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may need to tell the laptop in the screen resolution settings to display the image on the tv instead of the laptop. Right click on the empty desktop of the laptop and go to either propertie or screen resolution and then make sure that the computer can see that the tv is hooked up and that the image is showing on the tv instead of the laptop. You may also need to change the mode on the tv to vga.
Below are some troubleshooting tips for a TV that has a fuzzy or blurry picture;
If your Plasma or LCD TV picture is blurry or fuzzy there are several things that may be causing the problem. It's worth running through the following list before seeking service. You may find yourself saving the full cost of a TV repair.
Make sure you are using the appropriate cable box for your TV. If you have a high-definition TV you should also be using a high-def channel box from your cable provider. Watching standard definition channels on a high-def TV can make the picture look distorted and fuzzy.
Not all cable channels are broadcast in high-definition. When you stretch a standard definition picture to fill the full frame of your wide-screen TV it may look distorted. You can try changing your TV display settings to show standard-def channels at their native resolution. This will create black or gray bands on either side of your picture.
Ideally all of your video components will be connected to your TV with HDMI cables. Your next best option will be component video cables. If your cable box does not have HDMI capabilities, contact your cable company about upgrading your box to one that does include HDMI.
Make sure there is no glare on your TV from a window or other strong light source. This can significantly degrade the quality of the image you are watching.
If your TV has digital noise reduction, try turning that feature on.
You can adjust your TV's sharpness and picture modes to see if that improves picture quality.
Try plugging the power cord into a different electrical outlet and/or surge protector. You may be receiving electrical interference through your power cord.
Trying moving any nearby electrical devices away from the TV. They may be creating interference that can degrade the picture quality.
Let me know if the above helps or not, so that I can direct you further on what do next.....
Try the aspect button on your remote, or if you have this hooked up to a cable or satellite converter, there are screen resolution preferences, you can change the screen resolution here, go the the menu portion and look for video/audio field
You would need the service manual and actually trouble shoot the input circuits. If you would like a link where you can purchase the manual and have it emailed instantly to you let me know. The service manuals there are cheap and the quality is exceptional.
It seems to me that you are watchin an analog signal on a digital HD TV, the analog signal is has a standard resolution of 720x576 for NTSC (American Signal) and 720x480 for PAL (European Signal).
It could be worth to go contact your cable company, they can hook you up with a digital receiver which gives a better signal and might even have a HD Signal (this means it has a HD-Ready 1280x720 of Full HD 1920x1080 resolution).
If you really want to use your LCD TV on his max this is really worth considering