Aspire 7720 / 7720G Service Guide
Page 11
... 3 JP34 Speaker (Right) Connector 11 JP9 PCI Express Card Socket 4 JP4 Internal MIC Connector 12 LED1 Power/Suspend LED 5 U5 South Bridge (ICH8M) 13 LED2 Battery Charge/Discharge LED 6 JP6 Internal Track-Pad Connector 14 JP13 Mainboard to Audio Board Connector 7 JP5 Internal Keyboard Connector 15 JP11 Mainboard to USB Board...
... 3 JP34 Speaker (Right) Connector 11 JP9 PCI Express Card Socket 4 JP4 Internal MIC Connector 12 LED1 Power/Suspend LED 5 U5 South Bridge (ICH8M) 13 LED2 Battery Charge/Discharge LED 6 JP6 Internal Track-Pad Connector 14 JP13 Mainboard to Audio Board Connector 7 JP5 Internal Keyboard Connector 15 JP11 Mainboard to USB Board...
Aspire 7720 / 7720G Service Guide
Page 14
Internal microphone for your hands when you use the computer. # Icon Item Description 1 Power indicator Indicates the computer's power status. 2 Battery indicator Indicates the computer's battery status. 3 Line-in jack Accepts audio line-in devices (e.g., audio CD player, stereo walkman). 4 Microphone-in place when closed. 7 Infrared port Interfaces with S/PDIF speakers, ...
Internal microphone for your hands when you use the computer. # Icon Item Description 1 Power indicator Indicates the computer's power status. 2 Battery indicator Indicates the computer's battery status. 3 Line-in jack Accepts audio line-in devices (e.g., audio CD player, stereo walkman). 4 Microphone-in place when closed. 7 Infrared port Interfaces with S/PDIF speakers, ...
Aspire 7720 / 7720G Service Guide
Page 17
Base view # 1 2 3 4 5 & 6 Item Battery bay Battery release latch Battery lock Hard disk bay Ventilation slots and cooling fan Description Houses the computer's battery pack. Note: Do not cover or obstruct the opening of the fan. Chapter 1 11 Houses the computer's hard disk (secured with screws) Enable the computer to -read status indicators. Locks the battery in position. The front panel indicators are visible even when the computer cover is closed up. Indicators The computer has several easy-to stay cool, even after prolonged use. Releases the battery for removal.
Base view # 1 2 3 4 5 & 6 Item Battery bay Battery release latch Battery lock Hard disk bay Ventilation slots and cooling fan Description Houses the computer's battery pack. Note: Do not cover or obstruct the opening of the fan. Chapter 1 11 Houses the computer's hard disk (secured with screws) Enable the computer to -read status indicators. Locks the battery in position. The front panel indicators are visible even when the computer cover is closed up. Indicators The computer has several easy-to stay cool, even after prolonged use. Releases the battery for removal.
Aspire 7720 / 7720G Service Guide
Page 18
Lights when Num Lock is charging. 2. Charging: The light shows amber when the battery is activated. The mail and Web browser buttons are four easy-launch buttons: Web browser, mail, arcade buttons and an Empowering Key " . Fully charged: The ... Cap lock Indicates when the hard disc or optical drive is activated NOTE: 1. Lights when Cap Lock is active. Icon Function Power Battery Description Lights up when the battery is being charged. Wireless LAN Bluetooth Indicates the status of the keyboard there are pre-set the Web browser and mail buttons, run...
Lights when Num Lock is charging. 2. Charging: The light shows amber when the battery is activated. The mail and Web browser buttons are four easy-launch buttons: Web browser, mail, arcade buttons and an Empowering Key " . Fully charged: The ... Cap lock Indicates when the hard disc or optical drive is activated NOTE: 1. Lights when Cap Lock is active. Icon Function Power Battery Description Lights up when the battery is being charged. Wireless LAN Bluetooth Indicates the status of the keyboard there are pre-set the Web browser and mail buttons, run...
Aspire 7720 / 7720G Service Guide
Page 24
... to quickly and easily connect to start the program from the Start menu. T Acer ePower Management extends battery power via versatile usage profiles. T Acer eRecovery Management backs up your new Acer notebook. Empowering Technology password Before using Acer eLock Management and Acer eRecovery Management, you the freedom to manually adjust the settings to external storage media...
... to quickly and easily connect to start the program from the Start menu. T Acer ePower Management extends battery power via versatile usage profiles. T Acer eRecovery Management backs up your new Acer notebook. Empowering Technology password Before using Acer eLock Management and Acer eRecovery Management, you the freedom to manually adjust the settings to external storage media...
Aspire 7720 / 7720G Service Guide
Page 26
... on the lower left-hand side. 2. Select one of the predefined power plan that is closest to apply the setting. 6. Acer ePower Management Acer ePower Management features a straightforward user interface. DC Mode (Battery mode) There are three pre-defined profiles - Change the display and sleep settings as desired. 5. Select a predefined power plan and...), Wired LAN and Optical Device if supported. You can also define the power plan optimized for the newly created power plan. 3. To launch it, select Acer ePower Management from the Empowering Technology interface.
... on the lower left-hand side. 2. Select one of the predefined power plan that is closest to apply the setting. 6. Acer ePower Management Acer ePower Management features a straightforward user interface. DC Mode (Battery mode) There are three pre-defined profiles - Change the display and sleep settings as desired. 5. Select a predefined power plan and...), Wired LAN and Optical Device if supported. You can also define the power plan optimized for the newly created power plan. 3. To launch it, select Acer ePower Management from the Empowering Technology interface.
Aspire 7720 / 7720G Service Guide
Page 27
Acer ePresentation Management Acer ePresentation Management lets you project your system display will be automatically switched out when an external display is implemented in the system, your computer's display to the time shown in the "Remaining Battery Life" field. Chapter 1 21 Battery status For real-time battery life estimates based on current usage, refer to an external device or project using the hot key: Fn + F5. For additional power options, click "More Power option". If auto-detection hardware is connected to the system.
Acer ePresentation Management Acer ePresentation Management lets you project your system display will be automatically switched out when an external display is implemented in the system, your computer's display to the time shown in the "Remaining Battery Life" field. Chapter 1 21 Battery status For real-time battery life estimates based on current usage, refer to an external device or project using the hot key: Fn + F5. For additional power options, click "More Power option". If auto-detection hardware is connected to the system.
Aspire 7720 / 7720G Service Guide
Page 57
...: If you do not have a crisis recovery diskette at hand, then you should create a Crisis Recovery Diskette before you use the Phlash utility. If the battery pack does not contain enough power to run the Phlash utility. Chapter 2 51 Prepare a bootable diskette. 2. Then boot the system from the bootable diskette. BIOS...
...: If you do not have a crisis recovery diskette at hand, then you should create a Crisis Recovery Diskette before you use the Phlash utility. If the battery pack does not contain enough power to run the Phlash utility. Chapter 2 51 Prepare a bootable diskette. 2. Then boot the system from the bootable diskette. BIOS...
Aspire 7720 / 7720G Service Guide
Page 60
Turn off the power to the system and all power and signal cables from the system. 3. Remove the battery pack. 54 Chapter 3 General Information Before You Begin Before proceeding with the disassembly procedure, make sure that you do the following: 1. Unplug the AC adapter and all peripherals. 2.
Turn off the power to the system and all power and signal cables from the system. 3. Remove the battery pack. 54 Chapter 3 General Information Before You Begin Before proceeding with the disassembly procedure, make sure that you do the following: 1. Unplug the AC adapter and all peripherals. 2.
Aspire 7720 / 7720G Service Guide
Page 61
Start Battery Pack B*1 D*1 System Fan B*4 Thermal Module F*1 ODD Module CPU D*5 F*1 Thermal Door Memory Lower Case Assembly F*1 Mimi Cover F*2 HDD Door H*4 HDD Bracket HDD Middle Cover F*2 Keyboard C*2 LCD ...
Start Battery Pack B*1 D*1 System Fan B*4 Thermal Module F*1 ODD Module CPU D*5 F*1 Thermal Door Memory Lower Case Assembly F*1 Mimi Cover F*2 HDD Door H*4 HDD Bracket HDD Middle Cover F*2 Keyboard C*2 LCD ...
Aspire 7720 / 7720G Service Guide
Page 63
Slide the battery release latch then remove the battery. Chapter 3 57 Removing the Battery Pack 1. Unlock the battery lock (move the battery lock to the unlock position as shown). 2.
Slide the battery release latch then remove the battery. Chapter 3 57 Removing the Battery Pack 1. Unlock the battery lock (move the battery lock to the unlock position as shown). 2.
Aspire 7720 / 7720G Service Guide
Page 67
... LAN antennas free from the four snaps as shown. 5. Remove the two screws from the main board. 6. Then disconnect the keyboard cable from inside the battery compartment and the two screws fastening the LCD module. 3. Detach the strip cover from the front side and remove it from the main unit as...
... LAN antennas free from the four snaps as shown. 5. Remove the two screws from the main board. 6. Then disconnect the keyboard cable from inside the battery compartment and the two screws fastening the LCD module. 3. Detach the strip cover from the front side and remove it from the main unit as...
Aspire 7720 / 7720G Service Guide
Page 79
..., reconnect the cable connector and repeat the failing operation. Disconnect the power adapter and install the charged battery pack; Follow the instructions in the test items. 4. Remove the battery pack. 2. Boot from the diagnostics diskette and start the doagmpstotics program (please refer to the diagnostic... memory in the following power sources: 1. Connect the power adapter and check that power is supplied by the battery pack. then check that power is fully installed into the connector. If any of the following list: T "Check the Power Adapter" on...
..., reconnect the cable connector and repeat the failing operation. Disconnect the power adapter and install the charged battery pack; Follow the instructions in the test items. 4. Remove the battery pack. 2. Boot from the diagnostics diskette and start the doagmpstotics program (please refer to the diagnostic... memory in the following power sources: 1. Connect the power adapter and check that power is supplied by the battery pack. then check that power is fully installed into the connector. If any of the following list: T "Check the Power Adapter" on...
Aspire 7720 / 7720G Service Guide
Page 80
... measure the output voltage at the plug of the power adapter for correct continuity and installation. 4. If the voltage is not corrected, see "Check the Battery Pack" on page 88. If the voltage is not correct, go to +20.5V Pin 2: 0V, Ground 1. T If the voltage is within the range, do...
... measure the output voltage at the plug of the power adapter for correct continuity and installation. 4. If the voltage is not corrected, see "Check the Battery Pack" on page 88. If the voltage is not correct, go to +20.5V Pin 2: 0V, Ground 1. T If the voltage is within the range, do...
Aspire 7720 / 7720G Service Guide
Page 81
...can occur when a slight, steady pressure is still less than 50% of time. Remove the battery pack and measure the voltage between battery terminals 1(+) and 6(ground). To check the battery charge operation, use the touchpad, the pointer drifts on recharging or discharging. If the charge ...indicator still does not light up , replace the battery pack. Replace the touchpad. 3. Replace the system board. Check the Battery Pack To check the battery pack, do the following actions one at a time to room temperature. See the following : ...
...can occur when a slight, steady pressure is still less than 50% of time. Remove the battery pack and measure the voltage between battery terminals 1(+) and 6(ground). To check the battery charge operation, use the touchpad, the pointer drifts on recharging or discharging. If the charge ...indicator still does not light up , replace the battery pack. Replace the touchpad. 3. Replace the system board. Check the Battery Pack To check the battery pack, do the following actions one at a time to room temperature. See the following : ...
Aspire 7720 / 7720G Service Guide
Page 83
... will shut down system, no message will be shown before "Equipment Configuration Error") Memory Error at offset: nnnn DIMM System board System battery is specified. Hard disk drive System board Stuck Key see "Keyboard or Auxiliary Input Device Check" on page 72. Unlock key switch ...RAM Failed at offset: nnnn 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. CPU BIOS Update Code Mismatch 2. "Load Default Settings" in BIOS Setup Utility. Keyboard locked - System timer...
... will shut down system, no message will be shown before "Equipment Configuration Error") Memory Error at offset: nnnn DIMM System board System battery is specified. Hard disk drive System board Stuck Key see "Keyboard or Auxiliary Input Device Check" on page 72. Unlock key switch ...RAM Failed at offset: nnnn 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. CPU BIOS Update Code Mismatch 2. "Load Default Settings" in BIOS Setup Utility. Keyboard locked - System timer...
Aspire 7720 / 7720G Service Guide
Page 84
... Operating system not found by POST differed from CMOS Diskette drive A error Incorrect Drive A type - RTC battery System board Run "Load Default Settings" in BIOS Setup Utility. RTC battery System board Enter Setup and see if fixed disk and drive A: are properly identified. System board Run "...Setup Utility. Diskette drive Hard disk drive System board 78 Chapter 4 Default configuration used Memory size found FRU/Action in Sequence RTC battery Run BIOS Setup Utility to reconfigure system time, then reboot system. Check the drive is defined with the proper diskette type in BIOS...
... Operating system not found by POST differed from CMOS Diskette drive A error Incorrect Drive A type - RTC battery System board Run "Load Default Settings" in BIOS Setup Utility. RTC battery System board Enter Setup and see if fixed disk and drive A: are properly identified. System board Run "...Setup Utility. Diskette drive Hard disk drive System board 78 Chapter 4 Default configuration used Memory size found FRU/Action in Sequence RTC battery Run BIOS Setup Utility to reconfigure system time, then reboot system. Check the drive is defined with the proper diskette type in BIOS...
Aspire 7720 / 7720G Service Guide
Page 85
...on and LCD is connected tightly and correctly. But you can see POST on page 73.. Speaker System board Chapter 4 79 Power source (battery pack and power adapter). LED board. See "Power System Check" on an external CRT. Ensure every connector is blank. Error Message List No...-on indicator turns off and LCD is connected tightly and correctly. System board No beep during POST. Reconnect the LCD connectors. Power source (battery pack and power adapter). System board. LCD inverter ID LCD cable LCD inverter LCD System board No beep, power-on indicator turns on and...
...on and LCD is connected tightly and correctly. But you can see POST on page 73.. Speaker System board Chapter 4 79 Power source (battery pack and power adapter). LED board. See "Power System Check" on an external CRT. Ensure every connector is blank. Error Message List No...-on indicator turns off and LCD is connected tightly and correctly. System board No beep during POST. Reconnect the LCD connectors. Power source (battery pack and power adapter). System board. LCD inverter ID LCD cable LCD inverter LCD System board No beep, power-on indicator turns on and...
Aspire 7720 / 7720G Service Guide
Page 90
... Symptom-to execute "Load Setup Default Settings", then reboot system. Battery pack Power adapter Hard drive & battery connection board System board Power source (battery pack and power adapter). System board 84 Chapter 4 Battery pack Power adapter Hard drive & battery connection board System board Power source (battery pack and power adapter). The system doesn't power-off or... doesn't work LCD is too dark LCD brightness cannot be adjusted LCD contrast cannot be adjusted Unreadable LCD screen Missing pels in Sequence Power source (battery pack and power adapter).
... Symptom-to execute "Load Setup Default Settings", then reboot system. Battery pack Power adapter Hard drive & battery connection board System board Power source (battery pack and power adapter). System board 84 Chapter 4 Battery pack Power adapter Hard drive & battery connection board System board Power source (battery pack and power adapter). The system doesn't power-off or... doesn't work LCD is too dark LCD brightness cannot be adjusted LCD contrast cannot be adjusted Unreadable LCD screen Missing pels in Sequence Power source (battery pack and power adapter).
Aspire 7720 / 7720G Service Guide
Page 91
...Error In Windows, multimedia programs, no sound. The system doesn't enter standby mode after opening the LCD. 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 enter hibernation ...Disk (S4)" on page 45. Hard disk connection board Hard disk drive System board See "Save to Disk (S4)" on page 45. Battery pack System board PCMCIA-Related Symptoms Symptom / Error System cannot detect the PC Card (PCMCIA) PCMCIA slot pin is from the keyboard) Hard...
...Error In Windows, multimedia programs, no sound. The system doesn't enter standby mode after opening the LCD. 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 enter hibernation ...Disk (S4)" on page 45. Hard disk connection board Hard disk drive System board See "Save to Disk (S4)" on page 45. Battery pack System board PCMCIA-Related Symptoms Symptom / Error System cannot detect the PC Card (PCMCIA) PCMCIA slot pin is from the keyboard) Hard...