Acer Aspire 7720g Service Guide
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Chapter 485 Battery can’t be charged See “Check the Battery Pack” on page 75. Battery pack System board PCMCIA-Related Symptoms Symptom / ErrorAction in Sequence System cannot detect the PC Card (PCMCIA) PCMCIA slot assembly System board PCMCIA slot pin is damaged. PCMCIA slot assembly Memory-Related Symptoms Symptom / ErrorAction in Sequence Memory count (size) appears different from actual size.Enter BIOS Setup Utility to execute “Load Default Settings, then reboot system. DIMM System board Speaker-Related Symptoms Symptom / ErrorAction in Sequence In Windows, multimedia programs, no sound comes from the computer. Audio driver Speaker System board Internal speakers make noise or emit no sound. Speaker System board Power Management-Related Symptoms Symptom / ErrorAction in Sequence The system will not enter hibernation See “Save to Disk (S4)” on page 45. Keyboard (if control is from the keyboard) Hard disk drive System board The system doesnt enter hibernation mode and four short beeps every minute.Press Fn+ oand see if the computer enters hibernation mode. Touchpad Keyboard Hard disk connection board Hard disk drive System board The system doesn’t enter standby mode after closing the LCDSee “Save to Disk (S4)” on page 45. LCD cover switch System board The system doesnt resume from hibernation mode.See “Save to Disk (S4)” on page 45. Hard disk connection board Hard disk drive System board The system doesnt resume from standby mode after opening the LCD.See “Save to Disk (S4)” on page 45. LCD cover switch System board Power-Related Symptoms Symptom / ErrorAction in Sequence
86Chapter 4 NOTE: If you cannot find a symptom or an error in this list and the problem remains, see “Undetermined Problems” on page 88. Battery fuel gauge in Windows doesn’t go higher than 90%. Remove battery pack and let it cool for 2 hours. Refresh battery (continue use battery until power off, then charge battery). Battery pack System board System hangs intermittently. Reconnect hard disk/CD-ROM drives. Hard disk connection board System board Peripheral-Related Symptoms Symptom / ErrorAction in Sequence System configuration does not match the installed devices. Enter BIOS Setup Utility to execute “Load Default Settings”, then reboot system. Reconnect hard disk/CD-ROM/diskette drives. External display does not work correctly. Press Fn+F5, LCD/CRT/Both display switching System board USB does not work correctly System board Print problems. Ensure the “Parallel Port” in the “Onboard Devices Configuration” of BIOS Setup Utility is set to Enabled. Onboard Devices Configuration Run printer self-test. Printer driver Printer cable Printer System Board Serial or parallel port device problems. Ensure the “Serial Port” in the Devices Configuration” of BIOS Setup Utility is set to Enabled. Device driver Device cable Device System board Keyboard/Touchpad-Related Symptoms Symptom / ErrorAction in Sequence Keyboard (one or more keys) does not work. Reconnect the keyboard cable. Keyboard System board Touchpad does not work. Reconnect touchpad cable. Touchpad board System board Modem-Related Symptoms Symptom / ErrorAction in Sequence Internal modem does not work correctly. Modem phone port modem combo board System board Power Management-Related Symptoms Symptom / ErrorAction in Sequence
Chapter 487 Intermittent Problems Intermittent system hang problems can be caused by a variety of reasons that have nothing to do with a hardware defect, such as: cosmic radiation, electrostatic discharge, or software errors. FRU replacement should be considered only when a recurring problem exists. When analyzing an intermittent problem, do the following: 1.Run the advanced diagnostic test for the system board in loop mode at least 10 times. 2.If no error is detected, do not replace any FRU. 3.If any error is detected, replace the FRU. Rerun the test to verify that there are no more errors.
88Chapter 4 Undetermined Problems The diagnostic problems does not identify which adapter or device failed, which installed devices are incorrect, whether a short circuit is suspected, or whether the system is inoperative. Follow these procedures to isolate the failing FRU (do not isolate non-defective FRU). NOTE: Verify that all attached devices are supported by the computer. NOTE: Verify that the power supply being used at the time of the failure is operating correctly. (See “Power System Check” on page 73.): 1.Power-off the computer. 2.Visually check them for damage. If any problems are found, replace the FRU. 3.Remove or disconnect all of the following devices: TNon-Acer devices TPrinter, mouse, and other external devices TBattery pack THard disk drive TDIMM TCD-ROM/Diskette drive Module TPC Cards 4.Power-on the computer. 5.Determine if the problem has changed. 6.If the problem does not recur, reconnect the removed devices one at a time until you find the failing FRU. 7.If the problem remains, replace the following FRU one at a time. Do not replace a non-defective FRU: TSystem board TLCD assembly
Chapter 589 Top View 1 JP1 LCD Connector 9 JP36 Mainboard to LED Board Connector 2 JP3 Speaker (Left) Connector 10 U12 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 Connector 8 JP2 Mainboard to Button Board Connector16 JP12 Bluetooth Module Connector 1 1 234 23 4 578 9 6 578 9 10 10 141412121313 1515 1616 1111 10 14 12 1315 16 11 6 Jum per and Connector Locations Chapter 5
90Chapter 5 Bottom View 1 PJP1 DC-in Power Jack 14 JP24 TV-out Connector 2 PJP2 Battery Connector 15 JP26 IEEE1394 Connector 3 JP14 CRT Connector 16 JP27 SATA HDD Connector 4 JP15 DVI-D Connector 17 U23 North Bridge (965PM/965GM) 5 JP25 ODD Connector 18 U28 6 JP20 Mini Card (WLAN) Socket 19 U29 Volume Control 7 JP19 Mini Card (TV-Tuner) Socket 20 JP28 DDRII Memory Socket 8 JP17 MDC Connector 21 JP29 DDRII Memory Socket 9 JP22 CPU Socket 22 JP31 Headphone/SPDIF Jack 10 JP16 Internal Fan Connector 23 JP32 Mic-in Jack 11 JP19 VGA Board Connector 24 U33 Audio Codec Controller 12 JP18 RJ45 (LAN) Connector 25 JP33 Line-in Jack 13 JP23 USB (Dual) Connectors 1 1 23 4 23 4 5789 6 578910 10 1414 1212 1313 1515 1616 1111 10 14 12 13 15 1617 17 1818 1919 2020 2222 17 18 19 26 2626 20 22 23 232324 2424 25 2525 21 2121 11 6
Chapter 691 This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of Aspire Poyang. Refer to this chapter whenever ordering for parts to repair or for RMA (Return Merchandise Authorization). Please note that WHEN ORDERING FRU PARTS, you should check the most up-to-date information available on your regional web or channel. For whatever reasons a part number change is made, it will not be noted on the printed Service Guide. For ACER AUTHORIZED SERVICE PROVIDERS, your Acer office may have a DIFFERENT part number code from those given in the FRU list of this printed Service Guide. You MUST use the local FRU list provided by your regional Acer office to order FRU parts for repair and service of customer machines. NOTE: To scrap or to return the defective parts, you should follow the local government ordinance or regulations on how to dispose it properly, or follow the rules set by your regional Acer office on how to return it. FRU (Field Replaceable Unit) List Chapter 6
92Chapter 6 Aspire Poyang Exploded Diagram CategoryNo.Part Name and DescriptionAcer Part No. ADAPTER ADAPTER 90W 3PIN DELTA ADP-90SB BBACAP.09001.003 ADAPTER 90W 3PIN DELTA ADP-90SB BBEAAP.09001.013 ADAPTER 90W 3PIN LITEON PA-1900- 24ARAP.09003.006 ADAPTER 90W 3PIN LITEON PA-1900- 04 LRAP.09003.011 BATTERY BATTERY LI-ION 6CELLS 4KMAH PANASONIC PA 3S2P 4.0AH 7 01K 0FABT.00605.015 BATTERY LI-ION 6CELLS 4KMAH SANYO SA 3S2P 4AH 7 01K 0FABT.00603.033 BATTERY LI-ION 6CELLS 4KMAH SIMPLO SP PA 3S2P 4.0AH 7 01K 0FABT.00607.010 BATTERY LI-ION 6CELLS 4KMAH SONY SY 3S2P 4.0AH 7 01K 0FABT.00604.018 BATTERY LI-ION 8CELLS 4.8MAH PANASONIC PA 4S2P 4.8AH 7 01K 0FABT.00805.011 BATTERY LI-ION 8CELLS 4.8MAH SANYO SA 4S2P 4.8AH 7 01K 0FABT.00803.024 BATTERY LI-ION 8CELLS 4.8MAH SIMPLO SP PA 4S2P 4.8AH 7 01K 0FABT.00807.014 BATTERY LI-ION 8CELLS 4.8MAH SONY SY 4S2P 4.8AH 7 01K 0FABT.00804.020 BOARD MODEM BOARD FX.22500.009 BLUETOOTH BOARD 54.AHE02.001 MINI WLAN/B INTEL 802.11 B/G KI.GLN01.005 MINI WLAN/B INTEL 802.11 A/B/G MOW1 (MM#872612)KI.GLN01.001 MINI WLAN/B INTEL 802.11 A/B/G MOW2 (MM#872612)KI.GLN01.002 MINI WLAN/B INTEL 802.11 A/B/G ROW (MM#872612)KI.GLN01.003 MINI WLAN/B INTEL 802.11 A/B/G JPN (MM#875652)KI.GLN01.004 MINI WLAN/B INTEL 802.11 4965ANG MOW1 (MM#886224)KI.KDN01.001 MINI WLAN/B INTEL 802.11 4965ANG MOW2 (MM#886220)KI.KDN01.002
Chapter 693 MINI WLAN/B INTEL 802.11 4965ANG ROW (MM#886434)KI.KDN01.003 MINI WLAN/B INTEL 802.11 4965ANG JP (MM#886437)KI.KDN01.004 BUTTON BOARD W/CABLE 17 55.AHJ02.001 AUDIO BOARD 17 55.AHJ02.002 LED BOARD W/CABLE 17 55.AHJ02.003 USB BOARD FOR TV 17 55.AHJ02.004 USB BOARD FOR W/O TV 55.AHJ02.005 RF BOARD FOR DTV 55.AHJ02.006 ODD BOARD 17 55.AHJ02.007 HDD BOARD 17 55.AHJ02.008 VGA BOARD-M71M 128MB VG.71M02.002 VGA BOARD-M71M 256MB W/HDCP VG.71M02.001 CABLE RJ11 CABLE 17 50.AHJ02.001 FFC CABLE - T/P TO MB 50.AHJ02.002 CategoryNo.Part Name and DescriptionAcer Part No.
94Chapter 6 BLUE TOOTH CABLE 17 50.AHJ02.003 AUDIO CABLE 17 50.AHJ02.004 USB CABLE 17 50.AHJ02.005 RF CABLE 17 50.AHJ02.006 7 PIN MINI-DIN S-VIDEO TO 4 CABLE 50.ABD02.001 PAL TO NTSC CONNECTOR 20.ABD02.001 SMB JACK 50.ABD02.002 DVB-T ANT 50.ABD02.003 DC-IN CABLE (90W) UMA/DIS 50.AHH02.001 POWER CORD US 3 PIN 27.TAVV5.001 POWER CORD EU 3 PIN 27.TAVV5.002 POWER CORD AUS 3 PIN 27.TAVV5.003 POWER CORD UK 3 PIN 27.TAVV5.004 POWER CORD CHINA 3 PIN 27.TAVV5.005 POWER CORD SWISS 3 PIN 27.TAVV5.006 POWER CORD ITALIAN 3 PIN 27.TAVV5.007 POWER CORD DENMARK 3 PIN 27.TAVV5.008 POWER CORD JP 3 PIN 27.TAVV5.009 POWER CORD SOUTH AFRICA 3 PIN 27.TAVV5.010 POWER CORD KOREA 3 PIN 27.TAVV5.011 POWER CORD ISRAEL 3 PIN 27.TAVV5.012 POWER CORD INDIA 3 PIN 27.TAVV5.013 POWER CORD TWN 3 PIN 27.TAVV5.014 CASE/COVER/BRACKET ASSEMBLY MIDDLE COVER 17 42.AHJ02.001 UPPER CASE ASSY 17 W/TP TP BRACKET TP FFC60.AHJ02.001 LOWER CASE ASSY UMA W/TV-17 60.AHJ02.002 LOWER CASE ASSY UMA W/O TV-17 60.AHJ02.003 LOWER CASE ASSY DIS W/TV-17 60.AHK02.001 LOWER CASE ASSY DIS W/O TV-17 60.AHK02.002 THERMAL DOOR 17 UMA 42.AHJ02.002 CategoryNo.Part Name and DescriptionAcer Part No.