Roland A-90 EX Service Notes

This Roland A-90 EX Service Notes manual is a comprehensive guide that includes the following topics:

• Specifications
• Location of controls
• Exploded view and parts list
• Block diagram
• Keyboard parts list and disassembly
• Pedal unit parts list
• Test mode
• Saving and loading user data
• Initializing the internal RAM
• Circuit boards
• Circuit diagrams

These service notes are invaluable for both professional mechanics and DIY enthusiasts.