LG 42LG60 Manual page 24

In Stand-By Primary
Side is 178V
In Run it is 380V
AC In
1
AC Det
Circuit
AC
Det
At point 4 TV is in
Stand-By state.
Energy Star compliant.
Less than 1 Watt
2
3.3V Reg
for Micon
+5V
General
2
Releases Reset
Microprocessor
Main Board
Reset Circuit
TURN ON COMMANDS FROM MAIN PWB
TURN ON COMMANDS FROM MAIN PWB
POWER SUPPLY (SMPS)
Bridge
Rectifyer
6
12V/24V
Stand
Regulators
By 5V Reg
Stand
12V 16V
By 5V
PWR
3 6 6
12V Video
Processing
Other
3.3V
Regs
Other Circuits
5V Reg
6
MAIN PWB
6
8
4
Microprocessor
7
IC407
3.3V
42LG60 POWER SUPPLY
42LG60 POWER SUPPLY
160V/380V
Regulators
Inverter
On
DC Up, Backlight brightness Up
11
Inv
A-DIM
P-DIM
On
Fixed
6 8
16V
Audio
Video
Processing
Video
BCM IC100
12V
LVDS
12V
Inv On/Off
LVDS Panel Control
PG 24
BALLAST SECTION
6
Driver FETs
Drive Sig
Inverter On
8
Manipulates
Starts the Ballast
Backlights
Drive Signal
P-DIM
Cust Menu for Backlight
Picture Content
Intelligent Sensor feedback
LVDS LVDS
Cables Cables
Tru-Motion
10
Video
12V 7
Video Mute
10
Is Released
7
Ft Control
5
1.2Kv
Ballast
45Khz
1.2Kv
Backlights
turn On
9
11
11
TFT Controler
To
Section
12V
Panel
LD1
7
(Blue LED)
Blue LED lights to assist
Backlight Lamp Firing
Then goes off.
Remote or Key
Power On