HP HP-20S - Page 10

Appendix
109 Assistance, Batteries, Memory, and Service
109 Obtaining Help in Operating the Calculator
109 Answers to Common Questions
111 Power and Batteries
111 Low Power Annunciator ]
111 Installing Batteries
113 Resetting the Calculator
114 Erasing Continuous Memory
114 Environmental Limits
114 Determining if the Calculator Requires Service
116 Confirming Calculator Operation—the Self-Test
117 Limited One-Year Warranty
117 What is Covered
117 What is Not Covered
118 Consumer Transactions in the United Kingdom
118 If the Calculator Requires Service
118 Obtaining Service
119 Service Charge
119 Shipping Instructions
120 Warranty on Service
120 Service Agreements
120 Regulatory Information
122 Messages
124 Index
Contents