Lenovo G40 Manual
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Downloaded from www.Manualslib.com manuals search engine 47 Lenovo G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75 1090 Keyboard bezel For access, remove these FRUs in order: • “1010 Battery pack” on page 33 • “1020 Base cover” on page 34 • “1030 Optical drive” on page 36 • “1040 Hard disk drive” on page 37 • “1070 Fan assembly” on page 42 • “1080 Keyboard” on page 44 Figure 9. Removal steps of keyboard bezel Remove the screws 1. Step Screw (quantity) ColorTorque 1M2 × 3.5 mm, flat-head, nylok-coated (10) D to C (type2) Black 1.5 ~ 2.0 kgf*cm
Downloaded from www.Manualslib.com manuals search engine 48 G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75 Hardware Maintenance Manual Figure 9. Removal steps of keyboard bezel (continued) Disconnect the touchpad cable connector and the power board connector in the directions shown by arrows 2 and 3. Remove the keyboard bezel in the direction shown by arrow 4.
Downloaded from www.Manualslib.com manuals search engine 49 Lenovo G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75 Figure 9. Removal steps of keyboard bezel (continued) Remove the screw 5. Step Screw (quantity) ColorTorque 5M2 × 3.5 mm, flat-head, nylok-coated (1) Power BD to C Black 1.5 ~ 2.0 kgf*cm Carefully remove the power board in the direction shown by arrow 6.
Downloaded from www.Manualslib.com manuals search engine 50 G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75 Hardware Maintenance Manual 1100 USB&audio board For access, remove these FRUs in order: • “1010 Battery pack” on page 33 • “1020 Base cover” on page 34 • “1030 Optical drive” on page 36 • “1040 Hard disk drive” on page 37 • “1050 PCI Express Mini Card for wireless LAN” on page 39 • “1070 Fan assembly” on page 42 • “1080 Keyboard” on page 44 • “1090 Keyboard bezel” on page 47 Figure 10. Removal steps of USB&audio board Detach the USB&audio board connector in the directions shown by arrows 1 and 2. Remove the screw 3. 3 1 2 Step Screw (quantity) ColorTorque 3M2 × 3.5 mm, flat-head, nylok-coated (1) Audio BD to D Black 1.5 ~ 2.0 kgf*cm
Downloaded from www.Manualslib.com manuals search engine 51 Lenovo G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75 Figure 10. Removal steps of USB&audio board (continued) Remove the USB&audio board 4. 4
Downloaded from www.Manualslib.com manuals search engine 52 G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75 Hardware Maintenance Manual 111 0 System board Important notices for handling the system board: When handling the system board, bear the following in mind. • Be c areful n ot t o d rop t he sy stem b oard o n a b ench t op t hat h as a h ard su rface, such as metal, wood, or composite. • Avoid rough handling of any kind. • During the whole process, make sure not to drop or stack the system board. • If you put a system board down, make sure to put it only on a padded surface such as an ESD mat or conductive corrugated material. For access, remove these FRUs in order: • “1010 Battery pack” on page 33 • “1020 Base cover” on page 34 • “1030 Optical drive” on page 36 • “1040 Hard disk drive” on page 37 • “1050 PCI Express Mini Card for wireless LAN” on page 39 • “1070 Fan assembly” on page 42 • “1080 Keyboard” on page 44 • “1090 Keyboard bezel” on page 47 • “1100 USB&audio board” on page 50 Figure 11. Removal steps of system board Disconnect the two connectors in the directions shown by arrows 1 and 2. 1 2
Downloaded from www.Manualslib.com manuals search engine 53 Lenovo G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75 Figure 11. Removal steps of system board (continued) Unplug the speaker connector in the direction shown by arrow 3. Remove the screws 4 and 5. Step Screw (quantity) ColorTorque 4M2 × 3.5 mm, flat-head, nylok-coated (1) MB to D Black 1.5 ~ 2.0 kgf*cm 5M2 × 3.5 mm, flat-head, nylok-coated (1) MB to D (on select models) Black 1.5 ~ 2.0 kgf*cm
Downloaded from www.Manualslib.com manuals search engine 54 G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75 Hardware Maintenance Manual Figure 11. Removal steps of system board (continued) Remove the system board in the direction shown by arrow 6.
Downloaded from www.Manualslib.com manuals search engine 55 Lenovo G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75 1120 Heat sink assembly For access, remove these FRUs in order: • “1010 Battery pack” on page 33 • “1020 Base cover” on page 34 • “1030 Optical drive” on page 36 • “1040 Hard disk drive” on page 37 • “1050 PCI Express Mini Card for wireless LAN” on page 39 • “1070 Fan assembly” on page 42 • “1080 Keyboard” on page 44 • “1090 Keyboard bezel” on page 47 • “1100 USB&audio board” on page 50 • “1110 System board” on page 52 Figure 12. Removal steps of heat sink assembly Remove the screws 1. 11 1 Step Screw (quantity) ColorTorque 1M2 × 3.5 mm, flat-head, nylok-coated (7) (G40-30/G40-45/G40-70) CPU BKT to MB, GPU BKT to MB Black 1.5 ~ 2.0 kgf*cm 1M2 × 3.5 mm, flat-head, nylok-coated (6) (G40-70m/Z40-70/Z40-75) CPU BKT to MB, GPU BKT to MB Black1.5 ~ 2.0 kgf*cm Lift the heat sink assembly in the direction shown by arrow 2. 2
Downloaded from www.Manualslib.com manuals search engine 56 G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75 Hardware Maintenance Manual 1130 Speakers and DC-in cable For access, remove these FRUs in order: • “1010 Battery pack” on page 33 • “1020 Base cover” on page 34 • “1030 Optical drive” on page 36 • “1040 Hard disk drive” on page 37 • “1050 PCI Express Mini Card for wireless LAN” on page 39 • “1070 Fan assembly” on page 42 • “1080 Keyboard” on page 44 • “1090 Keyboard bezel” on page 47 • “1100 USB&audio board” on page 50 • “1110 System board” on page 52 Figure 13. Removal steps of speakers and DC-in cable Remove the speakers in the direction shown by arrows 1. 1 1