Question about Samsung DLP HL-P5663W 56" TV
My 46 inch DLP picture goes black after an hour or so. If I turn off the TV and back on the picture comes back for a few minutes and then goes black again. TV still has power, sound and the bulb is still on.
I taken off the back panel and cleaned the inside around the fan.
Hi there!Take it back to where you purchased it from,that's if it is still under warranty. If its not,ask them to give you the details of the technician they usually take their out of warranty items.I work from a furniture store and that's what we do.if its a local supplier,then they'll still charge you for repair since its out of warranty. Hope this helps!And don't switch it on again the problem may develop to worse.
Posted on Jan 11, 2018
Considering it runs for an hour then fails it must be a heat issue, the heat builds up then it starts to fail. Have you checked that the fan is actually running after cleaning it? Its usually pretty easy to hear and you should feel airflow from it, and it should be moving a good amount of air. The only other suggestion i could make is something on the main circuit board inside is getting hot/failing, could be bad capacitors, could just be dust buildup, but since you said you cleaned inside i wouldn't think its buildup anymore. It might just be something failing from age. I know i post this over and over about TV's on Fixya, but THE MOST common issue i face with any TV repairs is generally failing/leaky capacitors on the power supply. I keep a large box of various values of capacitors and its about a 99% success rate fixing them by replacing aged capacitors.
Another thing you can try, let it cool of a while, remove the back cover and leave it off and put a small fan nearby blowing in, then turn it on and see if it stays on longer, that could help rule out a cooling problem also.
Posted on Jan 11, 2018
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Posted on Jan 02, 2017
This is a possible fault in the power supply, and can be a problem with some decoupler caps on some of the boards. The vertical bars and unstability are usually attributed to having high frequency noise and or clocking pulses crosstalking on to the power distribution lines that run through the boards. This can be switching power supply noise, or cross-talk from clocking pulses.
Another thing that can cause your described fault is unstable clocking between the devices that are reading and writing to the data busses. There are a number of data busses running through the set for the boards to be able to communicate with each other.
The tech will use the process of board swapping to service the set, and then do the adjustments as necessary to make sure the new boards match up.
Yes... DLP sets are fairly expensive to service!
This is my personal opinion. If the set is out of warranty, I would change for a Plasma or LCD set. If you compare the performance of these to ther DLP, the difference is very big. From what I am seeing from a service point of view, the DLP's are lower in reliability.
Posted on May 06, 2008
Highly unlikely the bulb could be at fault; it sounds a lot like a defective DLP chip. If you are not aware of how this device functions, it is an array of physical mirrors which can fail individually and cause the effect you are having. The bulb failing would cause a loss of the entire screen, not just a few points.
Posted on Jul 05, 2009
Once before I had this same problem and FixYa gave me the solution. When you replace the lamp door, there is a switch inside so be sure the door is put in at an angle so to hold the switch up. It solved my problem after numerous repairmen missed it.
Posted on Sep 05, 2009
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