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HQRP Master
5,603 Answers
- Posted on Apr 13, 2011
Re: Yamaha psr-280 flashing display no key response or...
Your adapter should be a 12 volt DC delivering 2 amps (2000 ma). If the adapter is too small, you will have the symptoms you are seeing. Make sure the polarity is correct. DO NOT use the so called "universal adapters".
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