MiTAC 7521 PLUS/N - Page 105

104
7521
7521
Plus / N N/B MAINTENANCE
Plus / N N/B MAINTENANCE
POWER IN
P25
PJ501
PL501, PF501
PD1
PWR_VDDIN
P25
VDD5
P23
F2, U23 Q22
+S5V
Q21
VDD5S
P23
P23
PU2
ADINP
P26
P25
PD3, PD4,
PL3
D/VMAIN
VMAIN
P29
PQ502
PQ503,PU10
+S3V_P
P27
JO3
+S3V
P29
PQ10
S1.8V
P29
PQ504
+3V
P29
JO4
+S1.8V
P29
PU14,PU5
1.8V
P28
PQ13
2.5V
P29
JO5
+2.5V
P29
+S12V
PU10,PQ7,PQ9
PL503,PU501
P27
PU10,PQ7
PQ9,PL503
+S5V_P
P27
PQ3
+5V
P29
J02
+S5V
P29
PQ501
+12V
P29
PL12,PU18,PU12,PU19,
PU20,PU22,PU23,PL11
P30
VCC_CORD
8.1 NO POWER:
When the power button is pressed, nothing happens ,power indicator does not light up.
PU14,PU4
1.5V
P28
JO11
+1.8V
P29
P25
PD1, PD2,
PL3
:Through by parts PD1,PD2,PL3.
L22
ICVCC
P5
L19
LVDSVCC
P5
L7
PLLVCC
P5
L527
DACAVDDB
P5
L526,R577
DCLKAVDD
P5
L525,R580
ECLKAVDD
P5
JS11
+5VS_FDD
P13
JS10
+5VS_HDD
P13
JS503
+5VS_CDROM
P13
Note:
:Page 25 on circuit diagram.