LG 50PT200 User Manual

WARNING: Remove AC when adding or removing any jumper, plug or resistor.
Power Supply Static Test (Forcing on the SMPS in stages)Power Supply Static Test (Forcing on the SMPS in stages)
TEST CONDITIONS:
Connector going to the Y-SUS P811 is disconnected.
P500 on the Main board disconnected (coming in on P813).
Use the holes on the connector P500 (Main Board side) to insert the
resistors and jumper lead.
Connect (2) 100 Watt light bulbs in series between VS and Ground
Connect
(2)
100
Watt
light
bulbs
in
series
between
VS
and
Ground
.
When the supply is operational in its normal state the Auto Ground line at Pin
18 of P813 is held at ground by the Main Board.
This Power Supply can be powered on sequentially to test the Controller
Chip IC701 operational capabilities and for troubleshooting purposes.
Bdi ti
P500
i 18 i d T t th SMPS t th l
B
y
di
sconnec
ti
ng
P500
, p
i
n
18
i
s opene
d
.
T
o re
t
urn
th
e
SMPS
t
o
th
e norma
l
state for this test procedure, this pin must be grounded.
(See first step A below).
Note: Leave previous installed 100Ω resistor in place
when adding the next resistor.
(A) Ground the Auto Gnd Line (Pin 18) will allow the supply to be
powered up one section at a time.
(B) Add a 100Ω ¼ watt resistor from 5V Standby to RL_ON and the 17V
and 5V Run Lines on P813 will become active Also AC
-
Det (4 06V)
and
5V
Run
Lines
on
P813
will
become
active
.
Also
AC
-
Det
(4
.
06V)
and Error_Det (4.1V) become active (Not Used).
(C) Add a 100Ω ¼ watt resistor from any 5V line to M_ON to make the
(Monitor) M5V, VS and VA lines operational.
P811
(VS pins 1 and 2) and (VA pins
6)
May 2011 50PV450 Plasma
52
P811
(VS
pins
1
and
2)
and
(VA
pins
6)
.
P811 (M5V pin 7)

LG 50PT200 Specifications

General

Brand	LG
Model	50PT200
Category	Plasma TV
Language	English