TravelMate 2490 - 4230 - 4280 Service Guide
Page 95
...In Windows, multimedia programs, no sound. The system doesn't enter standby mode after opening the LCD. LCD cover switch System board Chapter 4 87 Touchpad Keyboard Hard disk connection board Hard disk drive System board See "Save to Disk (S4)" on page 42. Battery pack System board PCMCIA-Related Symptoms... Symptom / Error The system will not enter hibernation The system doesn't enter hibernation mode and four short beeps every minute. Audio driver Speaker System board Speaker System board Action in Sequence Enter BIOS Setup Utility to Disk (S4)" on page 71.
...In Windows, multimedia programs, no sound. The system doesn't enter standby mode after opening the LCD. LCD cover switch System board Chapter 4 87 Touchpad Keyboard Hard disk connection board Hard disk drive System board See "Save to Disk (S4)" on page 42. Battery pack System board PCMCIA-Related Symptoms... Symptom / Error The system will not enter hibernation The system doesn't enter hibernation mode and four short beeps every minute. Audio driver Speaker System board Speaker System board Action in Sequence Enter BIOS Setup Utility to Disk (S4)" on page 71.
TravelMate 2490 - 4230 - 4280 Service Guide
Page 96
...list and the problem remains, see "Undetermined Problems" on page 84. 88 Chapter 4 Reconnect hard disk/CD-ROM/diskette drives. Touchpad board System board Modem-Related Symptoms Symptom / Error Action in Sequence Internal modem does not work . Reconnect hard disk/CD-ROM ... System board Peripheral-Related Symptoms Symptom / Error System configuration does not match the installed devices. Device driver Device cable Device System board Keyboard/Touchpad-Related Symptoms Symptom / Error Keyboard (one or more keys) does not work correctly. Keyboard System board Reconnect...
...list and the problem remains, see "Undetermined Problems" on page 84. 88 Chapter 4 Reconnect hard disk/CD-ROM/diskette drives. Touchpad board System board Modem-Related Symptoms Symptom / Error Action in Sequence Internal modem does not work . Reconnect hard disk/CD-ROM ... System board Peripheral-Related Symptoms Symptom / Error System configuration does not match the installed devices. Device driver Device cable Device System board Keyboard/Touchpad-Related Symptoms Symptom / Error Keyboard (one or more keys) does not work correctly. Keyboard System board Reconnect...