Power Supply - LG 50PS60 Training Manual

Standby 5V will not
be output if the
Power Button is off.
AC In
1
Stand
Not
By 5V Reg
Used
Stand
AC
By 5V
Det.
2
3
5V Det.
7
5V
Det.
AC Det.
If missing,
5V
set turns
Reg
off within
10 sec.
Other
Circuits
2
3.3V
Reg
Microprocessor
Reset
4
50PS60 POWER SUPPLY START UP SEQUENCE
50PS60 POWER SUPPLY START UP SEQUENCE
In Stand-By Primary side is 163V
In Run (Relay On) Primary side is 386V

POWER SUPPLY

(SMPS)
6
5V/12V
Regulators
17V
Reg
5V
M5V
12V
On
17V
Relay
8
On
14
6
9
17V Audio
12V Video
+5V HDMI EDID
And other input circuits
4
At point TV is in
Stand-By state. It is
Relay
Energy Star Compliant.
On
Less than 1 Watt
6
9
14
IC1
5
M5V
Reg
9
16
Vs
Reg
Vs
14
Va
Va
Reg
15
Va Vs
15 16
Vs
On
Y-SUS PWB
Va
5VFG
14
15 12
5V
Floating
Gnd
MAIN
PWB
15
STBY 5V
Power On
43
10
16
15
Va Vs
M5V M5V
10 15 16 10
Z-SUS PWB
17V
17V
11 11
12
Y DRIVE
Upper
13
X PWB X PWB
Left Center
15
Front IR
2
Remote
Board
Or Key
5
M5V
10
Control PWB
17V 17V 3.3V
11 13
Y DRIVE
Lower
13
X PWB
Right
15
Power Button
Off
On