Preface
IX
Preface
Contents
Introduction ..............................................1-1
Overview ......................................................................................... 1-1
Specifications .................................................................................. 1-2
External Locator - Top View with LCD Panel Open ......................1-4
External Locator - Front & Right Side Views .................................1-5
External Locator - Left Side & Rear View .....................................1-6
External Locator - Bottom View .....................................................1-7
Mainboard Overview - Top (Key Parts) .........................................1-8
Mainboard Overview - Bottom (Key Parts) ....................................1-9
Mainboard Overview - Top (Connectors) .....................................1-10
Mainboard Overview - Bottom (Connectors) ...............................1-11
Disassembly ...............................................2-1
Overview ......................................................................................... 2-1
Maintenance Tools ..........................................................................2-2
Connections ..................................................................................... 2-2
Maintenance Precautions .................................................................2-3
Disassembly Steps ...........................................................................2-4
Removing the Battery ......................................................................2-5
Removing the Hard Disk Drive .......................................................2-6
Removing the System Memory (RAM) .......................................... 2-8
Removing the Keyboard ................................................................2-10
Removing the Wireless LAN Module ...........................................2-12
Wireless LAN and Combo Module Cables ...................................2-13
Removing the 3G Module .............................................................2-14
Removing and Installing the M.2 SSD Module ...........................2-15
Removing the CCD .......................................................................2-17
Part Lists ..................................................A-1
Part List Illustration Location ........................................................ A-2
Top ................................................................................................. A-3
Bottom ........................................................................................... A-4
LCD ............................................................................................... A-5
HDD .............................................................................................. A-6
MB ................................................................................................ A-7
Schematic Diagrams................................. B-1
System Block Diagram ...................................................................B-2
Processor 1/11 .................................................................................B-3
Processor 2/11 .................................................................................B-4
Processor 3/11 .................................................................................B-5
Processor 4/11 .................................................................................B-6
Processor 5/11 .................................................................................B-7
Processor 6/11 .................................................................................B-8
Processor 7/11 .................................................................................B-9
Processor 8/11 ...............................................................................B-10
Processor 9/11 ...............................................................................B-11
Processor 10/11 .............................................................................B-12
Processor 11/11 .............................................................................B-13
DDR SO-DIMM_0 .......................................................................B-14
DDR SO-DIMM_1 .......................................................................B-15
HDMI ............................................................................................B-16
Panel .............................................................................................B-17
Conn, CCD, Fan, T/P, TV ............................................................B-18
RTD2316N ...................................................................................B-19
SATA, LED, KB, G-Sensor .........................................................B-20
USB Port, TPM .............................................................................B-21
USB ...............................................................................................B-22
WLAN/BT, 3G/mSATA ...............................................................B-23
M Key PCIE * 4 SSD ...................................................................B-24
Audio Codec .................................................................................B-25
KBC ITE IT8587 ..........................................................................B-26
Summary of Contents for N250WU
Page 1: ...N250WU N251WU N252WU ...
Page 2: ......
Page 3: ...Preface I Preface Notebook Computer N250WU N251WU N252WU Service Manual ...
Page 24: ...Introduction 1 12 1 Introduction ...
Page 45: ...Top A 3 A Part Lists Top Figure A 1 Top ...
Page 46: ...A 4 Bottom A Part Lists Bottom Figure A 2 Bottom ...
Page 47: ...LCD A 5 A Part Lists LCD Figure A 3 LCD ...
Page 48: ...A 6 HDD A Part Lists HDD Figure A 4 HDD ...
Page 49: ...MB A 7 A Part Lists MB Figure A 5 MB ...
Page 50: ...A 8 A Part Lists ...