User Guide

8081
8081
N/B Maintenance
N/B Maintenance
98
AC
Power
Battery
ADINP
DVMAIN
PWR_VDDIN
BATT
BAT_TEMP
BAT_VOLT
BAT_CLK
BAT_DATA
PJ1
PF1
PL2
PL1
PR1
PQ2
PD4
PD5
PD1
PF5
PL3
PL4
D508
R693
R699
PQ3
PQ4
Where from
power source problem
(first use AC to
power it)?
Check following parts and signals:
Parts: Signals:
Check following parts and signals:
Parts: Signals:
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
Is the
notebook connected
to power (either AC adaptor
or battery)?
Connect AC adaptor
or battery.
Replace the faulty AC
adaptor or Battery.
Power
OK?
No
Yes
No
Try another known good
battery or AC adapter.
Power
OK?
Yes
Try another known
good charger BD.
Is the
M/B and charger
BD connected
properly?
No
Replace the faulty
Charger BD.
Board-level
Troubleshooting
Replace
Motherboard
No
Connect AC adaptor
or battery.
Yes
Yes