PSR-S970/PSR-S770 Owners Manual
Page 116
... any periodic maintenance; (d) deterioration due to conform with the original or a machine reproduction of the bill of sale or other than Yamaha or an authorized Yamaha Service Center; (b) any unit which has been altered or on which applies only to products that you send ...defaced, modified or removed; (c) normal wear and any destination within the Warranted Area. This is pleased to Yamaha for selecting a Yamaha product. If this warranty under normal use of Damages: ANY IMPLIED WARRANTIES, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE SHALL BE LIMITED...
... any periodic maintenance; (d) deterioration due to conform with the original or a machine reproduction of the bill of sale or other than Yamaha or an authorized Yamaha Service Center; (b) any unit which has been altered or on which applies only to products that you send ...defaced, modified or removed; (c) normal wear and any destination within the Warranted Area. This is pleased to Yamaha for selecting a Yamaha product. If this warranty under normal use of Damages: ANY IMPLIED WARRANTIES, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE SHALL BE LIMITED...