For no apparent cause I get a small checkerboard pattern on the TV. No TV image, no menus, nothing but this pattern which degrades into hazy colored horizontal lines in broad vertical columns. Lamp and status lights are off. No response from a reset. Performed self diagnostic test but I cannot see a result as the screen shows no image. I can turn the TV off and on. I disconnected all components and ran the cable directly in and it did not help. We have had no surges or storms in the last 24 hours and the set is on a surge suppressor. Any ideas?
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Re: No image on screen
Your set has a defective FMT (Formatter) board. If you are looking at the back of your set it is a board inside the metal housing on the left. It is difficult to get too but if you can or are experienced in electronics there are a handful of bad capacitors on this board. You could also replace the board this would take care of your problem.
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It sounds like multiple problems. First of all these sets are famous for bad coolant between the tubes and lenses causing the picture to be degraded causing the foggy picture. The fluid can be changed to clear up the halo's. The double images are convergence issues. Most likely both convergence amps need to be replaced. I hate to say it but it sounds like you got a money pit. Good luck. Thanks for using fixya.
Picture quality problems (such as lines, fuzzy image, or wrong colors)Check the cables and connections:
Make sure that cable connections are securely fastened to the connectors and try reaseating the connectors. If connecting a device using component cables, make sure all three color-coded cables are connected correctly into the corresponding connectors.
Check the condition and length of the cables. Cables that are longer than 3 meters (10 feet), become more susceptible to promoting signal degredation (small dots "sparkling" on the screen and image ghosting). Cables that have been bent or pinched may also cause picture quality problems. Replace the cable or try a different cable type. Press the CH button to display a different channel. Picture quality problems on a single channel or on all channels may be caused by the TV station signal (antenna) or the cable signal source.
Make sure that the image quality issue is not coming from your source signal. For example: if the image quality issues occur while viewing TV, switch the source to a DVD player to see if the image quality problems go away. If selecting a different input source (using the remote control) causes the problem to go away, troubleshoot the source device causing the problem - adjust aerial antennas, call the cable company for assistance, and . If a picture quality problem occurs on all sources, the TV or its settings may be the cause of the problem. NOTE: Higher resolution TVs will make it much easier to view signal problems coming from source signals - especially TV signals. For example, if your TV cable company experiences heavy load on their system, you may be able to detect small miscolored squares that briefly scatter across the screen (macro-blocking). On a smaller standard TV, this type of quality problem is much less noticeable on a standard TV, but can become very annoying when viewed with greater detail.
Open OSD to adjust the picture: Press the Menu button to open the OSD. Select the Picture menu and adjust the image as needed. If you cannot adjust the TV to fix the problem, reset the settings from the OSD to see if the problem goes away.
Unplug the TV from its power source. With the power cord unplugged, press and hold the power button for five seconds. Turn on the TV. If the image quality problems still exists across all types of signal sources, the TV should be serviced.
If this dosent solve your problem, letus know and we will find another solution, Dahaka
Sorry to tell you this but you have a bad FMT board which is not available. When this board goes out it will display a checkerboard pattern on the screen, or it may not even turn on the timer light will just keep flashing.
The most common problem that may occur when you connect a video game console to a TV (especially front and rear-projection models) is a condition that is often called "image burn" or "image retention." This typically happens if the same image is left on the screen for a prolonged period of time, like when playing a video game that has many stationary images or if the game is left on pause for an extended period. In some cases, this may even be caused by test patterns, on-screen programming menus, or picture-in-picture boxes.
Before connecting your Nintendo Wii, I would first suggest checking the owner's manual for the TV itself to see if Samsung has any warnings or disclaimers against doing so. If you are unable to find your owner's manual or are unsure of what to do next, you may always contact Samsung directly for more information.
Should you choose to connect the Wii based on the manufacturer's suggestions/warnings, keep in mind that you can usually avoid issues like image burn by taking simple precautions such as turning the TV off when taking a break. The less time that the same images (or backgrounds) are displayed on the screen, the lower the risk is of image burn occurring.
Sounds like you have shorted or open Vertical Filter Capacitors. ( you may also have a bad vertical drive chip now since you've waited to replace the capacitors). You'll need to replace the bad capacitor/s and if the problem doesn't go away, replace the chip also. And as always, check for any cold solder joints ( bad lead connections to the printed circuit board ) as you replace the bad components.
I Hope this has helped.
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checkboard pattern is generated internally by the light or optical engine.. when the signal is blocked from the signal board. the optic engine generates these test patterns. rolling piture also indicates a signal board problems.