Hey guys, any suggestions or ideas on this problem. Have picture, but background of picture is red. Is there a place where I can download a service/repair manual?? Id like to troubleshoot and fix this myself. Everyones help and input would be greatly appreciated. Called a repairman and says it will be 280 to fix, but they never tell what the problem is. I'm sure its something very simple and easy, but the repairman wants lots of cash! Please help me out
Is it a reddish tint or the picture is just red? Did it just happened, or you are just noticing a gradual change?
Reddish tint: Blue and/or green CRTs are getting weaker. More likely the green CRT. Unplug the unit and somehow remove the back cover, etc. to get a direct view of the CRTs. Use a flashlight to inspect each CRT through its lens. CRTs with excessive wear will show a definite "burn" mark where the picture forms. Compare the center CRT (green) with the other ones. Normal wear in all three tubes is expected. What is important is to notice the difference. A significant wear in one means it has to be replaced, but usually all three have to be replaced in order to get the right purity. This is a major overhaul, and unless the TV has a sentimental value, it's not worth it.
Picture just red: Green and blue CRTs not firing. This is easily observed by running the TV with the back cover removed. Probably a loose connection, but you will need the manual to trace it. You could gently tap the chassis while the TV is running and see if this restores the blue and green CRTs.
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That model is famous for having CRT issues. Chances are the Red CRT or one of the CRT drive board is whats causing the issue. Usually if the set shuts down shortly after turning all red then its the CRT. But if it just turns red and keeps working it could be one of the CRT boards dropping out causing the Red to become dominate.
Hi, Your question shows its Samsung rear projection TV that has 3 tubes to project picture. Symptom shows TV got problem in convergence board that will be replaced. Model number or TV would help me to provide you more info. Thanks.
the number of flashes of the red indicator lamp points to the possible cause of the delay of the raster or picture, but usually it's an indicator of an emission unbalance between crt(picture tube) guns. the picture will take longer to show up as the emission on either of the picture tubes goes down.
Sorry, your red crt (picture tube) is bad, last time i called sony they were no longer available. Have your tv guy turn down the red drive on your screen control (inside the tv chassis , you should not do this !) it may stop the bright red for a while.
Based on service manual info, it cant blinks 7 times as per symptoms, please count again blinks. It can be 5 times.
If its 7 times blink, Horizontal Deflection stopped in this case. If you want to repair it at your own, please let me know to guide you further but it is necessary you should have knowledge of electronics.
ITS PROBABLY THE RED PICTURE TUB (CRT). IT LOOKS EASY TO INSTALL, BUT YOU NEED TO MAKE ADJUSTMENTS TO THE SCREEN ONCE IT IS INSTALLED. THE PART IS $3OO. TRY TO FIND SOMEONE TO INSTALL IT FOR $150 OR LESS. HERE IS A WEBSITE TO HELP YOU MAKE ADJUSTMENT IN THE FUTURE ON YOU OWN. PRIDAH
If the picture is playing fine and you notice that the background is getting more and more red, until it is too red and the set shuts down, it could be that the red screen control is set just a bit too high. If this is the case, you can probably correct this yourself. If you are watching a perfect picture and then it suddenly flashes a very bright red, with thin red lines in the pictureand then shuts down, it usually means that the red picture tube has developed a short in it, between the cathode and heater. A good tech might be able to remove the short by arcing, but if the short persists then the red tube will have to be replaced. Either way, this is something that should only be done by a qualified tech.
they gona get worse to dead circuit, a small capacitor (problably in the neck board) is bothering you, get a tech now that he can see the problem, gonna be cheaper now....good luck
ps some times the picture say to the tech was going on