Lenovo G770Hardware MaintenanceManual
Lenovo G770 Hardware Maintenance Manual6Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to electr
Safety information7The safety notices in this section are provided in English, French, German, Hebrew, Italian, Japanese, and Spanish.Safety notices:
Lenovo G770 Hardware Maintenance Manual8Safety notice 2DANGERSome standby batteries contain a small amount of nickel and cadmium. Do not disassemble a
Safety information9Safety notice 3DANGERThe battery pack contains small amounts of nickel. Do not disassemble it, throw it into fire or water, or shor
Lenovo G770 Hardware Maintenance Manual10Safety notice 4DANGERThe lithium battery can cause a fire, an explosion, or a severe burn. Do not recharge it
Safety information11Safety notice 5If the LCD breaks and the fluid from inside the LCD gets into your eyes or on your hands, immediately wash the affe
Lenovo G770 Hardware Maintenance Manual12Safety notice 6DANGERTo avoid shock, do not remove the plastic cover that protects the lower part of the inve
Safety information13Safety notice 8DANGERBefore removing any FRU, turn off the computer, unplug all power cords from electrical outlets, remove the ba
Lenovo G770 Hardware Maintenance Manual14Some models of Lenovo computer are equipped from the factory with an optical storage device such as a CD-ROM
Safety information15A CD-ROM drive, a DVD-ROM drive, or any other storage device installed may contain an embedded Class 3A or Class 3B laser diode. N
Note:Before using this information and the product it supports, be sure to read the general information under “Notices” on page 84.First Edition (Apri
Lenovo G770 Hardware Maintenance Manual16This chapter presents the following important service information:• “Strategy for replacing FRUs” on page 16–
Important service information17Use the following strategy to prevent unnecessary expense for replacing and servicing FRUs:• If you are instructed to r
Lenovo G770 Hardware Maintenance Manual18RoHS, The Restriction of Hazardous Substances in Electrical and Electronic Equipment Directive (2002/95/EC) i
General checkout19This chapter presents the following information:• “What to do first” on page 20• “Power system checkout” on page 21Before you go to
Lenovo G770 Hardware Maintenance Manual20When you do return an FRU, you must include the following information in the parts exchange form or parts ret
General checkout21To verify a symptom, follow the steps below:1. Turn off the computer.2. Remove the battery pack.3. Connect the AC adapter.4. Make su
Lenovo G770 Hardware Maintenance Manual22Perform operational charging. If the battery status indicator or icon does not light on, remove the battery p
Related service information23This chapter presents the following information:• “Restoring the factory contents by using Recovery Disc Set” on page 23•
Lenovo G770 Hardware Maintenance Manual247. When all of the data has been copied from the last disc in the set, remove the disc and restart the comput
Related service information25Note: Power management modes are not supported for APM operating system.To reduce power consumption, the computer has thr
iiiAbout this manual...ivSafety information...1General safety ...
Lenovo G770 Hardware Maintenance Manual26Hibernation modeIn hibernation mode, the following occurs:• The system status, RAM, VRAM, and setup data are
Lenovo G77027This chapter presents the following product-specific service references and product-specific parts information:• “Specifications” on page
Lenovo G770 Hardware Maintenance Manual28Table 1. Specifications (continued)Feature DescriptionI/O port • External monitor connector• Stereo headphone
Lenovo G77029The system status indicators below show the computer status:Status indicatorsG770dcefa b
Lenovo G770 Hardware Maintenance Manual30Table 2. Status indicatorsIndicator MeaningCaps lock White: Caps Lock mode is enabled. You can enter all alph
Lenovo G77031The following table shows the function of each combination of Fn with a function key.Table 3. Fn key combinationsKey combination Descript
Lenovo G770 Hardware Maintenance Manual32This section presents notices related to removing and replacing parts. Read this section carefully before rep
Lenovo G77033This section presents exploded figures with the instructions to indicate how to remove and replace the FRU. Make sure to observe the foll
Lenovo G770 Hardware Maintenance Manual341010 Battery packFigure 1. Removal steps of battery packUnlock the battery release lever . Holding the batte
Lenovo G770351020 Dummy cardFor access, remove this FRU:• “1010 Battery pack” on page 34Figure 2. Removal steps of dummy cardsRemove the dummy card in
ivThis manual contains service and reference information for the following Lenovo product:Lenovo G770Use this manual to troubleshoot problems.The manu
Lenovo G770 Hardware Maintenance Manual361030 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot compartment coverFor access, remove this FRU:• “1
Lenovo G770371040 Hard disk driveFor access, remove these FRUs in order:• “1010 Battery pack” on page 34• “1030 Hard disk drive(HDD)/Memory/Mini PCI E
Lenovo G770 Hardware Maintenance Manual38Take out the hard disk drive secured in a metal frame .Remove four screws and detach the metal frame from
Lenovo G770391050 Optical driveFor access, remove this FRU:• “1010 Battery pack” on page 34Figure 5. Removal steps of optical driveRemove the screw ,
Lenovo G770 Hardware Maintenance Manual401060 DIMMFor access, remove these FRUs in order:• “1010 Battery pack” on page 34• “1030 Hard disk drive(HDD)/
Lenovo G770411070 PCI Express Mini Card for wireless LAN/WANFor access, remove these FRUs in order:• “1010 Battery pack” on page 34• “1030 Hard disk d
Lenovo G770 Hardware Maintenance Manual42Figure 7. Removal steps of PCI Express Mini Card for wireless LAN/WAN (continued)Remove the card in the direc
Lenovo G770431080 KeyboardFor access, remove this FRU:• “1010 Battery pack” on page 34Figure 8. Removal steps of keyboardRemove the screw .Loosen the
Lenovo G770 Hardware Maintenance Manual44Figure 8. Removal steps of keyboard (continued)Lift the keyboard a little , and then detach the connector in
Lenovo G770451090 Keyboard bezelFor access, remove these FRUs in order:• “1010 Battery pack” on page 34• “1030 Hard disk drive(HDD)/Memory/Mini PCI Ex
Safety information1This chapter presents the following safety information that you need to get familiar with before you service a Lenovo computer:• “
Lenovo G770 Hardware Maintenance Manual46Figure 9. Removal steps of keyboard bezel (continued)Remove four screws .Step Screw (quantity) Color TorqueM
Lenovo G77047Figure 9. Removal steps of keyboard bezel (continued)Detach three FPC connectors in the direction shown by arrows .When installing: Make
Lenovo G770 Hardware Maintenance Manual48Figure 9. Removal steps of keyboard bezel (continued)Remove the keyboard bezel in the direction shown by arro
Lenovo G770491100 System boardFor access, remove these FRUs in order:• “1010 Battery pack” on page 34• “1030 Hard disk drive(HDD)/Memory/Mini PCI Expr
Lenovo G770 Hardware Maintenance Manual50Figure 10. Removal steps of system boardRemove five screws . Unplug three microphone connectors in the direc
Lenovo G77051Figure 10. Removal steps of system board (continued)Remove the system board in the direction shown by arrow .When installing: When attac
Lenovo G770 Hardware Maintenance Manual521110 LCD unitFor access, remove these FRUs in order:• “1010 Battery pack” on page 34• “1030 Hard disk drive(H
Lenovo G77053Figure 11. Removal steps of LCD unit (continued)Remove the LCD unit in the direction shown by arrows .ccc
Lenovo G770 Hardware Maintenance Manual541120 Fan assembly and Heat Sink assemblyFor access, remove these FRUs in order:• “1010 Battery pack” on page
Lenovo G77055Figure 12. Removal steps of fan assembly and heat sink assembly (continued)Remove four screws and three screws .Lift the fan assembly
Lenovo G770 Hardware Maintenance Manual2Follow these rules below to ensure general safety:• Observe a good housekeeping in the area where the machines
Lenovo G770 Hardware Maintenance Manual561130 CPUFor access, remove these FRUs in order:• “1010 Battery pack” on page 34• “1030 Hard disk drive(HDD)/M
Lenovo G770571140 Base cover, speakers, bluetooth card and power assemblyFor access, remove these FRUs in order:• “1010 Battery pack” on page 34• “103
Lenovo G770 Hardware Maintenance Manual58Remove four screws , and then remove the speakers in the direction shown by arrows .Step Screw (quantity) Co
Lenovo G77059Note: Applying labels to the base coverThe new base cover FRU is shipped with a kit containing labels of several kinds. When you replace
Lenovo G770 Hardware Maintenance Manual601150 LCD front bezelFor access, remove these FRUs in order:• “1010 Battery pack” on page 34• “1030 Hard disk
Lenovo G770611160 LCD panel, LCD cable and hingesFor access, remove these FRUs in order:• “1010 Battery pack” on page 34• “1030 Hard disk drive(HDD)/M
Lenovo G770 Hardware Maintenance Manual62Figure 16. Removal steps of LCD panel, LCD cable and hinges (continued)Remove eight screws and the hinges i
Lenovo G77063Figure 16. Removal steps of LCD panel, LCD cable and hinges (continued)Note: The LCD cables are attached to the LCD panel by a metal conn
Lenovo G770 Hardware Maintenance Manual641170 Integrated cameraFor access, remove these FRUs in order:• “1010 Battery pack” on page 34• “1030 Hard dis
Lenovo G770651180 Antenna assembly and LCD coverFor access, remove these FRUs in order:• “1010 Battery pack” on page 34• “1030 Hard disk drive(HDD)/Me
Safety information3Observe the following rules when working on electrical equipments.• Find the room emergency power-off (EPO) switch, disconnecting s
Lenovo G770 Hardware Maintenance Manual66Front viewIntegrated camera (Select models only)Wireless module antennas (Select models only)Computer display
Lenovo G77067Right-side viewAC power adapter jackUSB portOptical driveMicrophone jackHeadphone jackabcde21354
Lenovo G770 Hardware Maintenance Manual68Bottom and Left-side viewKensington slotFan louversVGA portRJ-45 portHDMI port (Select models only)USB portBa
Lenovo G77069This section presents the following service parts:• “Overall” on page 70• “LCD FRUs” on page 75• “Keyboard” on page 77• “Miscellaneous pa
Lenovo G770 Hardware Maintenance Manual70OverallG770114151621b2271011201717a2313368912421819dG770c5e
Lenovo G77071Table 4. Parts list—OverallNo. FRU FRU no. CRU ID1 LCD unit (see “LCD FRUs” on page 75.)2 Keyboard (see “Keyboard” on page 77.)3 PIWG4 UP
Lenovo G770 Hardware Maintenance Manual72Table 4. Parts list—Overall (continued)No. FRU FRU no. CRU ID13 DDRIII 1333 4GB, M471B5273CH0-CH9 (Rev C /2Gb
Lenovo G77073Table 4. Parts list—Overall (continued)No. FRU FRU no. CRU ID20 Hard disk drive, 250G 5400rpm SATA, Hitachi HTS545025B9A300 250G 9NB16004
Lenovo G770 Hardware Maintenance Manual74Table 4. Parts list—Overall (continued)No. FRU FRU no. CRU ID20 Hard disk drive, 320G 7200rpm SATA, Hitachi H
Lenovo G77075LCD FRUsIn Lenovo G770, there are following types of LCDs.• “17.3 -in. HD TFT”7263458
Lenovo G770 Hardware Maintenance Manual4• Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors, no
Lenovo G770 Hardware Maintenance Manual7617.3-in. HD TFTTable 5. Parts list—17.3-in. HD TFTNo. FRU FRU no. CRU ID1 PIWG4 LCD BEZEL W/CAMERA HOLE 3105
Lenovo G77077KeyboardTable 6. Parts list—KeyboardLanguage P/N CRU IDG770SunrexBulgarian 25012419 **Czechoslovakian 25012420International English 25012
Lenovo G770 Hardware Maintenance Manual78Table 6. Parts list—Keyboard (continued)Language P/N CRU IDG770(continued)Chicony (continued)Brazilian 250123
Lenovo G77079Miscellaneous partsTable 7. Parts list—Miscellaneous partsFRU P/N CRU IDSystem miscellaneous parts:• (a) PIWG1 HDD BRACKET AM0GL000600•
Lenovo G770 Hardware Maintenance Manual80AC adaptersTable 8. Parts list—3-pin AC adaptersFRU P/N CRU ID65W, Delta ADP-65KH BD 20V/3.25A adapter 360019
Lenovo G77081Power cordsA Lenovo power cord for a specific country or region is usually available only in that country or region:Table 9. Parts list—3
Lenovo G770 Hardware Maintenance Manual82Table 9. Parts list—3-pin power cords (continued)Region P/N CRU IDBrazil• Longwell LP-46+H03VV-F+LS-18 1m1450
Lenovo G77083Table 9. Parts list—3-pin power cords (continued)Region P/N CRU IDKorea• Volex LP-486+KTLH03VV-F+LS-5 1m145000533 *Australia• Volex LP-23
Lenovo G770 Hardware Maintenance Manual84Lenovo may not offer the products, services, or features discussed in this document in all countries. Consult
Notices85Any performance data contained herein was determined in a controlled environment. Therefore, the result obtained in other operating environme
Safety information5The purpose of this inspection guide is to assist you in identifying potential unsafe conditions. As each machine was designed and
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