Lenovo U 160 Service Manual

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Lenovo IdeaPad U160/U165

Lenovo IdeaPad U160/U165
This  chapter  presents  the  following  product-specific  service  references  and product-specific parts information:
• “Specifications” on page 27
• “Status indicators” on page 29
• “Fn key combinations” on page 31
• “FRU replacement notices” on page 32
• “Removing and replacing an FRU” on page 33
• “Locations” on page 60
• “Parts list” on page 62

Specifications
The following table lists the specifications of the Lenovo IdeaPad U160/U165 : 
Table...

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IdeaPad U160/U165 Hardware Maintenance Manual
Table 1. Specifications (continued)
FeatureDescription
I/O port • External monitor connector• Stereo headphone jack• Microphone jack• RJ45 x 1 (on planar)• USB2.0 x 2 (on planar)• eSATA/USB combo port x 1• 5-in-1 media card reader MODEM slot• N/AAudio• Headphone Jack x 1• Mic-In Jack x 1• Built-in Stereo Speakers, 2 x 1.5W with 6 cc chamberVideo• CRT port x 1 (on planar)Ethernet (on the system board) • 10/100/1000 M Ethernet
PCI Express Mini Card slot•...

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Lenovo IdeaPad U160/U165
Status indicators
The system status indicators below show the computer status:
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3564
7
Table 2. Status indicators
IndicatorMeaning
1Caps lockWhite:Caps  Lock  mode  is  enabled.  You  can  enter  all alphabetic  characters  (A-Z)  in  uppercase  without pressing  the  Shift  key.  To  enable  or  disable  Caps Lock mode, press the CapsLk key.
2Scroll lockWhite:Scroll  Lock  mode  is  enabled.  To  enable  or  disable Scroll  Lock  mode,  press  and  hold  the  Fn  key,  and...

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IdeaPad U160/U165 Hardware Maintenance Manual
Table 2. Status indicators (continued)
IndicatorMeaning
4Battery statusBlinking amber: (500ms off/1s on)The remaining power of the battery is less than 5% of its capacity.Blinking amber: (100ms off/3.2s on) The  battery  is  being  charged  with  the  remaining power between 5% and 20% of its capacity.Amber:The  computer  is  operating  on  battery  power  with the  remaining  power  between  5%  and  20%  of  its capacity.Blinking white: The  battery  is...

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Lenovo IdeaPad U160/U165
Fn key combinations
The  following  table  shows  the  function  of  each  combination  of  Fn  with  a function key.
Table 4. Fn key combinations
Key combinationDescription
Fn + Esc:Turn on/off the integrated camera.Fn + F1:Enter sleep mode.Fn + F2:Turn on/off the LCD screen.
Fn + F3:Open  the  interface  for  the  display  device  switch  to  select notebook or external display.Fn + F5:Open  the  interface  for  integrated  wireless  devices  settings (enable/disable). Fn +...

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IdeaPad U160/U165 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.•...

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Lenovo IdeaPad U160/U165
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 32.
3. Begin  by  removing  any  FRUs  that  have  to  be...

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IdeaPad U160/U165 Hardware Maintenance Manual
1010 Battery pack
 DANGER
Only use the battery specified in the parts list for your computer. Any other battery could ignite or explode. 
Figure 1. Removal steps of battery pack
Unlock  the  battery  release  lever 1.  Holding  the  battery  release  lever  in  the unlocked  position 2,  remove  the  battery  pack  in  the  direction  shown  by  arrow 3.
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2
1
1
When  installing:  Install  the  battery  pack  along  the  slide  rails  of  the  slot. Then...

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Lenovo IdeaPad U160/U165
1020 Dummy card
For access, remove this FRU:
• “1010 Battery pack” on page 34
Figure 2. Removal steps of dummy card
Open the memory card slot cover in the direction shown by arrow 1. Remove the dummy card in the direction shown by arrow 2.
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IdeaPad U160/U165 Hardware Maintenance Manual
1030 SIM card
For access, remove this FRU: 
• “1010 Battery pack” on page 34
Figure 3. Removal steps of SIM card
Push  the  SIM  card  in  until  you  hear  a  click,  and  then  pull  the  SIM  card  out  in the direction shown by arrow 1.
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