Music - Recent Questions, Troubleshooting & Support

Often, the flashing green light indicates that the tuner is NOT receiving a signal and is a warning that the tuner is turned on.

First thing is to check if you have normal output from the guitar from the pickup. If the output is normal, there MAY be a failure in the tuner.

ALSO, just because a battery is new doesn't mean the battery isn't depleted... either try another from a different batch or use a voltmeter to check it. I have seen people chasing their tails due to a brand new bad battery.

When you select the tuner does the audio OUT of the guitar cut off as it is supposed to?

Washburn D10sbc... | Answered 3 days ago

That is the first thing to check. They are most likely inside the circuit board. Remember to replace them with the same voltage and amperage ratings.

Roland Cube-st... | Answered on May 23, 2020

A multi-effects unit that's as easy as a stompbox - that's the beauty of the new ME-70. The friendly, knob-laden design makes tone creation a snap, but with a powerful COSM AMP section derived from the GT-10, the ME-70 takes the "EZ effects" concept to new heights.

Boss Music | Answered on May 22, 2020

Buy 10 of these, put them in a warm oven for a couple of hours, then open up the piano and put all of them inside the case. You have moisture in there which is still condensing.

Yamaha P85 88Key... | Answered on May 16, 2020

To restoring Korg M50 to it's factory settings, first press the [MODE GLOBAL] button to enter Global mode. Then, press the [MENU] button, and choose "Load Preload/ Demo Data". When a dialog box appears, select "All Preload PCG" and then press the [OK] button. Finally, when a dialog box appears on the display, press the [OK] button again to execute the function.
Warning! This operation will cause restore any or all of the Programs, Combinations, Drum Kits, User Arpeggio Patterns, and Global settings to their original factory settings. Do not use this function unless you are certain that you want to do this. Hopefully the article of "Reset Korg M50 88-Key Keyboard Workstation" can help you.

Korg Music | Answered on May 16, 2020

Here are links to a standard LP wiring diagram and a LP Jr. wiring diagram. Absolutley free at

Epiphone Les... | Answered on May 14, 2020

Request the wiring diagram directly from Epiphone.

Epiphone Music | Answered on May 14, 2020

what program are you running and did you set up your keyboard with the software so it can recognize it. Depending on what software it is your using as soon as I know I can tell you how to get it working. I use my midi keyboard with everything from reason, Ableton live, pro tools logic logic express vdj traktor basically every software!

Casio Ctk491... | Answered on May 09, 2020

(1905)!! Please Read On How To Tell How Old Your Piano Is !! I Learned This From Grandma !!
Piano serial numbers usually have five to seven digits, but may have fewer or more, depending on the manufacturer and age of your piano. Serial numbers may also include a letter as well.
Here are the TOP FIVE places to locate the serial number of your spinet, console, or upright piano:
Serial number locations are found:
1) On the piano's cast iron plate. After lifting up the lid, look along the top front area of the plate. The serial number may be to the right or the left, or in the middle.

2) Under the opened lid on the ledge, stamped on a little plaque, to the right or to the left.

3) Stamped on the back of the piano; near the top of the wood frame.

4) Printed on one of the hammers, found on either end of the piano (newer or imported pianos).

5) Printed on one the keys - behind the nameboard, inside the piano (newer or imported pianos)

The Music | Answered on May 06, 2020

Let us use a bit of logic to resolve this... I have an Axiom but it would be a lot of screws to take out to get to the part... so let us think about this. The resistor value starts with a "1" and we know it is 5% tolerance (gold). we know the resistor burnt up with likely 5 volts on it... Value could be 1000 ohms, however the voltages present (12 volts max) would NOT have burned up a resistor of 1000 ohms. The USB area is mostly 5 volts and across 100 ohms is only a quarter watt... not enough to really burn up a resistor... First thing is to MEASURE that the resistor s open... in spite of being burned, it MAY still be OK... these resistors now usually either open or remain close to their value. The resistor ALSO may be a fusible resistor intended to act as a fuse... Is the resistor open or not? is it near a resistance with a "1" as the first digit? If it is not open I suspect it is not all of the problem. In that case, look for a burned circuit trace on the board. If it is open, then MEASURE the voltage across the resistor with the power applied. If you find 5 volts, then it MIGHT be a 10 ohm used to limit the USB current to 500ma. Get back to me with your findings... I have unraveled many of these things...

Music | Answered on May 04, 2020

In order to help you we would need the make and model of the mixer.

Behringer Music | Answered on Apr 30, 2020

I have a P-95 that stopped working as well. After contacting Yamaha, they told me that the P-95 is discontinued and not supported. I decided to diagnose it myself. First, I am an electrical engineer so, I was able to dig into the problem much deeper than the average Joe. So, the P-95 is powered by a 12v DC adapter. My adapter was producing 14.5v DC which is actually fine. I found a YouTube Vid to show me how to crack the keyboard open. It is well worth you time to find this vid as there are 57 screws you have to remove. Also, the small panel on the back MUST be opened first and the 2 ribbon cables must be disconnected before your separate the halves. I was able to find a service manual on line. The P-95 and the P-85 have the same guts. You must actually download the P-85 service manual as it has block diagrams and schematics.

The power section is located on the AM board and is really a simple circuit. 12 volts run thru a fixed fuse, filtered and then is "switched" by a power transistor circuit ( TR-401, TR402). How this works is as follows, when the power button is depressed, the circuit is triggered to pass 12 volts through to two (2) 5 volt regulators. One regulator is draws alot of current and is mounted on a heat sink (IC401). This powers the computer portion of the keyboard electronics. Once the main computer chip sees power, it wakes up and then sends a second trigger signal to the 12 volt power circuit telling it to "stay on" until the power button is hit again.

In my case, I was able to simulate the power switch signal and saw that the 12 volt switched circuit was actually working. So, then I focused on the 5 volt regulators. I suspected that the high power regulator was possibly bad. Sure enough, the low power regulator worked fine but there was nothing coming out of the 5 volt high power regulator lead. I ordered a new power regulator (Part Number NJM7805) and received it about a week later. I removed the old part from the board and replaced it with the new power chip. I was able to test the board by applying power and then simulating the power button switch and the power supply circuit began working like a champ.

Power electronics can overheat and will eventually pop. It happens. I was fortunate to find the schematic and figure out what component had failed.
Here is the link to the manual I used:

Also, this is the AM board. The bad IC was the single transistor mounted on the left hand side of the heat sink in the picture. It was not difficult to de-solder and replace.
5330-lg-undefined-undefined-0.jpg It's a shame that Yamaha is not supporting this keyboard any longer. It would be easy enough to keep a supply of AM boards on hand for replacement. Hope this helps others keep their keyboards up and running.

Yamaha P95... | Answered on Apr 30, 2020

This is the pdf file for the car manual I hope it will help you.

Alesis Music | Answered on Apr 22, 2020

Roland Music | Answered on Apr 19, 2020

After updating the firmware, you likely must do a factory reset. This is probably required so the keyboard will read and decide how much ram actually exists. At this site do the "factory reset" version:

Korg Pa800... | Answered on Apr 18, 2020

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