ...is to avoid overloading the amplifier The total speaker power should be at least the power of the amplifier to avoid damage to the speakers High impedance outputs If using either the 25V the 70V outpu...

Страница 11: ...s to your advantage Periodically check that your cables are in good condition that they are correctly wired and that all their contacts are in good condition a great number of problems faulty contacts...

Страница 12: ...t in the fuse cover Gently pry up the fuse cover The fuse will come out 3 Remove the broken fuse If brown or unclear it is burned out 4 Insert the replacement fuse into the holder where the old fuse w...

Страница 13: ...e 10dB at 10kHz Bass 10dB 100Hz Total harmonic distortion 0 5 1KHz nominal power capacity Signal noise ratio Mic 60dB Line 70dB Tel 60dB Priority for MIC 1 Sensitivity 30dB 5 Outputs for speakers 4 8...

Страница 14: ...12 Appendix 1 Block diagram MPA 4150 Fig 9...

Страница 15: ...2008 DapAudio...

Отзывы: