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Pete, Engineer
Category: Electronic Musical Instruments
Satisfied Customers: 19398
Experience:  Over 16 years of experience in the Electronics and IT industries.
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Roland a30, connected wrong polarity, how to fix it?

Customer Question

Roland a30, connected wrong polarity, how to fix it?
Submitted: 2 years ago.
Category: Electronic Musical Instruments
Expert:  Pete replied 2 years ago.
Hi there,
If the wrong polarity was connected and the keyboard no longer turns on, then the main circuit board is likely irrepairably damaged and will need to be replaced.