I have a dell monitor that turns the invereor off when an input is attached . The inverter turns back on when the input is removed.
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Re: dell e228wfp goes blank
Dell monitors when no signal is supplied will float a self test box around the screen.
When a signal is applied a different circuit takes over.
Your monitor is a very high resolution monitor, Are you sure your video card can support It?
Have you tried setting your computer to different resolutions, Try starting at a low resolution and work the way up to the highest resolution of your video card.Whatever I do, I consider it a success, if in the end I am breathing, seeing, feeling and hearing!
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Re: dell e228wfp goes blank
Have you selected the correct input by pushing buttons on the front panel switch?Whatever I do, I consider it a success, if in the end I am breathing, seeing, feeling and hearing!Comment
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Re: dell e228wfp goes blank
yes I only have an analog inputComment
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Re: dell e228wfp goes blank
can you tell us if those caps are ok?
the reason I ask is, it looks like you have a cap or possibly 2 that are rounded on the top on the psu
hard to tell from the pic
the 2 in question are in pic4 bottom right hand corner cap, and the one above it
they may be your problemComment
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Re: dell e228wfp goes blank
All of the caps are ok and have a low esr when measured in circuitComment
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Re: dell e228wfp goes blank
When you put in the input is the power LED green or orange?
Also, it looks like you have some KZG caps in there - these are notorious for failing without any visible signs (meaning they could be bad even though they aren't bloated).
I would remove them then test ESR again on each KZQ cap.
Then again your pictures are blurry maybe I made a mistake about the presence of KZG. But please check! If possible, list the brand and series of the caps in your monitor.Comment
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Re: dell e228wfp goes blank
Black caps on video board look 'puffy' - like just beginning to bloat.Mann-Made Global Warming.
- We should be more concerned about the Intellectual Climate.
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Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
- Dr Seuss
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You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
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Mann-Made Global Warming.
- We should be more concerned about the Intellectual Climate.
-
Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
- Dr Seuss
-
You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
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Comment
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Hi everyone,
Looking for some advice or opinions on what to do with a monitor issue I’ve run into. Apologies in advance is this crossovers a few forum categories.
I have a Dell U3425WE, which I've recently replaced with another model. That said, the original unit is still fully functional in terms of the display — it works perfectly over HDMI and DisplayPort. However, the USB-C and Thunderbolt 4 ports have stopped functioning correctly. The Issue:- The 90W Thunderbolt 4 port (circled in the photo) no longer charges or powers any device, including laptops or MacBooks.
- There’s
07-15-2025, 04:55 AM -
Good evening, gentlemen.
I have a problem with my monitor. It turns off after a few seconds or flickers. Shining a flashlight on the screen doesn't show any image, so I guess it's not the "2 seconds to dark" I read in the forum.
To turn it back on, I have to press the power button twice. Then after a few seconds it turns off again or flickers. See video.
https://drive.google.com/file/d/1L6S...ew?usp=sharing
Things I tried
- Bought a new AC adapter thinking that was the problem but the problem... -
Hi.
I kindly ask you to help me solve the problem.
Dell Precision 5510, motherboard AAM00 LA-C361P Rev:2.0
The board turns on, there is no image.
Read more. When the power supply is connected, the front panel indicators light up briefly.
When you press the power button, the button indicator lights up. The board works
there is no image, there is no matrix initialization, there is no image on HDMI.
When turned on, the fans do not spin, but when they warm up they start spinning.
When you turn off the button, the fans spin up to full speed for a short... -
My question pertains to understanding the control circuity inside a Dell PT434 type battery used in Dell E6400, E6410 and other Dell notebooks?
Does anyone have a circuit diagram for the inside of a Dell PT434 battery and/or a description of how the control lines work to control this battery?
My reason for asking is I have a battery which I cannot get to charge beyond 1% in a Dell E6410 or E6400.
The LED bar graph charge indicator on the battery shows one LED lighted when the info button is pressed.
I have tried multiple different Dell power adapters. My Dell... -
I bought this p2210f dell monitor to fix. Schematic is the same as p2210.
Behaviour is that monitors comes on but then backlight switches off almost instantly. If I look with flashlight I can still find the "No signal message". So definitely a backlight issue. Trying to advance the issue I proved that the protection circuit is switching off the backlight by shorting out C3 and resistor to disable the INL chip then re enable by removing the short.
This is where it gets interesting. When I disassembled the monitor to solder leads on c3 capacitor I noticed the backlight flickered...
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