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Internal battery replacement

Problem after battery replacement with Roland A-90: Even the replacement was successful (and the Reset of Roland A-90 completed) the sound is just running for 30 seconds then disappears showing after some flickering a blank but lit display. Sometimes it shows very shortly the message internal battery: NONE! i looked at it again, but I could not recognize that there might be a contact issue at the battery socket. It is placed pretty firmly in the socket. So what else could it be?

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Posted on Jan 02, 2017

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SOURCE: I have a Roland D110 sound module. The rhythm

I would check to see if the unit has either a Lithium or NiCad backup battery in it which MIGHT be exhausted and need replacing.

Posted on Apr 01, 2010

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SOURCE: The LCD display on our yamaha DGX620 has

i have the same problem after lending it out to someone, could it be that it was left on for a long period of time ? did you find a solution yet?

Posted on Jun 18, 2010

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SOURCE: My Roland KR-4700 keyboard will come on and play

This si likely a problem in the power supply. The regulator is probably failing and dropping the voltage to the processor below what it will operate.

The probkem PROBABLY can be isolated with freeze mist circuit cooler.

First step is to check the voltage of the 5 volt source after it fails.

If you are not adept at electronics this is not a DIY thing.

Posted on Jul 05, 2010

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SOURCE: the display of my roland XP-80 is Zero, &

The procedure at this link shows you a battery replacement procedure that should work for you: You will need to design new user patches if you didn't back them up.

Posted on Jul 13, 2010

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SOURCE: I have a Roland FP-8 that I used for performances.

you have some internal components bad audio output IC, capacitors, driver transistors etc. your doing nothing wrong.

maybe just don't leave it on if your not playing it. Heat kills Electronics.

Posted on Jan 01, 2011

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