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Troubleshooting
4-5
No Display Issues
0
If the Display doesn’t work, perform the following:
Figure 4-2.
No Display Issue
No POST or Video
0
If the POST or video does not appear, perform the following, one at a time.
1. Make sure that internal display is selected. Switching between internal and external by
pressing
Fn+F5
. Reference Product pages for specific model procedures.
2. Make sure the computer has power by checking for one of the following:
Fans start up
Status LEDs illuminate
If no power, Refer to
Power On Issues
.
3. Drain stored power by removing the power cable and battery. Hold the power button for 10
seconds.
4. Connect the power and reboot the computer.
Start
NG
NG
NG
NG
NG
OK
OK
OK
OK
OK
Replace LCD
module
LCD
moduleok
Replace M/B
Can
power on
RAM
module
well
connected
RAM
module
OK
lcd cable
well
connected
Go to no power
Trouble shooting
step
Connect it well
Replace RAM
module
Connect it well
Summary of Contents for TravelMate 8481
Page 1: ...i TravelMate 8481 8481G 8481T 8481TG SERVICE GUIDE ...
Page 10: ...vi ...
Page 11: ...CHAPTER 1 Hardware Specification ...
Page 14: ...1 4 ...
Page 53: ...CHAPTER 2 System Utilities ...
Page 83: ...CHAPTER 3 Machine Maintenance ...
Page 121: ...CHAPTER 4 Troubleshooting ...
Page 151: ...CHAPTER 5 Jumper and Connector Locations ...
Page 160: ...5 10 ...
Page 161: ...CHAPTER 6 FRU List ...
Page 162: ...6 2 Exploded Diagrams 6 4 Main Assembly 6 4 LCD Assembly 6 6 FRU List 6 7 Screw List 6 14 ...
Page 175: ...CHAPTER 7 Model Definition and Configuration ...
Page 176: ...7 2 TravelMate 8481 7 3 TravelMate 8481G 7 11 TravelMate 8481T 7 14 TravelMate 8481TG 7 35 ...
Page 215: ...CHAPTER 8 Test Compatible Components ...
Page 216: ...8 2 Microsoft Windows 7 Environment Test 8 4 TravelMate 8481 8481G 8481T 8481TG 8 4 ...
Page 226: ...8 12 Test Compatible Components ...
Page 227: ...CHAPTER 9 Online Support Information ...
Page 228: ...9 2 Introduction 9 3 ...