Lenovo G455/G555 UserGuide V1.0
Page 33
...required, and a fee will be enabled. The computer power is plugged into a working electrical outlet. - If you do not find your computer to a Lenovo authorized servicer or a marketing representative to the computer and the power cord is on . I turn on the computer, nothing... appears on the screen, have the system board replaced. OneKey Recovery. When I forgot my password. ...
...required, and a fee will be enabled. The computer power is plugged into a working electrical outlet. - If you do not find your computer to a Lenovo authorized servicer or a marketing representative to the computer and the power cord is on . I turn on the computer, nothing... appears on the screen, have the system board replaced. OneKey Recovery. When I forgot my password. ...
Lenovo G455/G555 UserGuide V1.0
Page 65
...the policy that applies on your computer in radio frequency safety standards and recommendations, Lenovo believes the integrated wireless cards are uncertain of the airplane communication or navigation system...Broadband feature near blasting. However, the level of energy emitted is turned on board of your health Wireless LAN PCI Express Mini Card and Bluetooth Daughter Card emit... Express Mini Card or Bluetooth Daughter Card may be well aware that there is a low-power radio transceiver. Refer to other devices or services is explicitly prohibited by wireless devices like other...
...the policy that applies on your computer in radio frequency safety standards and recommendations, Lenovo believes the integrated wireless cards are uncertain of the airplane communication or navigation system...Broadband feature near blasting. However, the level of energy emitted is turned on board of your health Wireless LAN PCI Express Mini Card and Bluetooth Daughter Card emit... Express Mini Card or Bluetooth Daughter Card may be well aware that there is a low-power radio transceiver. Refer to other devices or services is explicitly prohibited by wireless devices like other...
Lenovo G555 Hardware Maintenance Manual V2.0
Page 3
... Recovery 23 Restore of factory default 23 Using recovery discs 23 Passwords 24 Power-on password 24 Supervisor password 24 Power management 25 Screen blank mode 25 Sleep (standby) mode 25 Hibernation mode 26 Lenovo G555 27 Specifications 27 Status indicators 29 Fn key combinations 31 FRU replacement notices...CPU 44 1090 PCI Express Mini Card for wireless LAN/WAN 45 1100 Keyboard cover and power board............47 1110 Keyboard 50 1120 LCD unit 52 1130 Keyboard bezel 56 1140 System board 60 1150 Bluetooth daughter card, speakers and base cover 63 1160 LCD front bezel 67 ...
... Recovery 23 Restore of factory default 23 Using recovery discs 23 Passwords 24 Power-on password 24 Supervisor password 24 Power management 25 Screen blank mode 25 Sleep (standby) mode 25 Hibernation mode 26 Lenovo G555 27 Specifications 27 Status indicators 29 Fn key combinations 31 FRU replacement notices...CPU 44 1090 PCI Express Mini Card for wireless LAN/WAN 45 1100 Keyboard cover and power board............47 1110 Keyboard 50 1120 LCD unit 52 1130 Keyboard bezel 56 1140 System board 60 1150 Bluetooth daughter card, speakers and base cover 63 1160 LCD front bezel 67 ...
Lenovo G555 Hardware Maintenance Manual V2.0
Page 25
... the computer. 21 If the voltage is used. •• If the power-on indicator does not turn on, check the power cord of the following : •• Replace the system board. •• If the problem continues, go to "Lenovo G555" on the computer. Checking operational charging To check whether the battery charges properly...
... the computer. 21 If the voltage is used. •• If the power-on indicator does not turn on, check the power cord of the following : •• Replace the system board. •• If the problem continues, go to "Lenovo G555" on the computer. Checking operational charging To check whether the battery charges properly...
Lenovo G555 Hardware Maintenance Manual V2.0
Page 26
...® taskbar and wait for a while. See the following figure: Terminal Voltage (V DC) 3 4 5 6(-) 7(-) 2(+) 1(+) 1 +0 to 30 KΩ. Lenovo G555 Hardware Maintenance Manual Perform operational charging. If the charge indicator or icon is displayed. If it may not be charged. To check your battery, move... Ground (-) 3. If the battery status indicator or icon does not light on , replace the system board. After it cools down, reinstall and recharge it return to 100% of battery power remaining is still off the computer. 2. If the voltage is still less than +11.0 V DC...
...® taskbar and wait for a while. See the following figure: Terminal Voltage (V DC) 3 4 5 6(-) 7(-) 2(+) 1(+) 1 +0 to 30 KΩ. Lenovo G555 Hardware Maintenance Manual Perform operational charging. If the charge indicator or icon is displayed. If it may not be charged. To check your battery, move... Ground (-) 3. If the battery status indicator or icon does not light on , replace the system board. After it cools down, reinstall and recharge it return to 100% of battery power remaining is still off the computer. 2. If the voltage is still less than +11.0 V DC...
Lenovo G555 Hardware Maintenance Manual V2.0
Page 28
... enter the SVP in the BIOS Setup Utility. Attention: If the SVP has been forgotten and cannot be booted. The system board must be entered before an operating system can be made available to the servicer, there is turned on by an unauthorized person.... supervisor password (SVP). Power-on password A power-on password (POP) protects the system from being powered on . Supervisor password A supervisor password (SVP) protects the system information stored in order to get access to the BIOS Setup Utility and change the system configuration. Lenovo G555 Hardware Maintenance Manual When ...
... enter the SVP in the BIOS Setup Utility. Attention: If the SVP has been forgotten and cannot be booted. The system board must be entered before an operating system can be made available to the servicer, there is turned on by an unauthorized person.... supervisor password (SVP). Power-on password A power-on password (POP) protects the system from being powered on . Supervisor password A supervisor password (SVP) protects the system information stored in order to get access to the BIOS Setup Utility and change the system configuration. Lenovo G555 Hardware Maintenance Manual When ...
Lenovo G555 Hardware Maintenance Manual V2.0
Page 51
Figure 10. Removal steps of Keyboard cover and power board Remove the screws 1. 1 1 1 1 Step 1 Screw (quantity) M2.0 × 2.5 mm, flat-head, nylon-coated (4) Color Black Torque 1.0~1.5 kgf·cm 47 Lenovo G555 1100 Keyboard cover and power board For access, remove this FRU: •• "1010 Battery pack" on page 34 Note: Power board is attached to the keyboard cover.
Figure 10. Removal steps of Keyboard cover and power board Remove the screws 1. 1 1 1 1 Step 1 Screw (quantity) M2.0 × 2.5 mm, flat-head, nylon-coated (4) Color Black Torque 1.0~1.5 kgf·cm 47 Lenovo G555 1100 Keyboard cover and power board For access, remove this FRU: •• "1010 Battery pack" on page 34 Note: Power board is attached to the keyboard cover.
Lenovo G555 Hardware Maintenance Manual V2.0
Page 52
Lift the keyboard cover with fingers in the direction shown by arrows 2 3. 3 3 3 3 3 3 2 48 Lenovo G555 Hardware Maintenance Manual Figure 10. Removal steps of Keyboard cover and power board (continued) Open the LCD at an angle about 120°.
Lift the keyboard cover with fingers in the direction shown by arrows 2 3. 3 3 3 3 3 3 2 48 Lenovo G555 Hardware Maintenance Manual Figure 10. Removal steps of Keyboard cover and power board (continued) Open the LCD at an angle about 120°.
Lenovo G555 Hardware Maintenance Manual V2.0
Page 53
Lenovo G555 Figure 10. Removal steps of Keyboard cover and power board (continued) Turn the keyboard cover over in the direction shown by arrow 4, disconnect the FPC connector in the direction shown by arrows 5 6, and then remove the keyboard cover. 6 5 4 When installing: Make sure that the FPC connector is attached firmly. Remove the screws 7, and then remove the power board 8. 7 7 8 Step 7 Screw (quantity) M2.0 × 3 mm, flat-head, nylon-coated (2) Color Silver Torque 1.0~1.5 kgf·cm 49
Lenovo G555 Figure 10. Removal steps of Keyboard cover and power board (continued) Turn the keyboard cover over in the direction shown by arrow 4, disconnect the FPC connector in the direction shown by arrows 5 6, and then remove the keyboard cover. 6 5 4 When installing: Make sure that the FPC connector is attached firmly. Remove the screws 7, and then remove the power board 8. 7 7 8 Step 7 Screw (quantity) M2.0 × 3 mm, flat-head, nylon-coated (2) Color Silver Torque 1.0~1.5 kgf·cm 49
Lenovo G555 Hardware Maintenance Manual V2.0
Page 54
Lenovo G555 Hardware Maintenance Manual 1110 Keyboard For access, remove these FRUs in order: •• "1010 Battery pack" on page 34 •• "1100 Keyboard cover and power board" on page 47 Figure 11. Removal steps of keyboard Remove the screws 1. 1 1 1 1 Step 1 Screw (quantity) M2.0 × 2.5 mm, flat-head, nylon-coated (4) Color Black Torque 1.0~1.5 kgf·cm 50
Lenovo G555 Hardware Maintenance Manual 1110 Keyboard For access, remove these FRUs in order: •• "1010 Battery pack" on page 34 •• "1100 Keyboard cover and power board" on page 47 Figure 11. Removal steps of keyboard Remove the screws 1. 1 1 1 1 Step 1 Screw (quantity) M2.0 × 2.5 mm, flat-head, nylon-coated (4) Color Black Torque 1.0~1.5 kgf·cm 50
Lenovo G555 Hardware Maintenance Manual V2.0
Page 56
... the two screws 1 and detach the LCD connector 2. 1 2 1 Step 1 Screw (quantity) M2.5 × 8 mm, flat-head, nylon-coated (2) Color Black Torque 2.0~2.5 kgf·cm 52 Lenovo G555 Hardware Maintenance Manual 1120 LCD unit For access, remove these FRUs in order: •• "1010 Battery pack" on page 34 •• "1040 Memory...) compartment cover" on page 38 •• "1090 PCI Express Mini Card for wireless LAN/WAN" on page 45 •• "1100 Keyboard cover and power board" on page 47 •• "1110 Keyboard" on page 50 Figure 12.
... the two screws 1 and detach the LCD connector 2. 1 2 1 Step 1 Screw (quantity) M2.5 × 8 mm, flat-head, nylon-coated (2) Color Black Torque 2.0~2.5 kgf·cm 52 Lenovo G555 Hardware Maintenance Manual 1120 LCD unit For access, remove these FRUs in order: •• "1010 Battery pack" on page 34 •• "1040 Memory...) compartment cover" on page 38 •• "1090 PCI Express Mini Card for wireless LAN/WAN" on page 45 •• "1100 Keyboard cover and power board" on page 47 •• "1110 Keyboard" on page 50 Figure 12.
Lenovo G555 Hardware Maintenance Manual V2.0
Page 60
Removal steps of keyboard bezel Remove fourteen screws 1 and three screws 2 on page 52 Figure 13. Lenovo G555 Hardware Maintenance Manual 1130 Keyboard bezel For access, remove these FRUs in order: •• "1010 Battery pack" on page 34 •• "...) compartment cover" on page 38 •• "1090 PCI Express Mini Card for wireless LAN/WAN" on page 45 •• "1100 Keyboard cover and power board" on page 47 •• "1110 Keyboard" on page 50 •• "1120 LCD unit" on the bottom. 1 1 2 2 12 1 1 1 1 1 1 1 1 1 1 1 Step 1 2 Screw (quantity) M2.5 × ...
Removal steps of keyboard bezel Remove fourteen screws 1 and three screws 2 on page 52 Figure 13. Lenovo G555 Hardware Maintenance Manual 1130 Keyboard bezel For access, remove these FRUs in order: •• "1010 Battery pack" on page 34 •• "...) compartment cover" on page 38 •• "1090 PCI Express Mini Card for wireless LAN/WAN" on page 45 •• "1100 Keyboard cover and power board" on page 47 •• "1110 Keyboard" on page 50 •• "1120 LCD unit" on the bottom. 1 1 2 2 12 1 1 1 1 1 1 1 1 1 1 1 Step 1 2 Screw (quantity) M2.5 × ...
Lenovo G555 Hardware Maintenance Manual V2.0
Page 64
... not to put it only on a padded surface such as an ESD mat or conductive corrugated material. Lenovo G555 Hardware Maintenance Manual 1140 System board Important notices for handling the system board: When handling the system board, bear the following in order: •• "1010 Battery pack" on page 34 ••...assembly" on page 41 •• "1090 PCI Express Mini Card for wireless LAN/WAN" on page 45 •• "1100 Keyboard cover and power board" on page 47 •• "1110 Keyboard" on page 50 •• "1120 LCD unit" on page 52 •• "1130 Keyboard ...
... not to put it only on a padded surface such as an ESD mat or conductive corrugated material. Lenovo G555 Hardware Maintenance Manual 1140 System board Important notices for handling the system board: When handling the system board, bear the following in order: •• "1010 Battery pack" on page 34 ••...assembly" on page 41 •• "1090 PCI Express Mini Card for wireless LAN/WAN" on page 45 •• "1100 Keyboard cover and power board" on page 47 •• "1110 Keyboard" on page 50 •• "1120 LCD unit" on page 52 •• "1130 Keyboard ...
Lenovo G555 Hardware Maintenance Manual V2.0
Page 67
Step 1 Screw (quantity) M2.0 × 3 mm, flat-head, nylon-coated (1) Color Silver Torque 1.0~1.5 kgf·cm 63 Lenovo G555 1150 Bluetooth daughter card, speakers and base cover For access, remove these FRUs in the direction shown by arrow 2. 1 2 2 When installing: Make sure that the ... Sink assembly" on page 41 •• "1090 PCI Express Mini Card for wireless LAN/WAN" on page 45 •• "1100 Keyboard cover and power board" on page 47 •• "1110 Keyboard" on page 50 •• "1120 LCD unit" on page 52 •• "1130 Keyboard bezel" on page...
Step 1 Screw (quantity) M2.0 × 3 mm, flat-head, nylon-coated (1) Color Silver Torque 1.0~1.5 kgf·cm 63 Lenovo G555 1150 Bluetooth daughter card, speakers and base cover For access, remove these FRUs in the direction shown by arrow 2. 1 2 2 When installing: Make sure that the ... Sink assembly" on page 41 •• "1090 PCI Express Mini Card for wireless LAN/WAN" on page 45 •• "1100 Keyboard cover and power board" on page 47 •• "1110 Keyboard" on page 50 •• "1120 LCD unit" on page 52 •• "1130 Keyboard bezel" on page...
Lenovo G555 Hardware Maintenance Manual V2.0
Page 71
.../WAN" on page 45 •• "1100 Keyboard cover and power board" on page 47 •• "1110 Keyboard" on page 50 •• "1120 LCD unit" on page 52 Figure 16. Removal steps of LCD front bezel Remove six screws 1. Lenovo G555 1160 LCD front bezel For access, remove these FRUs in the...
.../WAN" on page 45 •• "1100 Keyboard cover and power board" on page 47 •• "1110 Keyboard" on page 50 •• "1120 LCD unit" on page 52 Figure 16. Removal steps of LCD front bezel Remove six screws 1. Lenovo G555 1160 LCD front bezel For access, remove these FRUs in the...
Lenovo G555 Hardware Maintenance Manual V2.0
Page 72
Lenovo G555 Hardware Maintenance Manual 1170 LCD panel and hinges For access, remove these FRUs in order: •• "1010 Battery pack" on page 34 •• "...) compartment cover" on page 38 •• "1090 PCI Express Mini Card for wireless LAN/WAN" on page 45 •• "1100 Keyboard cover and power board" on page 47 •• "1110 Keyboard" on page 50 •• "1120 LCD unit" on page 52 •• "1160 LCD front bezel" on...
Lenovo G555 Hardware Maintenance Manual 1170 LCD panel and hinges For access, remove these FRUs in order: •• "1010 Battery pack" on page 34 •• "...) compartment cover" on page 38 •• "1090 PCI Express Mini Card for wireless LAN/WAN" on page 45 •• "1100 Keyboard cover and power board" on page 47 •• "1110 Keyboard" on page 50 •• "1120 LCD unit" on page 52 •• "1160 LCD front bezel" on...
Lenovo G555 Hardware Maintenance Manual V2.0
Page 74
...;• "1100 Keyboard cover and power board" on page 47 •• "1110 Keyboard" on page 50 •• "1120 LCD unit" on page 52 •• "1160 LCD front bezel" on page 67 •• "1170 LCD panel and hinges" on page 68 Figure 18. Lenovo G555 Hardware Maintenance Manual 1180 Integrated camera...
...;• "1100 Keyboard cover and power board" on page 47 •• "1110 Keyboard" on page 50 •• "1120 LCD unit" on page 52 •• "1160 LCD front bezel" on page 67 •• "1170 LCD panel and hinges" on page 68 Figure 18. Lenovo G555 Hardware Maintenance Manual 1180 Integrated camera...
Lenovo G555 Hardware Maintenance Manual V2.0
Page 75
Lenovo G555 1190 Antenna assembly and LCD cover For access, remove these FRUs in the direction shown by the cable guides, or a wire to be damaged by arrows 1. 1 1 When installing: Route the antenna cables along the cable guides and secure the antenna boards with adhesive tapes. Removal steps of antenna assembly...compartment cover" on page 38 •• "1090 PCI Express Mini Card for wireless LAN/WAN" on page 45 •• "1100 Keyboard cover and power board" on page 47 •• "1110 Keyboard" on page 50 •• "1120 LCD unit" on page 52 •• "1160 LCD front...
Lenovo G555 1190 Antenna assembly and LCD cover For access, remove these FRUs in the direction shown by the cable guides, or a wire to be damaged by arrows 1. 1 1 When installing: Route the antenna cables along the cable guides and secure the antenna boards with adhesive tapes. Removal steps of antenna assembly...compartment cover" on page 38 •• "1090 PCI Express Mini Card for wireless LAN/WAN" on page 45 •• "1100 Keyboard cover and power board" on page 47 •• "1110 Keyboard" on page 50 •• "1120 LCD unit" on page 52 •• "1160 LCD front...
Lenovo G555 Hardware Maintenance Manual V2.0
Page 80
...FRU FRU no. 1 LCD unit (see "LCD FRUs" on page 79.) 2 KIWA7 STRIP COVER-TEXTURE 31038424 3 NAWA2 POWER BOARD 15.6 W/O FFC 31042653 4 Keyboard (see "Keyboard" on page 81.) 5 NAWA2 LOGIC UPPER ASSY-TEXTURE 15.6 31042643 ...-UMA 15.6 11011955 6 NAWA2 M/B ASSY-DIS W/O BT 15.6 11011956 6 NAWA2 M/B ASSY-UMA W/O BT 15.6 11011957 7 KIWA7 USB BOARD W/FFC 4559ZV38L01 31038368 8 CPU assembly, AMD T-M520 2.30G 1M C2 PGA processor 102000802 8 CPU assembly, AMD T-M540 2.40G 1M C2PGA ... 2*2, Gtc BCM43225 BGN MOW NB 20002271 WLAN card 76 Lenovo G555 Hardware Maintenance Manual Table 5.
...FRU FRU no. 1 LCD unit (see "LCD FRUs" on page 79.) 2 KIWA7 STRIP COVER-TEXTURE 31038424 3 NAWA2 POWER BOARD 15.6 W/O FFC 31042653 4 Keyboard (see "Keyboard" on page 81.) 5 NAWA2 LOGIC UPPER ASSY-TEXTURE 15.6 31042643 ...-UMA 15.6 11011955 6 NAWA2 M/B ASSY-DIS W/O BT 15.6 11011956 6 NAWA2 M/B ASSY-UMA W/O BT 15.6 11011957 7 KIWA7 USB BOARD W/FFC 4559ZV38L01 31038368 8 CPU assembly, AMD T-M520 2.30G 1M C2 PGA processor 102000802 8 CPU assembly, AMD T-M540 2.40G 1M C2PGA ... 2*2, Gtc BCM43225 BGN MOW NB 20002271 WLAN card 76 Lenovo G555 Hardware Maintenance Manual Table 5.
Lenovo G555 Hardware Maintenance Manual V2.0
Page 87
Lenovo G555 Miscellaneous parts Table 8. Parts list-Miscellaneous parts FRU P/N System miscellaneous parts: • (a) KIWA7 T/P BRACKET EC07Q000500 31038373 • (b) KIWA7 HDD BRACKET AM040000300 31038374 • (c) KIWA7 ODD BRACKET EC02C000D00 31038393 • (d) NAWA1 LCD SCREW PAD-IMR 31042637 Cable miscellaneous parts: • (e) NAWA2 Power Board cable NBX0000N200 31042641 • (f) KIWA7 T/P FFC NBX0000G000 31038437 • (g) KIWA7 DC...
Lenovo G555 Miscellaneous parts Table 8. Parts list-Miscellaneous parts FRU P/N System miscellaneous parts: • (a) KIWA7 T/P BRACKET EC07Q000500 31038373 • (b) KIWA7 HDD BRACKET AM040000300 31038374 • (c) KIWA7 ODD BRACKET EC02C000D00 31038393 • (d) NAWA1 LCD SCREW PAD-IMR 31042637 Cable miscellaneous parts: • (e) NAWA2 Power Board cable NBX0000N200 31042641 • (f) KIWA7 T/P FFC NBX0000G000 31038437 • (g) KIWA7 DC...