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 1. Specifications

FeatureDescription
Processor• U160: Intel Calpella ULV/CULV, Core 2 Duo, Celeron • U165: AMD Nile dual core and single coreCore Chipset•  U160: HM55 for Intel• U165: RS880M/SB820M for AMDBus architecture• 667MHz FSB• 667MHz DDR2 SDRAM • PCI Express Bus• PCI Bus (not used)• DMIGraphic memory chip • U160: Intel GMA for Intel Platform• U165:  ATI  Mobility  Radeon  HD  4200  with  optional  128MB LFBDisplay• 11.6" HD, White LED backlight, Flat type• 1366 x 768 resolutionStandard memory• U160: Intel DDR3-1066 MHz    1x1GB slot, 2x1GB slot,1x2GB slot• U165: AMD DDR3-1066MHz (actual running speed of 800 MHz)    1x1GB slot, 2x1GB slot,1x2GB slotCMOS RAM•  256 bytesHard disk drive • U160: 250/320/500GB, 5400rpm, 2.5" SATA• U165: 160/250/320/500GB, 5400rpm, 2.5" SATA
Optical drive • Support USB external ODD 
						

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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• Wireless LAN MiniCard (PCIe) slot x 1(half size)• Wireless WAN MiniCard (PCIe) slot x 1(full size)
Bluetooth wireless • Bluetooth module V2.1• Built-in antenna with min-USB interface, select ModelsKeyboard• 260 mm width KeyboardTouch pad • Two clicks and 1 LED indicatorIntegrated camera• U160: 1.3M pixel• U165: 0.3M pixelBattery• 3 cells/6 cells cylinder battery, 2200mAH 
AC adapter• U160: 20V/40W• U165: 20V/65WPre-installed operating system 
• Windows 7 Home Starter (32bit)• Windows 7 Home Basic (32bit)• Windows 7 Home Basic (64bit)• Windows 7 Home Premium (32bit)• Windows 7 Home Premium  (64bit)• Free DOS 
						

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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 press the Delete(ScrLk) key.   
3Power onWhite:System is enabled. Blinking white: 
 System is in sleep mode.
Off:  System is in hibernate mode or shut down. 
						

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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  being  charged  with  the  remaining power between 20% and 80% of its capacity.White:The  remaining  power  of  the  battery  is  more  than 80% of its capacity, or the computer is operating on battery  power  with  the  remaining  power  between 20% and 80% of its capacity.
5Wireless statusWhite:Any one of the wireless devices (WLAN/Bluetooth/WWAN) is enabled.Off:All  the  wireless  devices  (WLAN/Bluetooth/WWAN) are disabled.
6Drive in useWhite:Data  is  being  read  from  or  written  to  the  hard  disk drive.  When  this  indicator  is  on,  do  not  put  the computer into standby mode or turn off the computer.Note: Do  not  move  the  system  while  the  white  drive-in-use light is on. Sudden physical shock could cause drive errors. 
7TouchpadWhite:The  touchpad  is  disabled.  To  enable  or  disable  the touchpad,  press  and  hold  the  Fn  key,  and  press  the F6 key. 
						

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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 + F6:Enable/Disable the touchpad.Fn + F7:Start/Pause playback of Windows Media Player.Fn + F8:Stop playback of Windows Media Player.Fn + F9:Skip to the previous track.Fn + F10:Skip to the next track.Fn + F11:Activate the F12 function.* You  can  press  Fn+F11  during  computer  startup  to  open the boot selection menu.Fn + PrtSc:Activate the system request.Fn + Pause:Activate the break function.Fn + Delete:Enable/Disable the Scroll Lock.Fn + / :Increase/Decrease display brightness.Fn + / :Increase/Decrease volume level. 
						

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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.• 
They are harder to tighten.• 
Each one should be used only once.• 
Do the following when you service this machine: 
Keep the screw kit in your tool bag.• 
Always use new screws.• 
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. Never  use  a screw  that  you  removed.  Use  a  new  one.  Make  sure  that  all  screws  are tightened firmly.
Ensure  torque  screwdrivers  are  calibrated  correctly  following  country • specifications. 
						

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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  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 60.
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,  remove  the  battery  pack,  and  then  disconnect  any  of  the 
interconnecting cables. 
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.
Attention:  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 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 make sure that the battery release lever is in the locked position.  
						

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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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