
viii
Camera Module Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38
Camera Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . 3-39
LCD Panel Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40
LCD Panel Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-41
LCD Bracket Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42
LCD Bracket Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42
LVDS Cable Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-43
LVDS Cable Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-44
CHAPTER 4
Troubleshooting
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
CHAPTER 5
Jumper and Connector Locations
Mainboard Jumper and Connector Locations . . . . . . . . . 5-3
Clearing Password Check and BIOS Recovery . . . . . . . . . 5-5
Clearing Password Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Clear CMOS Jumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
BIOS Recovery by Crisis Disk. . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Содержание Aspire 4250
Страница 1: ...Aspire 4250 SERVICEGUIDE ...
Страница 10: ...x ...
Страница 11: ...CHAPTER 1 Hardware Specifications ...
Страница 14: ...1 4 ...
Страница 33: ...Hardware Specifications and Configurations 1 23 System Block Diagram Figure 1 11 System Block Diagram ...
Страница 56: ...1 46 Hardware Specifications and Configurations ...
Страница 57: ...CHAPTER 2 System Utilities ...
Страница 85: ...CHAPTER 3 Machine Maintenance Procedures ...
Страница 87: ...3 3 LVDS Cable Removal 3 43 LVDS Cable Installation 3 44 ...
Страница 88: ...3 4 ...
Страница 129: ...CHAPTER 4 Troubleshooting ...
Страница 135: ...Troubleshooting 4 7 9 If the issue is still not resolved refer to Online Support Information ...
Страница 136: ...4 8 Troubleshooting LCD Picture Failure 0 If the LCD fails perform the following Figure 4 3 LCD Failure ...
Страница 153: ...CHAPTER 5 Jumper and Connector Locations ...
Страница 160: ...5 8 Jumper and Connector Locations ...
Страница 161: ...CHAPTER 6 FRU Field Replaceable Unit List ...
Страница 162: ...6 2 Exploded Diagrams 6 4 FRU List 6 7 Screw List 6 20 ...
Страница 181: ...CHAPTER 7 Model Definition and Configuration ...
Страница 182: ...1 2 Acer Aspire 4250 7 1 ...
Страница 186: ...7 4 Model Definition and Configuration ...
Страница 187: ...CHAPTER 8 Test Compatible Components ...
Страница 188: ...8 2 Microsoft Windows 7 Environment Test 8 4 ...
Страница 197: ...CHAPTER 9 Online Support Information ...
Страница 198: ...9 2 Introduction 9 3 ...
Страница 200: ...9 4 Online Support Information ...