Lenovo Miix 2 Service Manual

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Lenovo IdeaPad Miix 2 8
Table 1. Specifications (continued)
FeatureDescription
Touch panel• Multi-touch typeIntegrated camera• 2.0 MP on front, 5.0 MP rear
Battery• 1 cell, 4730 mAh, PolymerAC adapter• 5.2 V DC, 10 WPre-installed operating system 
• WIN8.1 MM 32BIT SST OFFICE• WIN8.1 MM 32BIT SST• WIN8.1 PRC 32BIT SST OFFICE• WIN8.1 PROFESSIONAL 32BIT 
						

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IdeaPad Miix 2 8 Hardware Maintenance Manual
FRU replacement notices
This  section  presents  notices  related  to  removing  and  replacing  parts.  Read this section carefully before replacing any FRU.
Screw notices 
Loose screws can cause a reliability problem. In the Lenovo IdeaPad computer, this  problem  is  addressed  with  special  nylon-coated  screws  that  have  the following characteristics:
• They maintain tight connections.
• They do not easily come loose, even with shock or vibration.
• They are harder to tighten.
Do the following when you service this machine: 
• Keep the screw kit in your tool bag.
• Carefully remove screws for reuse when replacing FRUs.
• Use a torque screwdriver if you have one.
Tighten screws as follows:
• Plastic to plastic
 Turn  an  additional  90°  after  the  screw  head  touches  the  surface  of  the plastic part:more than 90°
(Cross-section)
• Logic card to plastic 
 Turn  an  additional  180°  after  the  screw  head  touches  the  surface  of  the logic card: more than 180°
(Cross-section)
• Torque driver 
  If you have a torque screwdriver , refer to the “Torque” column for each step.
• Make sure that you use the correct screws. If you have a torque screwdriver, tighten  all  screws  firmly  to  the  torque  shown  in  the  table. Carefully  remove screws  for  reuse  when  replacing  FRUs.  Make  sure  that  all  screws  are tightened firmly.
• Ensure  torque  screwdrivers  are  calibrated  correctly  following  country specifications.  
						

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Lenovo IdeaPad Miix 2 8
Removing and replacing an FRU
This  section  presents  exploded  figures  with  the  instructions  to  indicate  how  to remove and replace the FRU. Make sure to observe the following general rules:
1. Do  not  attempt  to  service  any  computer  unless  you  have  been  trained  and certified. An untrained person runs the risk of damaging parts.
2. Before replacing any FRU, review “FRU replacement notices” on page 29.
3. Begin  by  removing  any  FRUs  that  have  to  be  removed  before  the  failing FRU. Any  of  such  FRUs  are  listed  at  the  top  of  the  page.  Remove  them  in the order in which they are listed.
4. Follow the correct sequence in the steps to remove the FRU, as given in the figures by the numbers in square callouts.
5. When turning a screw to replace an FRU, turn it in the direction as given by the arrow in the figure.
6. When  removing  the  FRU,  move  it  in  the  direction  as  given  by  the  arrow  in the figure.
7. To  put  the  new  FRU  in  place,  reverse  the  removal  procedures  and  follow a n y   o f   t h e   n o t e s   t h a t   p e r t a i n   t o   r e p l a c e m e n t .   F o r   i n f o r m a t i o n   a b o u t connecting and arranging internal cables, see “Locations” on page \
54.
8. When replacing an FRU, use the correct screw as shown in the procedures.
 DANGER
Before  removing  any  FRU,  turn  off  the  computer,  unplug  all  power  cords  from 
electrical outlets, and then disconnect any of the interconnecting cable\
s. 
Attention:  After replacing an FRU, do not turn on the computer until you have made sure that all screws, springs, and other small parts are in place and none are  loose  inside  the  computer.  Verify  this  by  shaking  the  computer  gently  and listening  for  rattling  sounds.  Metallic  parts  or  metal  flakes  can  cause  electrical short circuits.
A t t e n t i o n :  T h e   s y s t e m   b o a r d   i s   s e n s i t i v e   t o ,   a n d   c a n   b e   d a m a g e d   b y, electrostatic  discharge.  Before  touching  it,  establish  personal  grounding  by touching a ground point with one hand or using an electrostatic discharge (ESD) strap (P/N 6405959) to remove potential shock reasons. 
						

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IdeaPad Miix 2 8 Hardware Maintenance Manual
1010 LCD cover
Figure 1. Removal step of LCD cover
Remove the LCD cover in the direction shown by arrow 1.1  
						

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Lenovo IdeaPad Miix 2 8
1020 Battery pack
For access, remove this FRU:
• “1010 LCD cover” on page 31
 DANGER
Only	use 	the 	battery 	specified 	in 	the 	parts 	list 	for 	your 	computer. 	Any 	other	
battery could ignite or explode. 
Figure 2. Removal steps of battery pack
Disconnect  the  battery  connector  in  the  direction  shown  by  arrow 1,  then remove the six screws 2. 
2
2
2
2
2
2
1
StepScrew (quantity)ColorTorque
2M1.6 × 3.0, Battery to Bezel (6)Black1.0 ~ 1.5kgf*cm 
						

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IdeaPad Miix 2 8 Hardware Maintenance Manual
Figure 2. Removal steps of battery pack (continued) 
Remove the battery pack in the direction shown by arrow 3.
3
When installing: Make sure the battery pack connector is attached firmly.  
						

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Lenovo IdeaPad Miix 2 8
1030 3G card (on select models)
For access, remove these FRU:
• “1010 LCD cover” on page 31
• “1020 Battery pack” on page 32
Figure 3. Removal steps of 3G card  
Disconnect the 3G card cable (blue) 1. Then remove the one screw 2.
2
1
In step 1, unplug the jacks by using the removal tool antenna RF connector (P/N: 
51078891), or pick up the connectors with your fingers and gently unplug them in the direction shown by the arrows. 
When installing:
• In  models  with  a  3G  card  that  has  two  antenna  connectors,  plug  the  blue cable (1st) (MAIN) into the jack labeled 1, and the red cable (2nd) (AUX) into the jack labeled 2 on the card.  
						

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IdeaPad Miix 2 8 Hardware Maintenance Manual
Figure 3. Removal steps of 3G card (continued) 
Remove the 3G card in the direction shown by arrow 3.
3
StepScrew (quantity)ColorTorque
2M1.6 × 1.7, NGFF to Bezel (1)Silver1.0 ~ 1.5kgf*cm  
						

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Lenovo IdeaPad Miix 2 8
1040 Speakers
For access, remove these FRUs in order:
• “1010 LCD cover” on page 31
• “1020 Battery pack” on page 32
• “1030 3G card (on select models)” on page 34
Figure 4. Removal steps of speakers
Unplug one speaker connector in the direction shown by arrow 1.
2
1
When installing: Make sure the speaker connector is attached firmly. 
						

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IdeaPad Miix 2 8 Hardware Maintenance Manual
Figure 4. Removal steps of speakers (continued)
Remove the speakers in the direction shown by arrow 2.
2