No Power - Prestigio CAVALIERE 141 Technical & Service Manual

Prestigio Cavaliere 141

8.1 No Power:

When the power button is pressed, nothing happens ,power indicator does not light up.
PD10,PL5,PQ2
PL501,PU2,PU8
(Charge)
PJ501
PF2,PL3,PL4
P1 P1
PQ8,PQ9
PD13,PD14,PD15
PR19
Power In ADINP
PD12
P3
PWR_VDDIN
J1
J3
F4,U15
U15 Q21
P1
Battery
J501
PQ13-PQ16
(Discharge)
J1 J3
P1
D/VMAIN
PD16
(Discharge)
8677 DD BOARD
L30
P26
P28
L28
H8_AVREF H8_VDDA
P28
P28
Q18
VDD5
VDD5S
Q23
P28
U18
+S5V
VDD3
Main Voltage Map
P31
PL1,PL2,PU501,PU1~PU10
+CPU_CORE
PU502,PU13,PU14
PU502,PU11
P32
P30
JO6
PU12
+1.8V
+1.8V_P
P4
PU9,PU4,PU6
+3V_P
PGDN
P4
PU9,PU3,PU5
PGDN
+5V_P
PU9,PU3,PU5
P4
JO1
PU1,PT501
+12V_P
96
Technical Service Manual
Note:
: Page 12 on circuit diagram.
P12
: Through by part PU502.
PU502
P30
P32
JO8,JO9
L526
+2.5V_P
+2.5V_DDR
L525
R79
P7
R80
ZVREF
R94
P7
R97
L13
VDDZCMP
R95
P7
L9
R96
DACAVDD1
R647
P15
R132
R648
SZVREF
R130
P15
L27
R125
SVDDZCMP
R120
P15
L539
IDEAVDD
P29
P32
Q4
+12V
+S12V
P9
+VCLK_DDR
P9
+VCLK_DDRA
P6
DDRVREFA
P6
DDRVREFB
P11
+VREF_DDR
P12
+VREF_DIMM