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Wedge powered monotor will not power up

Will not power up

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Power supply faulty. Take it to a good electronics engineer.

Posted on Mar 25, 2014

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Fuse power amp is good I have power on power supply but the amp does not turn on what meaning is this?


Probably a bad transformer? Do you have power on the secondary side? Power in is one thing power out is another, hope this helps?

Mar 02, 2015 | Fender Frontman 212R 100W 2x12 Guitar...

1 Answer

Can you please tell me the best amp that I can use to hook up a Roland SPD 30, I'm looking for one to get volume. ( loud ).


Hi, With my sound engineers hat on I would use a small PA. mixer, amp and speakers!!!!
For quality you need a full, flat frequency range system with good headroom.
I assume this is for your own listening, when using an acoustic kit?
There are one box solutions.
  1. Drum amps. Like a monitor wedge with an amp, Roland do a PM-10, Various other makes are available.
  2. General purpose powered wedge.
  3. Keyboard Amp, these are full range and available in various sizes.
  4. Bass amp with high frequency driver (tweeter), not the best but will have good bottom end.
  5. Powered or active speaker, much like a powered wedge, but a different shape, needs an input volume control.
All these systems need to have large bass units, 10 inch minimum, and will be in mono. Two will give you stereo,
How loud depends primarily on the sensitivity of the speaker. But manufactures insist on selling things by power. Worth looking this up.
At a couple of feet away, 20 watts should do it, with high sensitivity speakers, more likely you find most things as above start at about 70 Watts.
Good luck, I hope I have widened you choices a bit.
All the best, Chris the Fader.

Oct 03, 2014 | Roland Spd-30 Drum Pads

1 Answer

Model Yamaha ME-50 no power


John
With AC power off.
Use a meter (on Ohms scale) to check internal fuse for blown (open) fuse.
If you feel qualified & safe with AC Power On.
Check input to internal power supply on AC Scale (Caution when AC is on) for volts in.
Use meter on internal Power Supply for "probably" DC volts leaving internal Power Supply electronics to power the rest of the electronic circuits.
Switch mode power supplies can break down. They stop doing their high frequency switching so they don't convert AC to DC.
If this P/Sup is a separate box or circuit board, inside the unit, then it can have a part number & be replaced.
Good Luck

Jul 14, 2014 | Yamaha Music

1 Answer

Lost my Instructions!!!


Please name the manufacturer and the model number of your unit in the question. It helps us a lot.

Jul 25, 2013 | Music

1 Answer

I have a Focusrite Pro 10 i/o Firewire Interface and am experiencing 60 Hz hum through the mic pres when phantom power is switched on with the power supply attached. Phantom power running from 6-pin...


I assume you are using condenser mics as you would NOT be using phantom power with any other type connected or other devices plugged in while you have phantom power. It is important to have ALL interconnected equipment, including the computer, powered from the SAME receptacle or power source. Make sure the power supply you are using is SPECIFICALLY for the unit from Focusrite as some supplies have filtering within the wall transformer module and others do not. The power supply MAY be generating magnetic fields... try moving it around and see if hum is affected. The capcitive coupling in a power supply can let in higher frequency components from lamp dimmers. Make sure you have no lamp dimmers anywhere near the equipment.

Apr 25, 2011 | Focusrite Saffire Pro 26I/O 26 In/26 Out...

1 Answer

My Roland kc 550 will not power on.


Hello,

if it does not power up, then it means its having a power problem. it might have worked fine in the past, but that's electronics for you. Power surge, irregular power supply, excess power supply, etc can affect the unit thereby not making it to power on.

This unit must have a power supply board in it where power enters from the mains. A capacitor, fuse, diode, etc may have been defective on the power board and maybe that's why its not making the unit turn on. There might also be some disconnection or something, inside the unit which is not making it to power on.

To actually find out what's wrong, you need to disassemble the unit with a screw driver and check what's wrong. You will be needing a meter in order to test the components on the power board, once you detect any bad component, you can make necessary replacement at any electronics accessories store withing our vicinity. This is the only way by which you can detect the problem.

Of course, testing the power board with a meter will require someone that has the ability. So it you can't, then you might be needing the help of a repairman or you can call a friend that has the ability to help you out.

I wish you the best of luck.

Take care........

Mar 21, 2011 | Roland KC550 Amp Keyboard

1 Answer

Bought a powered monitor as it said to do even though I thought it was weird as you usually use a passive monitor with a power amp. Purchased Kustom 10" powered monitor, hooked it up to monitor...


You didn't mention what brand powered mixer you have, HOWEVER MOST powered mixers also have a line level monitor and main output jacks. These are almost always 1/4 inch jacks. In any case you should be using BALANCED lines to the powered speakers using either XLR or TRS connectors on the ends. Please tell us what powered mixer you have so we can give you better answer regarding which connections to use. IF for some reason your mixer does NOT have line level outputs, you can use a high level Direct Box to condition the powered outputs to be sent to the powered speakers..
Also make sure ALL your interconnected equipment is powered by the same receptacle or source to avoid damaging due to ground bounce on utility lines and circuits. This often means running an extension cord from the stage where the powered speakers are along with a snake of the audio cables.

Dec 10, 2010 | Kustom Profile 2 PA Speaker / Mixer Stand

1 Answer

Bought a powered monitor as it said to do in the owner's manual, even though I thought it was weird as you usually use a passive monitor with a power amp. Purchased Kustom 10" powered monitor, hooked...


You haven't mentioned what model and manufacturer the mixer is. I will have to guess and say that the monitor out on the board isn't providing signal to the powered monitor or the monitor out on your board is powered and is now damaged by plugging a powered monitor into it. Carefully reread your manual and determine if the monitor out on your mixer is powered or line level. Reread also and make sure that the signal you are monitoring is assigned to monitor out, levelled correctly etc. If you find that the monitor out is passive (line level) try hooking it up to an external power amp and speaker. A guitar amp will do for testing purposes. Start with a low input volume on the amp. Also make sure that if it is passive to use a shielded cable from monitor out to input. If your board has powered monitor outs you can use a speaker cable from monitor out to speaker input (non powered monitor speaker).

Dec 10, 2010 | Kustom Profile 2 PA Speaker / Mixer Stand

1 Answer

Power supply for vocalist 2 goes bad twice


Likely the supply was underated OR it is getting hit with a transient. Transients are common in some venue power systems.

There should be a label on the unit as to what the power requirements are. Make sure the power adapter is rated for that or more CURRENT in amps or milli-amps.

Are you sure the power supply has failed? There could be an intermittent in the unit, most likely with the inout power jack... They often get damaged by tripping over the power cord.

Feb 09, 2010 | DIGITECH VOCALIST LIVE 2

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