Our Samsung LN40B500P3f TV screen is black; audio works fine. If I turn TV off and then back on the picture does display for a few seconds but then screen goes black and stays that way. Any suggestions as to what needs to be replaced?
The set will need to be properly diagnosed to narrow down the problem. You could be looking at a bad inverter, bad CCFL lamp, fault in power supply or main board.
Thanks it is helpfull
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SOURCE: I have a 32
i know your problem. its an inverter loose connection from CCFL to inverter output. back of your LCD inside the TV. try to remove and re-connect again. be sure no power and AC is unplugged. [email protected]
SOURCE: Sony kdfe60a20 - The TV turns on but after a
classic Sony telling you the lamp is going bad. Replace lamp yourself it is consumer replacable.
SOURCE: DIBOSS tv shows no picture
Me too! Apparently Diboss are no longer trading, so no help there. I am aware that these panels have a common power supply issue, the faulty chip is only available from China and the last one I fitted only lastest a couple of days. However the fault described above is not the same. I've checked the psu outputs; all are fine and nothing changes when the picture disappears, therefore I can assume that I'm not looking at a PSU fault. As Iain says above, it appears to be a signal link, however I have no picture on ANY input and without circuit diagrams I cannot find any component that's common to all the various inputs. This leads me to think that either the backlight, or the screen itself is faulty. I'll keep trying and if I get it sorted I will report back.
Jon
SOURCE: Screen goes black, still have audio
I first changed the 220uf capacitor with no luck. I flipped the BURN switch to on and the set has been working great for a week now. Daughter left it on for about 20 hours overnight with no problem. Anybody have an idea what those 4 tiny switches are for? I have heard these type of switches called "dip switches". They are tiny white switches in a yellow block on the lower left side of the upper circuit board. The top one was labled 40", the next one down was labled 46", the 3rd one was 4 letters "EW" something I think, and then the bottom one was labled "BURN".
SOURCE: I have a KDF-E60A20 TV and the picture and audio
Your lamp is about to pack up. change it. Check out at www.fixurtvs.com
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