Question about Acer Aspire L310 (ASL310UD631A) PC Desktop

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No input signal

I have a dell 2405 fpw. no problem is i am seeling a small blue box at the upper right side of my monitor that is lodged over the screen.

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Plz try by resiting the ram, if the problem is not solved then *********** board needs servicing

Posted on Jan 13, 2009

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Posted on Jan 02, 2017

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My Dell 2405 FPW LCD Monitor is powering up but display isn't showing.


check for dry joints connector at the inverter board or if the back light tube is almost black in color it needs replacement.

Sep 21, 2012 | Dell UltraSharp 2405FPW 24" Flat Panel LCD...

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My dell inspiron 530 shows a block with red, white, green, and read, can't get to the my programs????


That "red white green and blue" block is a color pattern tester. that means the monitor is on, but is not receiving a signal, so its running tests. If your monitor has Digital input and VGA input, you may just need to switch inputs. Look for 1 or VGA if youre using the blue hook up. look for 2 or digital or dvi if youre using the larger white hook up. Some monitors also have 'auto detect'. If you are in "auto detect' bbut the color box is still there, then your monitor is not receiving video signal from the computer. It could indicate a bad cable or no signal being sent by the machine. If you try another monitor, you can see if the machine is working. I would try a monitor setting for VGA-1 first, since thats most common.

Jun 25, 2010 | Dell Inspiron 530 Desktop Computer

1 Answer

How to remove "no composite inpute signal"


If you have the same problem with both monitors, it sounds like a display card setting or problem.
The chances of you having the same problem with different units is 1- 50.
Try the monitors on a different PC and get back to me.

Sep 02, 2009 | Dell UltraSharp 1907FP 19" LCD Monitor

1 Answer

No composite input signal


Try the following:
Right after power on, tap the F8 key to see if you can get a short menu to come up.
If it does, select "Safe Mode."
If your screen looks different, it may be just the driver for the display card or monitor is trashed (Windows like doing that, keeps us challenged).
- Open Control Panel, then System, then Hardware, finally Device Manager.
- Locate Display adaptors, open and delete the adaptor listed (all, if more than one.)     - Locate Monitors, open, delete any listing there.
Reboot.
Windows should 'find' two 'new' devices and install the drivers for them.
The display may still be different if you had other than the default settings.
Go then to the Display folder of the Control Panel, click on 'Settings' and experiment. Depending on your Windows version, if you choose something dumb so it makes the screen unreadable, ignore it and Win will ask if you want to keep it and give you some time to acknowledge that you like it. When you don't, it will just go back to the pre-tinkering settings.       

Apr 03, 2009 | Dell UltraSharp 1907FP 19" LCD Monitor

1 Answer

Small blue screen that says '' No composite input signal''


go to menu on the monitor and choose setting then reset the default

Nov 16, 2008 | Dell UltraSharp 1907FP 19" LCD Monitor

1 Answer

Dell 19" Flat Screen Monitor


I have a DELL 2405 FPW. I had trouble the first time finding the button but it was at the very bottom of the stand under the cable channel. I'm pretty sure if it won't move up and down that it's locked in the down position. See if you have a button that will allow it to slide.

Nov 15, 2007 | Dell E173FP 17" LCD Monitor

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