I have a broken Dell 2405FPW. There is no sign of a backlight, an image with no backlight, and the lights on the front (power LED) do not illuminate. When plugged in there is a high pitched whine from the power supply. The caps are Elite and Lelon, but don't show any physical issue to me. I tried to measure the voltages that it gave to the logic board and the backlight board.
to Logic Board
Black: 0
?: 0
Red: 20
Orange: 0
Yellow: 0
Green: ~7-7.5
to Backlight board
Black: 0
Brown: 0
Red: 23-25
Orange: 23-25
Yellow: 0
Green: 0
Blue: 0
If any of those zeroes seem strange, I can remeasure. It's possible that I didn't quite make contact with the wire.
The capacitors on the power supply are as follows:
450v 120uf PW(M) Elite
6x 35v 470uf EL(M) Elite
2x 35v 47uf Lelon RGA A523(M)
1x 100v 1uf Lelon RGA A523(M)
1x 35v 220uf Lelon RGA A523(M)
to Logic Board
Black: 0
?: 0
Red: 20
Orange: 0
Yellow: 0
Green: ~7-7.5
to Backlight board
Black: 0
Brown: 0
Red: 23-25
Orange: 23-25
Yellow: 0
Green: 0
Blue: 0
If any of those zeroes seem strange, I can remeasure. It's possible that I didn't quite make contact with the wire.
The capacitors on the power supply are as follows:
450v 120uf PW(M) Elite
6x 35v 470uf EL(M) Elite
2x 35v 47uf Lelon RGA A523(M)
1x 100v 1uf Lelon RGA A523(M)
1x 35v 220uf Lelon RGA A523(M)
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