Prestigio CAVALIERE 141 Technical & Service Manual page 100

Prestigio Cavaliere 141
8.1 No Power:
When the power button is pressed, nothing happens ,power indicator does not light up.
No power
Is the
Notebook connected
to power (Either AC adaptor
or battery)?
Yes
Yes
Try another known good battery,charge BD
or AC adapter.
Power
OK?
No
Replace
Motherboard
Connect
No No
AC adaptor
or battery
Replace the faulty
Yes
AC adaptor ,
charge BD or
Battery.
Where
From Power Source
Problem(First use
AC to power it)
Board-level
Troubleshooting
99
Technical Service Manual
Check following parts and signals:
PARTS:
Charge BD
AC
PJ501
PQ7~9
PL3
PQ13~16
PL4
PR30
PD5
PR23
PD6
PR44
PF2
PR45
PU10
Check following parts and signals:
PARTS:
Charge BD
Battery
PF1 PR47
PC2 PR48
PL1 PR41
PL2
PR38
PR5 PQ12
PR4 PC52
PC1 PC50
PU10
PC60
SIGNAL:
M/B
ADINP
D/VMAIN
U13
VDD5S
U15
Q26 D/ADEN#
D501 D/LEARNING
PWR_VDDIN
R670
H8_AVREF
F5
D8 SW_VDD5
Q21~23 SW_VDD5#
SIGNAL:
M/B
D/VMAIN
D/BATT_V
D/BATT_T
U13
D/BATT_DEAD
Q26
D501
R670