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Amazon.com: MyVolts 9V Power Supply Adaptor Compatible with/Replacement for Casio CTK-4000 Keyboard - US Plug : Musical Instruments
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Keyboard Repair Part Replacement White Keys for Casio CTK-330 CTK-411 CTK-431 CTK-451 CTK-471 CTK-501 CTK-496
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CTK-330 Keyboard Help! I just got myself this vintage beauty, but I can't find: 1. how to transpose? 2. what are the "power modes for"?? any help would be much appreciated. :
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