Introduzione
This monitor stopped turning on.
Cosa ti serve
-
-
The u3014 monitor opens the same as most other recent Dell monitors.
-
First remove the stand.
-
Remove the bezel. This can be done by hand and a plastic knife. Approaching the screen from behind, peel the bezel with your fingers (photo).
-
The rest follows quite easily, but in the corners you might need to insert a blade or similar to pry open the clips.
-
When removing the bezel, be careful with the control panel (stuck in place with glue, covered with glued-on strip) and power-button (2 screws).
-
-
-
-
Remove the connectors. Black cable to backlight (push clip and pull). Two multi-color cables to LCD (push in the sides and pull). Power and control ribbon (pull). USB hub power (push clip and pull). USB ribbon (lift flap and remove).
-
The frame with PCB is held in place just by metal tape.
-
The USB hub is completely loose.
-
-
-
To solve power on problems, inspect the board. In my case there was a cold solder joint that actually showed a little spark when plugged in (photo Q816). Re-soldering fixed it. Your case might be harder to find and fix.
-
Many repair guides talk about replacing all capacitors rather aimlessly. In this monitor they used Nichico caps which are very reliable. So that is an unlikely fix.
-
Be extremely careful fixing these switching power supplies, even more so in Europe where one has 230V. Discharge capacitors etc.
-
If you liked this guide, contribute your own.
-
If things are unclear, leave a comment.
-
To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
Annulla: non ho completato questa guida.
Altre 5 persone hanno completato questa guida.
