Hi,
I have a LG 55LF5700_UA LED tv
The standby light is on, I can see the picture with the flashlight test, and there is no back light. I test the standby power at the power board and there is no power. The 2 Led+ test points are only showing 30.3 V.
I can not find schismatics for this board but is it possible that there is a separate ground for the standby voltage? Thanks
Power Supply Board ((X)PLTVEW401XAT9) Voltages:
1. DIM: 2.33
2. O/F: 3.34
3.PS: 3.36
ON
4.NC 0.00
5. GND
6. GND
7. GND
8. GND
9. 12v_A: 11.96
10. 12V_A: 11.96
11. 12V: 11.95
12. 12v 11.95
13. 12v 11.95
14. 12v 11.95
15. 5v 0.00
16. 5v 0.00
LED Voltage
+Led 1: 33.3V
+Led 2: 33.3V
I have a LG 55LF5700_UA LED tv
The standby light is on, I can see the picture with the flashlight test, and there is no back light. I test the standby power at the power board and there is no power. The 2 Led+ test points are only showing 30.3 V.
I can not find schismatics for this board but is it possible that there is a separate ground for the standby voltage? Thanks
Power Supply Board ((X)PLTVEW401XAT9) Voltages:
1. DIM: 2.33
2. O/F: 3.34
3.PS: 3.36
ON
4.NC 0.00
5. GND
6. GND
7. GND
8. GND
9. 12v_A: 11.96
10. 12V_A: 11.96
11. 12V: 11.95
12. 12v 11.95
13. 12v 11.95
14. 12v 11.95
15. 5v 0.00
16. 5v 0.00
LED Voltage
+Led 1: 33.3V
+Led 2: 33.3V
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