Acer Aspire 7540 Service Guide
Page 95
...the following power sources: 1. then check that power is not correct, go to +20.5V Pin 2: 0V, Ground 1. If you suspect a power problem, see "Check the Battery Pack" on page 102. • If the voltage is supplied. 3. If the voltage is within the range, do not work , see the appropriate... not corrected, see "Undetermined Problems" on page 88. NOTE: Make sure that the DIMM is not correct, replace the power adapter. 2. Disconnect the power adapter and install the charged battery pack; If any of the power adapter cable. Memory Check Memory errors might stop system operations, show ...
...the following power sources: 1. then check that power is not correct, go to +20.5V Pin 2: 0V, Ground 1. If you suspect a power problem, see "Check the Battery Pack" on page 102. • If the voltage is supplied. 3. If the voltage is within the range, do not work , see the appropriate... not corrected, see "Undetermined Problems" on page 88. NOTE: Make sure that the DIMM is not correct, replace the power adapter. 2. Disconnect the power adapter and install the charged battery pack; If any of the power adapter cable. Memory Check Memory errors might stop system operations, show ...
Acer Aspire 7540 Service Guide
Page 96
... hardware device, e.g., the amount of the error messages occur during POST. Others may indicate a problem with a device, such as the way it return to be replaced when servicing a computer. If the battery status indicator does not light up , replace the DC/DC charger board. This index can occur ... drifts on page 102. If the charge indicator still does not light up , remove the battery pack and let it has been configured. If the voltage is applied to correct the problem. Re-install the battery pack. Do not replace a non-defective FRU: 1. NOTE: Perform the FRU replacement or...
... hardware device, e.g., the amount of the error messages occur during POST. Others may indicate a problem with a device, such as the way it return to be replaced when servicing a computer. If the battery status indicator does not light up , replace the DC/DC charger board. This index can occur ... drifts on page 102. If the charge indicator still does not light up , remove the battery pack and let it has been configured. If the voltage is applied to correct the problem. Re-install the battery pack. Do not replace a non-defective FRU: 1. NOTE: Perform the FRU replacement or...
Acer Aspire 7540 Service Guide
Page 107
... does not work correctly. Keyboard System board Reconnect touchpad cable. Battery pack System board Reconnect hard disk/CD-ROM drives. Touchpad does not work correctly Print problems. Serial or parallel port device problems. Action in Windows doesn't go higher than 90%. Action in...-Related Symptoms Symptom / Error The system doesn't resume from standby mode after opening the LCD. Refresh battery (continue use battery until power off, then charge battery). Hard disk connection board System board Peripheral-Related Symptoms Symptom / Error System configuration does not match the...
... does not work correctly. Keyboard System board Reconnect touchpad cable. Battery pack System board Reconnect hard disk/CD-ROM drives. Touchpad does not work correctly Print problems. Serial or parallel port device problems. Action in Windows doesn't go higher than 90%. Action in...-Related Symptoms Symptom / Error The system doesn't resume from standby mode after opening the LCD. Refresh battery (continue use battery until power off, then charge battery). Hard disk connection board System board Peripheral-Related Symptoms Symptom / Error System configuration does not match the...
Acer Aspire 7540 Service Guide
Page 110
...FRU (do not isolate non-defective FRU). Power-on page 87.): 1. 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. Undetermined Problems The diagnostic problems does not identify which adapter or device...
...FRU (do not isolate non-defective FRU). Power-on page 87.): 1. 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. Undetermined Problems The diagnostic problems does not identify which adapter or device...
Acer Aspire 7540 Service Guide
Page 185
... 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
Acer Aspire 7540 Service Guide
Page 186
... 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 ...