Yamaha A-720 Service Manual

Contains crucial safety warnings, service procedures, and important advisories for personnel.

Identifies special components that must be replaced with exact original specifications.

Procedure for verifying electrical safety and insulation of exposed surfaces after service.

Procedure to adjust the idling current using specified test points and voltage.

Steps to verify the correct voltage across terminals for Auto Class A mode operation.

A categorized listing of electronic components used in the amplifier.