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MiTAC 8555 Service Manual

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SERVICE MANUAL FOR
SERVICE MANUAL FOR
SERVICE MANUAL FOR
Repair Technology Research Department /EDVD
Repair Technology Research Department /EDVD
8555
8555
8555
BY:
Valley.
Hu
Valley.
Hu
Oct.2003

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  • Page 1 SERVICE MANUAL FOR SERVICE MANUAL FOR SERVICE MANUAL FOR 8555 8555 8555 Valley. Valley. Repair Technology Research Department /EDVD Repair Technology Research Department /EDVD Oct.2003...

  • Page 2: Table Of Contents

    8555 N/B Maintenance Contents 1. Hardware Engineering Specification ---------------------------------------------------------------------------- ---------------------------------------------------------------------------------------------------------- 1.1 Introduction --------------------------------------------------------------------------------------------------- 1.2 System Overview - ------------------------------------------------------------------------------------------------- 1.3 System Architecture -------------------------------------------------------------------------------------------- Electrical Characteristic ---------------------------------------------------------------------------------------------- APPENDIX -------------- 2. System View & Disassembly -------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------------------- 2.1 System View ------------------------------------------------------------------------------------------------ 2.2 System Disassembly - 3.
  • Page 3 8555 N/B Maintenance Contents 8. Trouble Shooting -------------------------------------------------------------------------------------------------- ----------------------------------------------------------------------------------------------------------- 8.1 No Power ----------------------------------------------------------------------------------------- 8.2 Battery Can’t Be Charged ---------------------------------------------------------------------------------------------------------- 8.3 No Display ---------------------------------------------------------------------------- 8.4 LCD No Display or Picture Abnormal --------------------------------------------------------------- 8.5 External Monitor No Display or Color Abnormal- ------------------------------------------------------------------------------------------------ 8.6 Memory Test Error...

  • Page 4: Hardware Engineering Specification

    1. Hardware Engineering Specification 1.1 Introduction This document describes the system hardware engineer specification for 8555 portable notebook computer system. The 8555 notebook computer is a new mainstream high performance thin and light notebook in the MiTAC notebook family. 1.2 System Overview Intel DT Pre-Scott 3.2G, 3.4G, 3.6G backward compatible with DT Northwood P4 2.4G, 2.6G, 2.8G, 3.06G,...
  • Page 5 8555 N/B Maintenance Display 14.1” XGA TFT Display; Resolution: 1024x768 15” XGA/ SXGA+ TFT Display; Resolution: 1024X768 /1400x1050 Video Controller ATI M9+X with external 64MB VRAM/ M10P (reserved) Keyboard 19mm key pitch/ 3.0mm key stroke/ 307mm length Windows Logo Key x 1; Application Key x 1...

  • Page 6: System Architecture

    8555 N/B Maintenance 1.3 System Architecture 1.3.1 Block Diagram...

  • Page 7: Function Description

    8555 N/B Maintenance 1.3.2 Function Description 1.3.2.1 CPU • Socketable Intel D/T&Mobile Pentium 4 Prescott / Northwood / Celeron processors with 400/533/800MHz FSB. • Capable of mFC-PGA processor package. • Support 8KB L1 Cache and 256/512/1000 KB L2 Cache (Depends On CPU) 1.3.2.2 CORE LOGIC...
  • Page 8 8555 N/B Maintenance - Integrates three Universal Serial Bus 1.1 Host Controllers. - Integrates the IDE Master/Slave controllers - Supports SiS MuTIOL technology. - Integartes the PCI to LPC bridge - Integrates I/O Advanced Programmable Interrupt Controller - Integrates legacy system I/O and legacy power management functionalities.
  • Page 9 8555 N/B Maintenance 1.3.2.4 I/O PORTS • CRT Port - Standard VGA compatible port - C1 and DDC2B compliant SIGNAL DESCRIPTION Red analog video output GREEN Green analog video output BLUE Blue analog video output Monitor Sense Monitor Sense Ground...
  • Page 10 8555 N/B Maintenance CRT Sport Mode Resolution DCLK Page Size Band Width DRAM Size 1024x768x8@60NI 65Mhz 0.768MB 65MB/s 1024x768x16@60NI 65Mhz 1.536MB 130MB/s 1024x768x32@60NI 65Mhz 3.072MB 260MB/s 1024x768x8@75NI 78.75Mhz 0.768MB 78.75MB/s 1024x768x16@75NI 78.75Mhz 1.536MB 157.5MB/s 1024x768x32@75NI 78.75Mhz 3.072MB 315MB/s 1024x768x8@85NI 94.5Mhz 0.768MB...

  • Page 11: S-Video Port

    8555 N/B Maintenance • 7 Pins S-VIDEO port for TV-Out - Support up 1024*768 resolution - Support PAL and NTSC system - Support Composite Output by a transfer cable. S-Video Port SIGNAL NAME DIRECTION COMP CRMA LUMA...
  • Page 12 8555 N/B Maintenance TV Out Support Modes System Input(Active) Resolution Active TV lines Over/Under scan NTSC 320x200 480 ~ 400 NTSC 640x480 480 ~ 400 NTSC 720x480 480 ~ 400 NTSC 720x400 480 ~ 400 NTSC 800x600 480 ~ 420...
  • Page 13 8555 N/B Maintenance • Audio Ports - SPDIF - Microphone In - Built In 2 high quality internal speaker (2W/4ohm w/ Box) - Built in 1 mono microphone - AC97 V2.2 compliance. Internal Internal LED Of SPDIF Speaker Microphone Plug Ear-Phone In...
  • Page 14 8555 N/B Maintenance • RJ-11 - Connection to Modem Daughter Board Connector or Mini-PCI Modem Card. - Support 56Kbps/V.92 . Signal Name Direction Description No Connect LINE + Phone Line Positive LINE - Phone Line Negative No Connect • RJ-45 -The Fast Ethernet MAC Controller features an IEEE802.3 and IEEE802.3x compliant MAC with externalLAN...
  • Page 15 8555 N/B Maintenance Signal Name Direction Description Transmit Data Ring Transmit Data Tip Receive Data Ring TERM 1 Internal termination resistor TERM 2 Internal termination resistor Receive Data Tip. TERM 3 Internal termination resistor TERM 4 Internal termination resistor • Infrared interface supporting IrDA format - FIR IrDA 1.1 compliant.
  • Page 16 8555 N/B Maintenance Signal Name Direction Description Power USB Device Power (+5VDC) DATA- Balanced Data Negative DATA+ Balanced Data Positive Power Ground • PS/2 Ports - Support Mouse and Keyboard via a Y-Type cable. • Parallel Ports - Configurable as logical ports LPT1 , LPT2 or LPT3 - EPP rev 1.7 &...
  • Page 17 8555 N/B Maintenance Signal Name Direction Description STROBE# Data Strobe PP Data bit 0 PP Data bit 1 PP Data bit 2 PP Data bit 3 PP Data bit 4 PP Data bit 5 PP Data bit 6 PP Data bit 7...

  • Page 18: Pc Card Slot

    8555 N/B Maintenance 1.3.2.5 PC CARD SLOT • One Type II/I slot supporting the 1997 PC Card standard,and including full R2 (16-bit) and 32-bit Cardbus data transfer • ENE CB710 (PCMCIA Controller) & ENE CP2211 (Power Switch) • Ability to wake-up from D3-Hot and D3-Cold.

  • Page 19: Ide Interface

    8555 N/B Maintenance • Internal LCD Display is 15.1”/14.1” TFT ISP XGA/SXGA+ color • Dual View of LCD+CRT / LCD+TV independent display. • External Video refresh rate of up to 100Hz supported - Vertical refresh frequencies to meet VESA requirements - Simultaneous video in specified video modes –...

  • Page 20: Power Management Features

    8555 N/B Maintenance 1.3.2.10 POWER MANAGEMENT FEATURES • Local standby mode (Individual devices such as HDD, graphics controller, LCD etc..) • CPU Idle mode (Including ACPI modes C1 and C2) • Suspend mode (Including S1 and S3 ACPI modes) • Fully APM V1.2 compliant •...
  • Page 21 8555 N/B Maintenance 1.3.2.13 LEDs INDIACTOR • CDROM & HDD & NUM & CAP & SCROLL & Wireless Indicator 1.3.2.14 BUTTONs • One MPM Button w/z Blue LED...

  • Page 22: Touch Pad Module

    8555 N/B Maintenance 1.3.2.15 TOUCH PAD MODULE • Synaptics TM41PU-311 with two Buttons 1.3.2.16 MODEM (MDC) - Option SIGNAL NAME SIGNAL NAME MONO_OUT MODEM_SPK Pull Up to +3V ACSYNC ACSDOUT MSDIN -ACRST MSDIN ACBITCLK 1.3.2.17 Card Reader(8555) • Support Smart-Media, SD , Memory Stick , MultiMediaCard...
  • Page 23 8555 N/B Maintenance Type Memory Stick SmartMedia MultiMediaCard SD memory card Picture Size 21.5x50x2.8 37x45x0.76 24x32x1.4 24x32x2.1 Weight (g) Volume 3,010 1,265 1,075 1,612 Developer Sony Corp.('98) TOSHIBA Corp.('95) Siemens AG. Matsushita Electronic SanDisk Corp. ('97) Industrial CO., Ltd. TOSHIBA Corp.

  • Page 24: Electrical Characteristic

    8555 N/B Maintenance 1.4 Electrical Characteristic 1.4.1 SiS963 GPI/O Pin Define...
  • Page 25 8555 N/B Maintenance 1.4.2 Keyboard Controller Pin Define Port Signal Name Type Description Port Signal Name Type Description 79~72 P10~P17 KO[0..7] Keyboard Matrix Indicated the battery capacity is not enough 67~60 P20~P27 KO[8..15] Keyboard Matrix BATT_DEAD# to power on system...
  • Page 26 8555 N/B Maintenance Port Signal Name Type Description H8_SISPWRBTN# Button to SiS962 SW_+5VA To switch +5V/+5VA power source TO SiS962,REGUSTANG THE SYSTEM H8_THRM# TOENTER POWER MANGMENT MODE,Clock Throttling. POWERBTN# System power button Cover switch,Logic Low means LCD Cover LID# Closed.
  • Page 27 8555 N/B Maintenance 1.4.3 Power Consumption Of Suspend Mode • Suspend To RAM < 100mA • Suspend To Disk / Soft-Off /Mechanical Off < 1mA 1.4.4 Clock Harmonic List...
  • Page 28 8555 N/B Maintenance 14.318M 24.576M 100M 12.288M 32.768K 12MHz 12.288MHz 14.318MHz 16MHz 24MHz 24.576MHz 25MHz 32.768KHz 33MHz 48MHz 65MHz 66MHz 100MHz 24MHz 24.576MHz 28.636MHz 32MHz 48MHz 49.152MHz 50MHz 65.536KHz 66MHz 96MHz 130MHz 132MHz 200MHz 36MHz 36.864MHz 42.954MHz 48MHz 72MHz 73.728MHz 75MHz 98.304KHz 99MHz 144MHz 195MHz 198MHz 300MHz...

  • Page 29: Audio Performance

    8555 N/B Maintenance 1.4.5 Audio Performance Digital Playback (PC-D-A) for Line Output Test Items Mobile System ≧ 0.7Vrms (3.3V audio) Full Scale Output Voltage ≦ 0.1% Sample Frequency Accuracy 20Hz 〜 15kHz Frequency Response (44.1ks/sec) 20Hz 〜 15kHz Frequency Response (48ks/sec) ≧...

  • Page 30: Appendix

    8555 N/B Maintenance Digital Recording (A-D-PC) for Microphone Input Test Items Mobile System ≧100mVrms Full Scale Input Voltage ≦0.1% Sample Frequency Accuracy Frequency Response(22.05ks/sec) 100Hz〜8.8kHz ≧60dBFSA Dynamic Range (SNR) ≦-50dBFS THD+N 1.5 APPENDIX APPENDIX A WILLAMETTE CPU CORE FREQUENCY SELECTION...
  • Page 31 8555 N/B Maintenance APPENDIX B VOLTAGE IDENTIFICATION DEFINITION...
  • Page 32 8555 N/B Maintenance...
  • Page 33 8555 N/B Maintenance APPENDIX C FREQUENCY TABLE FOR BCLK[1:0] BSEL1 BSEL0 Function 100MHz 133MHz 200MHz • LCD CABLE REQUIREMENT - Each differential pair need meet maximum impedance 100Ω - DC impedance have to meet maximum impedance 5mΩ in each line...
  • Page 34 8555 N/B Maintenance QDI QD141X1LH12 Cable pin define for one channel type Signal name M/B pin Number LCD module pin number LCDVCC LCDVCC TX2CLK+ TXCLK+ TX2CLK- TXCLK- TX2OUT0+ TX2OUT1+ TX2OUT0- TX2OUT1- TX2OUT2+ TXOUT0+ TX2OUT2- TXOUT0- TXOUT2+ TXOUT1+ TXOUT2- TXOUT1- Link...
  • Page 35 8555 N/B Maintenance QDI QD141X1LH12 Cable pin define for one channel type Signal name M /B pin Number LCD module pin number LCD_ID0 +3VS LCD_ID0 +3VS G ND G ND Note : DISPLAY Link Pin QDI141X1LH12 31&32 Short AU B141XN04-2 Cable pin define for one channel type...
  • Page 36 8555 N/B Maintenance Signal name M/B pin Number LCD module pin number TX2OUT2+ TXOUT0+ TX2OUT2- TXOUT0- TXOUT2+ TXOUT1+ TXOUT2- TXOUT1- LCD_ID0 +3VS Link LCD_ID1 +3VS LCD_ID0 +3VS LCD_ID0 +3VS Note : DISPLAY Link Pin B141XN04-2 33& 34 Short...
  • Page 37 8555 N/B Maintenance CHI MEI N141X6-L01 Cable pin define for one channel type Signal name M/B pin Number LCD module pin number LCDVCC LCDVCC TX2CLK+ TXCLK+ TX2CLK- TXCLK- TX2OUT0+ TX2OUT1+ TX2OUT0- TX2OUT1- TX2OUT2+ TXOUT0+ TX2OUT2- TXOUT0- TXOUT2+ TXOUT1+ TXOUT2- TXOUT1-...
  • Page 38 8555 N/B Maintenance Signal name M/B pin Number LCD module pin number LCD_ID1 Link +3VS LCD_ID0 +3VS LCD_ID0 +3VS Note : DISPLAY Link Pin N141X6-L01 31&32,33&34 Short HANNSTAR HSD150P-B LCD Cable pin define for one channel type Signal name M/B pin Number...
  • Page 39 8555 N/B Maintenance Signal name M/B pin Number LCD module pin number TX2OUT2+ TXOUT0+ TX2OUT2- TXOUT0- TXOUT2+ TXOUT1+ TXOUT2- TXOUT1- LCD_ID0 +3VS LCD_ID1 +3VS Link LCD_ID0 +3VS LCD_ID0 +3VS Note : DISPLA Y Link Pin HSD150PX11-B 35&36 Short...
  • Page 40 8555 N/B Maintenance HYUNDAI HT15X31-100 LCD Cable pin define for one channel type Signal name M/B pin Number LCD module pin number LCDVCC LCDVCC TX2CLK+ TXCLK+ TX2CLK- TXCLK- TX2OUT0+ TX2OUT1+ TX2OUT0- TX2OUT1- TX2OUT2+ TXOUT0+ TX2OUT2- TXOUT0- TXOUT2+ TXOUT1+ TXOUT2- TXOUT1-...
  • Page 41 8555 N/B Maintenance HYUNDAI HT15X31-100 LCD Cable pin define for one channel type Signal name M/B pin Number LCD module pin number LCD_ID1 +3VS Link LCD_ID0 +3VS LCD_ID0 +3VS Note : DISPLAY Link Pin HT15X31-100 31&32,35&36 Short AU B150PG01 LCD Cable pin define for two channel type...
  • Page 42 8555 N/B Maintenance Signal name M/B pin Number LCD module pin number TX2OUT0- TX2OUT1- TX2OUT2+ TXOUT0+ TX2OUT2- TXOUT0- TXOUT2+ TXOUT1+ TXOUT2- TXOUT1- LCD_ID0 +3VS Link LCD_ID1 +3VS LCD_ID0 Link +3VS LCD_ID0 +3VS Note : DISPLAY Link Pin B150PG01 33&34,35&36 Short...

  • Page 43: System View & Disassembly

    8555 N/B Maintenance 2. System View and Disassembly 2.1 System View 2.1.1 Front View Hold Switch Volume Control Œ •Ž•• ‘ Audio Output Microphone Input 1394 port Card Reader Slot IR Module Top Cover Latch 2.1.2 Left-side View PCMCIA Card Socket...

  • Page 44: Right-Side View

    8555 N/B Maintenance 2.1.3 Right-side View Kensington Lock Ventilation Openings Battery pack Œ • Ž 2.1.4 Rear View USB Port*2 VGA Port S-Video Output Connector Parallel Port Power Connector Œ • Ž • •...

  • Page 45: Bottom View

    8555 N/B Maintenance 2.1.5 Bottom View Œ CPU Cover Hard Disk Drive Cover • 2.1.6 Top View ‘ Stereo Speaker • Touch Pad Power Button Œ Keyboard Device Indicators LCD Screen Œ • Ž •...

  • Page 46: System Disassembly

    8555 N/B Maintenance 2.2 System Disassembly The section discusses at length each major component for disassembly/reassembly and show corresponding illustrations. Use the chart below to determine the disassembly sequence for removing components from the notebook. NOTE: 1. Before you start to install/replace these modules, disconnect all peripheral devices and make sure the notebook is not turned on or connected to AC power.

  • Page 47: Battery Pack

    8555 N/B Maintenance 2.2.1 Battery Pack Disassembly 1. Carefully put the notebook upside down. 2. Slide and keep the upper release lever on “unlock” ( ) position (Œ), and then pull the battery pack out of the compartment (•) while sliding the lower release lever downwards to “unlock” ( ) position (•).
  • Page 48 8555 N/B Maintenance 2.2.2 Keyboard Disassembly 1. Remove the battery pack. (See section 2.2.1 Disassembly) 2. Remove three screws that fastening the keyboard cover on the bottom of the notebook. (Figure 2-2) Figure 2-2 Remove three screws Figure 2-3 Slide out the keyboard cover...
  • Page 49 8555 N/B Maintenance 4. Remove two screws fastening the keyboard. (Figure 2-4) 5. Disconnect the cable from system board. (Figure 2-5) Figure 2-5 Disconnect the cable Figure 2-4 Remove two screws Reassembly 1. Reconnect the keyboard cable. 2. Replace the keyboard and secure with two screws.
  • Page 50 8555 N/B Maintenance 2.2.3 CPU Disassembly 1. Carefully put the notebook upside down. 2. Remove the battery pack. (See section 2.2.1 Disassembly) 3. Remove four screws that fasten the heatsink compartment covers. (Figure 2-6) Figure 2-6 Remove four screws Figure 2-7 Remove the heatsink compartment cover 4.
  • Page 51 8555 N/B Maintenance 5. Disconnect the fan’s power cord to detach the heatsink from the CPU compartment. (Figure 2-8) 6. To remove the existing CPU, lift the socket arm up to the vertical position. (Figure 2-9) Figure 2-8 Disconnect the fan’s cord...

  • Page 52: Hdd Module

    8555 N/B Maintenance 2.2.4 HDD Module Disassembly 1. Carefully put the notebook upside down. 2. Remove the battery pack. (See section 2.2.1 Disassembly) 3. Remove one screw fastening the HDD compartment cover. Then sliding it outward. (Figure 2-10) Figure 2-10 Remove HDD compartment cover...
  • Page 53 8555 N/B Maintenance 5. Unscrew two screws to slide out the hard disk drive from the compartment. (Figure 2-12) Figure 2-12 slide out the hard disk drive Figure 2-13 Free the hard disk 6. To free the hard disk drive, remove two screws that secure the holding. (Figure 2-13) Reassembly 1.

  • Page 54: Cd/Dvd-Rom Drive

    8555 N/B Maintenance 2.2.5 CD/DVD-ROM Drive Disassembly Disassembly 1. Carefully put the notebook upside down. Remove the battery pack. (Refer to section 2.2.1 Disassembly) 2. Remove three screws fastening the CD/DVD-ROM drive. (Figure 2-12) 3. Insert a small rod, such as a straightened paper clip, into CD/DVD-ROM drive’s manual eject hole (Œ) and push firmly to release the tray.
  • Page 55 8555 N/B Maintenance 2.2.6 SO-DIMM Disassembly 1. Carefully put the notebook upside down. And remove the battery pack and the keyboard. (See sections 2.2.1and 2.2.2 disassembly) 2. Pull the retaining clips outwards (Œ) and remove the SO-DIMM (•). (Figure 2-15)

  • Page 56: Lcd Assembly

    8555 N/B Maintenance 2.2.7 LCD Assembly Disassembly 1. Carefully put the notebook upside down. And remove the battery pack and the keyboard. (See sections 2.2.1and 2.2.2 disassembly) 2. Remove two screws on the rear side of notebook. (Figure 2-16) 3. Open the top cover. Rip the insulating tape off to free the antenna. (Figure 2-17)
  • Page 57 8555 N/B Maintenance 6. Then remove the two hinge covers. (Figure 2-18) 7. Remove two screws of the hinges. And disconnect the two LCD wires from the system board. (Figure 2-19) Figure 2-18 Remove the hinge cover Figure 2-19 Disconnect the two LCD wires...
  • Page 58 8555 N/B Maintenance 8. Carefully put the notebook upside down, remove two screws of the hinges. Now you can separate the LCD assembly from the base unit. (Figure 2-20) Figure 2-20 Remove the LCD assembly Reassembly 1. Attach the LCD assembly to the base unit and secure with four screws of the hinges.

  • Page 59: Inverter Board

    8555 N/B Maintenance 2.2.8 Inverter Board Disassembly 1. Carefully put the notebook upside down. And remove the battery pack and the keyboard. (See sections 2.2.1and 2.2.2 disassembly) 2. Remove the LCD Assembly. (See section 2.2.7 Disassembly) 3. Remove the four rubber pads and four screws. (figure 2-21) 4.
  • Page 60 8555 N/B Maintenance Reassembly 1. Fit the inverter board back into place and secure with two screws, and reconnect the wire to the inverter board. 2. Fit the LCD top cover back into the housing and secure with four screws and four rubber pads 3.

  • Page 61: Lcd Panel

    8555 N/B Maintenance 2.2.9 LCD Panel Disassembly 1. Carefully put the notebook upside down. 2. Remove the battery pack. (See section 2.2.1 Disassembly) 3. Remove the LCD Assembly. (See section 2.2.7 Disassembly) 4. Disconnect one wire from inverter board and remove two screws fastening the inverter board.
  • Page 62 8555 N/B Maintenance Reassembly 1. Attach the LCD panel holding to panel and secure with eight screws. 2. Fit the LCD panel into place and secure with eight screws. 3. Replace the inverter board. (See section 2.2.8 Reassembly) 4. Replace the LCD assembly. (See section 2.2.7 Reassembly)

  • Page 63: System Board

    8555 N/B Maintenance 2.2.10 System Board Disassembly 1. Carefully put the notebook upside down. 2. Remove the battery pack. (See section 2.2.1 Disassembly) 3. Remove the keyboard, CPU, hard disk drive, CD/DVD-ROM drive, DDR-SDRAM and LCD Assembly. (See the previous sections Disassembly) 4.
  • Page 64 8555 N/B Maintenance 6. Disconnect the touch pad’s cable. Then lift up the system top cover. (Figure 2-27) Figure 2-27 Remove the top cover Figure 2-28 Unscrew two screws and disconnect one cord 7. Unscrew two screws and disconnect fan’s cord. (Figure 2-28)
  • Page 65 8555 N/B Maintenance 8. Remove four hex nuts beside the VGA ports. Now you can lift up system board from housing. (Figure 2-29) Figure 2-29 Remove four hex nuts Reassembly 1. Fit the system board back into housing and secure with two screws and four hex nuts.

  • Page 66: Modem Card

    8555 N/B Maintenance 2.2.11 Modem Card Disassembly 1. Carefully put the notebook upside down. 2. Remove the battery pack. (See section 2.2.1 Disassembly) 3. Remove the keyboard, CPU, hard disk drive, CD/DVD-ROM drive, DDR-SDRAM and LCD Assembly. (See the previous sections Disassembly) 4.

  • Page 67: Touch Pad

    8555 N/B Maintenance 2.2.12 Touch Pad Disassembly 1. Carefully put the notebook upside down. 2. Remove the battery pack. (See section 2.2.1 Disassembly) 3. Remove the keyboard, CPU, hard disk drive, CD/DVD-ROM drive, DDR-SDRAM and LCD Assembly. (See the previous sections Disassembly) 4.
  • Page 68 8555 N/B Maintenance Reassembly 1. Fit the touch pad panel and click holder 2. Then fit the touch pad bracket and secure with two screws. 3. Reassemble the notebook. (See the previous sections Reassembly)

  • Page 69: Definition & Location Of Connectors / Switches Setting

    8555 N/B Maintenance 3. Definition & Location of Connectors / Switches 3.1 Mother Board-A J501 : S-Video Connector PJ501 PJ502 J502 : VGA Connector PJ503 J511 J503 : Parallel Port J503 J504 : USB2.0 Connector J505 : USB2.0 Connector J506 : USB2.0 Connector J512 J507 : USB2.0 Connector...
  • Page 70 8555 N/B Maintenance 3. Definition & Location of Connectors / Switches 3.2 Mother Board-B J1 : CPU FAN Connector J2 : LCD Connector J3 : Invert Board Connector J4 : MDC Jump wire Connetor J5 : Left Speak Connector J6 : DDR Memory Connector...
  • Page 71 8555 N/B Maintenance 3. Definition & Location of Connectors / Switches 3.2 Mother Board-B J15 : Mini 1394 Connector J16 : Line Out J20 : Right Speak Connector J29 : K/B Connector VR1 : Volume Control SW1 : Power Button...
  • Page 72 8555 N/B Maintenance 3. Definition & Location of Connectors / Switches 3.3 Charge Board PJ1 : M/B Connector...

  • Page 73: Definition & Location Of Major Component

    8555 N/B Maintenance 4. Definition & Location of Major Components 4.1 Mother Board-A U506 : SiS648FX North Bridge U508 : CPU Socket U510 : HY5DU2832222F Video Memory U508 U512 : HY5DU2832222F Video Memory U513 : HY5DU2832222F Video Memory U514 : HY5DU2832222F Video Memory...
  • Page 74 8555 N/B Maintenance 4. Definition & Location of Major Components 4.2 Mother Board-B U6 : ATI M9+X Video Controller U7 : ICS952011 Clock Generator U8 : 28F020-PLCC BIOS U9 : SiS963 South Bridge U10 : H8/3437S U15 : FIR U16 : ICS1893AF...
  • Page 75 8555 N/B Maintenance 4. Definition & Location of Major Components 4.3 Charge Board PU502 PU503 PU501 PU501 : FDS77664A PU502 : Max1772 PU503 : SI4410DY...

  • Page 76: Pin Description Of Major Component

    8555 N/B Maintenance 5. Pin Descriptions of Major Components 5.1 Mobile Prescott Northwood 533MHZ Name Type Description Name Type Description Input/ AP[1:0]# (Address Parity) are driven by the request initiator along AP[1:0]# A[35:3]# Input/ A[35:3]# (Address) define a 2 -byte physical memory address Output with ADS#,A[35:3]#, and the transaction type on the REQ[4:0]#.
  • Page 77 8555 N/B Maintenance 5.1 Mobile Prescott Northwood 533MHZ Name Type Description Name Type Description BPM[5:0]# Input/ BPM[5:0]# (Breakpoint Monitor) are breakpoint and performance D[63:0]# (Data) are the data signals. These signals provide a 64-bit Output monitor signals. They are outputs from the processor which indicate data path between the processor system bus agents, and must connect the appropriate pins on all such agents.
  • Page 78 8555 N/B Maintenance 5.1 Mobile Prescott Northwood 533MHZ Name Type Description Name Type Description HIT# Input/ HIT# (Snoop Hit) and HITM# (Hit Modified) convey DBSY# Input/ DBSY# (Data Bus Busy) is asserted by the agent responsible for Output transaction snoop operation results. Any system bus agent may...
  • Page 79 8555 N/B Maintenance 5.1 Mobile Prescott Northwood 533MHZ Name Type Description Name Type Description PWRGOOD Input PWRGOOD (Power Good) is a processor input. The processor LINT[1:0] Input LINT[1:0] (Local APIC Interrupt) must connect the appropriate requires this signal to be a clean indication that the clocks and pins of all APIC Bus agents.
  • Page 80 8555 N/B Maintenance 5.1 Mobile Prescott Northwood 533MHZ Name Type Description Name Type Description REQ[4:0]# Input/ REQ[4:0]# (Request Command) must connect the appropriate Input TDI (Test Data In) transfers serial test data into the processor. Output pins of all processor system bus agents. They are asserted by the TDI provides the serial input needed for JTAG specification current bus owner to define the currently active transaction type.
  • Page 81 8555 N/B Maintenance 5.1 Mobile Prescott Northwood 533MHZ Name Type Description Input provides isolated power for internal processor system CCIOPLL CCIOPLL bus PLLs. Follow he guidelines for V , and refer to the Intel® Pentium® 4 Processor in the 478-pin Package and Intel ® 850 Chipset Platform Design Guide for complete implementation details.

  • Page 82: Sis M661/648Fx North Bridge

    8555 N/B Maintenance 5.2 SiS M661/648FX North Bridge Host Bus Interface(1) Host Bus Interface(2) Pin Name Pin Attr Description Pin Name Pin Attr Description CPUCLK Host differential clock input. HIT# Keeping a Non-Modified Cache Line 0.71V – M CPUCLK# 0.9~1.75V –...
  • Page 83 8555 N/B Maintenance 5.2 SiS M661/648FX North Bridge Host Bus Interface(3) DRAM Controller(2) Pin Name Pin Attr Description Pin Name Pin Attr Description HDSTBN[3:0]# Source synchronous data strobe used to latch data at falling edge S3AUXSW# Aux power switch for ACPI-S3 state, low active.
  • Page 84 8555 N/B Maintenance 5.2 SiS M661/648FX North Bridge AGP Interface AGP Interface(2) Pin Name Pin Attr Description Pin Name Pin Attr Description AGPCLK AGP Clock AREQ# AGP Bus Request 3.3V – M 1.5V - M AFRAME# AGP Frame# AGNT# AGP Bus Grant 1.5V - M...
  • Page 85 8555 N/B Maintenance 5.2 SiS M661/648FX North Bridge Test Mode / Hardware Trap / Power Management Pin Name Pin Attr Description DLLEN# Hardware Trap pin (refer to section 5) 3.3V/5V – TRAP[1:0] Hardware Trap pins (refer to section 5) 3.3V/5V –...

  • Page 86: Sis963 South Bridge

    8555 N/B Maintenance 5.3 SiS963 South Bridge Host Bus Interface MuTIOL 1G Connect Interface Name Pin Attr Description Name Pin Attr Description FERR# Floating Point Error: ZCLK MuTIOL 1G I/O Connect Clock 0.8V/2.65V CPU will assert this signal upon a floating point error occurring.
  • Page 87 8555 N/B Maintenance 5.3 SiS963 South Bridge PCI Interface(2) PCI Interface(3) Name Pin Attr Description Name Pin Attr Description IRDY# Initiator Ready: PGNT[4:0]# PCI Bus Grant: 3.3V –M 3.3V/5V IRDY# is an output when the SiS963 is a PCI bus master. The...
  • Page 88 8555 N/B Maintenance 5.3 SiS963 South Bridge IDE Interface(2) Power Management Interface(2) Name Pin Attr Description Name Pin Attr Description IDECSB[1:0]# Secondary Channel CS[1:0] PSON# ATX Power ON/OFF control: 3.3V -M <=5V PSON# is used to control the on/off state of the ATX power supply.
  • Page 89 8555 N/B Maintenance 5.3 SiS963 South Bridge Power Management Interface(3) Keyboard Controller Interface Name Pin Attr Description Name Pin Attr Description DPRSLPVR Deeper Sleep (for Mobile only): KBDAT I/OD Keyboard Dada: (GPIO13) 3.3V/5V Used to lower the voltage of VRM during CPU entered the deeper (GPIO15) 3.3V/5V...
  • Page 90 8555 N/B Maintenance 5.3 SiS963 South Bridge RTC Interface General Purpose I/O Name Pin Attr Description Name Pin Attr Description BATOK Battery Power OK: GPIO[6:0] GPIO: 3.3V -RTC When the internal RTC is enabled, this signal is used to indicate that 3.3V/5V...
  • Page 91 8555 N/B Maintenance 5.3 SiS963 South Bridge MAC Interface(1) MAC Interface(2) Name Pin Attr Description Name Pin Attr Description RXER RX Packet Error: Collision Detect: 3.3V/5V This event is signaled after the last received descriptor in a failed 3.3V/5V This signal is asserted high asynchronous by the external physical -AUX packet reception that has been updated with valid status.
  • Page 92 8555 N/B Maintenance 5.3 SiS963 South Bridge USB Interface Name Pin Attr Description OSC12MHI UTMI 12MHz Clock Input: 3.3V/5V This pin provides the 12MHz clock signal input form external crystal -AUX or oscillator. OSC12MHO UTMI 12Mhz Clock Output: 3.3V/5V This pin should be connected with the other end of the 12Mhz crystal...

  • Page 93: System Block Diagram

    8555 N/B Maintenance 6. System Block Diagram U508 Northwood/Pentium 4-M 533MHz Memory Stick MMC,SM,SD,Card 800MHz J6,J7 U518 Socket ATI M10P/M9+X VGA Controller Interface PC Card U506 Interface DDR SDRAM TFT LCD PC Card Controller Slot*2 SiS M661/648FX Socket U505 North Bridge...

  • Page 94: Maintenance Diagnostics

    8555 N/B Maintenance 7. Maintenance Diagnostics 7.1 Introduction Each time the computer is turned on, the system BIOS runs a series of internal checks on the hardware. This power- on self test (post) allows the computer to detect problems as early as the power-on stage. Error messages of post can alert you to the problems of your computer.If an error is detected during these tests, you will see an error message...
  • Page 95 8555 N/B Maintenance 7. Maintenance Diagnostics 7.1.1 Diagnostic Tool for Mini PCI Slot : The Mini PCI DOGkiller card is a single-step debug tool which utilizes Mini PCI interface (Type III A) and is able to hold a PCI bus cycle so that address, data and control bus states on PCI bus can be inspected. Especially, the tool can help an engineer trace address/data bus for BIOS read cycles as soon as power on and debug open or short circuit problems easily.

  • Page 96: Error Codes

    8555 N/B Maintenance 7.2 Error Codes - 1 Following is a list of error codes in sequent display on the debug board. POST (HEX) DESCRIPTION POST (HEX) DESCRIPTION Some Type Of Long Reset RAM Quick Sizing Turn off FASTA20 for POST...
  • Page 97 8555 N/B Maintenance 7.2 Error Codes - 2 Following is a list of error codes in sequent display on the debug board. POST (HEX) DESCRIPTION Update NUMLOCK status special init of COMM and LPT ports Configure the COMM and LPT ports...

  • Page 98: Trouble Shooting

    8555 N/B Maintenance 8. Trouble Shooting 8.1 No Power 8.8 Hard Disk Drive Test Error 8.2 Battery Can not Be Charged 8.9 CD-ROM Drive Test Error 8.3 No Display 8.10 USB Port Test Error 8.4 LCD No Display or Picture Abnormal 8.11 PC Card Socket Test Error...
  • Page 99 8555 N/B Maintenance 8.1 No Power When the power button is pressed, nothing happens ,power indicator does not light up. PL1, PF1 PU8,PQ21,PL511 PL2 ,PD2 PU10 ALWAYS +5VA +3VA Power In PQ501 PQ19 Main Voltage Map +5VAS ADINP H8-VDD5 Charge...
  • Page 100 8555 N/B Maintenance 8.1 No Power When the power button is pressed, nothing happens ,power indicator does not light up. SI4835DY PJ501 ADINP_1 RLZ24D Power In ADINP PR503 0.06 PC17 ADINP_2 0.1U 0.1U PR504 SI4835DY 470K PD503 0.06 DVMAIN PD502 0.06...
  • Page 101 8555 N/B Maintenance 8.1 No Power– No CPU Core When the power button is pressed, nothing happens ,power indicator does not light up.And no CPU core. DVMAIN PC51 PR550 PR46 PR528 80.8K PR543,546,538,547,539,42 CPU_VID[0:5] 1,2,3,4,5,6 To CPU P4 PWM1 To P33...
  • Page 102 8555 N/B Maintenance 8.1 No Power– No CPU Core When the power button is pressed, nothing happens ,power indicator does not light up.And no CPU core. +5VS D/VMAIN_P3 PR20 PR508 PC525 ISL6207 PQ504 0.1U FDD6035AL PR23 BOOT PL503 PR14 UGATE 0.5UH...
  • Page 103 8555 N/B Maintenance 8.1 No Power When the power button is pressed, nothing happens ,power indicator does not light up. No power Check following parts and signals: Connect Is the PARTS: SIGNAL: AC adaptor Notebook connected or battery to power (Either AC adaptor...

  • Page 104: Battery Can Not Be Charged

    8555 N/B Maintenance 8.2 Battery Can not Be Charged Symptom: When the battery is installed but the battery status indicate LED display abnormal. ADINP PC515 0.1U PL501 120Z/100M PR509 I_LIMIT PR511 EC31QS04 EC31QS04 PR510 19.6K PL502 120Z/100M ADINP_2 PC516 0.1U...
  • Page 105 8555 N/B Maintenance 8.2 Battery Can not Be Charged Symptom: When the battery is installed but the battery status indicate LED display abnormal. +5VAS PR48 100K PR49 750K BATT_DEAD PR57 PU9A 100K LMV393M PR53 PU505 +5VAS Q518 DBATT FDS6679 +5VAS...
  • Page 106 8555 N/B Maintenance 8.2 Battery Can not Be Charged Symptom: When the battery is installed but the battery status indicate LED display abnormal. Battery can not Charge Board- Board level level Is the Troubleshooting Troubleshooting Notebook connected Connect to power (AC adaptor)? AC adaptor.
  • Page 107 8555 N/B Maintenance 8.3 No Display (System Failure) ******System Clock Check****** U508 R206 HCLK_CPU U523 R228 PCICLK_CARD HCLK_CPU# R207 Card Bus R227 CLK_LPC33 R204 HCLK_SiS648FX U519 R212 CLK_SIO U506 HCLK_SiS648FX# R205 Super I/O R208 AGPCLK North CLK_MINIPCI R222 R224 ZCLK0...
  • Page 108 8555 N/B Maintenance 8.3 No Display (System Failure) ******System Clock Check****** R[636:639],R643,644,R661,R664,R651,652,R657,658 To P11 CLK_DDR[0:5],CLK_DDR[0:]# ASMBCLK ASMBDATA FWDSDCLKO R135 U506 C173 North Bridge VDD_MEM2.5 U516 120Z/100M CBVDDA C257 C257 C257 C257 ICS93722 JL26 Bit2 Bit7 Bit6 Bit5 Bit4 Clock R660...

  • Page 109: North Bridge

    8555 N/B Maintenance 8.3 No Display (System Failure) ******Reset Circuit Checking****** RLS4148 R727 U506 H8_PWROK PWROK AUXOK PWRSW# R286 U508 North Bridge CPURST# C833 0.1U CPUPWRGD U519 SIO_RST# NBRST# R293 Super I/O U505 PCIRST# TV/LVDS South Bridge +3VS +5VS AC97_RST#...
  • Page 110 8555 N/B Maintenance 8.3 No Display (System Failure) No Display Board-level Troubleshooting Monitor Replace or LCD module monitor or LCD. One of the following parts on the mother-board may be Make sure that CPU module, defective, use an oscilloscope to check the following signal or DIMM memory are installed replace the parts one at a time and test after each replacement.

  • Page 111: Vga Controller Failure Lcd No Display

    8555 N/B Maintenance 8.4 VGA Controller Failure LCD No Display Symptom: There is no display on LCD although power-on-self-test is passed. +3VS RP506 4.7K 4.7K LCD_ID0 TRAP1 U506 LCD_ID1 CSYNC LCD_ID2 SiS648FX LSYNC LCD_ID3 LCD_ID0 LCD_ID1 RP505 LCD_ID2 10K*4 LCD_ID3 TX2OUT0[+,-];TX2OUT1[+,-];TX2OUT2[+,-]...
  • Page 112 8555 N/B Maintenance 8.4 VGA Controller Failure LCD No Display Symptom: There is no display on LCD although power-on-self-test is passed. VGA Controller Failure 1. Confirm LCD panel or is good and check the cable are connected Board-level properly. Troubleshooting 2.

  • Page 113: External Monitor No Display

    8555 N/B Maintenance 8.5 External Monitor No Display Symptom: The CRT monitor shows nothing or abnormal color, but it is OK for LCD. R503 4.7K +3VS J502 +5VS R502 4.7K 120OHM/100MHz Q501 ACRT_DDCK R584 2N7002 Q502 ACRT_DDDA 2N7002 R560 +5VS...
  • Page 114 8555 N/B Maintenance 8.5 External Monitor No Display Symptom: The CRT monitor shows nothing or abnormal color, but it is OK for LCD. VGA Controller Failure 1. Confirm monitor is good and check the cable are connected properly. Board-level 2. Try another known good monitor.

  • Page 115: Memory Test Error

    8555 N/B Maintenance 8.6 Memory Test Error Symptom: Either on board or extend DDR RAM is failure or system hangs up. +1.5V_DDR DDR_CAS# DDR_RAS# DDR_CKE[0:2] RP[584:596] CAS# RAS# CKE[0:2] CS[0:2]# DDR_CS[0:2]# DDR_ WE# DDR_ BA[0:1] U506 33*8 WE# BA[0:1] MD [0:63]...
  • Page 116 8555 N/B Maintenance 8.6 Memory Test Error Symptom: Either on board or extend DDR RAM is failure or system hangs up. Memory Test Error 1.If your system installed with expansion DIMM module then check them for proper installation. One of the following components or signals on the 2.Make sure that your DIMM sockets are OK.

  • Page 117: Keyboard And Touch-Pad Test Error

    8555 N/B Maintenance 8.7 Keyboard (K/B) Touch-Pad (T/P) Test Error Symptom: Error message of keyboard or touch-pad failure is shown or any key does not work. KB_S KO [0:15] KI [0:7] KI 2 Wireless LAN LPC_LAD0 LPC_LAD1 DOWN LPC_LAD2 LEFT...
  • Page 118 8555 N/B Maintenance 8.7 Keyboard (K/B) Touch-Pad (T/P) Test Error Symptom: Error message of keyboard or touch-pad failure is shown or any key does not work. Keyboard or Touch-Pad Test Error Check J29, U516, J9 Re-soldering Is K/B or for cold Solder?
  • Page 119 8555 N/B Maintenance 8.8 Hard Disk Driver Test Error Symptom: Either an error message is shown, or the drive motor spins non-stop, while reading data from or writing data to hard-disk. J511 41,42 +5VS +5VS C789 C792 C790 +3VS 4.7U 0.1U...

  • Page 120: Hard Drive Test Error

    8555 N/B Maintenance 8.8 Hard Disk Driver Test Error Symptom: Either an error message is shown, or the drive motor spins non-stop, while reading data from or writing data to hard-disk. Hard Driver Test Error 1. Check if BIOS setup is OK?.

  • Page 121: Cd-Rom Drive Test Error

    8555 N/B Maintenance 8.9 CD-ROM Driver Test Error Symptom: An error message is shown when reading data from CD-ROM drive. J512 CDROMPWR 38,39,40,41,42 +5VS +5VS C786 C788 C787 +3VS 4.7U 0.1U 0.1U R229 R231 IDERST# CDROM_COMM,CDROM_LEFT,CDROM_RIGHT 1,2,3 PCI_RST# From P24...
  • Page 122 8555 N/B Maintenance 8.9 CD-ROM Driver Test Error Symptom: An error message is shown when reading data from CD-ROM drive. CD-ROM Driver Test Error 1. Try another known good compact disk. Board-level 2. Check install for correctly. Troubleshooting One of the following parts or signals on the motherboard may be defective, use an oscilloscope to check the signals or replace the parts one at a time and test after each replacement.
  • Page 123 8555 N/B Maintenance 8.10 USB2.0 Test Error (1) Symptom: An error occurs when a USB2.0 I/O device is installed. 120Z/100M +1.8V L551 USBPVDD 120Z/100M MINISMDC110 J504 120Z/100M C287 C288 0.01U 0.1U C505 JL18 USBPVSS 220U 560K C815 C813 0.01U 0.1U 1000P USB2.0...
  • Page 124 8555 N/B Maintenance 8.10 USB2.0 Test Error (2) Symptom: An error occurs when a USB I/O device is installed. 120Z/100M +1.8V L551 F503 USBPVDD 120Z/100M MINISMDC110 J506 L514 120Z/100M C287 C288 0.01U 0.1U C520 JL18 USBPVSS 220U 560K C815 C813 0.01U...

  • Page 125: Usb Port Test Error

    8555 N/B Maintenance 8.10 USB2.0 Test Error Symptom: An error occurs when a USB I/O device is installed. USB Test Error Check if the USB device is installed properly. (Including charge board.) Check the following parts for cold solder or one of the following...

  • Page 126: Pc-Card Socket Failure

    8555 N/B Maintenance 8.11 PC-Card Socket Failure Symptom : An error occurs when a PC card device is installed. J513 VCCA +3VS R750 +SDVDD CCLKRUN# PCI_AD [0:31] CAD [0:31] CCLK R787 PCI_C/BE# [0:3] CCBE# [0:3] 7,12,2161 PCI_REQ0# PCI_FRAME# CFRAME# PCI_IRDY#...
  • Page 127 8555 N/B Maintenance 8.11 PC-Card Socket Failure Symptom : An error occurs when a PC card device is installed. PC Card Test Error 1. Check if the PC CARD device is installed properly. Board-level Check the following parts for cold solder or one of the following 2.

  • Page 128: Sd-Card Reader Failure

    8555 N/B Maintenance 8.12 SD Card Reader Failure Symptom : An error occurs when a SD card device is installed. +SDVDD +SMVDD뗄 +3VS RP56 R741 RP57 RP54 RP53 47K*4 47K*4 47K*4 47K*4 +SDVDD SD_CD# PCI_AD [0:31] SD_WP# MS_INS# SD_CMD SD_DATA1...
  • Page 129 8555 N/B Maintenance 8.12 SD-Card Reader Failure Symptom : An error occurs when a SD card device is installed. SD Card Test Error 1. Check if the SD CARD device is installed properly. Board-level Check the following parts for cold solder or one of the following 2.

  • Page 130: Lan Test Error

    8555 N/B Maintenance 8.13 LAN Test Error Symptom: An error occurs when a LAN device is installed. L543 120Z/100M LAN_MRXD0 J508 LAN_MRXD1 R603 R601 49.9 LAN_MRXD2 49.9 PJTX+ L523 PJTX- LAN_MRXD3 90Z/100M TXD+ PJRX+ R718 LAN_MTXD0 PJRX- TXD- R719 LAN_MTXD1...
  • Page 131 8555 N/B Maintenance 8.13 LAN Test Error Symptom: An error occurs when a LAN device is installed. LAN Test Error 1.Check if the driver is installed properly 2.Check if the notebook connect with the Check the following parts for cold solder or one of the following...

  • Page 132: Audio Failure

    8555 N/B Maintenance 8.14 Audio Failure Symptom: No sound from speaker after audio driver is installed. +12VS Input Of Audio Subsystem AVDDAD OUT0 L557 120Z/100M OUT1 C363 C624 +3VS 0.1U MIC1 C869 C873 C874 ADP3301AR-5 Internal Microphone 0.1U 0.1U L556...
  • Page 133 8555 N/B Maintenance 8.14 Audio Failure Symptom: No sound from speaker after audio driver is installed. +5VS +5V_AMP +5VS_AMP U525 AMPLIFIER TPA0212 JO46 JO47 Output Of Audio Subsystem 600Z/100M ROUT+ 600Z/100M PVDD0 R Internal ROUT- Speaker PVDD1 C334 C340 C331...
  • Page 134 8555 N/B Maintenance 8.14 Audio Failure Symptom: No sound from speaker after audio driver is installed. Audio Drive Failure 1. Check if speaker cables are connected properly. 2. Make sure all the drivers are installed Board-level properly. Check the following parts for cold solder or one of the following parts on the...

  • Page 135: Mini Pci Test Error

    8555 N/B Maintenance 8.15 Mini PCI Test Error Symptom: An error message is shown after Mini PCI device is installed or the Mini PCI device does’t work. PCI_AD [0:31] PCI_C/BE# [0:3] PCI_REQ2# PCI_FRAME# PCI_IRDY# PCI_TRDY# PCI_DEVSEL# PCI_STOP# PCI_PERR# South- PCI_INTD#...
  • Page 136 8555 N/B Maintenance 8.15 Mini PCI Test Error Symptom: An error message is shown after Mini PCI device is installed or the Mini PCI device does’t work. Mini PCI Test Error 1.Check if the Mini PCI device is installed properly.

  • Page 137: Spare Parts List

    8555 N/B Maintenance 9. 8555 Spare Part List-1 Part Number Description Location(S) Part Number Description Location(S) 422675400021 AC ADPT ASSY;19V,7.9A,SPI,150W,S 272075103702 CAP;.01U ,50V,+80-20%,0603,Y5V,S PC507,PC508 361400003030 ADHESIVE;ABS+PC PACK,G485,CEMIDA 272105103402 CAP;.01U ,CR,25V ,10%,0402,X7R,S C103,C108,C127,C134,C135,C136,C138,C176,C181,C 361400003005 ADHESIVE;HEAT,T RANSFER,HT A-48(W) 272073223401 CAP;.022U,CR,25V ,10%,0603,X7R,S C7,C8 541667830035 AK;01-EN,BOX,3P PW CORD,8555...
  • Page 138 8555 N/B Maintenance 9. 8555 Spare Part List-2 Part Number Description Location(S) Part Number Description Location(S) 272043106403 CAP;10U,25V,+-10%,1812,X5R,SMT ,T 272075221401 CAP;220P ,CR,50V ,10%,0603,X7R,S PC531,PC540 272993106001 CAP;10U,25V,2.2mm,X5R,KYOCERA,SM PC511,PC512,PC513,PC517,PC518,PC519 272431227001 CAP;220U, 2.5V,T PE, 7343,18MR PC10,PC501,PC557,PC558,PC68,PC69 272023106002 CAP;10U,25V,M,1210,T2.8MM,X5R,SM PC126,PC16,PC572,PC70,PC73,PC79,PC90 272421225501 CAP;220U,TPE,4V,20%,7343,SMT PC543,PC546,PC549,PC552 272011106404 CAP;10U,6.3V,10%,1206,X7R,SMT...
  • Page 139 8555 N/B Maintenance 9. 8555 Spare Part List-3 Part Number Description Location(S) Part Number Description Location(S) 221600020252 CART ON;BATT ERY,CAIMAN,PWR 291000014409 CON;HDR,FM,22P*2,2.0MM,SMT,SPEED J511 221675420004 CART ON;W/AK BOX,N-B,8355 291000021104 CON;HDR,MA,11P*1,1.25,R/A,3811Y- 431678330001 CASE KIT;8555H ID1 291000021101 CON;HDR,MA,11P*1,1.25,R/A,DF13-1 335152000026 CFM-BAT;FUSE,THERMAL,NEC,SF91E 291000021103 CON;HDR,MA,11P,1.25MM,R/A,SMT,DF 273000500095 CHOCK COIL;0.5UH.1.0mOHM,25%,30A...
  • Page 140 8555 N/B Maintenance 9. 8555 Spare Part List-4 Part Number Description Location(S) Part Number Description Location(S) 441676230032 CONT ACT PLATE ASSY;FUSE,S-TUBE,B 291000612022 DIMM SOCKET;DDR NOR,200P,0.6MM,H 441676230031 CONT ACT PLATE ASSY;PTC,S-T UBE,BL 291000612014 DIMM SOCKET;DDR REVERSE,200P,0.6 441676230035 CONT ACT PLATE ASSY;W5L45T0.13,S- 291000612023 DIMM SOCKET;DDR RVS,200P,0.6MM,H...
  • Page 141 8555 N/B Maintenance 9. 8555 Spare Part List-5 Part Number Description Location(S) Part Number Description Location(S) 523467830004 DVD ASSY;KME,SR-8177-CPK2,8555 273000130006 FERRIT E CHIP;600OHM/100MHZ,.2A,1 523481614001 DVD-ROM DRIVE;SR-8177-CPK1 273000130038 FERRIT E CHIP;600OHM/100MHZ,1608, L1,L16,L18,L23,L25,L31,L48,L503,L53,L554,L555,L 272602227502 EC;220U ,16V,M,D6.3*7.7,-55+105' C505,C506,C520,C548 422675400001 FFC ASSY;T OUCH-PAD,8355 272601227507 EC;220U ,6.3V,M,D6.3*5.8,-55+105...
  • Page 142 8555 N/B Maintenance 9. 8555 Spare Part List-6 Part Number Description Location(S) Part Number Description Location(S) 344674300038 HOLDER;PCMCIA,TAI-SOL,P2P2601-22 283410310002 IC;FLASH,512K*8-90,PLCC32,W29C04 340678300013 HOUSING ASSY;HOUSING,8555 284500803002 IC;FW803,IEEE1394 PHY,LQFP64P,3P 340675400003 HOUSING ASSY;LCD 15",8355 286300690003 IC;G690E,RESET CIRCUIT,4.38V,SOT 451678300051 HOUSING KIT;8555 ID1 284583437003 IC;H8/F3437S,KBD CT RL,TQFP,100P, 344675400022 HOUSING;BATT ERY,8355...
  • Page 143 8555 N/B Maintenance 9. 8555 Spare Part List-7 Part Number Description Location(S) Part Number Description Location(S) 286300431014 IC;SC431LCSK-.5,.5%,ADJ REG,SOT2 PQ502,PQ509 346678300014 INSULATOR;T UNER,MB,8555 284500648004 IC;SIS648FX,N.B.,BGA 830P U506 531017240150 KBD;88,US,3000170351,ZIPPY,8555 284500963003 IC;SIS963,S.B.,BGA 371P 242600000145 LABEL;10*10,BLANK,COMMON 286100212001 IC;TPA0212,AMPLIFIER,TSSOP,24P,S U525 242600000145 LABEL;10*10,BLANK,COMMON 273000990012 INDUCT OR;10UH,CDRH127,SUMIDA,SMT...
  • Page 144 8555 N/B Maintenance 9. 8555 Spare Part List-8 Part Number Description Location(S) Part Number Description Location(S) 413000020396 LCD;QD15XL06,TFT,15.0",XGA,QDI 222600020049 PE BAG;50*70MM,W/SEAL,COMMON 294011200155 LED;BLUE,H0.8,SF0603-B70140-30,S D15,D16 222670820003 PE BAG;L560*W345,7521N 294011200069 LED;GREEN,19-21VGC/TR8,LED_CL190 LED1,LED2,LED3,LED4 222668820003 PE BUBBLE BAG;160X270MM,ANTI-STA 294011200034 LED;GREEN,H.8,0603,19-21VGC/TR,S 222678500002 PE BUBBLE BAG;BATT ERY,280*170,MS 294011200016 LED;GREEN,H0.8,0603,CL-190G,SMT...
  • Page 145 8555 N/B Maintenance 9. 8555 Spare Part List-9 Part Number Description Location(S) Part Number Description Location(S) 271071000002 RES;0 ,1/16W,5% ,0603,SMT L29,L49,L552,L571,PR532,R365 271071107311 RES;107K ,1/16W,1% ,0603,SMT PR90 271071000002 RES;0 ,1/16W,5% ,0603,SMT PR509,PR511,PR7 271002103301 RES;10K ,1/10W,5% ,0805,SMT PR10,PR11,PR568,PR570 271071000002 RES;0 ,1/16W,5% ,0603,SMT 271061103102 RES;10K ,1/16W,1% ,0402,SMT...
  • Page 146 8555 N/B Maintenance 9. 8555 Spare Part List-10 Part Number Description Location(S) Part Number Description Location(S) 271071105101 RES;1M ,1/16W,1% ,0603,SMT PR53 271061324211 RES;32.4K,1/16W,1% ,0402,SMT PR56 271061105501 RES;1M ,1/16W,5% ,0402,SMT PR28,PR562,PR563,PR66,PR75,PR92,R125,R296,R332,R363 271071324011 RES;324 ,1/16W,1% ,0603,SMT R616,R87 271071105301 RES;1M ,1/16W,5% ,0603,SMT R16,R39 271061330501 RES;33 ,1/16W,5% ,0402,SMT...
  • Page 147 8555 N/B Maintenance 9. 8555 Spare Part List-11 Part Number Description Location(S) Part Number Description Location(S) 271071471302 RES;470 ,1/16W,5% ,0603,SMT R3,R4,R5,R6,R7 271061681501 RES;680 ,1/16W,5% ,0402,SMT R160 271061474501 RES;470K ,1/16W,5% ,0402,SMT PR12,PR15,PR17,PR18,PR5,PR6,PR83,PR88,R272,R273,R4,R766 271071752101 RES;7.5K ,1/16W,1% ,0603,SMT PR556 271071474301 RES;470K ,1/16W,5% ,0603,SMT...
  • Page 148 8555 N/B Maintenance 9. 8555 Spare Part List-12 Part Number Description Location(S) Part Number Description Location(S) 271621822302 RP;8.2K*8,10P,1/32W,5% ,1206,SMT RP50,RP52 370102610401 SPC-SCREW;M2.6L4,K-HD,t0.8,NIB/N 345675400023 RUBBER;DOWN LCD,8355 370102630601 SPC-SCREW;M2.6L6,HDt0.5,NIWNLK 345675400044 RUBBER;KB,8355 370102630601 SPC-SCREW;M2.6L6,HDt0.5,NIWNLK 345675930001 RUBBER;LCD,UPPER,8677T 370102010205 SPC-SCREW;M2L2(t0.3),N/W/WLK 565167830001 S/W;CD ROM,SYST EM DRIVER,8555 370102010205 SPC-SCREW;M2L2(t0.3),N/W/WLK...
  • Page 149 8555 N/B Maintenance 9. 8555 Spare Part List-13 Part Number Description Location(S) Part Number Description Location(S) 225600000403 T APE;3M,1350F,W=10mm,YELLOW FOR PCB AND CELL 288202301001 T RANS;SI2301DS,P-MOSFET ,SOT-23 PQ19,PQ20,Q503,Q510,Q520,Q524,Q527 225600000310 T APE;ADHENSIVE,DOUBLE-FACE,W8,UL 288202302001 T RANS;SI2302DS,N-MOSFET,SOT-23 225600000054 T APE;INSULAT ING,POLYESTER FILM,1 288202303001 T RANS;SI2303DS,P-MOSFET ,SOT-23...
  • Page 150 8555 N/B Maintenance 9. 8555 Spare Part List-14 Part Number Description Location(S) 421678300013 WIRE ASSY;MDC,H-T ,8555 422676200004 WIRE; UL1007 #20 AWG, 41mm, RED; CN10 422676200002 WIRE; UL1007 #20 AWG, 45mm, BLUE 422676200006 WIRE; UL1007 #20 AWG, 84mm, BLAC 422676200001 WIRE; UL1007 #20 AWG, 90mm, BLUE 422676200008 WIRE;...

  • Page 155: Circuit Diagram

    ADINP ADINP ADINP_2 ADINP_2 ADINP_1 ADINP_1 I_LIMIT PR509 PC512 0402 PC515 PR510 0.1U 19.6K 0603 0603 0402 0402 EC31QS04-TE12L EC31QS04-TE12L DC2010 DC2010 PR511 PL501 120Z/100M 2012 0402 PR507 PL502 120Z/100M 2012 100K 0402 120Z/100M 120Z/100M 2012 2012 0805 0805 PC521 PC502 PR508 PC520...
  • Page 156 MODEL : 8555 Revision 0B Contexts POWER STATES IDSEL Title Page IDSEL CHIP STATE COVER SHEET & SCREW HOLE VOTAGE POWER ON MEC-OFF REMARK AD11 SiS 963 SIGNAL PCI to PCI System Block Diagram AD12 Bridge H8_SUSB HIGH Power Block Diagram...
  • Page 157 Prescott 8555 SYSTEM BLOCK DIAGRAM Mobile Prescott Northwood 533MHz Celeron 533MHz Pentium 4-M 533MHz Mobile Celeron 533MHz C P U uFCBGA 478 pin 200 Pin DDR SO-DIMM Socket*2 800Mz ATI M10P/M9+X interface VGA CONTROLLER DDR SDRAM PC2100/PC2700/PC3200 BGA 708 SiS M661/648FX...
  • Page 158 +1.8V +5V_AMP POWER BLOCK DIAGRAM OF THE 8555 5V DC to DC Convertor Regulator FAN5234 APL1117 +1.5VS +1.5V MAINPWR 5V DC to DC Convertor Regulator FAN5234 APL1117 CPU_CORE_EN +3VS PWR_ON Shut Down MOSFET 3.3V&5V +5VS Shut Down Self- DVMAIN DC to DC Convertor...
  • Page 159 Prescott/Northwood (1/2) 49.9 PLACE AT CPU END 0402 HD#[0..63] HD#[0..63] HCLK_CPU U508B HCLK_CPU# HD#31 HD#32 D#31 D#32 HA#[3..31] HD#30 HD#33 HA#[3..31] U508A D#30 D#33 HD#29 HD#34 49.9 D#29 D#34 HA#3 H_ADS# HD#28 HD#35 0402 ADS# H_ADS# D#28 D#35 HA#4 HD#27 HD#36 AP#0 D#27...
  • Page 160 Prescott/Northwood (2/2) +VCC_CORE VCCPVID U508D R504 AE24 0402 AE22 FOR D/T CPU VID AE19 AD14 +5VS R505 VIDPWRGD VIDPWRGD AD12 VCCPVID +5VS 0402 AD10 Q505 2N7002 R519 BOOTSELECT +VCC_CORE BOOTSELECT 34 AD23 0603 R511 150mA AD21 0402 AE17 U503 AE15 R523 Q506 AE13...
  • Page 161 +1.8VS R102 HD#[0..63] ZCMP_N U506A HD#[0..63] 4 HCLK_SIS648FX HD#0 AJ31 C163 120Z/100M C139 C138 0603 HCLK_SIS648FX CPUCLK HD0# HCLK_SIS648FX# AJ33 HD#1 2012 0.1U 0.01U HCLK_SIS648FX# CPUCLK# HD1# CPURST# HD#2 1206 0402 0402 CPURST# CPURST# HD2# CPUPWRGD HD#3 6.3V ZCMP_P CPUPWRGD CPUPWRGD HD3# HD#4...
  • Page 162 SIS M661/648FX (2/3) U506D SIS648FX BGA619_187_24_1MM +3VS L532 Z1XAVDD Z4XAVDD Z4XAVDD Z1XAVDD Z1XAVDD AGPVSSREF 120Z/100M C595 C596 C4XAVDD Z4XAVSS C572 2012 0.1U 0.01U AK35 C4XAVDD Z4XAVSS 0402 0402 C1XAVDD Z1XAVSS AK34 C1XAVDD Z1XAVSS 1206 6.3V A4XAVDD AJ36 C4XAVSS A4XAVDD C4XAVSS Z1XAVSS A1XAVDD C1XAVSS...
  • Page 163 SIS M661/648FX (3/3) AGP_ADSTB0 VAGCLK FOR SIS661 ONLY 6,10,17 AGP_ADSTB0 VAGCLK C121 22/NA 10P/NA 0402 0402 R169 AGP_ADSTB#0 VAGCLK# 6,10,17 AGP_ADSTB#0 C194 22/NA 10P/NA 0402 0402 FC_VBD[0..11] FC_VBD[0..11] FA503 AGP_AD19 FC_VBD11 6,10 AGP_AD19 AGP_AD20 FC_VBD10 6,10 AGP_AD20 AGP_AD22 FC_VBD9 6,10 AGP_AD22 AGP_AD21 FC_VBD8...
  • Page 164 TV/LVDS ENCODER (SIS302LV) Close to 302LV R542 14.318MHZ_TV 14.318MHZ_TV X501 0402 14.318MHZ/NA C554 C556 22P/NA 22P/NA 0402 0402 +/-10% +/-10% delete for M661 mount for 648FX ATV_LUMA TV_LUMA 0402 ATV_LUMA VBCLK ATV_CRMA 0402 TV_CRMA ATV_CRMA VBCLK VBCTL1 ATV_COMP 0402 TV_COMP VBCTL1 ATV_COMP VBDE...
  • Page 165 ATI M9+X/M10P (1/4) M10-P mount R?,R? M9+X delete R?,R? +3VS AGP_AD[0..31] +3VS AGP_AD[0..31] AGP_AD0 R121 0402 GPIO0 AGP_AD1 R120 0402 GPIO1 AGP_AD2 R117 10K/NA 0402 DIODE SUPPLIES POWER TO GPIO2 AGP_AD3 R116 10K/NA 0402 D503 VDD_CORE RAIL WHEN GPIO3 AGP_AD4 R595 10K/NA 0402...
  • Page 166 ATI M9+X/M10P (2/4) VDD_MEM2.5 L534 120Z/100M VDD_DAC2.5 VMEMA_MD[0..63] VMEMA_MA[0..13] 1608 VMEMA_MD[0..63] VMEMA_MA[0..13] VSS_0 VSS_76 VMEMA_MD0 VMEMA_MA0 C599 C604 C610 DQA0 MAA0 VSS_1 VSS_77 VMEMA_MD1 VMEMA_MA1 0.1U 0.1U DQA1 MAA1 VSS_2 VSS_78 VMEMA_MD2 VMEMA_MA2 1206 0402 0402 DQA2 MAA2 VSS_3 VSS_79 VMEMA_MD3 VMEMA_MA3 6.3V...
  • Page 167 ATI M9+X/M10P (3/4) U512 U513 VMA0 VMDA0 VMA0 VMDA32 VMEMA_MD[0..63] VMA1 VMDA1 VMA1 VMDA33 VMEMA_MD[0..63] +1.25V_DDR +1.25VS VMA2 VMDA2 VMA2 VMDA34 L542 VMEMA_MD0 VMDA0 VMA3 VMDA3 VMA3 VMDA35 BEAD_600Z/100M/NA RP525 VMEMA_MD1 VMDA1 VMA4 VMDA4 VMA4 VMDA36 VMEMA_MD2 VMDA2 VMA5 VMDA5 VMA5 VMDA37 1608...
  • Page 168 ATI M9+X/M10P (4/4) VMEMB_MD[0..63] VMEMB_MD[0..63] VMEMB_MD0 VMDB0 RP524 VMEMB_MD1 VMDB1 VMEMB_MD2 VMDB2 +1.25V_DDR +1.25VS 22*4 L541 1206 VMEMB_MD3 VMDB3 for R0B modify BEAD_600Z/100M/NA VMEMB_MD4 VMDB4 1608 RP559 VMEMB_MD5 VMDB5 VMEMB_MD6 VMDB6 22*4 1206 VMEMB_MD7 VMDB7 VMEMB_MD8 VMDB8 C710 RP557 VMEMB_MD9 VMDB9 VMEMB_MD10 VMDB10...
  • Page 169 DDR SO-DIMMs +1.25V_DDR DIMM 1 BANK0/1 DIMM 2 BANK2/3 +2.5V_DDR +2.5V_DDR DDR_MD59 MD59 MD59 RP573 PLACE CLOSE TO J4 PLACE CLOSE TO J5 RP596 DDR_MD63 10*8 MD63 MD63 33*8 DDR_MD58 RPX8 MD58 MD58 RPX8 DDR_MD62 MD62 MD62 DDR_DQS7 DQS7 +DDRVREF +DDRVREF DQS7 DDR_DQS7...
  • Page 170 +3VS BEAD_600Z/100M/NA LCD / VGA INTERFACE 0603D GND_TV GND_TV 0402 GND_TV BAV99/NA BAV99/NA BAV99/NA 120Z/100M 1608 TV_COMP S-VIDEO TV_COMP 9 C508 C510 Note : BKL_VMAIN is Power Trace 0.1U 0.1U 0402 0402 J501 0402 L504 120Z/100M 1608 ENPBLT L510 120Z/100M 2012 120Z/100M 1608...

  • Page 171: Clock Generator/Buffer

    Clock Generator/Buffer * INTERNAL PULL UP RESISTOR ** INTERNAL PULL DOWN RESISTOR ~ THIS OUTPUT HAS 1.5X DRIVE STRENGTH +3VS +3VS +3VS VDDREF VDDREF VDDZ VDDZ VDDPCI VDDPCI0 VDDREF VDDPCI1 R673 R682 VDDA48 VDDA48 10K/NA 10K/NA VDDAGP PLACE AT CLK SIDE C255 VDDAGP 120Z/100M...
  • Page 172 SIS963(1/3) PCI BUS PULL UP RESISTERS +3VS +3VS RP51 PCI_AD[0..31] PCI_GNT4# PCI_GNT0# 21,26 PCI_AD[0..31] PCI_GNT1# PCI_GNT2# PCI_GNT3# 1206 8.2K*8/NA RP52 PCI_LOCK# PCI_DEVSEL# PCI_IRDY# PCI_STOP# PCI_SERR# PCI_FRAME# PCI_PERR# PCI_PERR# 21,26 PCI_TRDY# PCI_REQ4# IDEAVDD 8.2K*8 1206 PREQ4# IDEAVDD PCI_REQ3# IDEAVSS RP50 PREQ3# IDEAVSS PCI_REQ2# PCI_INTA#...
  • Page 173 SIS963(2/3) Need very close to 963 OSC25MHI OSC25MHO R265 1M/NA 0402 H_INIT# OSC25MHI INIT# OSC25MHI H_INIT# H_A20M# OSC25MHO H_A20M# A20M# OSC25MHO +3VS H_SMI# LAN_MTXC 25MHZ LAN_MTXC 22 H_SMI# SMI# MIITXCLK H_INTR H_INTR INTR +3VS H_NMI R275 0402 LAN_MTXE C298 C302 H_NMI MIITXEN LAN_MTXE 22...
  • Page 174 SIS963(3/3) +3VS C825 C829 C828 C827 C826 0.1U 0.1U 0.1U CLOSE TO 963 0402 0402 0402 0402 0402 +80-20% +80-20% USBP0+ R237 0402 USBP0_P USBP0+ USBP0- R238 0402 USBP0_N C818 C816 USBP0- C793 0.1U 0402 0402 +80-20% C274 C273 22P/NA 22P/NA 0603 0603...
  • Page 175 IDE INTERFACE & IR for R0B modify FIR Module HP-3602 VCC3_IR AVCC AGND FIRSEL FIRSEL F_SEL +3VS VCC3_IR DVCC DGND IRRX IRRX JL502 R798 2.7 IRTX IRTX LEDA SHORT-SMT4 2010 C890 C899 C902 150U GP2W1001YP 10U/NA 0.1U 7343 288001001001 1206 0402 6.3V IR_GP2W1001YP...
  • Page 176 CARDBUS VCCA VPPEN1 for R0B modify R789 R319 C881 0.1U 0/NA 0/NA GRST# VPPEN0 0805 0402 0402 R748 VCCEN#0 PCIRST# VCCEN#1 U523 VPPEN0 0402 VPPEN1 R747 +SDVDD PCI_AD[0..31] 0/NA0402 17,26 PCI_AD[0..31] VCCA PCI_AD0 VCC_SD PCI_AD1 SD_PWREN# SD_PWREN# SD_PWREN# 25 PCI_AD2 SD_CLKIN R743 SD_CLKIN...
  • Page 177 LAN AND MDC +3V_LAN PHY ADDRESS = 00001 CLOSE TO ICS1839AF Layout Note: R655 1608 L523 L543 120Z/100M 90Z/100M +3V_LAN 二組各自平行走線等長 二組中間須絕緣 0402 , EX: GND 0603 0603 SHIELDING RP597 LAN_MRXD0 S/W/W/S=12/6/6/12 mils 61.9 61.9 LAN_MRXD0 RXD0 P0AC LAN_MRXD1 R645 R640 LAN_MRXD1 RXD1...
  • Page 178 IEEE1394A/USB 2.0/Parallel Port [(TPA1+)+(TPA+)] have to the same length with [(TPA1-)+(TPA-)] [(TPB1+)+(TPB+)] have to the same length with [(TPB1-)+(TPB-)] [(TPA1+/-)+(TPA+/-)],[(TPB1+/-)+(TPB+/-)] :Trace width 8mil,Space 8mil,Length < 5 Inch 1394VCC3 C925 R793 0402 for R0B EMI modify 1394VCC3 +3VS_1394 0402 R794 0402 JL19 JP_NET10 1394AGND...

  • Page 179: Audio Codec

    AUDIO CODEC +3VS L557 120Z/100M 1608 C898 0.01U 0402 +12VS Close to Codec C874 C873 C869 OUT0 0.1U 0.1U OUT1 0402 0402 1206 Close to ADP3301 AVDDAD ADP3301AR-5 C363 C624 0.1U R329 0402 1206 14.318MHZ_AUDIO AUDIO_XTALIN R799 0603 +80-20% 14.318MHZ_AUDIO XTAL_IN AVDD1 AUDIO_XTALOUT...
  • Page 180 Super I/O & Flash ROM R350 CARDBUS & CARDREADER CONN. 0402 CL-190G LED_CL190 SD[0..7] +SDVDD 17,27 SD[0..7] +5VS +SDVDD +SMVDD +SDVDD L555 PWROK 6,18,27 PWROK BEAD_600Z/100M DTC144TKA 0603D R233 0402 for R0B modify 0/NA SD_LED# RP54 RP53 SD_LED# SM_LED# 47K*4 RP56 R741 RP57...

  • Page 181: Mini-Pci & Usb

    Mini-PCI & USB 2.0 +5VS R351 0402 +3VS Wireless LED CL-190G R679 LED_CL190 10K/NA 0402 L514 WIRE_LED# F503 Q515 USB3VCC5 WIRE_LED 120Z/100M MINISMDC110 +3VS 2012 DTC144TKA C520 0402 R214 0.1U 220U VIN0 VOUT0 0402 1206 0402 0402 +80-20% USB_OC#2 EW6.3 VIN1 VOUT1 USB_OC#2...
  • Page 182 H8 Mode Select Table Micro Controller(H8) MODE Description MODE1 Expended mode with On-Chip ROM disable MODE2 Expended mode with On-Chip ROM enable I_LIMIT I_LIMIT MODE3 Single-Chip mode +5VA H8_VDD5 Close to H8-3437S Close to H8-3437S +5VS +5VA 120Z/100M C294 C321 C831 C820 C819...
  • Page 183 BAV70LT1 ALWAYS BAV70LT1 ADINP OPEN-SMT4 ADINP_1 JO12 SHORT-SMT4 OPEN-SMT4 ADINP_2 SHORT-SMT4 PQ501 FDS6679 PR503 PD503 DCP3 DVMAIN DVMAIN PR504 EC31QS04-TE12L DC2010 470K 470K 0402 PD502 0402 PR10 PR11 PC506 PC505 0.1U 1000P 0805 0805 0603 0402 PC18 EC31QS04-TE12L 0.1U DC2010 0603 PD501 LEARNING#...
  • Page 184 +5VAS DVMAIN PU505 DVMAIN FDS6679 PR49 PR48 DBATT DVMAIN 750K 100K DBATT 0603 0402 PU504 FDS6679 PR28 BATT_DEAD BATT_DEAD 27 PU9A LMV393M +5VA SSOP8 0402 PR29 100K 0402 PR24 100K 0402 PR57 PC63 100K 0.1U 0402 0603 PQ12 ADEN# 2N7002 ADEN# PR31 PQ14...
  • Page 185 DVMAIN DVMAIN_D 120Z/100M 2012 PC74 PC81 PC79 PC78 PC83 PC90 0.1U 0.1U PC564 0603D 0603D 1210 1210 1210 1210 0.1U 0603D 20%/X5R 20%/X5R 20%/X5R 20%/X5R PC563 1000P 0402 PD13 BAT54A PR94 PC117 INTVCC PU26 PC565 HA178L12UA 1000P SOT89N 0402 PU18 PD507 AO4404 0402...
  • Page 186 DVMAIN DVMAIN_D2 120Z/100M PC561 2012 1000P PC56 PC71 PC73 0.1U PC560 PC70 PC72 0402 0603D 1210 1210 0.1U PC559 0603D 1210 1210 0.1U 20%/X5R 20%/X5R 0603D 20%/X5R 20%/X5R PD505 BAT54A PR69 PC85 INTVCC1 PC562 PU12 SI4892DY TBG1 1000P 0402 0402 PC88 1206 0.1U...
  • Page 187 +5VA PR566 changed from 2K to 1K DVMAIN DVMAIN PC115 PC110 PC118 PR567 120Z/100M 0.1U 2012 1210 0603 1210 0402 20%/X5R 20%/X5R PC578 PC581 PR566 0.01U 0.1U PU510 PU24 0603 0402 PR565 0402 MAINPWR AO4404 MAINPWR 27,30 HDRV 0402 BOOT FPWM PD508 BAT54A...
  • Page 188 CPU_CORE (1/2) +5VS PR508 PL507 D/VMAIN_P3 DVMAIN PR23 PR20 0402 PC39 120Z/100M 2012 PC525 PC37 PC517 PC511 PC516 PC520 7243 PL506 0402 0402 0.1U PQ504 1000P 0.1U FDD6035AL 7243 0805 1210 1210 0402 0603 SOT252B_FET BOOT PR14 20%/X5R 20%/X5R 120Z/100M 2012 UGATE PL503...
  • Page 189 PR528 pin1 changed from +5VS to +5V CPU_CORE (2/2) PR528 0402 DVMAIN FOR D/T CPU FOR PORTABLE CPU PC51 PR550 0603 80.6K 0603 CPU_VID[0..5] PU503 PR46 10K 0402 CPU_VID[0..5] PR543 0402 RAMPADJ CPU_VID0 VID0 PR546 0402 VR-TT# CPU_VID1 VID1 PR538 0402 PWM1 PWM1...
  • Page 190 HISTORY PAGE 4 ADD JUNCTION FOR R0A LOSE PAGE 5 Change CAP. from 10uF to 22uF PAGE 6 Delete RP5 for CRT detect PAGE 10 Change R618 from 60.4 ohm to 0 ohm PAGE 10 Add R132 from N/A to mount for S3 leakage PAGE 11 Change L538,L539 from 120Z/100M to 0 ohm for voltage level issue PAGE 12 Delete...

  • Page 191: Reference Material

    Reference Material q Mobil Intel Pentium 4 Processor-M ……..…………………….. ……..… Intel Corp q SiS648FX Data Sheet ………………………………Silicon Integrated Systems Corp q SiS963 Data Sheet …………………………………Silicon Integrated Systems Corp q 8555 Hardware Engineering Specification ……………. Technology Corp./MiTAC...
  • Page 192 SERVICE MANUAL FOR 8555 SERVICE MANUAL FOR SERVICE MANUAL FOR 8555 Sponsoring Editor : Jesse Jan Author : Valley Hu Assistant Editor : Ping Xie Publisher : MiTAC International Corp. Address : 1, R&D Road 2, Hsinchu Science-Based Industrial, Hsinchu, Taiwan, R.O.C.

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