MiTAC 7521 PLUS/N service manual 7521Plus / N N/B Maintenance

	7521Plus / N N/B MAINTENANCE
CONTENTS
1. Hardware Engineering Specification --------------------------------------------------------------------------------------------------------		3
1.1	Introduction -----------------------------------------------------------------------------------------------------------------------------	3
1.2	Hardware System ----------------------------------------------------------------------------------------------------------------------	4
1.3	Special Feature Function -------------------------------------------------------------------------------------------------------------	37
1.4	SMM And System BIOS --------------------------------------------------------------------------------------------------------------	39
1.5	Peripheral Component ----------------------------------------------------------------------------------------------------------------	42
1.6	Appendix: GPIO Definitions ---------------------------------------------------------------------------------------------------------
		49
2. System View And Disassembly ----------------------------------------------------------------------------------------------------------------		51
2.0	Tools Introduction ---------------------------------------------------------------------------------------------------------------------	51
2.1	System View -----------------------------------------------------------------------------------------------------------------------------	52
2.2	System Disassembly -------------------------------------------------------------------------------------------------------------------	55
3. Definition & Location Of Connectors / Switches Setting --------------------------------------------------------------------------------		76
3.1 Mother Board -A -----------------------------------------------------------------------------------------------------------------------		76
3.2	Mother Board Switch Table ---------------------------------------------------------------------------------------------------------	77
3.3	Mother Board -B -----------------------------------------------------------------------------------------------------------------------	78
3.4	Daughter Board ------------------------------------------------------------------------------------------------------------------------	79
3.5	Charger Board --------------------------------------------------------------------------------------------------------------------------
		80
3.6 IQSB Board ----------------------------------------------------------------------------------------------------------------------------------------------------------		81
3.7 Easy Start Button Board -----------------------------------------------------------------------------------------------------------------------------------------		81
4. Definition & Location Of Major Components ---------------------------------------------------------------------------------------------		82
4.1 Main Board ( Side A ) -----------------------------------------------------------------------------------------------------------------
		82
4.2	Main Board ( Side B ) -----------------------------------------------------------------------------------------------------------------
		83
5. Pin Description Of Major Components -----------------------------------------------------------------------------------------------------		84

5.1 Pentium III/Celeron FC-PGA2 CPU -----------------------------------------------------------------------------------------------	84
5.2 SiS630S Slot 1/Socket 370 2D/3D Ultra-AGP™ Single Chipset --------------------------------------------------------------	90	1