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Philips LCD Monitor Cycle through colors

The monitor cycles through diff colors - like its a test pattern. Tried Changing the vga cable, using a DVI cable, plugging into another computer. I was watching a movie last night on it. Wokeup this morning with the colors cycling

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  • Expert
  • 37 Answers

You mite need to replace the board which is in the lcd , which is quiet rare and mite even be unavailable,

Posted on Mar 25, 2014

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Posted on Jan 02, 2017

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SOURCE: DVI input on monitor not working

Contacted viewsonic about this issue- they suggested- have both dvi and vga hooked up to same machine. start with poweroff on both. power on monitor, then power on computer. when you see display coming from the vga, power off pc, then disconnect vga cable, turn off power to monitor, disconnect power cord from monitor for 5 + seconds, reconnect power cord, power on monitor, then power on pc.
If this doesn't work to get the dvi working, (as happened to us) we returned our monitor for a replacement, since it was still under warranty.

Posted on Nov 26, 2007

  • 300 Answers

SOURCE: "No signal detected" when LCD connected with DVI-D Cable

Thank you for providing your configuration details.
You have failed to specify wheather or not your LCD Display is under Warrenty.

Perhaps these simple trouble shooting procedures will get the job done.

1. use the DVI to VGA adaptor that came with your card

Plug in a regular CRT monitor to the Primary Display Output Port using the DVI to VGA adaptor
( either port can be designated as the primary by you )
I like to use the Port nearest to the motherboard as the Primary

2. plug in the your LCD monitor on Secondary Display port using your DVI cable

At this point you should be able to see your desktop on the Primary CRT Display

3. Go to the display properties and use the Nvidia Dual Display Setup Wizard

set both desktops to CLONED at a resolution of 1024x768 and set the refresh to 60Hz
which is default for most LCD displays , some have higher refresh rates , consult your user manuel

If the display resolution and refresh are set incorrectly for your CRT or LCD you will see
Signal Out of Range ( if the display has the ability to display that error message )

At this stage both displays should be showing a Windows Desktop

If you now see your desktop on both displays , you can now put the LCD on the Primary Port



No Signal Detected ( this means the display device is not receiving a signal )

If your LCD display is still displaying the error message
"No Signal Detected" after performing the trouble shooting proceedures
You may need to read the user manuel about how to enable DVI signal input.

If you are certan you have done everything correctly but still see only "No Signal Detected"

Your LCD Display may need replacement

Loch Hime :-)

Posted on Sep 14, 2008

FoxSysTech
  • 23 Answers

SOURCE: input select button to switch between hdmi/dvi/vga

Unless there is simply some dirt or dust caught in it, I would imagine that the button has lost its 'spring' or bounce-back ability which means that either you can take the big risk of attempting to fix it or come up with some other clever way to give it bounce.

Posted on Jul 03, 2009

  • 3 Answers

SOURCE: Acer AL2216W 22" LCD monitor. DVI input apparently

Not Good..
After you've checked that the video cable is connected properly, make sure that all the pins in the video cable plugs are straight and not broken off. Then test on another PC. Make sure your CMOS battery has not gone flat, as some PC's will fail to load basic drivers if CMOS memory is lost. The battery should show no less than 2.5v, if it's marked 3 volts when tested on a multimeter. If you can't test it, just buy a new one at the supermarket or hardware, usually around $4.00.
Next thing to try is your Video Card . If it is an on board one like most are now, there isn't anything you can do but try another card in an expansion slot or fit a new motherboard. At this point, I'm sad to say, you're better taking it to a PC shop where they will have a few things at their disposal to try.

Posted on Jan 30, 2011

budmrtn
  • 11361 Answers

SOURCE: Acer AL2216W 22" LCD monitor. DVI

You may have problem in the logic board, it uses surface monted components no much chance for DIY repair.
Service manual; http://elektrotanya.com/?q=showresult&megnev=Acer&megnev2=AL2216W&kategoria=monitor&kat2=all

The cases these days are hard to open, they use plastic finger hooks types, they go in easy but real hard to remove without damageing them.
Use thin flat blade to crack open at the bottom edge so the scratches will not be so noticeable, and work your way around, look out for cables attached to the front bezel also.

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
Please leave rating if it helps.

Posted on Jan 31, 2011

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Lcd philips 32pfl7422


3 possible solutins / steps:
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Only the top half of my Philips 170S LCD monitor displays a normal picture. Below this there is a one pixel wide white line and then the bottom half of the monitor has a lined pattern that gradually...


If the monitor is connected to a DVI output on your computer try to connect it to the VGA to see if it's an issue with the input or if the monitor is shot. It sounds like your monitor just crapped out.

Jun 06, 2017 | Philips 170S4FG 17" LCD Monitor

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How do i connect the lcd to my computer


The monitor appears to be DVI capable, (White connector with a grid pattern). You will need to connect the monitor to the computer using a DVI cable (White connector with grid pattern and plus sign shape on one side). If your computer is not capable of connecting to a DVI monitor check to see if the monitor has a Blue VGA (Blue Zig Zag Openings) and connect it with a VGA cable. If your monitor only has the white DVI connector and your computer only has a Blue VGA connector you will need to go to the store (Best Buy, Walmart, Etc) to buy a small adapter that will convert DVI to VGA. If you ask someone for a DVI to VGA adapter they will know what you are talking about. I hope this helps.

Mar 14, 2011 | Sceptre MNTR SCPE|LCD19' 8MS DVI...

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I have an AOC 22+ it is just a little over a year old (just out of warrantee) When you turn on the monitor and boot the computer the monitor will go thru its start up showing the AOC logo then it goes...


unfortunatly i believe the monitor may be dead. also check the connection on the monitor itself (the cable) some of these monitors are picky about which port is active dvi or vga there should be an option to change the input on the monitor itself from vga to dvi for the connection i hope that helps let me know!

Mar 14, 2011 | AOC V22 22" Monitor

1 Answer

My monitor is blank, the Acer logo will flash on when I start it but cannot get a signal, have tried it on another machine same response.


Hi,

I am not too sure if you have tried this but this might help, for what i know your monitor have 2 ports for video (DVI and VGA). VGA is the one with color blue adapter, while the DVI is white. If your using VGA for both computer might be you can try DVI or from DVI to VGA. Also try a different cable for both VGA and DVI. If still the same might as well contact the Acer and check the warranty, normally monitor had 2-3 years of warranty, Have it replace if still under warranty.

I hope this works on your issue.

thank you for choosing Fixya.

Mar 06, 2011 | Acer V193W 19 inch LCD Monitor

1 Answer

Just received Refurbished Advent CBE 1401. It is being replaced because power switch is faulty - but I have questions about machine. 1. When initially switched on the switch turned red is this normal? I...


1) No. The switch color should have been Green

2) No Signal on the monitor, indicates the monitor is not receiving a Video Signal from the computer.

A) Could be due to a faulty monitor cable.
Monitor cable is used on a working computer for a test,
Or,
working computer's monitor cable is used on the Advent for a test.

B) Could be due to the graphics 'engine' on the motherboard, or on the graphics card is bad.

[Graphics 'engine'.
GPU
Graphics Processing Unit.

http://en.wikipedia.org/wiki/GPU ]

If the computer is using Integrated Graphics, the GPU is on the motherboard.

(Integrated Graphics is also referred to as OnBoard Graphics. Meaning On the motherBoard)

You will know if it's Integrated Graphics, because the monitor cable will be plugged into the VGA connector, on the motherboard

http://en.wikipedia.org/wiki/VGA_connector

Since you indicate an adapter was included, to adapt to a different port (Connector), it could be a VGA to DVI adapter, or a DVI to VGA adapter.

Your monitor may just have a VGA connector on the monitor cable.
Hence you would use a female VGA to Male DVI adapter.

Your monitor may be an LCD flat screen monitor, and has a DVI connector on the monitor cable.
Hence you would use a female DVI to Male VGA adapter.

DVI
Digital Visual Interface

http://en.wikipedia.org/wiki/Digital_Visual_Interface

VGA monitors are Analog.
LCD monitors are Digital.

A computer puts out a digital signal.

If a VGA monitor is used, the computer has to alter the Digital signal to an Analog one.
This slows down the video signal.

If your monitor (In any case. Not just this one), is an LCD flat screen monitor, it is best to use a DVI monitor cable, and plug into a DVI port on the computer, if available.

If your monitor is a VGA (CRT. Cathode Ray Tube), monitor, and you have a DVI connection on your computer, using the adapter will do you no good.

The adapter just uses the contact pins for VGA, that are present in that DVI adapter, and hence the DVI connection on the computer.

You're still just getting an Analog VGA signal.

Example of a female VGA to male DVI adapter,

http://www.directron.com/dvi.html

If the Integrated Graphics are suspected to be bad, a graphics card is used in the appropriate expansion slot, for a test.

If the graphics work then, the graphics card is left in service.

After I test the monitor cable my next procedure is to suspect the Power On switch, or the Power Supply, and go to the graphics next.

The reasoning is that Power Supply failure, is the number one cause of computer failure.
The next is the Power On switch, then Electrolytic Capacitors used on the motherboard.

(Specifically, any Electrolytic Capacitors used in the motherboard Voltage Regulator Circuit)

If the Power On switch is bypassed, the diagnosis will reveal if the problem is the switch, or Power Supply.

Bypass the Power On switch, and the Power Supply comes on?
Problem is the Power On switch.

[One Power On switch I have found to fit a lot of computers. The Power On switch goes into the plastic Power On button,

http://www.directron.com/atxswitch.html ]

Bypass the Power On switch, and the Power Supply does Not come on?
The problem is the Power Supply.

The Power On switch is bypassed using a jumper wire, from the green Soft Power On wire, to ANY black Ground wire. The contact made is a brief momentary one.

The jumper wire is used at the back, of the 20, or 24-pin ATX main power cable connector.

To be continued in an additional Comment.


Jun 04, 2010 | Computers & Internet

3 Answers

DVI input on monitor not working


Contacted viewsonic about this issue- they suggested- have both dvi and vga hooked up to same machine. start with poweroff on both. power on monitor, then power on computer. when you see display coming from the vga, power off pc, then disconnect vga cable, turn off power to monitor, disconnect power cord from monitor for 5 + seconds, reconnect power cord, power on monitor, then power on pc.
If this doesn't work to get the dvi working, (as happened to us) we returned our monitor for a replacement, since it was still under warranty.

Sep 17, 2007 | ViewSonic VX2025wm 20.1" LCD Monitor

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