Prestigio CAVALIERE 141 Technical & Service Manual page 98

Prestigio Cavaliere 141
8.1 No Power:
When the power button is pressed, nothing happens ,power indicator does not light up.
P4
+3V_P
PGUP
Note:
: Page 32 on circuit diagram.
P32
: Through by part PU501.
PU501
JO2
P32
P4
JO3 U1
+5V_P +S5V
PGUP
PU15
P32
JO508
+1.25V_P
P3
U501,L505
+VCC_USB_0
P3
U501,L504
+VCC_USB_1
P3
U502,L513
+VCC_USB_2
P3
U502,L512
+VCC_USB_3
P32
JO4,JO5 U5
+S3V
L538
MII_AVDD
L29
USBVDD
U14
+S1.8V
L31
P29
P17
+5V
IVDD_AUX
P10
P32
U502
DAC_VDD
+1.25V
P18
JS503
+5V_HDD
P18
JS504
+5V_CDROM
P20
R727
VA
L540 P21
RVDD/LVDD
P22
L540
CARD_VCC
P29
U504
+3V +CPU_VCCVID
L528
+VCLK_REF
P16
L532
+VCLK_Z
P17
L523
+VCLK_48
L529
P29
+VCLK_PCI
L521
+VCLK_AGP
L22
+VCLK_CPU
L527
+VCLK_SDRAM
L21
+VCLK_VDDA
L519
C1XAVDD
L520
C4XAVDD
L512
A4XAVDD
L513
A1XAVDD
L517
SDAVDD
L518
DDRAVDD
L516
Z1XAVDD
97
Technical Service Manual
P3
P9
L515
Z4XAVDD
P9
L514
DCLKAVDD
P9
L511
ECLKAVDD
P9
L508
TVPLL_VCC
P9
L509
TVPLL_VCC
P9
L5
VDDT
P9
L510
+VCH_DVDD
P9
L506
+LVDD4/5
P5
L503
+LVDD2
P5
L505
+LVDD0/1
P5
L507
+LPLL_VDD
P5
Q1
+3V_LCDVCC
P6
L535
SZ1XAVDD
P6
L534
SZ4XAVDD
P7
P7
P7
P7
P10
P10
P10
P10
P10
P10
P10
P10
P14
P15
P15