No Power - NEC Barracuda Service Manual

8.1 No Power:

When the power button is pressed, nothing happens ,power indicator does not light up.
P9
VCC_P+
P13
J20
1
4
2
3
VCC_P+
C250
C249
JACK-4P
220P
10U
GND
VCC_P+
5V
1.7A
Barracuda PDA Maintenance
M/B Board
Q13,U48
P13
U25
Q43,D15
L13
D34,Q43
VCC_IN
U29
Q49
Q34
Q42
P15
U45,D7
L17
5V_ON
U32
L18 D10
D9
Main Voltage Map
Note:
P14
PF1
P14
VCC_CORE
P15 P11
Q17
VCC_3VSB
P15
VCC_5V
P11
P15
VCC_-15V
P15
VCC_+15V
: Page 14 on circuit diagram.
: Through by part PF1.
SA_PWR_EN#
Q16
Q5
P13
LCD_PWR_ON#
VCC_LCD
VCC3
Q6,L21
P13
AUD_PWR_ON#
VCC_AUD
Q18
P11
IR_EN#
IRDA_3V
119