Service manual

10.10. POWER DC DC
B
C
E
10 Power DC-DC
3_3VA
2_5V
2_5VM
12VIN
+3.3V
STB_5V
AV_8V
5VD
V33
V33
PWRON
POWER_ON
ON_PBACK
IADJ
POWER_ON
ON_PBACK P5
PWRONP5
PHDPWMOP2
POWER_EN
P5
2_5VM
2_5V
V33
AV_8V
5VD
V33 3_3VA
5VD
5VD
12VIN
GNDP
GNDP
GNDP
5VD
GNDP
12VIN
5VD
5VD
GNDP
STB_5V
GNDP
5VD
+
C728
NC(10U/50V)
L187
NC(R201/0805)
C731
NC(0.1U)
I136
AP9435M
1 8
2 7
3 6
4 5
SD
SD
SD
GD
C723
0.1U
C725
47uf/16V
C724
47u/16V
R618
NC
R617 47K
+
C720
100U/16V
R201/0805L183
+
C730
100U/16V
Q115
MMBT3904
1
2 3
C729
0.1U
OUT
ADJ
IN
I140
AP1084K33
+3.3V Regulator TO-263
3
2
1
4
+
C726
100U/16V
L188
R80/0805
C721
0.1U
C712
0.1U
R622 2.2K
C716
0.1U
Q118
MMBT3904
1
2 3
+
C713
100U/16V
R623
4K7
ADJ
IN
OUT
I137
LM7808/TO252
3
2
1
4
+
C719
1000uF/16V/LowESR
R624
0
R619
4K7
C736
330p
Q116
MMBT3904
1
2 3
R621 4K7
R620 4K7
R629 NC
+
C737
NC(10U/50V)
L189
R201/0805
L185
R201/0805
+
C734
10U/50V
L191
R201/0805
C735
0.1U
ADJ
OUT
IN
I141
AP1117D25A
SOT223
3
2
1
4
L190
R201/0805
R628
NC
+
C733
100U/16V
R616
1K
P118
CON_ 2.5mm_12
1
2
3
4
5
6
7
8
9
10
11
12
C722
0.1U
C715
0.1U
+
C714
1000uF/16V/LowESR
+
C738
2.2U/50V
L182
R80/0805
ADJ
OUT
IN
I139
NC(AP1117D25A)
SOT223
3
2
1
4
L186
NC(R201/0805)
+
C727
NC(100U/16V)
3_3VA P2
2_5V P2
2_5VM P2,3
12VIN P5,9,10
STB_5V P4,6,7,8
5VD P1,2,5,8,10
AV_8V P8
V33 P2
58
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