LG Electronics WD-1042F(H)(B), WD-1041(3)F(H)(B) service manual WD-80340WFH/WD-102415WFH/WD-1042FH

■WD-803(4)0(W)(F)(H)/WD-102(4)1(5)W(F)(H)/WD-1042F(H)

CAUTION

1.Be careful of electric shock or disconnecting the parts while troubleshooting.

2.First of all, check the connection of each part terminal with wiring diagram.

3.Voltage between each terminal is AC 220-240V while applying an electric current. (except secondary part of the transformer and sensors)

NO POWER

2	1
PWB ASSEMBLY (POWER)

When measuring the voltage of the outlet, is the voltage AC 220-240V?

YES

When measuring the voltage of blue connector of the PWB assembly (Power), is the voltage AC 220-240V?

YES

NO

NO

Check the fuse?

Replace PWB assembly (Power).

3

Is connector disconnected or

or is the contact bad or cut?

NO

Is wire of the PWB assembly (Display) disconnected?

YES

Replace PWB assembly (Display). (6871EC2001A)

YES

NO

Reconnect and repair connector.

Replace PWB assembly (Main).

30