Aspire 7720 / 7720G Service Guide
Page 77
...for computer problems. NOTE: The diagnostic tests are indicated. Verify the symptoms by attempting to . No beep or error codes are intended to test only Acer products. LCD display problems or others). Chapter 4 Troubleshooting Use the following table with the verified symptom to determine which... re-create the failure by running the diagnostic test or by repeating the same operation. 3. Non-Acer products, prototype cards, or modified options can give false errors and invalid system responses. 1. POST does not complete. Symptoms cannot be re-created (intermittent problems).
...for computer problems. NOTE: The diagnostic tests are indicated. Verify the symptoms by attempting to . No beep or error codes are intended to test only Acer products. LCD display problems or others). Chapter 4 Troubleshooting Use the following table with the verified symptom to determine which... re-create the failure by running the diagnostic test or by repeating the same operation. 3. Non-Acer products, prototype cards, or modified options can give false errors and invalid system responses. 1. POST does not complete. Symptoms cannot be re-created (intermittent problems).
Aspire 7720 / 7720G Service Guide
Page 78
... program. 2. Do the following to a controller, driver, or diskette. If an error occurs, reconnect the connector on the system board. The following to isolate the problem to fail. If the error still remains: 1. If the internal keyboard does not work or an unexpected character appears...-ROM Drive Check Do the following auxiliary input devices are supported by this computer: T Numeric keypad T External keyboard 72 Chapter 4 If the error still remains: 1. Replace the external diskette drive/CD-ROM module. 3. Reconnect the external diskette drive/CD-ROM module. 2. The label can ...
... program. 2. Do the following to a controller, driver, or diskette. If an error occurs, reconnect the connector on the system board. The following to isolate the problem to fail. If the error still remains: 1. If the internal keyboard does not work or an unexpected character appears...-ROM Drive Check Do the following auxiliary input devices are supported by this computer: T Numeric keypad T External keyboard 72 Chapter 4 If the error still remains: 1. Replace the external diskette drive/CD-ROM module. 3. Reconnect the external diskette drive/CD-ROM module. 2. The label can ...
Aspire 7720 / 7720G Service Guide
Page 79
Memory check Memory errors might stop system operations, show error messages on the screen, or hang the system. 1. Connect the power adapter and check that power is fully installed into the connector. Go to main ... suspect a power problem, see the appropriate power supply check in the test items. 4. Press F2 in the following power sources: 1. A loose connection can cause an error. Power System Check To verify the symptom of the problem, power on the computer using each of these devices do not work, reconnect the cable...
Memory check Memory errors might stop system operations, show error messages on the screen, or hang the system. 1. Connect the power adapter and check that power is fully installed into the connector. Go to main ... suspect a power problem, see the appropriate power supply check in the test items. 4. Press F2 in the following power sources: 1. A loose connection can cause an error. Power System Check To verify the symptom of the problem, power on the computer using each of these devices do not work, reconnect the cable...
Aspire 7720 / 7720G Service Guide
Page 82
... FRU to be replaced when servicing a computer. The most likely cause is not listed, see "Undetermined Problems" on the screen and the error symptoms classified by function. This index can also help you make changes in the computer. NOTE: Most of memory installed. Others may indicate ...listed first. Do not replace a non-defective FRU. The following lists the error messages that the BIOS displays on page 88. Power-On Self-Test (POST) Error Message The POST error message index lists the error message and their possible causes. NOTE: Perform the FRU replacement or actions in...
... FRU to be replaced when servicing a computer. The most likely cause is not listed, see "Undetermined Problems" on the screen and the error symptoms classified by function. This index can also help you make changes in the computer. NOTE: Most of memory installed. Others may indicate ...listed first. Do not replace a non-defective FRU. The following lists the error messages that the BIOS displays on page 88. Power-On Self-Test (POST) Error Message The POST error message index lists the error message and their possible causes. NOTE: Perform the FRU replacement or actions in...
Aspire 7720 / 7720G Service Guide
Page 83
... DIMM System board Extended RAM Failed at xxxx:xxxx:xxxxh (R:xxxxh, W:xxxxh) Real Time Clock Error CMOS Battery Bad CMOS Checksum Error System disabled. System timer error RTC battery Run BIOS Setup Utility to reconfigure system time, then reboot system. Incorrect password is ...see "Keyboard or Auxiliary Input Device Check" on page 72. Keyboard locked - Index of Error Messages Error Code List Error Codes 006 010 070 071 072 110 Error Messages Equipment Configuration Error Causes: 1. Default configuration used RTC battery Run BIOS Setup Utility to reconfigure system time, ...
... DIMM System board Extended RAM Failed at xxxx:xxxx:xxxxh (R:xxxxh, W:xxxxh) Real Time Clock Error CMOS Battery Bad CMOS Checksum Error System disabled. System timer error RTC battery Run BIOS Setup Utility to reconfigure system time, then reboot system. Incorrect password is ...see "Keyboard or Auxiliary Input Device Check" on page 72. Keyboard locked - Index of Error Messages Error Code List Error Codes 006 010 070 071 072 110 Error Messages Equipment Configuration Error Causes: 1. Default configuration used RTC battery Run BIOS Setup Utility to reconfigure system time, ...
Aspire 7720 / 7720G Service Guide
Page 84
... board DIMM BIOS ROM System board None BIOS ROM System board Run "Load Default Settings" in BIOS Setup Utility. run SETUP System cache error - DIMM System board Check the drive is defined with the proper diskette type in BIOS Setup Utility. RTC battery System board Run "Load... Default Settings" in BIOS Setup Utility See "External Diskette Drive Check" on page 72. Error Message List Error Messages Real time clock error Previous boot incomplete - Cache disabled CPU ID: DMA Test Failed Software NMI Failed Fail-Safe Timer NMI Failed Device Address Conflict ...
... board DIMM BIOS ROM System board None BIOS ROM System board Run "Load Default Settings" in BIOS Setup Utility. run SETUP System cache error - DIMM System board Check the drive is defined with the proper diskette type in BIOS Setup Utility. RTC battery System board Run "Load... Default Settings" in BIOS Setup Utility See "External Diskette Drive Check" on page 72. Error Message List Error Messages Real time clock error Previous boot incomplete - Cache disabled CPU ID: DMA Test Failed Software NMI Failed Fail-Safe Timer NMI Failed Device Address Conflict ...
Aspire 7720 / 7720G Service Guide
Page 85
... is blank. No beep, power-on indicator turns on page 73.. See "Power System Check" on indicator turns off and LCD is blank. Error Message List No beep Error Messages FRU/Action in Sequence No beep, power-on page 73.. Reconnect the DIMM. LCD inverter ID LCD cable LCD inverter LCD System...
... is blank. No beep, power-on indicator turns on page 73.. See "Power System Check" on indicator turns off and LCD is blank. Error Message List No beep Error Messages FRU/Action in Sequence No beep, power-on page 73.. Reconnect the DIMM. LCD inverter ID LCD cable LCD inverter LCD System...
Aspire 7720 / 7720G Service Guide
Page 87
... Display external L2 cache size Load custom defaults (optional) Display shadow-area message Display possible high address for UMB recovery Display error messages Check for configuration errors Check for keyboard errors Set up hardware interrupt vectors Initialize coprocessor if present Disable onboard Super I/O ports and IRQs Late POST device initialization Detect and install...
... Display external L2 cache size Load custom defaults (optional) Display shadow-area message Display possible high address for UMB recovery Display error messages Check for configuration errors Check for keyboard errors Set up hardware interrupt vectors Initialize coprocessor if present Disable onboard Super I/O ports and IRQs Late POST device initialization Detect and install...
Aspire 7720 / 7720G Service Guide
Page 88
...MPTABLE for multi-processor boards Install CD ROM for boot Clear huge ES segment register Fixup Multi Processor table Search for errors POST done- Check for SMART drive (optional) Shadow option ROMs Set up Power Management Initialize security engine (optional)... hard-disk controllers Initialize local-bus hard-disk controllers Jump to boot with INT 19 Initialize POST Error Manager (PEM) Initialize error logging Initialize error display function Initialize system error handler PnPnd dual CMOS (optional) Initialize notebook docking (optional) Initialize notebook docking late Force check ...
...MPTABLE for multi-processor boards Install CD ROM for boot Clear huge ES segment register Fixup Multi Processor table Search for errors POST done- Check for SMART drive (optional) Shadow option ROMs Set up Power Management Initialize security engine (optional)... hard-disk controllers Initialize local-bus hard-disk controllers Jump to boot with INT 19 Initialize POST Error Manager (PEM) Initialize error logging Initialize error display function Initialize system error handler PnPnd dual CMOS (optional) Initialize notebook docking (optional) Initialize notebook docking late Force check ...
Aspire 7720 / 7720G Service Guide
Page 90
...the power switch for more than 4 seconds. Reconnect the LCD connectors. Action in Sequence Enter BIOS Utility to -FRU Error Message LCD-Related Symptoms Symptom / Error LCD backlight doesn't work ). Keyboard (if contrast and brightness function key doesn't work LCD is too dark LCD brightness... LCD cable LCD inverter LCD System board LCD inverter ID LCD inverter LCD cable LCD System board Indicator-Related Symptoms Symptom / Error Action in characters Abnormal screen Wrong color displayed LCD has extra horizontal or vertical lines displayed. Battery pack Power adapter Hard drive...
...the power switch for more than 4 seconds. Reconnect the LCD connectors. Action in Sequence Enter BIOS Utility to -FRU Error Message LCD-Related Symptoms Symptom / Error LCD backlight doesn't work ). Keyboard (if contrast and brightness function key doesn't work LCD is too dark LCD brightness... LCD cable LCD inverter LCD System board LCD inverter ID LCD inverter LCD cable LCD System board Indicator-Related Symptoms Symptom / Error Action in characters Abnormal screen Wrong color displayed LCD has extra horizontal or vertical lines displayed. Battery pack Power adapter Hard drive...
Aspire 7720 / 7720G Service Guide
Page 91
...reboot system. Action in Sequence See "Save to Disk (S4)" on page 75. Battery pack System board PCMCIA-Related Symptoms Symptom / Error System cannot detect the PC Card (PCMCIA) PCMCIA slot pin is from the keyboard) Hard disk drive System board Press Fn+oand see...System board PCMCIA slot assembly Memory-Related Symptoms Symptom / Error Memory count (size) appears different from the computer. Power-Related Symptoms Symptom / Error Battery can't be charged Action in Sequence Power Management-Related Symptoms Symptom / Error The system will not enter hibernation The system doesn't ...
...reboot system. Action in Sequence See "Save to Disk (S4)" on page 75. Battery pack System board PCMCIA-Related Symptoms Symptom / Error System cannot detect the PC Card (PCMCIA) PCMCIA slot pin is from the keyboard) Hard disk drive System board Press Fn+oand see...System board PCMCIA slot assembly Memory-Related Symptoms Symptom / Error Memory count (size) appears different from the computer. Power-Related Symptoms Symptom / Error Battery can't be charged Action in Sequence Power Management-Related Symptoms Symptom / Error The system will not enter hibernation The system doesn't ...
Aspire 7720 / 7720G Service Guide
Page 92
...does not match the installed devices. Modem phone port modem combo board System board NOTE: If you cannot find a symptom or an error in Sequence Reconnect the keyboard cable. Reconnect hard disk/CD-ROM drives. Action in this list and the problem remains, see "...is set to Enabled. USB does not work correctly. Touchpad does not work correctly. Touchpad board System board Modem-Related Symptoms Symptom / Error Action in Windows doesn't go higher than 90%. Battery pack System board System hangs intermittently. Device driver Device cable Device System board Keyboard...
...does not match the installed devices. Modem phone port modem combo board System board NOTE: If you cannot find a symptom or an error in Sequence Reconnect the keyboard cable. Reconnect hard disk/CD-ROM drives. Action in this list and the problem remains, see "...is set to Enabled. USB does not work correctly. Touchpad does not work correctly. Touchpad board System board Modem-Related Symptoms Symptom / Error Action in Windows doesn't go higher than 90%. Battery pack System board System hangs intermittently. Device driver Device cable Device System board Keyboard...
Aspire 7720 / 7720G Service Guide
Page 93
... detected, replace the FRU. When analyzing an intermittent problem, do with a hardware defect, such as: cosmic radiation, electrostatic discharge, or software errors. If no more errors. If any error is detected, do not replace any FRU. 3. Intermittent Problems Intermittent system hang problems can be considered only when a recurring problem exists. Rerun the test...
... detected, replace the FRU. When analyzing an intermittent problem, do with a hardware defect, such as: cosmic radiation, electrostatic discharge, or software errors. If no more errors. If any error is detected, do not replace any FRU. 3. Intermittent Problems Intermittent system hang problems can be considered only when a recurring problem exists. Rerun the test...
Aspire 7720 Series User's Guide EN
Page 19
...-to-disk recovery 79 Password 79 Using software 80 Playing DVD movies 80 Power management 81 Acer eRecovery Management 82 Create backup 82 Burn backup disc 83 Restore and recovery 83 Troubleshooting 84 Troubleshooting tips 84 Error messages 84 Regulations and safety notices 86 FCC notice 86 Modem notices 87 Laser compliance...
...-to-disk recovery 79 Password 79 Using software 80 Playing DVD movies 80 Power management 81 Acer eRecovery Management 82 Create backup 82 Burn backup disc 83 Restore and recovery 83 Troubleshooting 84 Troubleshooting tips 84 Error messages 84 Regulations and safety notices 86 FCC notice 86 Modem notices 87 Laser compliance...
Aspire 7720 Series User's Guide EN
Page 64
... Always have the following information: Name Address Telephone number Machine and model type Serial number Date of purchase Please consult http://global.acer.com. You are error messages or beeps reported by an International Travelers Warranty (ITW) that gives you travel, to receive the benefits from our support.... A list of beeps). If the country you are there to give you need to provide the following information available when you call Acer for online service, and please be at your computer when you can reduce the amount of time a call takes and help solve your...
... Always have the following information: Name Address Telephone number Machine and model type Serial number Date of purchase Please consult http://global.acer.com. You are error messages or beeps reported by an International Travelers Warranty (ITW) that gives you travel, to receive the benefits from our support.... A list of beeps). If the country you are there to give you need to provide the following information available when you call Acer for online service, and please be at your computer when you can reduce the amount of time a call takes and help solve your...
Aspire 7720 Series User's Guide EN
Page 105
... size mismatch Press (during POST) to open the computer yourself; Error messages If you solve problems. If the system reports an error message or an error symptom occurs, see "Error messages" below. CMOS checksum error Contact your dealer or an authorized service center. Disk boot failure ... floppy drive (A:), then press to more serious problems require opening up the computer. Keyboard error or no Contact your dealer or an authorized service center. Hard disk 0 error Contact your dealer or authorized service center for assistance. Do not attempt to enter the ...
... size mismatch Press (during POST) to open the computer yourself; Error messages If you solve problems. If the system reports an error message or an error symptom occurs, see "Error messages" below. CMOS checksum error Contact your dealer or an authorized service center. Disk boot failure ... floppy drive (A:), then press to more serious problems require opening up the computer. Keyboard error or no Contact your dealer or an authorized service center. Hard disk 0 error Contact your dealer or authorized service center for assistance. Do not attempt to enter the ...
Aspire 7720 Series User's Guide EN
Page 119
... M media access on local trips 67 troubleshooting 84 turning off xiv connections network 72 D display hotkeys 31 troubleshooting 40 DVD 80 DVD movies playing 80 E error messages 84 Euro 32 F FAQ.
... M media access on local trips 67 troubleshooting 84 turning off xiv connections network 72 D display hotkeys 31 troubleshooting 40 DVD 80 DVD movies playing 80 E error messages 84 Euro 32 F FAQ.