1
1
2
2
3
3
4
4
5
5
6
6
A
A
B
B
C
C
D
D
SYSTEM BOARD POWER CONNECTOR
SYSTEM
REGULATOR
L1117: FOR ALL
SYSTEM USED
+12V
GND
+5V
GND
78M05CDT TO-92
GND
12V
5V
78M05
78M05CDT SOT-89
GND
5V
GND
12V
+3V3/GND
+2V5
J15 ,5PIN
+3V3
GND
L3=FB,L21=0.1P
L3=OPEN,L21=FB
NOTE: J15 ,5PIN POWER SELECT
NOTE:If power p2V5 then don't mount Q8
NOTE:If power p3V3 then don't mount Q9
TO POWER+AV BOARD CN303
DECODER POWER SUPPLY
+3V3 POWER SELECT
VD33A
PLL33V
VD33D
RF33V
RF50V
5V
VD25A
VD25PLL
VD25D
MVCC
MGND
VD33D
5V
VD25D
TV-GND
+12V
5V
5V
VD33D
AD5V
12V
A-GND
VD25D
VD33D
+
TC22
100U/10V
+
TC15
100U/10V
BC62
0.1U
U12
78M05CDT
1
2
3
OUT
GND
IN
BC55
0.1U
J15
POWER CON (6PIN/2.54mm)
1
2
3
4
5
6
+
TC26
100U/10V
BC66
0.1U
+
TC18
220U/10V
+
TC25
100U/16V
L15
FB (0805)
+
TC19
100U/10V
BC59
0.1U
R97
3.3 (0805)
BC58
0.1U
L17
FB (0805)
+
TC16
100U/10V
L18
1UH (0805)
+
TC23
100U/10V
BC56
0.1U
D7
OPEN
+
TC17
100U/10V
Q8
L1117-2.5V / 1A ( TO252 )
3
2
1
IN
OUT
GND
L16
FB (0805)
BC57
0.1U
BC63
0.1U
L14
FB (0805)
BC64
0.1U
+
TC21
100U/10V
BC68
0.1U
BC42
0.1U
BC61
0.1U
Q9
L1117-3.3V /1A (TO252)
3
2
1
IN
OUT
GND
R98
3.3 (0805)
L19
FB (0805)
+
TC20
100U/10V
BC65
0.1U
L3
FB (0805)
+
TC29
100U/10V
BC60
0.1U
L21
L
D6
1N4002
2
1
BC67
0.1U
L20
FB (0805)
6-6
(For information only)
6-6