Power Supply Circuit Diagram - LG BD390 Service Manual

7. POWER SUPPLY CIRCUIT DIAGRAM

CN701
3.3V
1
3.3V 2
GND
3
12V_AUDIO 4
12V_LOADER
5
GND 6
5V_LOADER
7
4:K4;F5
P_CON P_CON_3V3_LOADER
8
GND 9
GND
10
5.3VA
11
5.3VA
12
-29VA
GND 13
DGND FD-
-29VA
14
FD+
FD- 15
FD+ 16
DGND
DGND DGND
5:F3 PSU_ON/GPIO_13
VCC_3V3
CA710
220UF/16V
DGND
VCC_12V_AUDIO
VCC_5.6V_L
C716
CA718
0.1uF
CA720 C779
220UF/16V
22uF
100UF/16V
DGND
DGND VCC_12V_LOADER
DGND
CA705
220UF/16V
R709
C702
1uF OPEN
DGND
VCC_5V_LOADER DGND
R725
P_CON_1V8
CA709
0
4:K4;H3
220UF/16V
R726
P_CON_1V2
4:K5 OPEN
DGND
VCC_5.6V_L
R704
100K
CA708
DGND
CA704
220UF/16V
220UF/16V
DGND
VCC_3V3
R729
4.7k
3-89
[5.6VA TO 1.2V]
BCM7601 (max 3.3A@1.2V)
IC706
MP2380DN
L721
8 1
IN SW
SFCB1047-5R6
R710 C704
7 EN/SYNC 2
BST
47
6 3 0.1uF
PG CA723
VCC C777 C778
R708
5 4
22uF 22uF
FB GND 220UF/16V
42.2k(1%)
C764
R705
80.6k(1%)
100pF
DGND
DGND DGND
*Must be placed Inductor L721
*Must be placed same plane as L721
C783
D702
RB081L-20(25V/5A)
1000pF
DGND
P_CON_3V3_LOADER
4:K4;B3
3-90
[5.6VA TO 1.8V]
7601& DDR2 1.8V max 2A
IC704
SC4521SETRT
C736
220nF
VCC_5.6V_L
1 8
SS
D703 BST
1SS355
2 7
IN COMP
C780 CA727 3 6
C725 SW FB
0.1uF
22uF
100UF/16V
4 5
EN
GND
VCC_1V2
DGND
DGND
L719
C712
5.6uH/3A
0.1uF
R720
30K(1%)
D701
R716
SMAB34
24K(1%)
DGND
DGND
[5.6VA TO 5V]
AUDIO/VIDEO POWER (max 1A@5V)
IC702 KIA78R05F
VCC_5.6V_L
VCC_5V_AV
DGND
L722
C703
CA702
4.7UH
22uF/16V
0.1uF
C711
R719
CA726
100K
0.1uF
100UF/16V
DGND
DGND
DGND
7.POWER Supply
C738
0.1uF
R724
C735 15nF
4.7k
C762
DGND
330pF
P_CON_1V8
4:K4;D3
DGND
VCC_1V8
CA725
C781 C782 C757 CA714
22uF 22uF
220UF/16V
0.1uF
100uF/6.3V
DGND
*Must be placed Inductor L719
*Must be placed same plane as L719
2009.2.16