I have a Casio WK-200 76 key keyboard that won't turn on

by Sam Beiting
(Liberty Twp, OH, US)

My Casio wk-200 76-key keyboard has always worked in the past and I have always had no trouble using a power adapter (6v DC output) that did not come with it (it didn't come with one) but has always been compatible.

Recently I lost my power adapter so I tried a different one (9v output) and then another one (15v AC output) and both failed. I ended up finding the original 6v DC output adapter and it didn't work, no matter what outlet I used on my Casio wk-200.

In desperation I bought 6 D batteries and correctly put them in the back but without success. I even tried all the adapters and the batteries at the same time, but my Casio wk-200 76-key keyboard will not turn on.

Thank you!