Page 3
Preface Notebook Computer M540SS/M548SS/M549SS 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.
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 M540SS/ M548SS/M549SS 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 remove any batteries from the computer while it is powered on. • 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.
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 M540SS/M548SS/M549SS series notebook com- puter. Information about operating the computer (e.g. getting started, and the Setup utility) is in the User’s Manual. In- formation about drivers (e.g. VGA & audio) is also found in User’s Manual. That manual is shipped with the computer.
Introduction External Locator - Top View with LCD Panel Open Figure 1 Top View 1. Optional Built-In PC Camera 2. LCD 3. Speakers 4. LED Status Indicators 5. Hot Key Buttons 6. Power Button 7. Keyboard 8. TouchPad and Buttons 9.
Introduction External Locator - Front & Right side Views Figure 2 Front Views 1. LED Power & Communication Indicators 2. 7-in-1 Card Reader Figure 3 Right Side Views 1. Headphone-Out Jack 2. Microphone-In Jack 3. USB 2.0 Port 4. RJ-11 Modem Jack 5.
Introduction External Locator - Left Side & Rear View Figure 4 Left Side View 1. RJ-45 LAN Jack 2. Vent/Fan Intake 3. 2 * USB 2.0 Ports 4. S/PDIF-Out Jack 5. Line-In Jack 6. ExpressCard Slot Figure 5 Rear View 1.
Introduction External Locator - Bottom View Figure 6 Bottom View 1. Vent/Fan Intake 2. Battery 3. Component Bay Cover 4. Hard Disk Cover Model A Model B 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 M540SS/M548SS/M549SS 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 Bluetooth Modules: 1. Remove the battery page 2 - 5 1.
Disassembly Removing the Battery 1. Turn the computer off, and turn it over. 2. Slide the latch in the direction of the arrow, and hold it in place. Figure 1 3. Slide the battery in the direction of the arrow Battery Removal 4.
Page 30
Disassembly 6. Insert the battery by pushing it straight down into the battery bay (it will only fit one way, don’t force it). Figure 1 7. Make sure the battery is sitting flat in the slot, and then slide the battery in the direction of the arrow until the Battery Insertion lock clicks into 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.
Page 32
Disassembly For Model A computers: Figure 3 3. Slide the hard disk and cover assembly in the direction of arrow HDD Assembly 4. Lift the hard disk and cover assembly up in the direction of arrow Removal (cont’d.) 5. Remove the hard disk and cover assembly 6.
Page 33
Disassembly For Model B & C computers: Figure 4 7. Remove the HDD Bay Cover HDD Assembly 8. Pull the tab to slide the hard disk and case assembly in the direction of arrow Removal (cont’d.) 9. Lift the hard disk and case assembly out of the bay in the direction of arrow 10.
Disassembly Removing the System Memory (RAM) Figure 5 The computer has two memory sockets for 200 pin Small Outline Dual In-line Memory Modules (SO-DIMM) supporting RAM Module Removal DDR2 667MHz. The main memory can be expanded up to 2GB. The SO-DIMM modules supported are 512MB, 1024 and 2048MB and DDRII Modules.
Page 35
Disassembly 4. Gently pull the two release latches ( & on the sides of the memory socket in the direction indicated by the Figure 6 arrows (Figure 6c). RAM Module Removal (cont’d.) c. Pull release latch(es). d. Remove the module(s). 5.
Disassembly Removing the Optical (CD/DVD) Device Figure 7 Optical Device 1. Turn off the computer, and remove the battery (page 2 - Removal 2. Locate the component bay cover , and remove screws (Model A)/ (Models B & C). 3. Remove the component bay cover a.
Disassembly Removing and Installing the Processor Processor Removal Procedure Figure 8 Processor Removal 1. Turn off the computer, remove the battery (page 2 - 5) and the component bay cover (page 2 - 10). 2. The CPU heat sink will be visible at point on the mainboard.
Page 38
Disassembly 5. Turn the release latch towards the unlock symbol , to release the CPU (Figure 9a). Figure 9 6. Carefully (it may be hot) lift the CPU up out of the socket (Figure 9b). Processor Removal 7. See page 2 - 15 for information on inserting a new CPU.
Disassembly Processor Installation Procedure Figure 10 Processor 1. Insert the CPU , pay careful attention to the pin alignment, it will fit only one way (DO NOT FORCE IT!), and turn Installation the release latch towards the lock symbol (Figure 10b).
Disassembly Removing the Wireless LAN Module Figure 11 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 Bluetooth Module Figure 12 Bluetooth Removal 1. Turn off the computer, remove the battery (page 2 - 5), the component bay cover (page 2 - 10) and remove the WLAN module (page 2 - 16). 2. The Bluetooth module is located under the Wireless LAN Module. a.
Disassembly Removing the Inverter Board Figure 14 Inverter Board 1. Turn off the computer, and remove the battery (page 2 - Removal 2. Remove any rubber covers and screws (Figure 14a), then run your finger around the middle of the frame to carefully unsnap the LCD front panel module from the back.
Disassembly Removing the Keyboard Figure 15 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 Keyboard Removal may need to use a small screwdriver to do this).
Part Lists Appendix A: Part Lists This appendix breaks down the M540SS/M548SS/M549SS 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 Parts Pages# Location page A - 3 Top with CardReader (M540SS) page A - 4 Top without CardReader (M540SS) page A - 5 Top with Fingerprint (M548SS) page A - 6 Top without Fingerprint (M548SS)
Schematic Diagrams Appendix B: Schematic Diagrams This appendix has circuit diagrams of the M540SS/M548SS/M549SS notebook’s PCB’s. The following table indicates where to find the appropriate schematic diagram. Table B - 1 Diagram - Page Diagram - Page Diagram - Page...
Schematic Diagrams Processor 1/2 J S K T 1 A H _ A # [ 3 5 : 3 ] H _ A # 3 J S K T1 B H _ A D S # H _ D # [ 6 3 : 0 ] H _ D # [ 6 3 : 0 ] 4 A [ 3 ] # A D S #...
Schematic Diagrams Processor 2/2 Check cap for santa rosa platform V CO RE PLACE NEAR CPU JS KT1D C452 C 71 C 50 V COR E V COR E V SS [001] V SS [082] JS KT1C P 21 10U_6.3V _08 10U_6.3V _08 10U_6.3V _08 1 0U_6.3V_0 8...
Schematic Diagrams SiSM672 HOST PCIE 1/5 1.8V S C1X A V DD H CB 1005K F -121T 20 U13C H _D#[63:0] 2 H_D# 0 B 16 C1X A V DD C1X A V DD H D0# C128 C 158 C161 M 30 H_D# 1 C1X A V S S...
Schematic Diagrams SiSM672 DRAM 2/5 U13B 9,10 M _A_D Q[63: 0] M _A_DQ 0 AD31 MD0A M _A_DQ 1 AD30 MD1A M _A_DQ 2 AG34 A 15 MD2A D1X A V DD D1X A VDD M _A_DQ 3 A E29 B 15 MD3A D 1X AV S S...
Schematic Diagrams SiSM672 PWR 4/5 U13E 1.8V 1.2VS V CC M M1 3 V CC M IVDD C2 40 C246 C276 C2 49 AA 23 M1 4 V CC M IVDD AB 23 M1 5 C2 05 C176 C170 V CC M IVDD 1 0U_10V_08 10U_ 10V_08...
Schematic Diagrams SiSM672 GND 5/5 C237B 128D107 C355CH 512B296D111 N C355C H512B 296D111N A d d T h r o u g h H o l e f i x T h e r m a l I s s u e . U13F H 25 C237D91...
Schematic Diagrams DDRII SO-DIMM - 2 SO-DIMM 0 1.8V Closed to NB(Solt JDIMM 2 lower). 5,10 M_A _A[17:0] M_A _DQ[63:0] 5, 1 0 M _A_A 0 M _A_D Q0 D Q0 M _A_A 1 M _A_D Q1 D Q1 M _A_A 2 M _A_D Q2 D Q2 M _A_A 3...
Schematic Diagrams DDRII SO-DIMM - 1 SO-DIMM 1 1.8V M _A_ A[17:0] Far from NB(Slot JDIM M 1 Layout Note: Higher). Two pieces of 56 ohms must use o ne M _A _A[17 : 0 ] M _A _DQ[63:0] 5,9 M _A _A0 1 02 M _A _DQ 0...
Schematic Diagrams Panel, Fan PANEL P LV DD 3. 3V S 40 m ils V DD3 4 0 mils SY S15V JLCD1 0.1u_16V _04 4. 7U _6. 3V _06 4. 7U _6. 3V _06 0. 1u_ 16V_04 LV DS -UCLK P 4 0 mil s LVDS -UCLK P 18 LV DS-L0N...
Schematic Diagrams LAN PHY Realtek 8201CL PHY Address : 01 Close to R TL820 1CL MDC_P HY P WFBO UT P WFBOU T MDIO_P HY M DIO_PH Y MDIO A VD D33 V _LAN_3.3 TX D0_PH Y TX D0 C 66 TX D1_PH Y TX D1 22p_50V _04...
Schematic Diagrams 968 PCI IDE MuTIOL SPI 1/4 6- 16- 472 38-4 5A 3.3V S RN18 8P 4RX 8. 2 K_04 PC I_RE Q2# PC I_I N T D# PC I_I N T B # PC I_I N T C# R1 59 8.2K _04 PC I_RE Q0#...
Schematic Diagrams 968 PCIE LAN GPIO 2/4 U20 B R31 9 0_ 04 Z140 4 C 557 22p_50V _04 A VS S _GM AC CM P A VS S _GM AC CM P 18 AV DD _GM AC CM P 18 A VD D_GM A CCM P A C23 R 318...
Schematic Diagrams 968 USB SATA 3/4 USB0: Port0 On Board U20C USB1: Port1 On Board Mini PCIE A 22 US B _P P0 CLK _12M _US B 1 7 UV 0+ O SC 12M H I USB2: Mini PCIE Port1 On Board US B _P N0 UV 0- E 24...
Schematic Diagrams 968 PWR GND 4/4 1.05V S 1.8VS U 20D N 11 VS S U 26 N 12 1.8V S V DD Z VS S W 26 N 13 C382 C 387 C380 C 362 C359 C 370 C352 C 353 V DD Z VS S...
Schematic Diagrams SiS307ELV L 1<=400m ils 1. 8 VS V B_P C I E V DD Cl os e to 3 07 s ide H CB 1005K F -121T 20 HD VB N2_ R C 143 0.1u _10V _X 7R_0 4 HD V BN 2 HD VB P 2_R C 144...
Schematic Diagrams ODD, SATA, USB2.0 *2 I D E _ P D D [ 1 5 : 0 ] I D E _ P D D [ 1 5 : 0 ] SATA HDD SIS? ? ? ? CD-ROM ? ? ? ? ? Connector J C D 1 JS A T A 1...
Schematic Diagrams Card Reader JMB385 3.3V S 3. 3 VS C4 7 2 Ne ar to Pin30 R302 4.7K_0 4 S D_ CD# R303 4.7K_0 4 M S_ I N S# C533 DV 1.8V R337 10K _04 M DIO7 0.1u_16V _04 V CC _CA RD C573 S D_CL K...
Schematic Diagrams KBC-ITE IT8512E V D D 3 L 30 K B C _ A V D D C 3 2 6 C 3 0 9 C 3 2 2 C 32 0 H C B 1 0 0 5K F - 12 1 T2 0 WE B 0# - - - APK EY R 26 9 1 0K _ 0 4...
Schematic Diagrams Mini Card, New Card, TPM, FGPT MINI CARD 3.3VS 20mils 3.3V 20mils 1.5VS 30mils J M I N I 1 P C I E _ W A K E # 4, 1 5 P C I E _ W A K E # W A K E # 3 .
Schematic Diagrams AZALIA Codec ALC883 V e ry Closed to Codec A LC883. 5V S _A UD 3VS _A UD 20 m ils 3.3V S 5V S M IC 1-VR EF O-R M IC 1-VR EF O-L 2 0m ils H CB 1005K F - 12 1T 20 3V S _A UD C 575...
Schematic Diagrams Audio AMP2056A R _ I N _ H P C 5 6 8 * 6 8p _ 5 0 V _ 0 4 R _ H P _ OU T _ C L _ I N _ H P L _H P _ O U T _ C C 5 6 7 * 6 8p _ 5 0 V _ 0 4...
Schematic Diagrams TouchPad, LED S W1 TOUCH PAD TP BU TTON_L TC031-A A1G - A 160T JTP_1 VENDO R PART NUMBE R Z2301 TPB UTTON_R S W2 Synapt ics TPB UTTON_L Z2302 E -LAN 8 00409 -5102 TP BU TTON_R JTP_14 TP_CLK C 149...
Schematic Diagrams System Power 1.2VS,1.5VS,1.8VS,3.3VS,5VS P Q3 P Q4 1 P Q4 3 S Y S 15 V 1 . 2 V A O4 4 6 8 1 . 2 V S S Y S 15 V V D D 5 5 V S S Y S 1 5 V V D D 3...
Schematic Diagrams VCORE V I N P C 3 P C 4 8 P C 1 6 4 P C 4 6 P C 47 0 . 0 1 u _ 50 V _ 0 4 * 2 2u _ 2 5 V _ 8 *1 1 _ E C 6 8 0 u _ 2 5V _1 0 * 16 _ E C * 4 .
Schematic Diagrams VDD3, VDD5 V I N 1 L D O5 V L D O 5 V ? VD D3 VD D5 High Si de ? ? ? ? 2pcs 10u_25V P C 1 3 9 P C 1 4 3 P C 1 4 0 V I N P R 1 0 4...
Schematic Diagrams 1.05VS, 1.2V, 1.5V HC B100 5KF -121T 2 0 PC 88 P C90 P C 91 P C86 P L5 Z 3001 P R8 1 10_06 Z30 11 P C112 1U _6.3V _04 PC 85 P C92 P C87 0.
Schematic Diagrams 1.8V, 0.9VS V IN 3.3V P R33 PR 34 P R31 P D4 100K _04 1M _04 10_06 V 1.8 FM0540-N P U1 P R35 10_06 Z3101 1.8V_P W RGD 27 V DDQS P GD P C27 PR 30 P C33 P C30 PR 29...
Schematic Diagrams D/D BD (Charger, DC-In) M P Q 4 M + V I N S I 4 8 3 5 B D Y -T 1 -E 3 CHARGER Circuit 65W/3.42A 4A 160mil M +V A M P Q5 MD C _ JA C K 1 M P L 1 S I 4 8 3 5 B D Y -T 1 -E 3 M+ V A...
Schematic Diagrams Audio BD (Phone Jack, RJ-11, USB) RJ-11 PLANE DIGITAL PLANE ? ? ? ? ? ? ? ? ? P J L 7 60 m ils 2.5mm ? ? P J + V C C U S B 3 H C B 2 0 12 K F -5 00 T 4 0 P J U S B 1 PJ MODEM...
Schematic Diagrams Hot key BD (Hot key, LED) FOR M540R P S+ 5V S P S + 5VS P S + 5V S P S + 5VS POWER NUM LOCK CAPS LOCK SCROLL SWITCH LOCK P S R4 PS R1 P SR 3 PS R2 4 70_06...
Schematic Diagrams FingerPrint Board F 3. 3 V F 3.3V FJ_F P 1 F C20 F C21 F L1 FU SB _P P4 F CM 1608K -121T 06 1U_1 0V_06 .1u_16V _04 F US B_P N4 FG PIO 0/I N T F R19 1.5K _04 F GND...