Why wont it power on?

i have a optimus concertmate 975 and no batteries or an AC adapter plug cord wont turn it on and so what's wrong and how can i fix it

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Hi @genetrapp56 ,

Some things take a little longer.

According to this link https://www.circuitbenders.co.uk/forum/i... your particular keyboard is a rebranded Casio CTK-485.

Below is a link to the service manual for a Casio CTK-485. To download the manual, wait until the sentence below the Document preview box changes from This file is downloadable free of charge: ...processing. to This file is downloadable free of charge: Get manual. Then click on the Get manual to commence the download. On p.8 it has a troubleshooting section detailing the most likely causes of no power. As with all service manuals it has schematic diagrams and part numbers which should assist you in finding the problem in case it is not one of those mentioned in the troubleshooting section.

Hopefully this is of some help to you.

http://elektrotanya.com/casio_ctk-485.pd...

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I have put new batteries and a AC power cord adapter wont turn it on

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Well it looks to me like im not going to get an answer and so that sure didnt me any good to post my question

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Gene Trapp will be eternally grateful.
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