P202 / P203 Power Supply Connector Voltage And Diode Check - LG 55LW5600 Troubleshooting Manual

P202 / P203 Power Supply Connector Voltage and Diode Check

P202 White Plug "SMPS Board" To "Panel LEDs"
Pin Label TP
1 LED+ C256+
2 n/c n/c
3 VC-3A EL70
4 4 VC-3B VC 3B EL71 EL71
5 VC-3C EL72
6 VC-3D EL73
7 VC-4A EL74
8 8 VC 4B VC-4B EL75 EL75
9 VC-4C EL76
10 VC-4D EL77
11 n/c n/c
12 LED+ C256+
*White to Black screen
63V
*The drive signal changes due to the brightness level of the
b backlights. Low indicates "Bright". High indicates "Dim".
Diode Mode values taken with all Connectors Removed
Run Diode Check
63V OL
n/c OL
*1.59V~18V OL
*1 59V~18V 1.59V~18V OL OL
*1.59V~18V OL
*1.59V~18V OL
*1.59V~18V OL
*1 59V 18V *1.59V~18V OL OL
*1.59V~18V OL
*1.59V~18V OL
n/c OL
63V OL
P203
1 1
kli ht L i di t
P203 Black Plug "SMPS Board" To "Panel LEDs"
Pin Label
1 LED+
2 n/c
3 VC-1A
4 4 VC-1B VC 1B
5 VC-1C
6 VC-1D
7 n/c
8 8 VC-2A VC 2A
9 VC-2B
10 VC-2C
11 VC-2D
12 12 n/c /
13 LED+
P202
"B i ht" Hi h i di t
59
TP Run
C256+ 63V
n/a n/c
EL62 *1.59V~18V
EL63 EL63 *1 59V~18V 1.59V 18V
EL64 *1.59V~18V
EL65 *1.59V~18V
n/a n/c
EL66 EL66 *1.59V~18V *1 59V 18V
EL67 *1.59V~18V
EL68 *1.59V~18V
EL69 *1.59V~18V
n/a / n/c /
C256+ 63V
*White to Black screen
1 1
"Di "
July 201 1 LCD TV
Diode Check
OL
OL
OL
OL OL
OL
OL
OL
OL OL
OL
OL
OL
OL OL
OL
55LW56000