20 Most Recent Casio Privia Px330 Px-330 88 Key Digital Piano New - Page 8 Questions & Answers

Hi, This and a lot of similar keyboards have gold flashed pads on the PCB and the keys press one or two rubber caps, with conductive pads in them, down.
Clean the pads with isopropanol, (and nothing else) and it will be cured 99% of the time. If a few notes do not work, especially after heavy use, then the rubber caps can be replaced.
Taking the keyboard apart is long winded because of the number of screws involved.
The job its self is simple enough, but take note of the order things go in and where the screws go.
Hope this helps, Chris.

Casio Music | Answered on May 02, 2016

Hi, There are several common reasons why this and most similar keyboards have this problem.
If you can fit known good batteries, and it works, this confirms the problems will be with the external power supply or connection.
Usually batteries are not available, so.......
Do the obvious.
  1. Is the power supply plugged into a known good mains socket?
  2. is the mains socket switched on?
  3. is the power supply plugged into the keyboard?
  4. is the keyboard switched on?
If the power supply is not the one supplied with the keyboard, then check it is compatible.
(You do not have to buy an expensive replacement power supply, a universal, regulated one, with a selection of connectors will be fine. Supermarkets and the like sell them.)
The manual, or a label on the bottom of the keyboard will tell you the voltage, current consumption, and whether the current is AC or DC.
Invariably the current is DC.
All the Casios I have are 9 Volts, (9V) and very few are more than 300 milli amps (300mA) More milli amps is fine, so the current can be the same or greater.
A TYPICAL power supply is likely to be:-
  • 9 V
  • 300 mA or more
  • DC
The power supply needs to be REGULATED.

This is the way round the connector is wired.
Usually the center is negative (-) and the barrel is positive (+)
This information is molded into the plastic or on a label next to the socket.
On a replacement (universal) power supply, there will be a set of connectors, and when you have selected the correct one, the arrow on the end of the lead should point to the correct polarity symbol on the connector.

Fault finding
The most common fault is the power connector being broken or the solder has been broken.
Slowly moving the connector round, to find it works in some positions, is a sure indication that is the fault.

Repair is quite simple, but there are a lot of screws to take out.
Ideally, drill a hole in the case, where convenient, and fit a metal connector. Now connect to the PCB, in place of the original socket, with flexible wires.
Other wise if it is just solder failure, re solder and glue the socket with epoxy resin (Araldite) or hot glue from a glue gun.
Hope this helps, Chris.

Casio Music | Answered on May 02, 2016

They are all compatible. Make sure the port on the keyboard is the same size as the plug on the pedal, usually a phono plug. Also make sure it is a sustain pedal and not an "on off " switch.

Casio Music | Answered on Apr 22, 2016

That sounds like the volume pot has failed and needs to be replaced. I'd suggest taking it to a Casio service center. Here is a link to find one-

Casio Music | Answered on Mar 02, 2016

Unfortunately, the SP33 pedal will not work with the PX-830BP. Casio lists that the SP33 will only work with the PX-150BK, PX-150WE, PX-160BK, PX-160GD, PX-350BK, PX-350WE, PX- 360, and PX-560 keyboards.

The PX-830 manual does not list the stand or the pedal unit as separate items if you need to replace them. The pedal unit has 3 pedals like a traditional piano. I wish that I had better news for you.

Cindy Wells

Casio Music | Answered on Feb 04, 2016

These pads can be replaced ( providing Casio still have spare parts ) There are a lot of screws to undo to get inside the keyboard, then remove any PCB above the pad, replace and reassemble.


Contact your nearest Casio service centre

Casio Music | Answered on Nov 04, 2015

No sounds from speakers.
It may cause by power amp (or pre-amp) inside the Casio is defects.
Or maybe the setting for LOCAL in global mode is set to OFF.
Set it to ON.

Casio Music | Answered on Sep 02, 2015

No sounds from speakers.
It may cause by power amp (or pre-amp) inside the CTK is defects.
Or maybe the setting for LOCAL in global mode is set to OFF.
Set it to ON.

Casio Music | Answered on Sep 02, 2015

ALWAYS start with the "easy" things 1st. Is the AC outlet on the wall working properly? Is the "wall-wart" power supply working correctly? If no defect is found, check the DC power jack located on the rear of the keyboard. Does it seem to be loose or does moving the power supply jack up/down cause any change? New wall-wart power supplies can be purchased from Radio Shack and usually at a lower price than the original factory replacements.

Casio Music | Answered on Apr 01, 2015

At this point, you need to take it to the shop. There are too many possibilities to get it figured out without it being in hand.

Casio Music | Answered on Mar 23, 2015

Go to this link. Once it comes up, download the pdf file and you will have a permanent copy.

Casio Music | Answered on Mar 03, 2015

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