Esquema De Circuito Power Supply - LG DV497H Manual De Servicio

2. ESQUEMA DE CIRCUITO POWER SUPPLY

TO POWER BOARD
XP1
5pin/2.5mm Imax=1000mA
1
2
G ND
3
+12VCC
4
G ND 50mA
5
+12V: +12V(+-10%)
3 LED/PCON
+5V: +5V(+-2.5%)
C7
0.1uF
M5V
D1
TR_B3
3 TR_B3
REG03
3 REG03
M5V
R1 0R/NC
Q1
L16 FB AXIAL
8550D FB1 500Z 0603
C3 C1
0.1uF 1uF
VCC3 R3
3.3K
USB_POWER 6
R4
4.7K
R5
Q2
BT3904
1K
R6 0R /NC +12V
Q3
8550D
R7
4.7K
R8 R9
22K 10K
RL205
R147
1/1W 3.3V for 8203R and peripherals
Q4
2SS8550D(EBC,1.5A,1W) VCC3
R11
EC3 RF3.3V
20K/1% C8 S e r v o
220uF/16V 0.1uF L2 FB500 L3
close to
R12 EC4 C10
100uF/16V 0.1uF 8203R 100uF/16V
12K/1%
GND
RFGND
GND
VVCC3
V i d e o
FB500
L7 R14
EC10 C18
100uF/16V 0.1uF 10uF/16V
GND
AVCC3
Audio
R16 2.2R L9
close to
EC12 C21 10uF/16V
100uF/16V 0.1uF 8203R
GND
5V for peripherals
P+5V
RFA5V
P+5V
EC1
C5 C4
220uF/16V 0.1uF
0.1uF/NC
GND
M5V
TR_B1
3 TR_B1
USB_VCC DVCC3
U S B Digital
FB500 L4 FB500
EC5 EC6
C9 C11
0.1uF 10uF/16V 0.1uF
REG01
REG01
3
GND GND
PLLVCC3
AD_VCC3
A D C PLL
10 L8 FB500
EC11
C19 C20
0.1uF 0.1uF
GND
GND
SPI_VCC3
SPI Flash
2R2
EC13
C22
0.1uF
GND
3-25 3-26
A+5V
R2 2.2R
C2
0.1uF
RFGND Power Bead > 2A, RAC@100 MHz
= 70 ohm, RDC(max)= 0.4 ohm
VCC5
L1 FB500
C6 EC2
0.1uF 100uF/16V GND R FGND GND
GND
R10
4.7/2W
Q5
2SS8550D(EBC,1.5A,1W)
1.2V for core of 8203r
drop 0.8v HAVCC
D3 IN4001 HDMI
2V L5 FB500
R13 EC8 C16 EC7 C12 C14 C15
3K 100uF/16V 0.1uF 22uF/16V 0.1uF 0.1uF 0.1uF
GND HGND
R15
4.7K/1%
VCC1.2
L6 FB500
GND
EC9 C17
220uF/16V 0.1uF
GND
HGND