Hi folks,
This is my first post. Richard over at YT Learn Electronics Repair recommended this forum in one of his videos. I am learning electronic repair now in my thirties.
I have an LG Flatron W2353V that doesn't power on. It just stopped working from one day to the next. No lights, no nothing, and I don't know how to test the keypad since it doesn't have buttons, just a touch keypad. I took out the power supply board, and am attaching pictures. Some of the capacitors are bulged. I have a multimeter and have tested voltage at several places:
Capacitors:
C101: 309V (That's the big one)
C203: 24.2V
C204: 5.1V
C205: 5.1V
C207: 24.1V
C212: 5.1V
C301: 24.1V
Plugs:
The ribbon plug has voltages as labeled: 5V, 22V and ground. Only, the 22V pins mark about 24V.
The other two-wire white plugs (P401, P402, P403 and P404) don't mark any voltage at all across their pins.
And that is as far as I know what to measure. Is this board fine, and the problem is in the control board? or is there something else that I need to measure to diagnose here?
This is my first post. Richard over at YT Learn Electronics Repair recommended this forum in one of his videos. I am learning electronic repair now in my thirties.
I have an LG Flatron W2353V that doesn't power on. It just stopped working from one day to the next. No lights, no nothing, and I don't know how to test the keypad since it doesn't have buttons, just a touch keypad. I took out the power supply board, and am attaching pictures. Some of the capacitors are bulged. I have a multimeter and have tested voltage at several places:
Capacitors:
C101: 309V (That's the big one)
C203: 24.2V
C204: 5.1V
C205: 5.1V
C207: 24.1V
C212: 5.1V
C301: 24.1V
Plugs:
The ribbon plug has voltages as labeled: 5V, 22V and ground. Only, the 22V pins mark about 24V.
The other two-wire white plugs (P401, P402, P403 and P404) don't mark any voltage at all across their pins.
And that is as far as I know what to measure. Is this board fine, and the problem is in the control board? or is there something else that I need to measure to diagnose here?
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