Toshiba satellite A20 series Maintenance Manual page 52

2 Troubleshooting Procedures
20. CD-RW media that supports four-speed writing and is formatted with DirectCD (media
manufactured by RICOH or Mitsubishi Chemical are recommended).
21. RJ11 connector checker and modular cable or RJ11 connector checker LED
22. LAN wraparound connector
23. Music CD
24. DVD that isn't a test media
2-2
2.1 Troubleshooting
Satellite A20 Maintenance Manual (960-444)