Lenovo Flex 5 User Guide

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Lenovo ideapad FLEX 5-1470/Lenovo ideapad FLEX 5-1570
Figure 5. Removal steps of PCI Express Mini Card for wireless LAN (continued)
Disconnect the two wireless LAN cables (black, white) 
2, and then remove the 
screw 3.
22
3
In step 2, unplug the jacks by using the removal tool antenna RF connector   
(P/N:  08K7159),  or  pick  up  the  connectors  with  your  fingers  and  gently  unplug 
them in the direction shown by the arrows.
Notes:
 The wireless LAN card has 2 cables in step 2.
 The wireless LAN card in some models might have 3 cables in step 2.
Step Screw (quantity) ColorTorque
3M1.98 × 3.0 mm, Phillips-head, nylok-coated (1)  
WLAN TO MB Black
1.0-1.5 kgf*cm
Remove the card in the direction shown by arrow 4.
4
When installing:  When installing the wireless LAN card, plug the black cable 
into the jack labeled  MAIN and the white cable into the jack labeled  AUX. 
						

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Lenovo ideapad FLEX 5-1470/Lenovo ideapad FLEX 5-1570 
Hardware Maintenance Manual
1060 Speakers
For access, remove these FRUs in order:
• “1010 Base cover” on page 31• “1020 Battery pack ” on page 33
Figure 6. Removal steps of speakers
Unplug the speaker connector in the direction shown by arrow 
1. Release 
the speaker cable from the cable guides and peel off the tape that secures 
the cable.
1
When installing:  Make sure that the connector is attached firmly. 
Remove the two speakers 
2. 
2
2 
						

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Lenovo ideapad FLEX 5-1470/Lenovo ideapad FLEX 5-1570
1070 DIMM
For access, remove these FRUs in order:
• “1010 Base cover” on page 31• “1020 Battery pack” on page 33
Figure 7. Removal steps of DIMM
Carefully remove the DIMM EMI shielding 
1.
1 
						

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Lenovo ideapad FLEX 5-1470/Lenovo ideapad FLEX 5-1570 
Hardware Maintenance Manual
Figure 7. Removal steps of DIMM (continued)
Release the two latches on both edges of the socket at the same time in the 
directions shown by arrows 
2, and then unplug the DIMM in the direction shown 
by arrow 
3. 
223
When installing: Insert the notched end of the DIMM into the socket. Push the 
DIMM firmly, and pivot it until it snaps into place. Make sure that it is firmly fixed 
in the slot and is difficult to move.
Note: When replacing the memory is completed, you need to restart the 
computer after the first reboot. 
						

							41
Lenovo ideapad FLEX 5-1470/Lenovo ideapad FLEX 5-1570
1080 Fan and Heat Sink assembly
For access, remove these FRUs in order:
• “1010 Base cover” on page 31• “1020 Battery pack” on page 33
Figure 8. Removal steps of fan and heat sink assembly
Remove the screws 
1.
11
11
1
Step Screw (quantity) ColorTorque
1M1.98 x 3.0 mm, Phillips-head, nylok-coated (5) 
THERMAL MODULE TO CPU BRK/THERMAL 
MODULE TO GPU BRK (for DIS only) Black
1.0-1.5 kgf*cm 
						

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Lenovo ideapad FLEX 5-1470/Lenovo ideapad FLEX 5-1570 
Hardware Maintenance Manual
Figure 8. Removal steps of fan and heat sink assembly (continued)
Remove the heat sink module in the direction shown by arrow 
2.
2
Attention: Do not handle the heat sink assembly roughly. Improper handling 
can cause distortion or deformation and imperfect contact with component\
s.
ab
When installing:  Before you attach the fan assembly to the computer, apply 
thermal grease, at an amount of 0.2 grams, to parts a and b shown in the 
figure above. Either too much or too little grease application can cause a 
thermal problem due to imperfect contact with a component. 
						

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Lenovo ideapad FLEX 5-1470/Lenovo ideapad FLEX 5-1570
Figure 8. Removal steps of fan and heat sink assembly (continued)
Unplug the fan connector in the direction shown by arrow 
3. Remove the 
screws 4. Release the LCD cable from the cable guides.
44
3
Step Screw (quantity) ColorTorque
4M1.98 × 3.0 mm, Phillips head, nylok-coated (2) 
FAN TO upper Black
1.0-1.5 kgf*cm
When installing:  Make sure that the connector is attached firmly.
Remove the fan 
5.
5 
						

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Lenovo ideapad FLEX 5-1470/Lenovo ideapad FLEX 5-1570 
Hardware Maintenance Manual
1090 IO board
For access, remove these FRUs in order:
• “1010 Base cover” on page 31• “1020 Battery pack” on page 33• “1080 Fan and Heat Sink assembly ” on page 41
Figure 9. Removal steps of IO board
Peel off the adhesive tape that secures the RTC battery 
1.
1
Disconnect the IO board connector in the directions shown by arrows 2 and 3. 
Remove the screw 4.
42
3
Step Screw (quantity) ColorTorque
4M2.0 x 3.5 mm, Phillips-head, nylok-coated (1) 
IO BOARD TO UPPER Silver
1.0-1.5 kgf*cm 
						

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Lenovo ideapad FLEX 5-1470/Lenovo ideapad FLEX 5-1570
Figure 9. Removal steps of IO board (continued)
Remove the IO board 
5.
5
Unplug the RTC battery connector in the direction shown by arrow 6, then 
remove the RTC battery.
6 
						

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Lenovo ideapad FLEX 5-1470/Lenovo ideapad FLEX 5-1570 
Hardware Maintenance Manual
1100 System board
Important notices for handling the system board:
When	handling	the	system	board,	bear	the	following	in	mind.
•	 Be
	ca
 reful
	no
 t
	to	dr
 op
	th
 e
	syst
 em
	bo
 ard
	on	a	be
 nch
	to
 p
	th
 at
	ha
 s
	a	ha
 rd
	sur
 face,
	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 Base cover ” on page 31• “1020 Battery pack” on page 33• “1030 Solid state disk ” on page 34• “1040 Hard disk drive” on page 35• “1050 PCI Express Mini Card for wireless LAN ” on page 36• “1060 Speakers” on page 38• “1080 Fan and Heat Sink assembly ” on page 41• “1090 IO board” on page 44
Figure 10. Removal steps of system board (continued)
Detach the connectors in the directions shown by arrows 
1, 2, 3 and 4.
1
2
1
2
3
4
When installing:  Make sure that the connectors are attached firmly.