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Preface Notebook Computer W251CUQ-C/W253CUQ/W255CU/W258CUQ-C Service Manual...
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Preface Notice The company reserves the right to revise this publication or to change its contents without notice. Information contained herein is for reference only and does not constitute a commitment on the part of the manufacturer or any subsequent ven- dor.
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Preface About this Manual This manual is intended for service personnel who have completed sufficient training to undertake the maintenance and inspection of personal computers. It is organized to allow you to look up basic information for servicing and/or upgrading components of the W251CUQ- C/W253CUQ/W255CU/W258CUQ-C series notebook PC.
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Preface IMPORTANT SAFETY INSTRUCTIONS Follow basic safety precautions, including those listed below, to reduce the risk of fire, electric shock and injury to per- sons when using any electrical equipment: 1. Do not use this product near water, for example near a bath tub, wash bowl, kitchen sink or laundry tub, in a wet basement or near a swimming pool.
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Preface Instructions for Care and Operation The notebook computer is quite rugged, but it can be damaged. To prevent this, follow these suggestions: Don’t drop it, or expose it to shock. If the computer falls, the case and the components could be damaged. Do not expose the computer Do not place it on an unstable Do not place anything heavy...
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Preface Avoid interference. Keep the computer away from high capacity transformers, electric motors, and other strong mag- netic fields. These can hinder proper performance and damage your data. Take care when using peripheral devices. Use only approved brands of Unplug the power cord before peripherals.
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Preface Battery Precautions • Only use batteries designed for this computer. The wrong battery type may explode, leak or damage the computer. • Do not continue to use a battery that has been dropped, or that appears damaged (e.g. bent or twisted) in any way. Even if the computer continues to work with a damaged battery in place, it may cause circuit damage, which may possibly result in fire.
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Preface Related Documents You may also need to consult the following manual for additional information: User’s Manual on CD This describes the notebook PC’s features and the procedures for operating the computer and its ROM-based setup pro- gram. It also describes the installation and operation of the utility programs provided with the notebook PC. System Startup 1.
Chapter 1: Introduction Overview This manual covers the information you need to service or upgrade the W251CUQ-C/W253CUQ/W255CU/W258CUQ- C series notebook computer. Information about operating the computer (e.g. getting started, and the Setup utility) is in the User’s Manual. Information about drivers (e.g. VGA & audio) is also found in User’s Manual. That manual is shipped with the computer.
Introduction Specifications Processor Video Adapter for N2800 Processor Intel® Atom® Processor N2600 Intel® GMA 3650@640MHz Video Integrated with the N2800 Processor 1.60 GHz, 1MB L2 Cache & 800MHz FSB, TDP 3.5W - BGA Package, 32nm (32 Nanometer) Process Total Available Graphics Memory of up to 384MB Technology Supports DirectX®...
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Introduction Keyboard & Pointing Device Communication Battery Isolated WinKey Keyboard 10Mb/100Mb Base-TX Ethernet LAN Removable 6 Cell Smart Lithium-Ion Battery Pack 48.84WH Built-in TouchPad with Multi-Gesture Functionality 802.11b/g/n Wireless LAN Half Mini-Card Module (Factory Option) Removable 3 Cell Smart Lithium-Ion Battery Pack Interface 24.42WH (Factory Option) Combo WLAN (802.11b/g/n) and Bluetooth v3.0 + HS Half...
Introduction External Locator - Top View with LCD Panel Open Figure 1 Top View 1. Optional Built-In PC Camera 2. LCD 3. Power Button 4. LED Status Indicators 5. Keyboard 6. Built-In Microphone *Note that the microphone location is dependent on your design 7.
Introduction External Locator - Front & Right side Views Figure 2 Front Views 1. LED Power Indicators Figure 3 Right Side Views 1. Microphone-In Jack 2. Headphone-Out Jack 3. USB 2.0 Port 4. Optical Device Drive Bay External Locator - Front & Right side Views 1 - 5...
Introduction External Locator - Left Side & Rear View Figure 4 Left Side View 1. DC-In Jack 2. External Monitor Port 3. RJ-45 LAN Jack 4. HDMI-Out Port 5. 2 * USB 2.0 Ports 6. Vent 7. Multi-in-1 Card Reader Figure 5 Rear View 1.
Disassembly Chapter 2: Disassembly Overview This chapter provides step-by-step instructions for disassembling the W251CUQ-C/W253CUQ/W255CU/W258CUQ-C series notebook’s parts and subsystems. When it comes to reassembly, reverse the procedures (unless otherwise indicat- ed). We suggest you completely review any procedure before you take the computer apart.
Disassembly NOTE: All disassembly procedures assume that the system is turned OFF, and disconnected from any power supply (the battery is removed too). Maintenance Tools The following tools are recommended when working on the notebook PC: • M3 Philips-head screwdriver •...
Disassembly Maintenance Precautions The following precautions are a reminder. To avoid personal injury or damage to the computer while performing a re- moval and/or replacement job, take the following precautions: Power Safety Warning 1. Don't drop it. Perform your repairs and/or upgrades on a stable surface. If the computer falls, the case and other Before you undertake components could be damaged.
Disassembly Disassembly Steps The following table lists the disassembly steps, and on which page to find the related information. PLEASE PERFORM THE DISASSEMBLY STEPS IN THE ORDER INDICATED. To remove the Battery: 1. Remove the battery page 2 - 5 To remove the HDD: 1.
Disassembly Removing the Battery Figure 1 Battery Removal 1. Turn the computer off, and turn it over. 2. Slide the latch in the direction of the arrow (Figure 1a a. Slide the latch and hold it 3. Slide the latch in the direction of the arrow, and hold it in place (Figure 1a in place.
Disassembly Removing the Hard Disk Drive The hard disk drive can be taken out to accommodate other 2.5" serial (SATA) hard disk drives with a height of 9.5mm Figure 2 (h). Follow your operating system’s installation instructions, and install all necessary drivers and utilities (as outlined in HDD Assembly Chapter 4 of the User’s Manual) when setting up a new hard disk.
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Disassembly 3. Remove the hard disk bay cover (Figure 3b Figure 3 4. Grip the tab and slide the hard disk in the direction of arrow (Figure 3c HDD Assembly 5. Lift the hard disk assembly out of the bay (Figure 3d Removal (cont’d.) 6.
Disassembly Removing the Optical (CD/DVD) Device Figure 4 Optical Device 1. Turn off the computer, remove the battery (page 2 - 5) and hard disk (page 2 - Removal 2. Remove the screw at point (Figure 4a 3. Use a screwdriver to carefully push out the optical device at point (Figure 4b a.
Disassembly Removing the System Memory (RAM) Figure 5 RAM Module The computer has one memory socket for 200 pin Small Outline Dual In-line Memory Modules (SO-DIMM) supporting Removal DDR3 1333/ 1066MHz. The main memory can be expanded up to 4GB. The SO-DIMM modules supported are 1GB, 2GB and 4GB and DDRIII Modules.
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Disassembly 8. Insert a new module holding it at about a 30° angle and fit the connectors firmly into the memory slot. 9. The module’s pin alignment will allow it to only fit one way. Make sure the module is seated as far into the slot as it ...
Disassembly Removing the Wireless LAN Module Figure 6 Wireless LAN 1. Turn off the computer, remove the battery (page 2 - 5) and the component bay cover (page 2 - Module Removal 2. The Wireless LAN module will be visible at point on the mainboard.
Disassembly Removing the Keyboard Figure 7 Keyboard Removal 1. Turn off the computer, and remove the battery (page 2 - 2. Remove screws from the bottom of the computer. Press at points to unsnap the LED cover module a. Remove screws from the bottom of the computer.
Part Lists Appendix A: Part Lists This appendix breaks down the W251CUQ-C/W253CUQ/W255CU/W258CUQ-C series notebook’s construction into a series of illustrations. The component part numbers are indicated in the tables opposite the drawings. Note: This section indicates the manufacturer’s part numbers. Your organization may use a different system, so be sure to cross-check any relevant documentation.
Part List Illustration Location The following table indicates where to find the appropriate part list illustration. Table A- 1 Part List Illustration Location Parts W251CUQ-C W255CU W258CUQ-C W253CUQ page A - 3 page A - 4 page A - 5 page A - 6 Bottom (3.5W)
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Schematic Diagrams Appendix B: Schematic Diagrams This appendix has circuit diagrams of the W251CUQ-C/W253CUQ/W255CU/W258CUQ-C notebook’s PCB’s. The fol- lowing table indicates where to find the appropriate schematic diagram. Diagram - Page Diagram - Page Diagram - Page Table B - 1...
Schematic Diagrams CEDARVIEW CPU PART-A-C-F DM I Signal Gr oup Zd iff = 80 Ohm ¡Ó17.5% U15A CEDARVIEW le ng th =bre ak out(<=500m ils )+(<= 6000 m ils ) C305 0.1u_10V_X7R_04 DMI_RXP_0 1.10 DMI_TXP_0 DMI_ICH_IT_MR0_D P DMI_R XP0 DMI_TXP0 DMI_IC H_MT_IR0_DP 9 DMI_RXN_0 DMI_TXN_0...
Schematic Diagrams Tigerpoint PART-A-B USB Signal Gr oup Zdiff = 90 Ohm ¡Ó17.5% s ignal / s pace : 4.5 / 6 m ils U19B U19A USB0 USB Port 0 Tigerpoint Tigerpoint USB1 USB Port 1 DMI_ICH_MT_IR0_DN DMI0RXN USBP0N USB_PN0 20 DMI_ICH_MT_IR0_DP USB_PP0 20 DMI0RXP...
Schematic Diagrams Tigerpoint PART-C SATA Signal Group Zdiff = 95 Ohm ¡Ó17.5% signal / s pace : 4 / 6.5 m ils U19C Tigerpoint SATARXN0 15 RSVD03 SATA0RXN AE20 RSVD04 SATA0RXP SATARXP0 15 AD17 SATA HDD RSVD05 SATA0TXN SATATXN0 15 AC15 RSVD06 SATA0TXP...
Schematic Diagrams CRT, HDMI EM I FCM1005MF-600T01 J_CRT1 CRT_RED *FCM1005MF-600T01-short 108AH15FST04A1CC DAC_RED FRED FCM1005MF-600T01 CRT_GREEN *FCM1005MF-600T01-short FGRN DAC_GREEN FBLU FCM1005MF-600T01 CRT_BLUE *FCM1005MF-600T01-short DAC_BLUE CRT DAC Signal Group CRT_DDCADAT CRT_RED,CRT_GREEN,CRT_BLUE CRT_HSY NC_R VGA RGB r e sistors cols e to Conne cter CRT_VSYNC_R Zo = 50 Ohm ¡Ó15% signal : 4 m ils...
Schematic Diagrams USB PORT & USB CHARGER Audio B'd CONN C261 *10u_10V_Y 5V_08 USB Charge PORT USBVCC_A VDD5 C145 USB Charge Port ¬°Port2 C422 0.01u_16V_X7R_04 USBVCC_A *10u_10V_Y5V_08 80mils 80mils USB PORT_2 (Audio Board) 1.5A 80mils D02A USB_PN2_R C148 USB_PN2 DM_O DM_IN Change R193/R194 to J_AUDIO1...
Schematic Diagrams POWER SWITCH & LID BOARD POWER SW & LED & HOT KEY LID SWITCH IC S_3.3VS POWER LED P/N SWITCH 6-52-56001-023 6-52-56001-028 6-52-56000-020 S_VDD3 S_3.3VS S_VDD3 6-52-56001-022 220_04 100K_04 20mil 20mil SJ_SW2 5/13 S_VDD3 20mil MH248-ALFA-ESO *BAV99 RECTIFIER SM_BTN# SWEB_WWW# SLID_SW#...
Download the BIOS computer model. 1. Go to www.clevo.com.tw and point to E-Services and click E-Channel. Note that BIOS versions 2. Use your user ID and password to access the appropriate download area (BIOS), and download the latest BIOS files...
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BIOS Update Use the flash tools to update the BIOS 1. Make sure you are not loading any memory management programs such as HIMEM by holding the F8 key as you see the message “Starting MS-DOS”. You will then be prompted to give “Y” or “N” responses to the programs being loaded by DOS.
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