Music - Recent Questions, Troubleshooting & Support

This has the earmarks of battery problem... Supposedly this uses a 9 volt battery... You CANNOT use rechargeable batteries in these as the actual voltage of the rechargeable is lower than alkaline and they will fail quickly and as they age you may get only seconds of operation. When they go off the battery will recover a bit and even look like it comes on again. Do NOT count on the battery LED to give actual answer. When you turn on the unit, read the battery voltage under load with a meter. It should be at least 8.5 volts. NEXT possibility: A chronic problem with body packs is the battery contacts. There is a fine line between having good contact and being able to get batteries out. I have seen where people stuff paper in to increase tension on the contacts.

Shure... | Answered 3 days ago

I have the same problem with my KPM 4080 amp. I have no clue where the fuse goes. I'm sure mine also needs a fuse replaced.

Kustom Music | Answered on Mar 24, 2020

To be honest, I don't use such a tuner. I have downloaded an app which helps me to tune my guitar. By the way, I have electric 8 string guitar and it is far more difficult to tune and to play. Nevertheless, the sound is just incredible and I love it so much.

Matrix Music | Answered on Mar 21, 2020

I think your headphones got a defect. visit nearby repair shop to know what`s wrong with your headphones in detail.

Boss Music | Answered on Mar 19, 2020

Yamaha pianos go through a self test on start up. This could indicate a problem on the main motherboard.

Try a hard reset.

Hold down top C key while turning on.

Wait for it to start up, if it still freezes its time to take it to the repair shop.

Music | Answered on Mar 14, 2020

Could have broken a spring in the reverb tank, or a wire connecting it to the amp, or the reverb driver tube, or a few other things, but those are the most likely in this situation. Thats what I'd check first. Give it a little slap and if it vibrates like normal, your spring is probably ok, you can still open it up and double check though. Check your wires. Then pull your reverb driver tube and replace it. If that doesn't work, it is probably in the circuit somewhere, and you should not work on your amp unless you know what you are doing. They store large amounts of electicity in the caps and they can kill you.

Fender Hot Rod... | Answered on Mar 08, 2020

Yamaha Music | Answered on Mar 06, 2020

In an EU amp it’s in the IEC power lead (“Kettle lead”) socket in the back panel. Lever it open with a small screwdriver.

Kustom Dart 10fx | Answered on Mar 05, 2020

There is damage/burnt at Transistor Q4 or Q3 or both. Usually followed by R8. Replace it.
Q3 = BC337 (SMD marked as 6C) NPN.
Q4 = BC327 (SMD marked as 5A/B/C/D) PNP.
R8 = 470 ohm (SMD marked as 471).



Zoom G2... | Answered on Mar 05, 2020

I once had this problem. Turns on but no sound. I tested the fan next to the power supply and it ran rough like it was worn out. I found the fan on eBay A5010L12S and replaced the fan. The Stagepas 300 came back to life. This fan blows toward the power supply and the other fan sucks air to create a circulation of air inside the mixer.

Yamaha STAGEPAS... | Answered on Mar 03, 2020

first change tube 12at
if not help check the tank reberb (one spring is broken)

Peavey ValveKing... | Answered on Mar 02, 2020

Try this website: Look under reverb tanks. Check to see how many springs your old tank has and what size it is. I think Marshall used Accutronic tanks but have a look at all of them. There are pictures and info for each. Hope this helps.

Music | Answered on Mar 01, 2020

I suspect the vibration when it is loud is vibrating a reverb tank within the unit.

Test this bylistening with headphones and see if you get same sound.

It may be the reverb has a resonance or the cabinet does that is sensitive to your E chords.

The shock mounting of the reverb may have failed to isolate the reverb tank from speaker vibrations... hence the headphone test.

Marshall 15 Watt... | Answered on Mar 01, 2020

Fender Amplifiers are notorious for their reliability issues.However, I'm sure that amp will sound sweet once you get everything working again!

The problem is likely your "tank". The tank contains the springs which create reverb as the guitar's signal is sent through them. A broken spring could be causing your problem.

Luckily, any of the larger music stores should have them avalible.

Good Luck!


Fender Hot Rod... | Answered on Mar 01, 2020

it needs service, that is for sure.
sound like a bad power supply. pack (weak)
get it repaired, is the path.

Roland Music | Answered on Feb 27, 2020 search of the internet gives the following result:

How to Initialize (reset), and preload on the Korg X5/X5D/DR
  • Article #16230
  • Updated on Apr 27, 2007 at 12:00 AM

Initialization: Hold Page + and Page - while turning it on.
Preload: Global Screen 5A, then select "OK".
ROM Check: Hold Edit and Global/Multi while turning it on.

Korg Music | Answered on Feb 27, 2020

If the resister is still intact, upload a picture of it and I will tell you the value...

Peavey Music | Answered on Feb 26, 2020

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