P202 And P203 Backlight Driver Section Of Smps Association With Tps - LG 55LW5600 Troubleshooting Manual

P202 and P203 Backlight Driver Section of the SMPS Association with TPs
Tip: You can use the right side of R287 or R288 to check for the 63V.
Tip: Remember to use a 220Ω to ground on any of the "EL" Test Points to force an LED Block to turn on.
P203
Pin Label TP
1 LED+ C256+
2 n/c n/a
3 VC-1A EL62
4 VC-1B EL63
5 VC-1C EL64
6 VC-1D EL65
7 n/c n/a
8 VC-2A EL66
9 VC-2B EL67
10 VC-2C EL68
11 11 VC 2D VC-2D EL69 EL69
12 n/c n/a
13 LED+ C256+
WARNING: Do not simply "Ground" any of the EL Test Points (EL62~EL77) to turn on an WARNING: Do not simply Ground any of the EL Test Points (EL62~EL77) to turn on an
LED Block. The LED Block will be destroyed.
63V
P203
EL64
EL66
EL63
EL65
EL67
EL68
EL69
P202
1
EL62 EL76
EL74
EL77 EL75
July 201 1 LCD TV
58
1
P202
Pin Label
1 LED+
EL72
2 n/c
3 VC-3A
EL73
4 VC-3B
5 VC-3C
6 VC-3D
EL71
7 VC-4A
8 VC-4B
9 VC-4C
EL70
10 VC-4D
11 11 n/c n/c
12 LED+
55LW56000
TP
C256+
n/c
EL70
EL71
EL72
EL73
EL74
EL75
EL76
EL77
n/c n/c
C256+