Question about Samsung HLR5667W 56" Rear Projection HDTV
I have a Samsug 56 DLP HLR5667W that has recently displayed blinking green, red, yellow squares across the screen at an angle when I turn the tv ON (the picture is relatively clear and the color is good). This only occurs when I have the tv switched to antenna input - If I switch to the cable iput - I can't even see a picture, the screen displays (5) multi-colored vertical lines and a variety of wide/narrow horizontal bands. If I pull the 120 V plug on the tv for a reset - sometimes it comes back on clear with no issues and other times it doesn't. This only occurs when I turn the tv ON. If it starts that way - it stays in that mode
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Posted on Jan 02, 2017
SOURCE: dlp vertical lines
the person you talked to at samsung is more than likely a customer support rep that does know anything but what his computer tells him. i have seen this symptom several times in many makes and models. if you can give me your full model number i will give you a part number to fix this issue.
Posted on Oct 24, 2007
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
What you are sseing is a convergence problem within the light engine of the set. This is not repairable in teh field other than replacing the light engine part. Since this unit is less than one year old, it should be covered under warranty. From the looks of it, one of the LCD panels has shifted internally. Call for warranty service and indicate that the light engine has a problem. With luck, the service company will show up with the part in hand. Replacement should not take more than an hour or so.
Posted on Aug 28, 2008
There should be a jumper somewhere around the color wheel. I am having a problem with my color wheel, and after doing a lot of research I found that people that have the same problem as you changed the jumper setting. Try looking it up here on the net. Should solve your problem.
Posted on May 24, 2009
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