Yamaha S90 - System Down...

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Dean

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Recently, after turning on the S90 (original keyboard), the display will read:

=== system down ===

unregistered interrupt
error code 00000420
occurrence at 8c007620
content of SR 40000000

Does anyone know what this means?

Thanks!
Dean

Posted : 05/03/2017 1:31 am

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