I Have sound but no picture! Picture flashes just for a second and then it's gone! Logo os Samsung is still "visible" with a flashlight in a dark room! Where is my problem on the main board or the power suply board?? Both have no signs of bad capacitors...
SOURCE: Video Game image is in Black and White in Samsung T220HD
Connected to "Y"? That is for the rgb cables for a high def connection method. You need to find the video in connection plug, usually yellow to get a color picture for the games. Hope this helps.
SOURCE: how hard it is to replace by yourself main board Samsung LN-T4065
You need to do some more diagnosing of the problem. If you get sound and change channels take a bright flashlight and place it again the screen. Look for an image around the edge of the flashlight.
If you see an image that means the LCD controller board (TCON) is probably good.
The problem is probably one of three causes;
1) Inverter board is bad
2) CCFT (cold cathode fluorescent light) are bad.
3) Power to the inverter board is bad. You can also check the connectors.
SOURCE: Samsung SyncMaster 940T. Suddenly went to black
The backlight is problem is caused by either a faulty inverter board or a faulty CCFL lamp.
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SOURCE: LNT4061F LCD TV Picture Problems
yes it can, but i would lean more to a bad T-con or control board the board is around a hunderd dollars from Samsung on the web or Andrews Electronics on the web
SOURCE: Samsung Synchmaster 940MW - Will no longer power up.
Hello,
The Samsung SyncMaster 940MW monitor has an issue with the power supply going out. The flashing power light or not turning on are the classic symptoms of this issue. Check out our web site at: www.ccl-la.com We have a step by step repair guide posted that will guide to doing the repair yourself. It involves changing a few capacitors on the power supply. If you can solder then you should be able to do the repair yourself. If you don't want to do the repair we do offer a repair service for $35 plus return shipping. If you have any additional questions just let us know at: [email protected]
I hope this helps, if so please rate our solution.
Buddy
Corporate Computer
www.ccl-la.com
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