MiTAC 8355 User Manual

125

Where

From Power Source

Problem(First use

AC to power it)

Check following parts and signals:

PARTS:                               SIGNAL:             

Board-level

Troubleshooting

Replace

Motherboard

No power

Connect 

AC adaptor

or battery

Replace the faulty

AC adaptor , or 

Battery.

Power

OK?

No

Yes

No

No

Try another known good battery 

or AC adapter.

Yes

Yes

AC

Battery

Is the

Notebook connected

to power (Either AC adaptor

or battery)?

Check following parts and signals:

PARTS:                              SIGNAL:             

ADINP
D/VMAIN
VDD5S
ADEN#
LEARNING
+VMAIN_2951
VDD5_SW
VDD5_SW#
I_DISCHG
I_CHG

D/VMAIN
BAT_V
BAT_T
BAT_C
BAT_D
BATT_DEAD

PJ501
PF1
PL1
PL2
PL3
PC10
PC20
PD4
PU501
PR501

PC501
PQ1-5
PQ10
PQ11
PR1-7
PD1
PD3
PD5
PR9
PR10

PU504
H8
PR29
PR30
PC64
PC65
PR538
PR539
PC29
PC567

PJ502
PF502
PC551
PL7-9
PC63
PR534
PR533
PC543
H8
PR565
PR566

F503
U508
D22
D24
Q32
Q513
Q517
R220
C314
C322

PU504
PU10
PR41-44
PQ15
PC79
PC76
PR546
PR547
PC553
PR65