LG 42LV5500 - Smart Share Functionality

Continue if the 1
st
test was OK.
Leave original jumper in place.
Power Supply Board Backlights Test 2
Leave
original
jumper
in
place.
(3) Add another jumper between (STBY_3.5V)
pin 9, 10, 11 or 12 and Pin 18 (DRV_ON).
(4) Apply AC Power. Simulating a Power and
Backlight On command.
Backlights Normal:
)If l th b kli ht h ldt
a
)
If
norma
l
,
th
e
b
ac
kli
g
ht
s s
h
ou
ld
t
urn on.
SMPS OK, Inverter OK.
Backlights Abnormal:
a) Recheck all connections
a)
Recheck
all
connections
.
b) Confirm the DRV_ON line pulling up to at least 3V.
c) Check the connections to the Panel.
If the DRV On command is
p
ullin
g
u
p
to 3V and the 45V is bein
g
g
enerated _
pgp gg
from C256 + leg, see the Inverter Section of the Power Supply for additional checks.
Note: If either P202 or P203 is disconnected, the backlights will come on,
The Error line will go high, then the backlights shut off in 4~6 seconds.
Pin 1 is the
Brown Wire
May 2011 LCD TV 42LV5500
46
REMOVE AC POWER:
Brown
Wire