Dell P2422HA - Page 5

│ 5
Troubleshooting ........................... 59
Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Built-in diagnostics . . . . . . . . . . . . . . . . . . . . 60
Common problems . . . . . . . . . . . . . . . . . . . . . 62
Product-specific problems . . . . . . . . . . . . . . . . 64
Universal Serial Bus (USB) specific problems . . . . . . 65
Appendix................................. 66
FCC notices (U.S. Only) and other regulatory
information . . . . . . . . . . . . . . . . . . . . . . . . . 66
Contacting Dell. . . . . . . . . . . . . . . . . . . . . . . 66