Yamaha Portatone PSR-540 Service Manual - Page 9
Browse online or download pdf Service Manual for Electronic Keyboard Yamaha Portatone PSR-540. Yamaha Portatone PSR-540 10 pages.
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PSR-540
C2
WARNING
Components having special characteristics are marked
and must be replaced
with parts having specification equal to those originally installed.
Note: See parts list for details of circuit board component parts.