Need a power supply for a pmh5000 and install directions

Based on my research, the Yamaha PMH5000 mixer features two 1/4-inch "insert" jacks for connecting external effects processors, such as compressors or equalizers, to individual channels. These jacks are not intended for connecting external power amps.
However, the PMH5000 does have two "main out" jacks that can be used to send the mixed audio signal to external power amps. These are typically located on the back of the mixer and may be labeled as "L/R" or "Main Out."
When you connect an external power amp to the main out jacks, the signal is sent directly to the power amp and is not routed through the internal power amps of the mixer. The external power amp then amplifies the signal and sends it to the speakers.
It is important to note that when using external power amps, you should adjust the volume levels carefully to avoid damaging the speakers or the power amp.

As long as your power supply is supplying the correct voltage and the amp rating is sufficent, and of course the power supply itself is functioning, then your problem is more likely to be a routing error somewhere.. it's probavbly best to center all controls, disengage all switches, and start over from nothing. You should also check that what ever you are using to hear the signal is functioning correctly as well.

You probably need a new adapter. If not the power supply board inside might have a problem.

What is up is one of the two power amps is blown... I know this problem... It is USUALLY the rearmost channel which goes to the left Speakon faacing the back. Weak insulation between layers of the multilayer circuit board arcs and fries three transistors and a diode and sometimes a few more components. It takes a lot of skill to restore the module and is beyond most repair shops. A whole new module costs about $155 from Full Compass. The amp is an HCA2400 module, but you MAY need the Behringer part number to order it from Full Compass. Also please read my tip on Fixya for PMP mixers regarding the hazard when using 1/4 inch plugs from the Speakon connectors... the Channel A sleeve is the "hot", not the tip and if you ground the sleeve, goodbye channel A...

Sorry... you likely have one of the power amp channels bad as well. One does NOT replace the power supply, instead repair it. You need a competent repair shop. I can tell you what parts are blown on the supply. They cost about $30 max for parts to repair the power supply. There usually is about $15 of parts blown on the amp that caused the problem and significant labor to repair the amp portion. If the smoke was dark or heavy, it was likely from the 0.03 ohm metering resistor on the bottom of the amp circuit board that caused the original problem. If one replaces the power supply and turns power on they will find one side of the amp doesn't work and MAY blow the power supply again immediately. I have repaired several of these units and have walked others through the repair sequence as well. You can contact me directly by email for more info if you need it. Unless you can find a competent repair shop that replaces components, including work on surface mounted boards, the cost of the module parts AND availability will preclude repair. The amp module is another $155 after the power supply is repaired if a channel is bad and one chooses to replace rather than repair.

Sorry, but the DI-100 can OPERATE on phantom power, not supply it. If you have a mixer that has phantom power then you have no need for the DI box. DI boxes are to convert unbalanced signals to balanced to send via XLR or TRS cables.

If you don't have a mixer that has built in Phantom power or a source of Phantom power, then you need a mic preamp that can supply the phantom power.

Here is an example device, but DO shop[ around as you should find some even less expensive. Make sure they have phantom power.

http://www.amazon.com/M-Audio-Audio-Budget-Microphone-Preamp/dp/B000CZ0RZG

More analysis is needed!!!

I have 50 years of electronics troubleshooting and I use the experience to isolate bad parts. I will tell you that resistors USUALLY open circuit 99.99% of the time and very very rarely do they short... I maybe have seen one do that in the last 50 years.

Most common shorts are semiconductors and electrolytic caps with other types of caps and diodes pulling up the rear.

The way you troubleshoot this is to use a current limited power supply OR put a resistor in series with a supply of correct voltage and DRIVE some current into the short... keep it around 500 ma.

Next do the finger test lookig for WARM parts.

Next use a sensitive milli-voltmeter to trace where the voltage goes to ground. The circuit traces have resistance and you can follow the current by following the voltage drop till you find the lowest voltage and you will find your bad part.

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!

What??? There is NO output transformer for the Mg50DFX. The outputs are direct driven from hybrid stick TDA type solid state amp chips.

The power transformet is probably about 100 watt size and supplies two voltages... one that feeds a +/- 15 volt three terminal regulators... Probably 22 volts +/- to the regualtors and the other supply will be unregulated to the power amp chips.

There is a chance that the jack that the power supply plugs into is broken loose or has bad solder joints to the circuit board. I am hoping that you purchased a direct replacement for the power supply.