8050D N/B Maintenance

8.1 No Power

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

No power

 

 

 

 

AC

Check following parts and signals:

 

 

 

 

 

 

 

 

 

 

POWER

 

Parts:

Signals:

Is the

 

 

 

Document

PF1

ALWAYS

 

 

 

PL1

 

 

 

Connect

Secret

 

 

DVMAIN

Notebook connected

 

No

 

 

 

PL2

ADEN#

 

AC adaptor

 

 

 

to power (Either AC adaptor

 

 

 

 

 

 

 

 

PD702

 

or battery

 

 

 

BATT_DEAD

or battery)?

 

 

 

 

 

 

 

 

 

 

 

PQ701

 

 

 

 

 

 

 

 

 

Yes

Confidential

 

 

 

 

 

 

 

 

 

Please try another known good battery

 

 

Where

BATTERY

 

 

 

 

From Power Source

 

 

 

 

 

 

 

 

 

 

or AC adapter.

 

 

MiTacProblem(First use

 

 

 

 

 

 

 

 

AC to power it)

 

 

 

 

 

Yes

Please replace

 

 

Check following parts and signals:

Power

the faulty

 

 

 

 

 

Parts:

Signals:

OK?

 

AC adaptor or

 

 

 

 

 

 

 

J703

BATT

 

 

Battery.

 

 

 

 

 

 

 

 

PF702

 

NO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PQ6

 

PQ704

Board-level

PL704

Troubleshooting

PL705

 

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