Lenovo Yoga 3 Service Manual

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Lenovo YOGA 3 Pro-1370
1040 Audio board
For access, remove these FRUs in order:
• “1010 Base cover” on page 32
•  “1020 Battery pack” on page 34
Figure 4. Removal steps of audio board
Detach the connectors 
1, 2, and 3 in sequence. Remove the screws D. Lift 
the  audio  board  in  the  direction  shown  by  arrow E.  Be  careful  not  to  damage 
the connector.
2
3
1
4
4
4
5
Step Screw (quantity) ColorTorque
DM2 × 3.5 mm, cross-head, nylok-coated (3) Black1.5~2.0 kgf*cm
When installing:  Make sure that the connectors are attached firmly. 
						

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Lenovo YOGA 3 Pro-1370 Hardware Maintenance Manual
1050 HDMI board
For access, remove these FRUs in order:
• “1010 Base cover” on page 32
•  “1020 Battery pack” on page 34
•  “1030 PCI Express Mini Card for wireless LAN” on page 35
Figure 5. Removal steps of HDMI board
Release the antenna cables as shown below.
1
1
2
Remove the screws 1. Lift the HDMI board in the direction shown by arrow 2.
1
1
2
Step Screw (quantity) ColorTorque
AM2 × 3.5 mm, cross-head, nylok-coated (2) Black1.5~2.0 kgf*cm  
						

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Lenovo YOGA 3 Pro-1370
1060 Fan and heat sink assembly
For access, remove these FRUs in order:
• “1010 Base cover” on page 32
•  “1020 Battery pack” on page 34
•  “1040 Audio board” on page 37
Figure 6. Removal steps of Fan and heat sink assembly
Remove  the  screws 
1.  Lift  the  fan  and  heat  sink  assembly  in  the  direction 
shown by arrow B. Be careful not to damage the connector.
1
1
1
1
1
2
Step Screw (quantity) ColorTorque
AM2 × 2.5 mm, cross-head, nylok-coated (5) Black1.5~2.0 kgf*cm
Attention:  Do not handle the fan and heat sink assembly roughly. Improper 
handling can cause distortion or deformation and imperfect contact with 
components. 
						

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Lenovo YOGA 3 Pro-1370 Hardware Maintenance Manual
1070 SSD
For access, remove these FRUs in order:
• “1010 Base cover” on page 32
•  “1020 Battery pack” on page 34
Figure 7. Removal steps of SSD
Remove the screws 
1. Lift the SSD in the direction shown by arrow B.
1
2
Step Screw (quantity) ColorTorque
AM2 × 2.5 mm, cross-head, nylok-coated (1) Black1.5~2.0 kgf*cm  
						

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Lenovo YOGA 3 Pro-1370
1080 Mainboard
Important notices for handling the mainboard:
When handling the mainboard, bear the following in mind.
• Be  careful  not  to  drop  the  mainboard  on  a  bench  top  that  has  a  hard 
surface, such as metal, wood, or composite.
•  Avoid rough handling of any kind.
•  During the whole process, make sure not to drop or stack the mainboard.
•  If  you  put  a  mainboard  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 Base cover” on page 32
•  “1020 Battery pack” on page 34
•  “1040 Audio board” on page 37
•  “1050 HDMI board” on page 38
•  “1060 Fan and heat sink assembly” on page 39
•  “1070 SSD” on page 40
  
						

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Lenovo YOGA 3 Pro-1370 Hardware Maintenance Manual
Figure 8. Removal steps of mainboard
Detach  the  connectors 
1, B, C,  and D.  Remove  the  screws E.  Be  careful 
not to damage the connector.
1
2
34
5
5
5
5
Step Screw (quantity) ColorTorque
EM2 × 2.0 mm, cross-head, nylok-coated (4) Black1.5~2.0 kgf*cm
Turn  over  the  mainboard  in  the  direction  shown  by  arrow 1  and  detach  the 
LCD FPC connector B. Be careful not to damage the connector.
1
2
When installing:  Make sure that the connectors are attached firmly.  
						

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Lenovo YOGA 3 Pro-1370
1090 LCD module
For access, remove these FRUs in order:
• “1010 Base cover” on page 32
Figure 9. Removal steps of LCD module
Remove the screws 
1. Lift the LCD module in the direction shown by arrow B.
1111
1111
2
Step Screw (quantity) ColorTorque
AM2 × 3.5 mm, cross-head, nylok-coated (8) Black1.5~2.0 kgf*cm 
						

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Lenovo YOGA 3 Pro-1370 Hardware Maintenance Manual
1100 DC-in cable
For access, remove these FRUs in order:
• “1010 Base cover” on page 32
Figure 10. Removal steps of DC-in cable
Remove the screws 
A. Lift the DC-in cable in the direction shown by arrow B.
11
2
Step Screw (quantity) ColorTorque
AM2 × 2.5 mm, cross-head, nylok-coated (2) Black1.5~2.0 kgf*cm  
						

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Lenovo YOGA 3 Pro-1370
1110 Speakers and antennas
For access, remove these FRUs in order:
• “1010 Base cover” on page 32
•  “1020 Battery pack” on page 34
•  “1030 PCI Express Mini Card for wireless LAN” on page 35
Figure 11. Removal steps of speakers and antennas
Remove the screws 
1. Lift the speakers in the direction shown by arrow B.
1
11
2
2
1
Step Screw (quantity) ColorTorque
AM2 × 4.0 mm, cross-head, nylok-coated (4) Black1.5~2.0 kgf*cm
Figure 11. Removal steps of speakers and antennas
Detach the antennas in the direction shown by arrow 
1.
1
1 
						

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Lenovo YOGA 3 Pro-1370 Hardware Maintenance Manual
1120 Touch pad module
For access, remove these FRUs in order:
• “1010 Base cover” on page 32
•  “1020 Battery pack” on page 34
Figure 12. Removal steps of touch pad module
Remove  the  screws 
A.  Lift  the  touch  pad  module  in  the  direction  shown  by 
arrow B.
1
1
1
2
Step Screw (quantity) ColorTorque
AM2 × 2.5 mm, cross-head, nylok-coated (6) Black1.5~2.0 kgf*cm