MiTAC 8050QMA Manuel de service télécharger pdf (Page 109)

108

50QMA

N/B Maintenance

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

8.1 No Power-4

+DVMAIN

ADINP

PC532

1000P

PC528

0.01µ

PR503

100K

PR502

470K

PQ501

AQ4407

LEARNING

PR505

+PWR_VDDIN

PD504

SBM1040

PQ502

2N7002

U13

Keyboard

BIOS

W83L950D

P23

SW_VDD3

PJ701

POWER IN

PL2

120Z/100M

PC2

0.01U

PL1

120Z/100M

2~4

PD501

RLZ24D

PC501

PF1

7A/24VDC

P31

JO2,JO1

SPARKGAP_6

PR1

RS+

OUT

RS-

PU1

PC3

PC1

0.01U

VCC

GND0

GND1

MAX4173FEUT-T

JO502

OPEN-SMT4

PR501

.01

P31

H8_I_LIMIT 76

I_LIMIT

PC502

0.01U

PR506

4.7K

PC520

0.01µ

PD502

SCS140P

LEARNING

+3V

+VDD3

C389

4.7µ

+PWR_VDDIN 



 +VDD3

+3V



 +VDD3

Q50

AO3413

Q47

DDTC144WCA

SW_VDD3

C327

0.1µ

R397

100K

Q37

AO3413

U513

NTC78L05

3216FF-1

+PWR_VDDIN

IN OUT

P26

C767

1µ

C324

10µ

+VDD5

R340

U515

AMS3107

INPUT OUTPUT

P26

2,4

C689

10µ

+VDD3_AVREF

PD505

SCS140P

MiTac Secret

Confidential Document

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MiTAC 8050QMA Manuel de service Page 109

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