LG LRG3061ST Service Manual page 49

CHECKING FLOW CHART BY FAILURE
No display (No power)
1
Check the LVT coil resistance
CN01
PIN No. of CN01
1pin ~ 3pin
approximately
138 (Ω)
Normal?
2
Yes
Check the voltage of Power PCB
- CN13(pin 1 and pin 3, pin1 and pin 4)
1 Pin
PIN No. of CN11
PIN1(GND) ~ PIN3 approximately
9V
PIN1(GND) ~ PIN4 approximately
4.5V ~ 5.5V
Resistance
No
Power On
Voltage
4 Pin
10-3
Replace the power PCB
END