Page 3
Preface Notebook Computer M720S Service Manual...
Page 4
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.
Page 5
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 M720S series notebook PC.
Page 6
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.
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...
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.
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.
Page 10
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. VIII...
Chapter 1: Introduction Overview This manual covers the information you need to service or upgrade the M720S series notebook computer. Information about operating the computer (e.g. getting started, and the Setup utility) is in the User’s Manual. Information about driv- ers (e.g.
Introduction System Specifications Feature Specification Processor Intel® Core™2 Duo Processor 65nm (65 Nanometer) Process Technology (478-pin) Micro-FC-PGA Package 4MB On-die L2 Cache & 667MHz FSB T7200/ T7400/ T7600 2.0/ 2.16/ 2.33 GHz Intel® Core™2 Duo Processor 65nm (65 Nanometer) Process Technology (478-pin) Micro-FC-PGA Package 2MB On-die L2 Cache &...
Page 15
Introduction Feature Specification Storage One Changeable 12.7mm(h) Optical Device (CD/DVD) Type Drive (see “Optional” on page 1 - 4 for drive options) Easy Changeable 2.5" 9.5 mm (h) SATA (Serial) HDD Audio Intel High Definition Audio Compliant Interface A3D™ Compatible Compliant with Microsoft UAA (Universal Audio S/PDIF Digital Output Architecture)
Page 16
Introduction Feature Specification Power Manage- Supports ACPI 3.0 ment Power Full Range AC/DC Adapter AC input 100 - 240V, 50 - 60Hz, DC Output 19V, 3.42A or 18.5V,3.5A (65 Watts) Battery 4 Cell Smart Lithium-Ion Battery Pack, 14.8V/2.4AH 4 Cell Smart Lithium-Ion Battery Pack, 14.4V/2.4AH (Option) 8 Cell Smart Lithium-Ion Battery Pack, 14.8V/4.4AH (Option) Environmental Temperature...
Introduction External Locator - Top View with LCD Panel Open Figure 1 Top View 1. Built-In PC Camera (Optional) 2. LCD 3. Speakers 4. Power Button 5. Hot Key Buttons 6. LED Status Indicators 7. Keyboard 8. Touchpad & Buttons 9.
Introduction External Locator - Left & Right Side View Figure 4 Left Side View 1. DC-In Jack 2. RJ-45 LAN Jack 3. External Monitor Port 4. Vent/Fan Intake/ Outlet 5. 2 * USB 2.0 Ports 6. Express Card Slot Figure 5 Right Side View 1.
Introduction External Locator - Bottom View Figure 6 Bottom View 1. Battery 2. Hard Disk Bay Cover (3.5G Module Location) 3. RAM & CPU Bay Cover Overheating To prevent your com- puter from overheating make sure nothing blocks the vent/fan in- takes while the com- puter is in use.
Chapter 2: Disassembly Overview This chapter provides step-by-step instructions for disassembling the M720S series notebook’s parts and subsystems. When it comes to reassembly, reverse the procedures (unless otherwise indicated). 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: To remove the Optical Device: 1. Remove the battery page 2 - 5 1.
Disassembly Removing the Battery Figure 1 1. Turn the computer off, and turn it over. Battery Removal Slide the latch in the direction of the arrow. Slide the latch in the direction of the arrow, and hold it in place. a.
Disassembly Removing the Hard Disk Drive The hard disk drive is mounted in a removable case and can be taken out to accommodate other 2.5" SATA hard disk Figure 2 drives with a height of 9.5mm (h). Follow your operating system’s installation instructions, and install all necessary driv- HDD Assembly ers and utilities (as outlined in Chapter 4 of the User’s Manual) when setting up a new hard disk.
Page 31
Disassembly 4. Carefully grip the mylar cover tag and slide the hard disk in the direction of arrow. Figure 3 5. Lift the hard disk up Figure d in the direction of arrow. HDD Assembly 6. Remove the screws and separate the mylar cover from the hard disk Sequence Removal...
Disassembly Removing the System Memory (RAM) Figure 4 RAM Module The computer has two memory sockets for 200 pin Small Outline Dual In-line Memory Modules (SO-DIMM) supporting Removal DDRII 533/677MHz. The main memory can be expanded up to 4GB. The SO-DIMM modules supported are 256MB, 512MB, 1024MB and 2048MB DDRII Modules.
Page 33
Disassembly 7. Gently pull the two release latches ( & on the sides of the memory socket in the direction indicated by the Figure 5 arrows (Figure Memory Removal 8. The RAM module(s) will pop-up Figure e , and you can then remove it Sequence d.
Disassembly Removing the Processor Figure 6 Processor Removal 1. Turn off the computer, and remove the battery (page 2 - 5) and the CPU/RAM bay cover (page 2 - 2. The CPU heat sink will be visible at point on the mainboard. a.
Page 35
Disassembly 5. Turn the release latch towards the unlock symbol , to release the CPU (Figure 6. Carefully (it may be hot) lift the CPU up out of the socket (Figure 7. Reverse the process to install a new CPU. 8.
Disassembly Removing the Wireless LAN Module Figure 8 Wireless LAN 1. Turn off the computer, and remove the battery (page 2 - 5) and the CPU/RAM bay cover (page 2 - Module Removal 1. The Wireless LAN module will be visible at point on the mainboard.
Disassembly Removing the Bluetooth Module Figure 9 Bluetooth Removal 1. Turn off the computer, and remove the battery (page 2 - 5) and the CPU/RAM bay cover (page 2 - 2. The Bluetooth module will be visible at point on the mainboard. a.
Disassembly Removing the Optical (CD/DVD) Device Figure 10 Optical Device 1. Turn off the computer, and remove the battery (page 2 - 5) and the CPU/RAM bay cover (page 2 - Removal 2. Remove the screw at point , and use a screwdriver to carefully push out the optical device at point 3.
Disassembly Removing the Keyboard Figure 11 Keyboard Removal 1. Turn off the computer, and remove the battery (page 2 - 2. Press the three keyboard latches at the top of the keyboard to elevate the keyboard from its normal position (you a.
Disassembly Removing the Modem 1. Turn off the computer, and remove the battery (page 2 - 5) and the CPU/RAM bay cover (page 2 - 8) and the opti- Figure 12 cal device (page 2 - 14) and the keyboard (page 2 - 15).
Part Lists Appendix A:Part Lists This appendix breaks down the M720S 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.
Table A - 1 Part List Illustration Part M720S Location page A - 3 Top with Fingerprint - (M720S) page A - 4 Top without Fingerprint - (M720S) page A - 5 Bottom - (M720S) page A - 6 LCD - (M720S)
Schematic Diagrams Appendix B:Schematic Diagrams This appendix has circuit diagrams of the M720S notebook’s PCB’s. The following table indicates where to find the ap- propriate schematic diagram. Diagram - Page Diagram - Page Diagram - Page Table B - 1...
Schematic Diagrams SiS307ELV L1<=400mils 1.8VS VB_PCIEVD D Close to 307 side H CB1608KF-121T25 C 410 .1U_10V_X7R_04 HDVBN2_R HD VBN2 4 HDVBP2_R C 411 .1U_10V_X7R_04 HD VBP2 4 C 39 C 43 HDVBN1_R C 408 .1U_10V_X7R_04 HD VBN1 4 HDVBP1_R C 409 .1U_10V_X7R_04 HD VBP1 4 10U_10V_08...
Schematic Diagrams VCORE VCORE FOR MEROM AND SANTA ROSA CPU V-RC1 PC 110 PC 115 PD 12 1U_10V_06 1000P_50V_04 FM0540-N PR 103 ? ? ? Santa Rosa CPU ? ? ? ? ? ? 10_06 BST1 PC24 PC 23 PC 22 PC92 PR107 *0_04...