MiTAC 8050QMA Manuel de service télécharger pdf (Page 107)

106

50QMA

N/B Maintenance

When the power button is pressed, nothing happens, no fan activity is heard and power indicator is not light up.

Main Voltage Map

+DVMAINADINPPOWER IN

PWR_VDDIN

PJ701

PF1 PL1

PL2

PD505

Discharge

PD502

PD503

BATT

PF501,PL506,PQ503

PU3,PL507,PL508,PD507

PQ506

Charge

Discharge

F4,U513

PQ501

P32

P28P32

P31

P32

8.1 No Power-2

J703

P32

+VDD5

Q50

+3V

+VDD3

U515

+VDD1.5+VDD3S

Q49 U11

+VDD3_RTC

D34,

P26

P26 P26 P26

P11

+VDD3_AVREF

P26

Q37

PF502,PL512

PL506,PU5

PU503,PU504

PU506,PU511

PU512

+CPU_CORE

P30

+KBC_CPUCORE

R711

P23

PU502,PL503

PR508

+3VS_P

P27

PU2

+3V

P25

JS505~

JS507

+3VS

U504,L509

L501

P26

+3VS_HDD_ANALOG

L564

P14

L562

P14

+1.8VS_HDD

+3VS_HDD

P14

+1394_AVCC

P19

+3VS_CLK

+1.8VS

P26

+3VS_TVDAC[A,B,C]

+3VS_ATVBG

L563

L531

L31

L32

L40,L33

L41

L42

PU501,PL502

PR527

+5VS_P +5V

JS501~

JS504

P25P27

+5VS

L503,U502

L504

P26

L49

+5VS_CDROM

P14

AMPVDD

L73

P22

+5VS_HDD

L64

P14

+2.5V

P26

+AVDDL

P15

L531

+2.5VS_CRTDAC

L39

+2.5VS_ALVDS

+2.5VS_TXLVDS

L37

+2.5VS_HV

L44

L35

+2.5VS

P26

Q12

+DVDD

P15

L533

PR42

PU12

PU509,PU510

PL516

+1.8V_P +1.8V

JS6,

JS515

P25P29

+DDR2_VREF

R606

R242

+0.9VS_P +0.9VS

JS517~

JS518

P25P29

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MiTAC 8050QMA Manuel de service Page 107

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