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My lcd screen does not show images projected by the computer, when the RGB cord is unplugged it says check cable setting and when adjusted and it picks it up it still shows nothing

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Good day sir/maam, there are several reasons why your LCD monitor acts like the one you say. but let us start with the common ones.

  • check your PC if there is the video signal going out to your monitor. (simply, is your pc working fine?)
  • check your contrast/brightness control.
  • check what type of signal your monitor is accepting, VGA/DVI/HDMI/S-video?
If the above, did not solve your problem, there is serious problem with your monitor's power supply, check first if it is 110v/220/or autovolt that is 100-240v. Still wont work? at this point you have the option of taking it to your dealer for repairs or you do it your own. if you do, you may need to dissassemble your monitor. Check out your switching power supply section. you will find there the fuse, switching transistor on a heatsink, a high speed transformer and big capacitors, a switching oscillator IC. you have to test them one by one. until you find the bad part.

I suggest to bring it to your dealer. you may need extra cash.

Posted on Oct 02, 2009

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White screen on hp w2007 LCD monitor.


Troubleshoot an HP LCD Monitor
HP makes a number of liquid crystal display, or LCD, monitors.
LCD monitors create an image by passing light through a liquid crystal solution that either blocks the light or allows it to pass through to a color filter.
LCD monitors are ideal for use with a computer as they present an excellent still image and cannot suffer pixel burn-in like other flat-screen display technologies.
Even quality monitors run into the occasional problem and need some basic troubleshooting before sending them in for service.
Check the power cord to make sure that it is plugged in securely to both the monitor and the outlet. If you are using a surge protector, remove it and plug the power cord directly into an outlet that you know is working.
Detach and reattach both ends of the cable running from your computer to your monitor.
If your HP LCD monitor has more than one connector, use the other one to make sure that the connector isn't the issue.
Remove any switch or extension cable that may be present between the computer and the monitor.


Restart your computer. A fresh start will correct many software issues.


Check the documentation of your video card to make sure that it supports HDCP, or High Bandwidth Digital Content Protection, since the screen may be blank when you are trying to watch high-definition content through a video card that doesn't support it.
Some older HP LCD monitors also do not support HDCP, so check your monitor documentation as well.


Go to your video card manufacturer's website and install the latest drivers for your video card. Instructions for installing the drivers will vary by manufacturer, but they should be listed with the driver software.


Change your resolution to a preset video mode to make sure that you aren't trying to operate the monitor in an unsupported resolution.
Different models of HP LCD monitors support different preset video modes.
All of the preset video modes for your monitor are listed in your monitor's manual.
Resolutions of 1024 x 768 and lower are supported by almost all HP LCD monitors.


Press the "Auto/Select" button on the front of the HP LCD monitor to correct any images that are dark or blurry.
If this does not correct the image, press the "Menu" button on the front of the monitor to bring up the on-screen display menu, where you can use the "+" and "-" buttons to scroll through the options and "Enter" to select the option that you want to change.
Adjust the brightness and contrast as needed by selecting them and using the "+" and "-" keys. Press the "Menu" button to exit the menu.


Press the "Menu" button to enter the menu, scroll to "Image Control" and press "Enter."
From here you can choose the "Auto-Adjustment" option and the HP LCD monitor will automatically adjust the horizontal and vertical positioning to center the screen.
The ability to adjust these settings is available only if you are using VGA inputs.


Contact your retailer or manufacturer for any additional troubleshooting steps for your particular model of HP LCD monitor.
If your monitor still has issues, you may need to send it in to be serviced.
HP Support

http://welcome.hp.com/country/us/en/support.html

Fix a White Screen on an LCD Monitor
When an LCD screen has turned completely white, there are three normal causes: the screen is defective, the video cable is not connected correctly, or the graphics card on the motherboard of the computer is faulty.

You will need to troubleshoot these possibilities to determine which problem you have.
If you are not experienced in working on computer equipment, you should not attempt to disassemble your LCD screen because you could easily damage it.
Seek professional assistance unless you have experience working on computer hardware.

Disconnect the white LCD screen from the computer by unscrewing the blue monitor cable. Connect the working LCD screen to your computer by attaching its blue monitor cable to the same slot.
If your computer display does not show on the functioning LCD screen, try rebooting your computer.
If it still does not display, the problem is with your computer's graphic card on the motherboard. Seek professional repair assistance.
If your computer display shows normally on the working LCD screen, proceed to Step 2.
Unplug the LCD monitor with the white screen.
Disassemble the rear panel of the monitor with the small screwdriver.
Carefully separate the screws into piles so that you can keep track of how to reassemble the monitor.

Locate the internal video cable, a gray cable with a plug on the end that connects to the main components of the screen.
See the References section for photos of the video cable for assistance.
http://www.laptoprepair101.com/laptop/2008/04/13/laptop-lcd-screen-turned-white/
Unplug the cable, checking for any debris or blockage.
Reconnect the cable firmly.
Reassemble the LCD screen. Plug it in and connect it to your computer.
If the screen is still white, you have a defective LCD screen.
You will need to replace it or take it to a professional repair service for assistance.




Without this test you'll have to guess because as I mentioned before this could either bad motherboard or bad LCD screen.
You'll have to disconnect the video cable from the LCD screen (connector 2) and the inverter board (connectors 3 and 1).
After that you connect another working screen and test video.
For this purpose I'm using one of my test LCD screens.
My test screen is cracked and because of that you see a wide white band in the center but it still works fine for this test.
The original screen is white but my test screen works normal (except the crack of course) and I can see the image.

After this test I can tell that the problem must be related to the screen.
After I assembled everything back together and connected the original LCD, it's still white.
CONCLUSION. In my case this problem is related to the LCD screen and it has to be replaced.

Aug 04, 2013 | HP W2007 20.1 Widescreen Monitor

2 Answers

Flatron L206 LCD comupter screen. Images have a gleem on them. pictures do not show properly.


Check the cable first, and set computer to a lower resolution to test the display.

Jun 01, 2008 | Computers & Internet

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Troubleshooting Flat Panel Monitor issues. Screen is blank and power indicator...


Troubleshooting Flat Panel Monitor issues.

Screen is blank and power indicator is off

The monitor is possibly not receiving power. Perform the following steps to fix the problem:
  1. Ensure that the electrical outlet and the monitor are both switched on.
  2. Check that the power cord is firmly plugged into the electrical outlet and the power supply unit.
  3. If the power cord has a removable fuse, replace it.
  4. Try another power cord.
  5. Try another electrical outlet.
  6. Check the power connection at the back of the panel.
Screen is blank and power indicator is steady green

Brightness and Contrast may be too low. Adjust the brightness and contrast using the On-screen display controls (OSD) by selecting the button
Screen is blank and power indicator is steady amber

The monitor is in the Power Management Standby state. The power management feature is invoked when the computer recognizes that you have not used your mouse or keyboard for a user-definable period. Perform the following steps to bring monitor out of the power management state:
  1. Press any key on the keyboard or move the mouse to restore operation.
  2. Check the Power Management software on your computer.
  3. flatpnlmont12.jpgPress the (OK) key to switch between analog and digital mode. If the panel is the wrong mode for the signal being provided, the monitor appears to go into sleep mode.
Screen is blank and power indicator is flashing green
Display mode of the computer is outside the range of the monitor. The display mode the monitor uses is controlled by your computer. Therefore, you should refer to your computer's documentation for details on how to change display modes.

The image size, position and shape may change when the display mode changes. This is normal and the image can be readjusted using the IMAGE SETUP and the monitor controls.

Note: Unlike CRT monitors, which requires a high refresh rate to minimize flicker, TFT technology is inherently flicker-free. If possible, configure your computer for 1600 x 1200 addressability at 60Hz vertical refresh rate.

Use the following table as a guideline and reconfigure your computer to use a supported display mode. The highest resolution (for example, 1600 x 1200) produces the optimal output, but limitations of your monitor may prohibit this setting. Adjust the addressability mode until an image appears.

CHECK SIGNAL CABLE" message is shown and power indicator is steady amber.

The monitor is not receiving a video signal. Perform the following steps to fix the problem:
  1. Check that the signal cable is firmly connected to your computer
  2. Check that no pins are bent in the signal cable connector.
There are noises in the video signal. The IMAGE SETUP function is used to adjust the level of noise in the video signal which causes horizontal lines or areas where the image appears to be unstable and jitters or shimmers. This can be done automatically or manually.
Note: It is not applicable to digital input.
Use the image setup fix the problem:
  1. flatpnlmont6.jpgSelect (Image Setup) menu in the OSD.

  2. Select Manual to adjust CLOCK/PHASE settings.
Image appears to be discolored

The color setting may be incorrect. Perform the following steps to adjust the color settings:
  1. flatpnlmont8.jpgSelect (Image Properties) from the OSD menu.
  2. flatpnlmont9.jpgSelect (Color Properties) to adjust the color mode you find most comfortable or fine tune the colors using the Custom menu.
A few dots are missing, discolored, or inappropriately lighted

A small number missing, discolored, or lighted dots may be present on the screen, which is an intrinsic characteristic of the TFT LCD technology and is not an LCD defect.
Using On-Screen display (OSD) controls
flatpnlmont12.jpgThe settings adjustable with the user controls are viewed through the OSD. Press the (OK) button to display the main OSD menu.
OSD main menu:

Note: The LCD monitor needs time to become thermally stable the first time you turn it on each day. Thus, to achieve more accurate adjustments for parameters, allow the LCD monitor to warm up (be on) for 15 minutes before making any screen adjustments

on Aug 08, 2010 | Televison & Video

5 Answers

Double image


Use this link to get company support:

http://www.necvisualsystems.com/SupportCenter/SupportTracker/

Apr 13, 2008 | NEC MultiSync MT840 Multimedia Projector

1 Answer

Normally, when the monitor is switched on, a blue screen is shown momentarily, with 'acer' right in the middle, before it shows the image that the computer is sending. But now, the screen does not show...


It sounds like either a bad signal input , possibly from a loose plug on the cable from the PC or bent pins on the plug / the video graphics card in the PC/ or the settings on the monitor need adjustment. Use the OSD (On Screen Display)
---------------------------------------------------------------------------------------------------------------------
First check to make sure both ends of the cable from the PC to the monitor are not damaged and are seated good & tight.
If those are fine then unplug both cables from the monitor & leave unplugged for 10 minutes or so to see if the screen has an automatic reset.
If that does not work then use the monitors OSD (On Screen Display) to adjust to default settings. If that does not work, plug the monitor into another known good PC.This will tell you right then if its the monitor or "Your" PC.
__________________________________________________________
Here is your manual if needed
http://www.retrevo.com/support/Acer-AL1717-Monitors-manual/id/719ag107/t/2/

Oct 09, 2010 | Acer AL1717 17" LCD Monitor

1 Answer

My Canon LV-5210 displays no image for my computer. It has worked fine in the past. And it did not work a couple days ago and then it worked OK yesterday when we accidentently pushed the Input buttom. But...


If your projector displays no image, this could be a variety of problems. First, check that the projector has power. On the top of the LCD or DLP projector should be some lights. With power, those lights will be on. If it has power, check to make sure that the projector lamp is firing. If so, go to the source. Make sure that it is connected with a VGA cable or USB cable to your computer, or with an RGB cable, S-Video cable or DVI connection to your VCR/DVD Player. From a laptop computer, the VGA cable should be connected to the VGA out connection, and into the VGA in connection on the projector. Are both ends tight?
If everything has checked out so far, the solution probably lies with the external monitor port. Check this by holding the Fn key on the keyboard, then press the F7 key. (On some computers, the key might be F5 or F3. Try these if F7 doesn't work) Each time you press the Fn / F7 combination, you will cycle your display through the following settings:
* Press Fn / F2 or F2 once: The laptop screen only
* Press Fn / F2 or F2 twice: The projector port only
* Press Fn / F7 or F2 three times: Both the laptop and projector port
* Wait a few seconds after each time you press the key combination to let the LCD or DLP projector refresh. Nine times out of ten this will result in seeing your projected image.
this should help you :)

Aug 26, 2010 | Canon LV-5210 Multimedia Projector

2 Answers

The TV works fine but the screen is green. Color


R G B circuit transistor to be checked. This is located in the picture
tube connecting end PCB. ( Neck ) Check the transistor and its components.
Can be dry solder also!!

Jul 28, 2010 | Hitachi 50V500 50 in. HD-Ready LCD...

1 Answer

Greenish picture when i play my Compaq Ipaq MP3800 projector


The greenish image is due just by one sof the terminals of the cable. You just need to replace it. Or try anothr RGB cable and look what happen.

Nov 18, 2008 | Televison & Video

1 Answer

Screen Doesn't show Transparent or High Opacity Images


Calibrate in the monitor menu the RGB values to sRGB space and disable all optimizations (movie mode, text mode...). Leave it in "Normal".
Also set carefully the contrast in the monitor to something like 60% and choose the right GAMMA in the image editing software.
Make sure you are using the native resolution of the LCD and check in the user's manual how to do the adjustments because all monitors are different.
All those settings are one-time programmable, once you got the right settings they don't need to be changed again.

Sep 21, 2006 | Sceptre X20G-Naga II 20.1" Flat Panel LCD...

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