583cx Drawer wont open?

There are many reasons for a drawer not opening. It may be a faulty solenoid. They can sometimes blow the driver transistor in the drawer power circuit. It is probably a fault that will need to be looked at on a circuit level.
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If anyone is looking for a Royal 583cx manual, try here:

http://the-checkout-tech.com/manuals/cashregisters/royal1.php

Registerman
June 2010