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SERVICE MANUAL FOR SERVICE MANUAL FOR SERVICE MANUAL FOR 8575A 8575A 8575A 8575A 8575A 8575A 8575A 8575A 8575A 8575A 8575A 8575A BY: Sissel Diao Sissel Diao TESTING TECHNOLOGY DEPARTMENT / TSSC TESTING TECHNOLOGY DEPARTMENT / TSSC Aug . 2002 8 5 7 5 A

8575A N/B Maintenance A N/B Maintenance 8575 Contents 1. Hardware Engineering Specification ………………………………………………………………… Introduction …………………………………………………………………………………………………………. 1.1 1.2 System Hardware Parts ……………………………………………………………………………………………. 1.3 Other Functions …………………………………………………………………………………………………….. 1.4 Peripheral Components …………………………………………………………………………………………….. 1.5 Power Management ………………………………………………………………………………………………… 1.6 Appendix 1: SiS961 GPIO Definitions …………………………………………………………………………….. 1.7 Appendix 2: H8 Pins Definitions …………………………………………………………………………………… 2. System View and Disassembly ………………………………………………………………………... 2.1 System View …………………………………………………………………………………………………………. 2.2 System Disassembly ………………………………………………………………………………………………… 3. Definition & Location of Connectors / Switches …………………………………………………….. 3.1 Mother Board ……………………………………………………………………………………………………….. 3.2 DC Power Board ……………………………………………………………………………………………………. 3.3 ESB Board …………………………………………………………………………………………………………... 3.4 Touch-pad …………………………………………………………………………………………………………… 3.5 Daughter Board …………………………………………………………………………………………………….. 4 4 6 42 47 50 52 53 59 59 62 81 81 84 85 86 86 1

8575A N/B Maintenance A N/B Maintenance 8575 Contents 4. Definition & Location of Major Component ………………………………………………………… Mother Board ……………………………………………………………………………………………………….. 4.1 5. Pin Description of Major Component ………………………………………………………………... Intel Pentium 4 Processor mPGA478 Socket ……………………………………………………………………... 5.1 5.2 SiS650 IGUI Host / Memory Controller …………………………………………………………………………... 5.3 SiS691 MuTIOL Media I/O Controller …………………………………………………………………………… 5.4 SiS301LV / Chrontel CH7019 TV/LVDS Encoder ……………………………………………………………….. 5.5 PCI1410GGU PCMCIA Controller ……………………………………………………………………………….. 5.6 uPD72872 IEEE1394 Controller …………………………………………………………………………………… 6. System Block Diagram ………………………………………………………………………………… 7. Maintenance Diagnostics ……………………………………………………………………………… 7.1 Introduction …………………………………………………………………………………………………………. 7.2 Error Codes …………………………………………………………………………………………………………. 7.3 Maintenance Diagnostics …………………………………………………………………………………………… 8. Trouble Shooting ………………………………………………………………………………………. No Power …………………………………………………………………………………………………………….. 8.1 87 87 89 89 95 100 106 109 114 116 117 117 118 120 121 122 2

8575A N/B Maintenance A N/B Maintenance 8575 Contents 8.2 No Display …………………………………………………………………………………………………………… 8.3 VGA Controller Failure LCD No Display ………………………………………………………………………… 8.4 External Monitor No Display ……………………………………………………………………………………… 8.5 Memory Test Error ………………………………………………………………………………………………… 8.6 Keyboard (K/B) Touch-Pad (T/P) Test Error ……………………………………………………………………. 8.7 Hard Disk Drive Test Error ……………………………………………………………………………………….. 8.8 CD-ROM Driver Test Error ……………………………………………………………………………………….. 8.9 USB Test Error ……………………………………………………………………………………………………… 8.10 PIO Port Test Error ………………………………………………………………………………………………. 8.11 Audio Failure ……………………………………………………………………………………………………… 8.12 LAN Test Error …………………………………………………………………………………………………… 8.13 PC Card Socket Failure …………………………………………………………………………………………… 8.14 IEEE 1394 Failure ………………………………………………………………………………………………… 9. Spare Parts List ……………………………………………………………………………………….. 10. System Exploded Views ……………………………………………………………………………… 11. Circuit Diagram ……………………………………………………………………………………… 12. Reference Material …………………………………………………………………………………… 129 133 135 137 139 141 143 145 148 150 153 155 157 159 182 184 217 3

8575A N/B Maintenance A N/B Maintenance 8575 1. Hardware Engineering Specification 1.1 Introduction The 8575A motherboard would support the Intel® Pentium® 4 processor with FC-PGA2 packaged, using 478-Pin micro PGA (mPGA478) socket, which will supports different speeds up to Willamette P4 1.7GHz (Throttling)/Northwood above 2.0GHz (Throttling). This system is based on PCI architecture, which have standard hardware peripheral interface. The power management complies with Advanced Configuration and Power Interface (ACPI) 1.0. It also provides easy configuration through CMOS setup, which is built in system BIOS software and can be pop-up by pressing F2 at system start up or warm reset. System also provides icon LEDs to display system status, such as power indicator, HDD/CDROM, NUM LOCK, CAP LOCK, SCROLL LOCK, SUSPEND MODE and Battery charging status. It also equipped 2 USB ports. The memory subsystem supports 0MB on board memory, two JEDEC-standard 200-pin, small-outline, dual in-line memory module (SODIMM), support PC2100 & PC2700. SiS650 IGUI Host Memory Controller integrates a high performance host interface for Intel Pentium 4 processor, a high performance 2D/3D Graphic Engine, a high performance memory controller, an AGP 4X interface, and SiS MuTIOL® Technology connecting w/ SiS961 MuTIOL® Media I/O. 4

8575A N/B Maintenance A N/B Maintenance 8575 The SiS961 MuTIOL® Media I/O integrates the Audio Controller with AC 97 Interface, the Ethernet MAC, the Dual Universal Serial Bus Host Controllers, the IDE Master/Slave controllers, and the MuTIOL® Connect to PCI bridge. The PCI to LPC bridge, I/O Advanced Programmable Interrupt Controller, legacy system I/O, I/O Advanced Programmable Interrupt Controller and legacy power management functionalities are also integrated. The SiS961 also incorporates an universal interface supporting the asynchronous inputs/outputs of the X86 compatible microprocessors like P4. The SiS301LV is a Display device which has two data operation paths. Channel B path is selected when SiS301LV performs TV or LCD only display function. There’s scaling hardware in this path. In LCD display mode, this hardware can make lower VGA resolution display to fit up to 1280x1024 LCD panel. In TV display mode, this scaler can provide overscan and underscan option for TV. At TV and LCD simultaneous display mode, TV data stream run through Channel B and LCD data stream run through Channel A. To provide for the increasing number of multimedia applications, the AC97 CODEC ALC201 is integrated onto the motherboard. A full set of software drivers and utilities are available to allow advanced operating systems such as Windows Me and Windows 2000 to take full advantage of the hardware capabilities such as bus mastering IDE, Windows 95-ready Plug & Play, Advanced Power Management (APM) and Advance configuration and power interface (ACPI). Following chapters will have more detail description for each individual sub-systems and functions. 5

8575A N/B Maintenance A N/B Maintenance 8575 1.2 System Hardware Parts Mobile Intel® Pentium® 4 Processor – M Built on 0.13-micron process Available speeds 1.80GHz, 1.70GHz, 1.60GHz, 1.50GHz, 1.40GHz Intel® Pentium® 4 processor; Willamette/Northwood with mFCPGA2 Package, mPGA 478 Socket Support up to Willamette P4 1.7GHz (Throttling) / Northwood above 2.0 GHz(Throttling) FSB 400MHz /PC 2100/1600 SiS 650+SiS961: Host & Memory & AGP Controller integrates a high performance host interface for Intel Pentium 4 processor, a high performance memory controller, a AGP interface, and SiS MuTIOL® Technology connecting w/ SiS961 MuTIOL® Media IO. SiS301LV 256KB Flash EPROM Inside -Includes System BIOS, VGA BIOS, and plug & Play capability, ACPI 0MB on board memory -Two JEDEC-standard 200-pin, small-outline, dual in-line memory module (SODIMM) -Support PC2100 & PC2700 8/16/32/64 UMA ICS 952001 ICS 93722 CPU Core logic VGA Control System BIOS Memory Audio System Super I/O Modem PHY of LAN IEEE1394 Video Memory Clock Generator DDR Clock Buffer Embedded controller Hitachi H8 3437S PCMCIA Card Bus Controller: TI PCI1410 One type II slot/ Card Bus support/ No ZV port support Power Switch : TI TPS2211 AC97 CODEC: Advance Logic, Inc, ALC201 Power Amplifier: TI TPA0202 NS PC87393 56Kbps (V.90, worldwide) MDC Modem ICS1893Y-10 10/100 base T PHY IEEE1394 OHCI Controller : NEC uPD72872 6

8575A N/B Maintenance A N/B Maintenance 8575 1.2.1 CPU_Intel Pentium 4 Processor Built on 0.13-micron process technology and Intel® NetBurst™ micro-architecture, the Mobile Intel® Pentium® 4 Processor - M represents a new generation of mobile computing. It provides superior capabilities for graphics-intensive multimedia applications, and processor-intensive background computing tasks such as compression, encryption, and virus scanning. Enhanced Intel® SpeedStep® technology helps to optimize application performance and power consumption, and Deeper Sleep Alert State, a dynamic power management mode, adjusts voltage during brief periods of inactivity - even between keystrokes - for longer battery life. Innovative Micro FCPGA packaging technology enables the processor to fit into small form factors, such as thin-and-light notebooks. The Intel® Pentium® 4 processor, Intel’s most advanced, most powerful processor, is based on the new Intel® NetBurst™ micro-architecture. The Pentium 4 processor is designed to deliver performance across applications and usages where end users can truly appreciate and experience the performance. These applications include Internet audio and streaming video, image processing, video content creation, speech, 3D, CAD, games, multi- media, and multi-tasking user environments. The Intel Pentium 4 processor delivers this world-class performance for consumer enthusiast and business professional desktop users as well as for entry-level workstation users. Highlights of the Pentium 4 Processor : Available at speeds ranging from 1.50 to 2 GHz Featuring the new Intel NetBurst micro-architecture 7

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