MiTAC 7521 PLUS/N service manual Sis

7521Plus / N N/B MAINTENANCE

8.2 NO DISPLAY

******Power Good & Reset System ******

7521

Power Module

+2.5V

+S12V

+3V

D5

+S5V_P

R80

SH23

+3V_P

PWROK

CPU_PWRGOOD

1.5V

VCC

U10 RESET#

U503

SH2

1.8V

MAX809

VCC_CORE

GND

H8_PWRON_SIS

CPU

FC-PGA

+3V

+S3V

SH3

CPURST#

R601

+5V

SIS_PWRBTN#

U31SH18

R79

D9

SH20

SH20

SH19

CD-ROM

U27

CPU_PWR_ON

H8_PWRON

18

Q10

PCIRST#

LPC

RSTDRY

14 U14

Super I/O

CPU_PWR_ON

R78

U16

U24

14

TO

77

100

J512

PWR_ON

R77

H8/

ISA

PC97338VJG

PWR_ON

SIS-

3434F

VCC U12 SH6

RST_CDROM

SH20

H8_RESET#

RESET#

630S

J516

MAX809

VDD5

VCC U504RESET#

23

MAX809

R97

HDD

R576

GND

GND

PCIRST#

POWERBTN#

SIS PWROK

JL21

PCIRSTNS#

POWER ON BTN

SW2

R575

C148

R98

C588

R57

1000P

14

166

U21SH12

ARST

U13 SH15

U505

SH14

11

SH16

POWER

PCMCIA/CARDBUS

U5

SWITCH

CONTROLLER

SIS900

CODEC

MATRIX

TI 1225

CS4299

J511

FM/D

110