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Power supply model B099 need a circuit diagram thanks

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Posted on Jan 02, 2017

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ldm0
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SOURCE: i need power supply sharp b099 v555750 do you

You can order it @ store.musicservice.pl... just e-mail them
BR

Posted on Apr 11, 2012

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jmtsecurity
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SOURCE: i need power supply sharp b099 v555750 do you

need a circuit diagram for power supply sharp model b099 yamaha s90 synthesizer thanks

Posted on Dec 28, 2013

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I need the schematic diagram, exactly for the power supply board SPS1000/02


You didn't tell us what make and model you're asking about, but generally if you contact the customer service department of the company that made the unit, they will supply the schematics for their devices.

Nov 25, 2015 | Music

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

Power supply circuit diagram


There is almost certainly a reason the PSU has blown, these are not very reliable units and the amp has probably gone and taken the PSU with it. You are better off taking it to a dealer and getting it fixed. If there is no power on the seecondary and there is no short the transformer must have blown (assuming you're not trying to check with a DC meter)

Jan 19, 2014 | Mackie Srm450v2 Srm450 Srm 450 V2 Active...

1 Answer

Behringer sx3242fx not working .i need circuit diagram .


Behringer will not release schematics unless you are an authorized service agent... however, sometimes you can make do with the few schematics floating around... What is the problem with the unit? They typically use a switching power supply and the schematics of those aree usually similar enough to repair them.

Sep 09, 2011 | Behringer Sx3242fx Eurodesk 32-channel...

1 Answer

I'm looking for wiring diagram and service manual for PRX-635. Mosfets are out of order, I want to fix and understand it kk happened. I have the necessary education and experience. Thank you. ...


This unit has Class "D" amplifier which is a switching type, unlike most linear amplifiers you might be familiar with. The MOSFETs operate either in full on or full off mode and switch... probably at 100KHz or more with a duty cycle proportionate to the desired output. The energy is then smoothed in an inductor/capacitor filter becoming the desired linear type signal. You MUST have a triggered oscilloscope to troubleshoot this type of an amplifier. You may also need experience with logic circuits as often the current limiters for the switchers uses logic circuits. Thepower supply for most of these high powered call D amps runs from the power line and you will need an isolation transformer to safely work on the unit, primarily for personal safety. Search Google for "Class D amplifier" for information if you haven't had engineering education on these amps.

Aug 25, 2011 | JBL PRX635 Speaker PA Active

2 Answers

I need power supply sharp b099 v555750 do you


You can order it @ store.musicservice.pl... just e-mail them
BR

Jul 03, 2011 | Yamaha Music

1 Answer

Turn on the organ and get a loud hum.......


Chances are you're hearing "60-Hertz" hum that comes from poor filtering in the organ power supply. Electronic circuits need direct current (DC) but our power lines supply alternating current (AC). The power supply converts the AC to the various DC voltages needed. Parts called filter capacitors smooth out the voltage, and if they go bad or lose contact because of bad connections the result can be the hum you're hearing.

There are other possible causes, but the filtering is so common it's a good place to start. You don't give the age of this organ, but if it's one that has been around a while, it's a good bet some of those capacitors are worn out.

If you can post a follow-up with a make and model, I'll check some of the technician groups and see if anybody has service information.

Good luck and thanks for using Fixya!

Feb 11, 2010 | Music

1 Answer

Behringer Xenyx 1622FX. Power supply has failed, no +5V rail, other rails are OK, appers to be no input to the regulator. Could do with a circuit diagram. I believe the PSU is used in other mixers.


Suspect a broken circuit trace or broken solder. If they use a 7805 three terminal regulator, check the solder around those pins...
Berhinger does NOT release schematics except to their service facilities... I know... I have tried... I repaair a lot of their stuff and have to trace out the circuits.

Power supply circuits are rather easy except for the switching regulators if they have failed totally.

If only the +5 is dead, you should be only a filter cap and a diode or two away from the problem... Transformer leads and electrolytic leads with their weight are favorite to pull out of solder... On Behringer, often the traces are narrow and can have a crack in them.

Jan 13, 2010 | Behringer Xenyx 1002fx Mixer 10 Input 2...

1 Answer

Power Supply V-amp 2 Pinout Diagram


Don't have the pin lay out but the power supply is a transformer with two isolated secondaries. The blue & brown leads come from the 20VAC 200mA and the black & white 11VAC @ 800mA windings. I used two doorbell transformers (and a rheostat for the 11VAC section). The reason for two transformers is the secondaries MUST be isolated or something will fry!fb818bb.jpg

Jun 09, 2009 | Behringer Pmp3000 16 Channel Audio Mixer

1 Answer

Digitech rp6


Try contacting their service center rep at (801)566-8800. They might send you a schematic for the pedal if you explain your situation. They do recommend using the original power supply PS0912 which should still be available. Hope this helps.

May 25, 2009 | DIGITECH VOCALIST LIVE 2

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