Question about Dell E173FP 17" LCD Monitor
I push the power button and the led light turn blue then orange and it won`t turn on this happen all of a sudden
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The above solution will work for a while until the cap goes completely bad.
Cause of power going off: There is a bad 1000uF, 16V cap on the power supply board.
Solution: Replace cap. Radio Shack sells a 1000uF, 35V cap for $2. This will work.
Why did the cap go bad? The cap is too close to a heat sink and over heated.
What does this cap do? This cap sends a signal to an IC which keeps the monitor 'on' after the power switch is pushed. When the cap is weak, AC ripple voltage is applied to the IC and it sends a signal to shut the monitor off.
Opening the Monitor: These monitors are difficult to open.
The two plastic pieces snap together and must be pried apart with a flat screw driver.
After removing the stand, you need to insert a flat screw driver at the bottom of the screen where two slots are located. Then work the screw driver around until the two plastic pieces are separated.
Remove the cover plate and unscrew the push button circuit board.
Unplug the monitor cords from the driver board and remove the screen.
Unscrew the mounting screws from the power supply board and remove.
You will need to pinch the plastic support in the middle of the board to remove.
Cap is located near a copper heat sink and the value will be on the side of the cap. It will be bulged up on the top. You will see burn marks on the board surrounding the cap. Unsolder the cap.
Install the new cap and solder. Make sure you connect + of the cap to + marked on the board.
Be careful not to solder across joints.
Keep leads long so you can bend the cap as far away from the heat sink as possible.
Reassemble monitor and turn on.
This should solve the problem.
Posted on Jan 01, 2009
Perfect...worked like a champ.
Posted on Nov 16, 2008
You can try the following steps:
1. Disconnect all the cables from the monitor
2. Wait for 5 minutes and press the power button in the front once ( donnot connect the cables at this step)
3. Reconnect the power cable only to the monitor
4. Power on the monitor and check if you see a self test running on the screen
If the selftest feature is not running the monitor has gone bad. All dell monitor if purchased on a seprate order ,hold a 3 yr replacement warranty. If you have got the same with your dell computer, call Dell to check if its under warranty.
Posted on Nov 01, 2008
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