Electronics > Repair
Dell 2405FPW Monitor
IntruderMan:
Hi all I'm new the forum, but I have a lcd monitor that powers on but no display,it has 5 inputs,when you plug a source into any of the inputs the back lights come on but no display, unplug it back lights go out,any help would be appreciated,also looked at all capacitors, no sign of leakage or puffed up.
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cnqhdszq:
check Voltage of the power supply board ,check all electrolytic capacitors ,I think the most reasons are use ESR meter or LCR to check out cap .
testian:
So your backlight is working and the screen is dead. Not even the on screen display?
Some values you can measure: https://www.eevblog.com/forum/repair/dell-2405fpw-psu/msg812579/#msg812579
The_Penguin:
Definitely check the power supply outputs. Also, for backlights on but no video (especially if the screen is white)
check the fuse on the Tcon board.
mzacharias:
Also check for any small surface-mounted fuses on the t-con board (board may be integrated with panel).
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