LG 42LV5500 - T-CON (TFT DRIVE) SECTION

TFT-LCD Controller Board
T-CON (TFT DRIVE) SECTION
The
T
-CON is located at the bottom of the panel under the Stand Bracket.
12V is supplied to the T-CON Board from the Main Board via connector CN1
(easily measured at fuse F1). IC UC1 receives 24 bit LVDS video signals from the Main
B d t CN1 d CN2 hi h it i t TFT D i Si l It d li it t t
B
oar
d
a
t
CN1
an
d
CN2
w
hi
c
h
it
processes
i
n
t
o
TFT
D
r
i
ve
Si
gna
l
s.
It
d
e
li
vers
it
s ou
t
pu
t
signals through connectors CN4 and CN5 to control the LCD Panel.
US1, U3 and U6 are DC to DC converters which develops the Panels driver voltages.
16 74V
33V
5V d
28V Th
lt
b
dtth ibb t tt t
16
.
74V
,
3
.
3V
, -
5V
an
d
28V
.
Th
ese vo
lt
ages can
b
e rea
d
a
t
th
e r
ibb
on connec
t
or or a
t
t
es
t
locations on the board which are identified on the following pages.
Stand
Bracket
T-CON
May 2011 LCD TV 42LV5500
72