42LV5500 T-CON (TFT Drive) with (Shield Removed) Components Identified
Warning:
T-Con Board under shield. Be sure to reinsert screws before operating set with shield removed.
UC1
U5
F1 3A/125V
L2
L3
Q12
1
2
3
2
1
2
3
2
D6
D3
D2
FL1
FL2
D1
L1
(3.32V)
US1
12V
CN5
CN4
CN1
CN2
5) Gnd
6) Gnd
7) Gnd
8) Gnd
U5
TO TFT MODULE
28V
Pin 9 VGHR
-5V
Pin 10 VGHF
28V
Pin 11 VGHODD
28V
Pin 12 VGHEVEN
-5V
Pin 13 VGL_I
-5V
Pin 14 VST
Pin 20,21 P-VDD
28V
Pin 52 VGHR
-5V
Pin 51 VGHF
28V
Pin 50 VGHODD
28V
Pin 49 VGHEVEN
-5V
Pin 48 VGL_I
-5V
Pin 47 VST
Pin 40,41 P-VDD
May 2011 LCD-DV 42LV5500
74
4) 3.31V
3) 3.3V
2) 2.95V
1) 3.3V
16.74V
16.74V
HVDD
U6
U3
VGHR VG
H
F
VGHODD VGHEV
E
N
VGLI VST
VGL_I -5V
3.3V
Pin 35 VCC
3.3V
Pin 25 VCC
D7
12
V
PANEL TEST
To run the T-CON “Panel Test”,
remove the LVDS cables. Jump 12V
to the 12V fuse.
Jump VCC 3.3V to pin 44 on CN1.
White, Red, Blue, Green and Black
patterns show on screen.
Panel
Test
TP 44
Pin 18
1) 28.9V
2) 28.2V
3) 30.4V
3) Gnd
2) 1.6V
1) 0.6V
LVDS
LVDS
To Main
Gnd
Gnd
Gnd
(11.76V)
Gnd
Gnd
Gnd
C102
C101
C105 C106
VGHODD 28V
VGHF -5V
VGHR 28V
VST -5V
VGHEVEN 28V
P-VDD 16V
VDD 16.74V
VDD 16.74V
(18.3V)
(11.76V)
(3.35V)
(30V)
(25.9V)
(11.76V)
12V
VCC 3.3V
US1
Q11
Pin 15
Pin 13
Pin 12
Pin 11
Pin 10
Pins 7-8