Owner's Manual
Page 140
...You may not apply to you. Please be free of defects in material and/or workmanship, Yamaha and/or its authorized representative will be prepared to provide proof purchase date (sales receipt, credit card copy, etc.) when requesting service and/or parts under warranty to: the... service is not a service representative of a retail outlet authorized by Yamaha to sell the product, an authorized service center, or an authorized service representative of products: DGX, YPG SERIES OF Portable Grand ELECTRONIC KEYBOARDS If during the first 90 days that immediately follows the purchase...
...You may not apply to you. Please be free of defects in material and/or workmanship, Yamaha and/or its authorized representative will be prepared to provide proof purchase date (sales receipt, credit card copy, etc.) when requesting service and/or parts under warranty to: the... service is not a service representative of a retail outlet authorized by Yamaha to sell the product, an authorized service center, or an authorized service representative of products: DGX, YPG SERIES OF Portable Grand ELECTRONIC KEYBOARDS If during the first 90 days that immediately follows the purchase...