My Yamaha PSR-260 Lights up But can't hear a thing

Check with a small speaker or amp plugged in the back. If you can hear it then the jack in the back is probably not making contact. If no sound comes out there then the Audio Amp or it's circuity in the organ is more than likely to need repair.

If the power adapter is not the original adappter- check to make sure the polarity is correct- it should be marked on the keyboard near the adapter socket, and also on the adapter itself.

The keyboard should have an internal fuse- check that. Then with keyboard open, if the fuse is okay, trace the power flow from the power pack and look for broken wires, bad solder connections, stressed components like bulging capacitors, etc. It may have a burned out zener diode in the power supply regulator portion of the main circuit.

You should be using the Yamaha PA-3B adapter. The unit draws 9 watts... so at 10 volts a 1 amp adapter would be great. Make sure the polarity is correct.

This MAY be due to a key contact or button that is STUCK "on".

Often this will freeze the controller.

Make sure power adapter is the correct one... underpowered or incorrect ones cause trouble.

I believe that is the wrong VOLTAGE !!!

The PSR takes a 12 volt, 1 amp or more DC power supply with positive on the pin.

If you have connected 24 volts either AC or DC of either polarity you have likely caused internal damage. Try a 12 volt DC supply and if it doesn't work, it needs to go to a repair facility.

ALWAYS check the voltage and the polarity on ANY of the devices using the power adapters BEFORE connecting the adapter..

If it is very old, check if the volume control could be contaminated. Make sure a voice is selected via the buttons.

Do try the headphones before anything further.

Check that you have the exact power adapter for the unit.

Make sure you use correct power supply.

Try headphones. If they work, then the switch on the headphone jack that disconnects the speakers may not be working properly and not connecting the speakers.

Yamaha PSR 60. Power light comes on but no sound from any of the keys or anything else. Can anyone advise

try placing your ear on the speakers, adjust the volume control up and down several times, you should hear a humming sound that goes up and down. if not problem with the stage before the amplifier, that is the sound processor. if you dont hear the hum. problem with the amplifier and speakers, including the sound ports or jack. dissassemble the unit. look for loose connections from speakers to amplifier.