Acer Aspire 4250 Notebook Service Manual
Page 8
... 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 ...
... 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 ...
Acer Aspire 4250 Notebook Service Manual
Page 131
NOTE: NOTE: The diagnostic tests are a guide for Acer products only. If possible, verify the symptoms by step procedures are designed to the problem. 3. Table 4-1. Common Problems Symptoms (Verified) Power On Issues No Display Issues LCD Picture Failure Internal Keyboard Failure Touchpad Failure Internal Speaker Failure Internal Microphone Failure USB Failure Other Functions Failure Intermittent...
NOTE: NOTE: The diagnostic tests are a guide for Acer products only. If possible, verify the symptoms by step procedures are designed to the problem. 3. Table 4-1. Common Problems Symptoms (Verified) Power On Issues No Display Issues LCD Picture Failure Internal Keyboard Failure Touchpad Failure Internal Speaker Failure Internal Microphone Failure USB Failure Other Functions Failure Intermittent...