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4-2
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Power On Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
No Display Issues. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
LCD Picture Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Internal Keyboard Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Touchpad Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Internal Speaker Failure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Internal Microphone Failure . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
USB Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
Other Functions Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Intermittent Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
Undetermined Problems . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
Post Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
Summary of Contents for Aspire 4250
Page 1: ...Aspire 4250 SERVICEGUIDE ...
Page 10: ...x ...
Page 11: ...CHAPTER 1 Hardware Specifications ...
Page 14: ...1 4 ...
Page 56: ...1 46 Hardware Specifications and Configurations ...
Page 57: ...CHAPTER 2 System Utilities ...
Page 85: ...CHAPTER 3 Machine Maintenance Procedures ...
Page 87: ...3 3 LVDS Cable Removal 3 43 LVDS Cable Installation 3 44 ...
Page 88: ...3 4 ...
Page 129: ...CHAPTER 4 Troubleshooting ...
Page 135: ...Troubleshooting 4 7 9 If the issue is still not resolved refer to Online Support Information ...
Page 153: ...CHAPTER 5 Jumper and Connector Locations ...
Page 160: ...5 8 Jumper and Connector Locations ...
Page 161: ...CHAPTER 6 FRU Field Replaceable Unit List ...
Page 162: ...6 2 Exploded Diagrams 6 4 FRU List 6 7 Screw List 6 20 ...
Page 181: ...CHAPTER 7 Model Definition and Configuration ...
Page 182: ...1 2 Acer Aspire 4250 7 1 ...
Page 186: ...7 4 Model Definition and Configuration ...
Page 187: ...CHAPTER 8 Test Compatible Components ...
Page 188: ...8 2 Microsoft Windows 7 Environment Test 8 4 ...
Page 197: ...CHAPTER 9 Online Support Information ...
Page 198: ...9 2 Introduction 9 3 ...
Page 200: ...9 4 Online Support Information ...