Boss Music - Page 7 - Recent Questions, Troubleshooting & Support

Try a "factory reset" on the unit. Make sure you hold the buttons till unit confirms the reset.

My Yamaha electone organ el25 no sound but all lights on

Check if you may have knocked off the speaker leads OR ones to an expression pedal.

I was able to order one from Celedonia Organ Service. They also have a service book on the MX2.

I know how to set it back to factory boss micro br.

I had the same issue, and ended up solving it after trying many different things. So first you put the card in your reader, right click, and hit "format...". It should ask you if it's ok to erase everything. Say yes.

Then put the card in the recorder, and it should say "Unformatted". Hit Utility and TR4 to Initialize. That should do the trick. Hope that helps!

It obviously will need to be repaired. It sounds like a power supply problem. I would NOT use it until it is repaired as there could be a problem that if left untreated may damage other components.

Some devices go into a sleep mode if no action is being done, but it doesn't sound like that is the case with your unit.

i got d same problm. i fixed it myself.. check all the op amp ic's if they're all gud. if youre not sure, replace all 4 rc4558 ic's. in my case, i still felt a very small output signal from my pedal (equalizers, vol n gain ctrls r gud since they vary when i change the setting) so i suspected that one or 2 of my ic's were damaged. i only replace d last two op amps which my signal passes thru. i also had this problm with my marshall drive master. same diagnosis and solution. check your schematics