Acer Aspire 7540 Service Guide
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...and repeat the failing operation. Power System Check To verify the symptom of the problem, power on the computer using each of the following figure Pin 1: +19 to +20.5V Pin 2: 0V, Ground 1. Remove the battery pack. 2. See the following power sources: 1. Memory Check Memory errors might ... power adapter cable from the computer and measure the output voltage at the plug of the power adapter cable. If you suspect a power problem, see "Check the Battery Pack" on page 88. Boot from the power adapter does not always indicate a defect. 3. A loose connection can cause an error...
...and repeat the failing operation. Power System Check To verify the symptom of the problem, power on the computer using each of the following figure Pin 1: +19 to +20.5V Pin 2: 0V, Ground 1. Remove the battery pack. 2. See the following power sources: 1. Memory Check Memory errors might ... power adapter cable from the computer and measure the output voltage at the plug of the power adapter cable. If you suspect a power problem, see "Check the Battery Pack" on page 88. Boot from the power adapter does not always indicate a defect. 3. A loose connection can cause an error...
Acer Aspire 7540 Service Guide
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... actions one at a time to correct the problem. If the battery status indicator does not light up, remove the battery pack and let it has been configured. If the charge indicator still does not light up , replace the battery pack. Reconnect the touchpad cables. 2. NOTE:...not replace a non-defective FRU: 1. The following : From Software: 1. From Hardware: 1. Re-install the battery pack. After you identify first the problem is not listed, see "Undetermined Problems" on the screen for a short time. This symptom is listed first. Check out the Power Management in ...
... actions one at a time to correct the problem. If the battery status indicator does not light up, remove the battery pack and let it has been configured. If the charge indicator still does not light up , replace the battery pack. Reconnect the touchpad cables. 2. NOTE:...not replace a non-defective FRU: 1. The following : From Software: 1. From Hardware: 1. Re-install the battery pack. After you identify first the problem is not listed, see "Undetermined Problems" on the screen for a short time. This symptom is listed first. Check out the Power Management in ...
Acer Aspire 7540 Service Guide
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... in Sequence Reconnect the keyboard cable. Battery pack System board Reconnect hard disk/CD-ROM drives. Hard disk connection board System board Peripheral-Related Symptoms Symptom / Error System configuration does not match ... Keyboard (one or more keys) does not work correctly Print problems. Serial or parallel port device problems. Action in Sequence See "Save to Disk (S4)" on page 26. Refresh battery (continue use battery until power off, then charge battery). LCD cover switch System board Remove battery pack and let it cool for 2 hours. Reconnect hard disk...
... in Sequence Reconnect the keyboard cable. Battery pack System board Reconnect hard disk/CD-ROM drives. Hard disk connection board System board Peripheral-Related Symptoms Symptom / Error System configuration does not match ... Keyboard (one or more keys) does not work correctly Print problems. Serial or parallel port device problems. Action in Sequence See "Save to Disk (S4)" on page 26. Refresh battery (continue use battery until power off, then charge battery). LCD cover switch System board Remove battery pack and let it cool for 2 hours. Reconnect hard disk...
Acer Aspire 7540 Service Guide
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Remove or disconnect all attached devices are found, replace the FRU. 3. If the problem remains, replace the following devices: • Non-Acer devices • Printer, mouse, and other external devices • Battery pack • Hard disk drive • DIMM • CD-ROM/Diskette drive Module... • PC Cards 4. Power-on page 87.): 1. Determine if the problem has changed. 6. Visually ...
Remove or disconnect all attached devices are found, replace the FRU. 3. If the problem remains, replace the following devices: • Non-Acer devices • Printer, mouse, and other external devices • Battery pack • Hard disk drive • DIMM • CD-ROM/Diskette drive Module... • PC Cards 4. Power-on page 87.): 1. Determine if the problem has changed. 6. Visually ...
Acer Aspire 7540 Service Guide
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... B Back cover removing 46 battery pack removing 45 BIOS 19 vendor 19 Version 19 BIOS Recovery 105 BIOS Recovery Boot Block 107 BIOS Recovery by Crisis Disk 107 steps 107 BIOS Recovery Hotkey 107 BIOS Utility 27-39 Navigating 28 System Security 38 block diagram Aspire 7540 Series 5 Aspire 7738/7738G Series and... 15 brightness up 15 display 15 Screen blank 15 speaker 15 System property 15 volume down 15 volume up 15 HW Gap position 105 I indicator battery 10 power-on 10 Indicators 10 Intermittent Problems 101 K Key Special 15 key Backup 11 177
... B Back cover removing 46 battery pack removing 45 BIOS 19 vendor 19 Version 19 BIOS Recovery 105 BIOS Recovery Boot Block 107 BIOS Recovery by Crisis Disk 107 steps 107 BIOS Recovery Hotkey 107 BIOS Utility 27-39 Navigating 28 System Security 38 block diagram Aspire 7540 Series 5 Aspire 7738/7738G Series and... 15 brightness up 15 display 15 Screen blank 15 speaker 15 System property 15 volume down 15 volume up 15 HW Gap position 105 I indicator battery 10 power-on 10 Indicators 10 Intermittent Problems 101 K Key Special 15 key Backup 11 177
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... on indicator 7 O Online Support Information 175 P password changing 35 removing 35 setting 34 178 Power Adapter Check 87 Power System Check 87 Battery Pack 88 Power-On Self-Test (POST) Error Message 88 Processor 19 S Screw List 42 System 4 Block Diagram 4 System Check Procedures ...86 System Memory 19 System Utilities 17, 27 System utilities Acer GridVista 18 T Test Compatible Components 171 touchpad using 11 Touchpad Check 88 Troubleshooting 85 U Undetermined Problems 102 utility BIOS 27-39 V view bottom 10 left 8 rear 9 right 9 view front 6 ...
... on indicator 7 O Online Support Information 175 P password changing 35 removing 35 setting 34 178 Power Adapter Check 87 Power System Check 87 Battery Pack 88 Power-On Self-Test (POST) Error Message 88 Processor 19 S Screw List 42 System 4 Block Diagram 4 System Check Procedures ...86 System Memory 19 System Utilities 17, 27 System utilities Acer GridVista 18 T Test Compatible Components 171 touchpad using 11 Touchpad Check 88 Troubleshooting 85 U Undetermined Problems 102 utility BIOS 27-39 V view bottom 10 left 8 rear 9 right 9 view front 6 ...
