4-4
Troubleshooting
Power On Issues
0
If the system does not power on, perform the following, one at a time, to correct the problem.
Do not replace a non-defective FRU:
Figure 4-1.
Power On Issue
Computer Shuts Down Intermittently
0
If the system powers off at intervals, perform the following.
1.
Makes sure the power cable is properly connected to the computer and the electrical
outlet.
2.
Remove all extension cables between the computer and the outlet.
3.
Remove all surge protectors between the computer and the electrical outlet. Plug the
computer directly into a known serviceable electrical outlet.
4.
Disconnect the power and open the casing to check the Thermal Unit (refer to Thermal
Unit Failure) and fan airways are free of obstructions.
5.
Remove all external and non-essential hardware connected to the computer that are not
necessary to boot the computer to the failure point.
6.
Remove any recently installed software.
7.
If the Issue is still not resolved, refer to
Online Support Information
.
Содержание Aspire 4743
Страница 1: ... Aspire 4743 4743G 4743Z 4743ZG SERVICEGUIDE ...
Страница 10: ...10 ...
Страница 11: ...CHAPTER 1 Hardware Specifications ...
Страница 14: ...1 4 ...
Страница 32: ...1 22 Hardware Specifications and Configurations System Block Diagram Figure 1 10 System Block Diagram ...
Страница 50: ...1 40 Hardware Specifications and Configurations ...
Страница 51: ...CHAPTER 2 System Utilities ...
Страница 70: ...2 20 System Utilities ...
Страница 71: ...CHAPTER 3 Machine Maintenance ...
Страница 74: ...3 4 ...
Страница 82: ...3 12 Machine Maintenance 4 Lift the base door to remove Figure 3 9 Base Door ...
Страница 85: ...Machine Maintenance 3 15 6 Detach the bracket from the HDD Figure 3 14 HDD Bracket ...
Страница 87: ...Machine Maintenance 3 17 4 Pull the WLAN module out of the slot Figure 3 17 WLAN Module ...
Страница 95: ...Machine Maintenance 3 25 8 Open the connector latch then detach cable to remove keyboard Figure 3 30 Keyboard ...
Страница 100: ...3 30 Machine Maintenance 6 Lift the speakers from the upper cover Figure 3 40 Speaker Cable ...
Страница 106: ...3 36 Machine Maintenance 4 Lift the USB board from the lower cover Figure 3 50 USB Board ...
Страница 113: ...Machine Maintenance 3 43 4 Remove the thermal module from the mainboard Figure 3 62 Thermal Module Screws ...
Страница 136: ...3 66 Machine Maintenance 3 Secure the bezel with the two 2 screw covers Figure 3 102 LCD Bezel Screw Covers ...
Страница 151: ...Machine Maintenance 3 81 3 Connect and lock the touchpad cable to the touchpad board Figure 3 128 Touchpad Cable ...
Страница 156: ...3 86 Machine Maintenance 5 Connect the speaker cable to the power button board Figure 3 137 Speaker Cable ...
Страница 172: ...3 102 Machine Maintenance Remove the Dummy Card 0 1 Insert the dummy card into the slot until it clicks into place ...
Страница 174: ...3 104 Machine Maintenance ...
Страница 175: ...CHAPTER 4 Troubleshooting ...
Страница 207: ...CHAPTER 5 Jumper and Connector Locations ...
Страница 208: ...2 2 Clearing Password Check and BIOS Recovery 5 5 Clearing Password Check 5 5 Performing a BIOS recovery 5 6 ...
Страница 215: ...CHAPTER 6 FRU List ...
Страница 216: ...6 2 Aspire 4743 4743G 4743Z 4743ZG Exploded Diagrams 6 4 Main Assembly 6 4 LCD Assembly 6 5 ...
Страница 234: ...6 20 FRU List ...
Страница 235: ...CHAPTER 7 Model Definition and Configuration ...
Страница 236: ...7 2 Aspire 4743 4743G 4743Z 4743ZG 7 3 ...
Страница 270: ...7 36 Model Definition and Configuration ...
Страница 338: ...7 104 Model Definition and Configuration ...
Страница 339: ...CHAPTER 8 Test Compatible Components ...
Страница 340: ...8 2 Microsoft Windows 7 Environment Test 8 4 ...
Страница 351: ...CHAPTER 9 Online Support Information ...
Страница 352: ...9 2 Introduction 9 3 ...
Страница 354: ...9 4 Online Support Information ...