4-2. 3IN1/Panel Backlight Test
CNL801 (LED Connector)
1
N.C
2
N.C
3
N.C
4
N.C
5
2-
6
2+
7
1-
8
1+
9
N.C
10
N.C
11
N.C
12
N.C
CNL801
LED Connector
*Only 55 inches
1.
Find LED+/LED- TP point in 3in1 board.
2.
Check LED voltage spec in 3in1 board.
3.
Using Multi-meter, measurement LED+/LED- TP Point.
4.
If Voltage is abnormal, replace 3in1 board.
5.
If Voltage is normal, replace panel.
4-3
4. Troubleshooting