Battery stuck Last battery (of 6) is corroded and stuck deep in the keyboard. I have tried many tools but can't get it loose. Thank you.

https://www.casiomusicforums.com/index.php?/topic/19061-broken-keys-of-privia-px-120/

https://www.youtube.com/watch?v=lREFbtqDr90

https://100tutos.com/video/1664158/how-to-repair-a-stuck-key-on-a-casio-px-120-digital-keyboard/

Is the unit operated directly from the mains or via a mains adaptor (transformer) If it is the later then my guess is that the socket owhere you plug the power adaptor in is loose. They have a habit of breaking away from the circuit board. When you then move the keyboard it breaks the connection . You can test this theory by turning it on, looking at display or light that is on, move the plug and see if it cuts out. If it does the fault is here. Replace the socket and if needed repair pcb as pads tend to break away from board.


If it is mains operated or power socket is OK then it could be loose cables or a break on the PCB. The socket option is the more likely.


If you need more specific info on your keyboard please state make and model and request further info under this topic.

Sound banks does not define what keyboard you might have... HOWEVER... THINGS TO CHECK: Check if the bass MIGHT have a transpose set by mistake. Also check if pitch bend might be active... some keyboards can use a pitchbend pedal... We can't guess what brand or model keyboard you have. Batteries are NOT anything that would cause this. Remember that on a keyboard there is a LIMIT to the number of sound generators that are available and you can run out of polyphony with mass layering. The last thing might be any "effects" you have activated. It sounds like you can split this keyboard so separate transpose MAY be possible that low end is transposed while upper is not...

Sounds like you have a poor or open ground if the loud noise is 50 or 60 Hertz. If you have the loud noise when the keyboard not connected then the open ground is in the amp. Often times it is only a cold or bad solder connection which you can touch up with a solder iron and some rosin core solder. If the noise disappears when the keyboard is not connected then I would look at the patch cord first and the connectors second. If you have a second amp you can test to cord and keyboard to verify the problem is the keyboard. If you have to touch up the solder connections, unplug and open up the unit. Make sure all connectors or seated and none of them are loose. Use a grounded three prong solder iron and 60/40 rosin core solder. Heat up connections on the connector and add a small bit of solder to each connection. Next heat up the solder connections on the circuit board and quickly add some solder. Caution, do not apply to much heat on the circuit board or the copper trace will lift off the board so you need to use as little heat as possible just to start the solder to flow then let it cool.

It sounds like the sustain is stuck on as if a sustain pedal is active. You don't mention if you have one, however if you MIGHT have one and you have used a Roland pedal, that brand is reverse sensed and would cause note to remain on.

Dead battery or disconnected power adapter. Leaving cables connected discharges battery in a day as this is what switches the battery on. (The input cable)

If you are running on batteries, they are either depleted OR may have corrosion on the contacts in the keyboard which is COMMON problem. If using an adapter, the cords chronically work loose. A last problem is the switching for using battery or adapter can have poor contacts. If you don't have an adapter, get one and get one SPECIFICALLY for the keyboard... I don't know how many I have had to tell they have the wrong adapter and that is why their unit won't work.

This is a long shot... If you have an add-in option board it may have become dislodged from the socket. If you move your keyboard this may be what happened. In any case it needs to be opened and look for loose cables, board, OR if you have a hard drive, the drive may have failed. The software in these units isn't smart enough to give the user any details of the failure/hangup.

Try this site:http://line6.com/community/community/support