Text preview for : mitac 8355.pdf part of Mitac mitac 8355 Mitac mitac 8355.pdf
Back to : mitac 8355.pdf | Home
SERVICE MANUAL FOR
8355
BY: Rain Li
Repair Technology Research Department /EDVD
Nov.2003
8355 N/B MAINTENANCE
Contents
1. Hardware Engineering Specification ........................................................................... 4
1.1 Introduction ......................................................................................................................... 4
1.2 System Hardware Part............................................................................................................. 6
1.3 Other Functions ..................................................................................................................... 47
1.4 Peripheral Components............................................................................................................ 52
1.5 Power Management................................................................................................................. 53
1.6 Appendix 1 : VT8235 GPIO Definition.......................................................................................... 56
1.7 Appendix 2 : H8 Pins Definition ................................................................................................. 58
1.8 Appendix 3 : 8355 Product Specification ....................................................................................... 63
2. System View and Disassembly .................................................................................... 66
2.1 System View ........................................................................................................................ 66
2.2 System Disassembly ............................................................................................................... 69
3. Definition & Location of Connectors / Switches .............................................................. 95
3.1 Mother Board ....................................................................................................................... 95
4. Definition & Location of Major Components ................................................................. 98
4.1 Mother Board ....................................................................................................................... 98
5. Pin Description of Major Component .......................................................................... 100
5.1 AMD AthlonTM 64 Processor .................................................................................................... 100
5.2 K8T800M (VT8385) North Bridge ............................................................................................. 102
1
8355 N/B MAINTENANCE
Contents
5.3 VT8235 South Bridge ............................................................................................................. 106
6. System Block Diagram ............................................................................................ 115
7. Maintenance Diagnostics .......................................................................................... 116
7.1 Introduction ........................................................................................................................ 116
7.2 Error Codes ........................................................................................................................ 117
7.3 Debug Tool .......................................................................................................................... 119
8. Trouble Shooting ................................................................................................... 121
8.1 No Power ............................................................................................................................ 122
8.2 Battery Can not Be Changed ................................................................................................... 126
8.3 No Display ........................................................................................................................... 128
8.4 AGP Controller Failure LCD No Display .................................................................................... 132
8.5 External Monitor No Display ................................................................................................... 132
8.6 Memory Test Error ............................................................................................................... 136
8.7 Keyboard (K/B) Touch-Pad (T/P) Test Error ................................................................................ 138
8.8 Hard Driver Test Error ........................................................................................................... 140
8.9 CD-ROM Driver Test Error...................................................................................................... 142
8.10 USB Port Test Error .............................................................................................................. 144
8.11 PC Card Socket Failure ......................................................................................................... 147
8.12 Memory-Card Socket Failure .................................................................................................. 149
8.13 IEEE1394 Test Error............................................................................................................. 151
8.14 LAN Test Error.................................................................................................................... 153
2
8355 N/B MAINTENANCE
Contents
8.13 Audio Failure ...................................................................................................................... 155
9. Spare Parts List ..................................................................................................... 158
10. System Exploded Views .......................................................................................... 172
11. Circuit Diagram ................................................................................................... 174
12. Reference Material ................................................................................................ 207
3
8355 N/B MAINTENANCE
1. Hardware Engineering Specification
1.1 Introduction
The 8355 motherboard would support the AMD ClawHammer K8 processor with uPGA Package,
2700+/3000+/3300+/3600+/3900+/4200+, FSB 800MHz
This system is based on PCI architecture, which have standard hardware peripheral interface. The power management
complies with Advanced Configuration and Power Interface (ACPI) 2.0. 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 ico LEDs to display system status, such as AC Power, Battery Power, Battery status, CD-
ROM, HDD, NUM LOCK, CAP LOCK, SCROLL LOCK, WIRELESS LAN status. It also equipped 4 USB2.0 ports.
The memory subsystem supports 0MB on board; Expandable up to 1024MB Expandable with combination of optional
128/256/512 MB memory 200-pin DDR 266/333/400 Memory Module x2, PC-2100/2700/3200 specification
The K8T800 North Bridge plus VT8235 South Bridge chipset is a high performance, cost-effective and energy
efficient solution for the implementation of desktop personal computer systems with 8 / 16-bit 800 / 600 / 400 / 200
MHz HyperTransport. CPU host interface based on AMD K8 / ClawHammer. processors.
The VT8235 "V-Link Client Controller" is a highly integrated PCI /LPC controller. Its internal bus structure is based
on a 66 MHz PCI bus that provides 2x bandwidth compared to previous generation PCI bridge chips. The VT8235
also provides a 533 MB/sec bandwidth Host / Client V-Link interface with V-Link-PCI and V-Link-LPC controllers.
It supports six PCI slots of arbitration and decoding for all integrated functions and LPC bus.
4
8355 N/B MAINTENANCE
The RADEON MOBILITY 9600 provides the fastest and most advanced 2D, 3D, and multimedia graphics
performance for the latest applications in full 32-bit color. Its architecture introduces the latest achievements in the
graphics industry, which enable the use of the progressive new features in upcoming applications, but without
compromising performance. ATI's exclusive support of DirectX