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My casio hz 600 won't store new sounds that i've written, is there an internal battery to protect memory and if so, do i need to replace it?

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Yes there will be a small flat battery which you need to replace inside the unit.

Posted on May 06, 2010


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Does it have an internal battery?

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I need to factory reset my X3

update it or flash with new latest files

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I turned my Casio px575r on, after working fine for a couple of years, and get random synth sounds and volume blasts instead of the chosen sound.

You may be running out of internal memory. Try deleting, songs & SMF etc that you may have recorded to INF AFTER moving them to an SD CARD first.
IDES4 can also be used to move user tones etc and do a factory init.

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I have a failing WK3800 which I've had for less than 2 years and it has many problems: first I lost all the songs in the internal memory, then the keys 3, 6, 9, and + stopped functioning. Now my...

It sounds like the actual button switches are going bad. Those would normally be replaceable id you can find an electronic tech that is competent. The internaal backup battery may be bad causing loss of the songs. One would have to look at the switches and find a substitute supplier. These switches are often very tiny about the size of a pencil eraser and are actuated by the larger buttons on the panels. You can probably find them at or They typically cost about 30 cents each... Disassembly and desoldering and soldering qill be required. The internal parts of the switches wear out.

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I've recently purchased a Roland foot pedal for my casio privia px-300 keyboard. When playing a note, even though the pedal is not pressed, the note sustains. When I press the foot pedal down, it cuts...

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The way you troubleshoot these problems is to use a current limited power supply to drive say 1/2 amp into the circuitry. Then you use a millivoltmeter to find the point where the tiny voltage developed across the short goes to zero.

Sometimes you can monitor the tiny voltage and use freeze-mist to cool suspected components and look for the tiny change that occurs with temperature change.

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Check your battery. A weak battery will recover a bit when you power down for a brief period. Strumming hard will overcome the weak amplification when battery is down. Check that your battery is at LEAST 8 volts.

Also verify your plug into the guitar is clean. The barrel of the plug shorts to the ring contact to connect the internal battery. Do NOT use a balanced TRS cable for your intrument as this will lead to a marginal condition.

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