Azur 752BD
Service Manual
11
3.2.4 .Main board power supply circuit
3.2.4.1 Block diagram of voltage stabilizing circuit, shown in figure 3.2.2.1:
3.2.4.1.1
主 板 供 电 系 统 框 图
DC-
DC
TP
S
54325
PW
P
R
U
1
P
O
W
E
R
S
UP
P
LY
1.1V
1.2V
1.5V
3.3
V
U1
5
M
CU
W
T61P
80
6
A
P
1117
E
L
-A
DJ
DC
-DC
TP
S
543
25
P
W
P
R
U3
DC
-DC
TP
S
543
25
P
W
P
R
U8
DC-
DC
TP
S
54325
P
W
P
R
U7
3.3V
_M
V
L
12V
V
1
A
O
4468
P
W
R_E
N
1
88
DE
2755
+5V
_S
TB
+15V
_IN
V
11
A
O
4468
S
TB
Y
_M
CU
S
il129
2
V
CC
P
W
R_
E
N3
US
B
P
owe
r
u2
4u14u2
7
P
ane
l
boa
rd
HDM
ICE
C
IR-
IN
U5
TP
S
62203
D
B
V
T
RS
23
2
U36
U
2
TP
IC2050
LO
A
D
ER
U
26
B
A
J2DDO W
H
FP
U
30
B
A
J2DDO W
HF
P
8V
+5V
_S
TB
+5V
_S
TB
VC
C#
P
W
R_E
N2
3.3V
_S
TB
M
T8580& SIL1292
M
T8580& DDRIII
M
T8580& FLA
S
H
S
IL1292
V
4/
Q
7
V
8/Q
29
Q
30
1.5
V
_M
V
L#
P
W
R_E
N2
P
W
R_E
N4
1.8V
_M
V
L#
P
A
NE
L
IR KE
Y
3.2.4 .1 Block diagram of power supply system of main board
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