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SERVICE MANUAL & TROUBLESHOOTING GUIDE FOR
SERVICE MANUAL & TROUBLESHOOTING GUIDE FOR
SERVICE MANUAL & TROUBLESHOOTING GUIDE FOR
7521 Plus/N
7521 Plus/N
BY ： Richard Wang
BY ： Richard Wang
TESTING TECHNOLOGY DEPARTMENT / TSSC
TESTING TECHNOLOGY DEPARTMENT / TSSC
AUG. 2001 AUG. 2001
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7521Plus / N N/B MAINTENANCE 7521Plus / N N/B MAINTENANCE CONTENTS CONTENTS 3 1. Hardware Engineering Specification ------------------------------------------------------------------------------- 1. Hardware Engineering Specification ------------------------------------------------------------------------------- 3 1.1 Introduction ----------------------------------------------------------------------------------------------------------------------------- 4 1.2 Hardware System -------------
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7521Plus / N N/B MAINTENANCE 7521Plus / N N/B MAINTENANCE CONTENTS CONTENTS 97 6. System Block Diagram ------------------------------------------------------------------------------------------------- 6. System Block Diagram ------------------------------------------------------------------------------------------------- 98 7. Maintenance Diagnostic 7. Maintenance Diagnostic ---------------------------------- ---------------------------------------------------------------- --------------
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7521Plus / N N/B MAINTENANCE 7521Plus / N N/B MAINTENANCE 1. Hardware Engineering Specification 1.1 Introduction 1.1.1 General Description This document describes the engineering specification for 7521 plus portable notebook computer system. 1.1.2 System Overview The 7521 plus model motherboard will accept Intel Pentium III at FSB 133/100MHz and Celeron at FSB 66MHz processor with FC-PGA packaged. Those are Pentium III 600/650/667/700/733/ 750/800/866 MHz, and Celeron 3/566/600/633/667/70
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7521Plus / N N/B MAINTENANCE 7521Plus / N N/B MAINTENANCE The SiS900 is a single chip 10/100Mbps Fast Ethernet LAN solution, which fully integrates both the Media Access Controller (MAC) with PCI bus master interface and 802.3u compliant 10/100Mbps physical layer interface into a 128 pins PQFP, 0.35um process chip. It is targeted at low-cost, low-power, high volume desktop PC motherboards, mobile PC module, adapter cards, and embedded systems. The Chrontel’s CH7005 digital PC to TV encode
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7521Plus / N N/B MAINTENANCE 7521Plus / N N/B MAINTENANCE 1.2.2 CPU MODULE Intel Pentium III/Celeron Processors with 370 pins FC-PGA package. Pentium III 600/650/667/700/733/750/800 MHz, FC-PGA package at FSB 133/100Mhz. Celeron 600/633/667/700/733 MHz, FC-PGA package at FSB 66Mhz. 1.2.3 Synthesizer System frequency synthesizer : ICS9248-102 Maximized EMI suppression using Integrated Circuit System spread spectrum technology. Three copies of CPU output, output to output skew between them wit
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7521Plus / N N/B MAINTENANCE 7521Plus / N N/B MAINTENANCE By integrating the UltraAGP TM technology and advanced 64-bit graphic display interface, SiS630S delivers AGP 4x performance and memory bandwidth of up to 1 GB/s. In addition, SiS also supports an extra AGP Slot that supports 4X and Fast Write transactions. Furthermore, SiS630S provides powerful hardware decoding DVD accelerator to improve the DVD playback performance. In addition to providing the standard interface for CRT monitor
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7521Plus / N N/B MAINTENANCE 7521Plus / N N/B MAINTENANCE Integrated DRAM Controller 3-DIMM/6-Bank of 3.3V SDRAM Supports Memory Bus up to 133 MHz System Memory Size up to 1.5 GB Up to 512MB per Row Supports 16Mb, 64Mb, 128Mb, 256Mb, 512Mb SDRAM Technology Suspend-to-RAM (STR) Relocatable System Management Memory Region Programmable Buffer Strength for CS#, DQM[7:0], WE#, RAS#, CAS#, CKE, MA[14:0] and MD[63:0] Shadow RAM Size from 640KB to 1MB in 16KB increments Two Programmable PCI Hole Are
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7521Plus / N N/B MAINTENANCE 7521Plus / N N/B MAINTENANCE Integrated Host-to-PCI Bridge Zero Wait State Burst Cycles CPU-to-PCI Pipeline Access 256B to 4KB PCI Burst Length for PCI Masters PCI Master Initiated Graphical Texture Write Cycles Re-mapping Reassembles PCI Burst Data Size into Optimized Block Size Fast PCI IDE Master/Slave Controller Supports PCI Bus Mastering Native Mode and Compatibility Mode PIO Mode 0, 1, 2, 3, 4 Multiword DMA Mode 0, 1, 2 Ultra DMA 33/66/100 Two Independent I
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7521Plus / N N/B MAINTENANCE 7521Plus / N N/B MAINTENANCE 32-Bit VLIW Floating-Point Primitive Setup Engine Supports Flat and Gouraud Shading Supports High Quality Dithering Supports Bump Mapping Supports Z-Test, Stencil Test, Alpha Test and Scissors Clipping Test Supports Z Pre-Test for Reducing Texture Read DRAM Bandwidth Supports Individual Z-Buffer and Render Buffer at the Same Time Supports 16/24/32 BPP Z Buffer Integer/Floating Formats Supports 16/32 BPP Render Buffer Format Supports 1
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7521Plus / N N/B MAINTENANCE 7521Plus / N N/B MAINTENANCE Internal Full 32 Bits ARGB Format Ultra Pipelined Architecture for Ultra High Performance and High Rendering Quality 128-Bit 2D Engine with a Full Instruction Set Built-In 64x64x2 Bit-Mapped Hardware Cursor Built-In 32x32x16, 32x32x32 Bit-Mapped Color Hardware Cursor Maximum 64 MB Frame Buffer with Linear Addressing MPEG-2 ISO/IEC 13818-2 MP@ML and MPEG-1 ISO/IEC 11172-2 Standards Compliant Supports Hardware DVD Accelerator Direct DVD
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7521Plus / N N/B MAINTENANCE 7521Plus / N N/B MAINTENANCE Built-in Programmable 24-bit True-Color RAMDAC up to 270 MHz Pixel Clock RAMDAC Snoop Function Built-in Reference Voltage Generator and Monitor Sense Circuit Supports Down-Loadable RAMDAC for Gamma Correction in High Color and True Color Mode Built-in Dual-Clock Generator Supports Multiple Adapters and Multiple Monitors Built-in PCI Multimedia Interface Supports Digital Flat Panel Port for Digital Monitor (LCD Panel) Built-in VESA Plu
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7521Plus / N N/B MAINTENANCE 7521Plus / N N/B MAINTENANCE Low Pin Count Interface Forwards PCI I/O and Memory Cycles into LPC bus Translates 8/16 bit DMA cycles into PCI bus cycles Advanced PCI H/W Audio & Modem Advanced Power Management Meets ACPI 1.0 Requirements Meets APM 1.2 Requirements ACPI Sleep States Include S1, S3, S4, S5 CPU Power States Include C0, C1, C2 C3 Power Button with Override RTC Day-of-Month, Month-of-Year Alarm 24-bit Power Management Timer LED Blinking in S0,S1 and S3
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7521Plus / N N/B MAINTENANCE 7521Plus / N N/B MAINTENANCE Integrated Interrupt Controller Two 8237A Compatible DMA Controller Two 8259A Compatible Interrupt Controllers Level or Edge Triggered programmable Serial IRQ Interrupt Source Re-routable to Any IRQ channel Three 8254 Compatible Programmable 16-bits counters System timer interrupt Generate refresh request Speaker output Integrated Keyboard Controller Hardwired Logic Provides Instant Response Supports PS/2 Mouse Interface Password Secu
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7521Plus / N N/B MAINTENANCE 7521Plus / N N/B MAINTENANCE Universal Serial Bus Host Controller Open HCI Host Controller with Root Hub Two USB Host Controllers Six USB Ports Supports Legacy Devices Over Current Detection I²C Bus/SMBus Series Interface Integrated Fast Ethernet Controller and MAC Interface Plug and Play Compatible High-Performance 32-Bit PCI Bus Master Architecture with Integrated Direct Memory Access (DMA) Controller for Low CPU and Bus Utilization Supports an Unlimited PCI B
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7521Plus / N N/B MAINTENANCE 7521Plus / N N/B MAINTENANCE 1.2.5 Super IO: NS PC 97338VJG High speed PC16550A compatible UART with receive/transmit 16 Bytes FIFO programmable serial baud rate generator Multi-mode parallel port support including standard port, EPP/ECP (IEEE1284 compliant, 2 interrupt pins) Plug and Play module FDC, 100% IBM compatible, S/W & register compatible to 82077 with 16Bytes data FIFO Support 3-Mode FDD FIR/MIR/SIR/SHARP ASK for Infrared application. COM2 IrDA 1.0/ IrD
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7521Plus / N N/B MAINTENANCE 7521Plus / N N/B MAINTENANCE 1.2.6 PC CARD interface controller : TI1225 ACPI 1.0 Compliance PCI Power Management interface specification 1.0 Compliance Supports distributed DMA (DDMA) and PC/PCI DMA Advanced submicron, low-power CMOS technology. Supports two I/O windows and two memory windows available to each cardbus socket. Supports five PCI memory windows and two I/O windows available to each PC CARD16 socket. Supports Burst Transfers To Maximize Data Through
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7521Plus / N N/B MAINTENANCE 7521Plus / N N/B MAINTENANCE Provides zoom video port function in socket B. 208-Pin LQFP package 1.2.7 DUAL-SLOT PC CARD POWER INTERFACE SWITCH : TPS2206 Fully Integrated VCC and V pp Switching for Dual-Slot PC Card Interface I2C 3-Lead Serial Interface Compatible With CardBus Controllers 3.3 V Low-Voltage Mode Meets PC Card Standards RESET for System Initialization of PC Cards 12-V Supply Can Be Disabled Except During 12-V Flash Programming Short Circuit and The
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7521Plus / N N/B MAINTENANCE 7521Plus / N N/B MAINTENANCE 16-bit free-running timer One 16-bit free-running counter Two output-compare lines Four input capture lines 8-bit timer (2 channels) Each channel has one 8-bit up-counter, two time constant registers PWM timer (2 channels) Resolution: 1/250 Duty cycle can be set from 0 to 100% I²C bus interface (one channel) Include single master mode and slave mode Host interface (HIF) 8-bit host interface port Three host interrupt requests (HIRQ1, 1
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7521Plus / N N/B MAINTENANCE 7521Plus / N N/B MAINTENANCE Interrupts Nine external interrupt lines: NMI#, IRQ0 to 7# 26 on-chip interrupt sources Power-down modes Sleep mode Software standby mode Hardware standby mode A single chip microcomputer On-chip flash memory Maximum 64-kbyte address space Support three PS/2 port for external keyboard, mouse and internal track pad. Support SMI, SCI trigger input: Cover switch Battery charging control Smart Battery monitoring Control D/D system on/off
