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My Samsung DLP Keeps Turning Off! Why?

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Old 01-17-2010, 03:27 AM   #31
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Default Blu-ray Home Cinema HT-BD1255W

Wish I'd seen this forum before I bought the latest and greatest (or so I thought) Blu-ray system (HT-BD1255W) from Samsung.
Only had the thing for 6 weeks and, you've guessed it, it now switches itself off after about 2 minutes with the helpful 'PROT' message on the screen. Tried contacting Samsung support - obviously only Mon-Fri hours and half day on Saturday. "My Samsung" website also throwing up a server error.
I can't believe the thing is overheating - it has so much space around it, it must get lonely!
Hopefully Samsung will come to the rescue when they can be bothered to provide customer support tomorrow!
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Old 01-19-2010, 10:47 AM   #32
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Had the Light Engine replaced yesterday - the problem is FIXED! This is an expensive repair job if doing yourself and the tech couldn't tell me if it was more the color wheel or the DLP chip that was the cause of the issue. Thank god for the extended warranty!

Good luck guys!
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Old 07-26-2010, 08:11 PM   #33
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Default HLP5063w only turns off when using DVD or Wii. Huh?

My HLP5063w..which I have had for over 5 years has been turning off recently. The weird thing is...It NEVER switches off when watching cable TV off of my DVR.
It only switches off when either watching a DVD or playing the Wii.
How can an input make a difference?

It doesn't always turn off....but has been recently. I could not even watch a DVD the other day because of the constant interruptions. Seems to happen more when watching a DVD (DVI input) as opposed to the Wii (Component).
Cable's input is HDMI.

Help!!!

Thanks
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Old 09-06-2010, 01:04 PM   #34
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I hope this helps somebody. My samsung 72" dlp would turn off and on. The remote could not turn it off so i had to unplug it. The image would last a few seconds then turn off then on. This would happen repeatedly until the red and green lights would start blinking then no image. The solution that helped me was I replaced the power board, ballast and lamp. Make sure the ballast you get is the same exact one as in your tv (I used a replacement one at first and it produced a flickering color image, but the TV was on and didn't turn off). If one of these components was not replaced it would continue with the same problem. The lamp was only a year old it worked fine, but for some unknown reason all three had to be replaced. My tv is working fine now. This isn't cheap, all three cost me almost $400 including shipping. My TV is 1.5 years old.
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Old 09-07-2010, 05:39 AM   #35
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I have an old 2004 Samsung 46 inch dlp, and found early on that the
switch within the door to the lamp sends mixed signals, and will some
times shut the set off. I fixed the problem by adding a little electrical
tape to it. It makes the sw just a little bigger, making the dlp not
allowing the switch to go to the off position as easy. Mine hasn't
shut off by itself in years.
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Old 10-04-2010, 11:38 AM   #36
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Our 50" Samsung DLP will be 4 yrs old in December. It just started turning itself off about 2 months ago. It has probably happened about 7 times over the past 8 weeks. We will take all of the suggestions on this thread into account and hopefully the problem will be solved without having to call in a tech!
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Old 10-04-2010, 01:10 PM   #37
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Good luck & hopefully those ideas will work for you. I wonder if it is a heat issue so make sure you vacuum out the air vents first to see if that fixes the problem.
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Old 10-06-2010, 12:39 PM   #38
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Smile Fixed Mine

If your Samsung DLP keeps turning off, please read this, a small piece of tape can safely and effectivly fix the problem and save you lots of time and money.

Remove the lamp access panel, tape the blue door switch to the DOWN position, put the access panel back on.

After about 4 years, my Samsung DLP started turning off by itself. I figured that years of dust buildup was causing overheating issues. I used some canned air and sprayed everything out.
DO NOT spray when the lamp is hot or if the tv is plugged in or on, doing so will create new problems for you including the lamp breaking or shorting out circuits. I myself became very frustrated and impatient one day and sprayed air in the rear while the tv was on, luckily, after a fireball shot out the back of the tv and everything turned off, it somehow still worked and came back on. It was a stupid mistake that nearly cost me a tv.
Also, do not make the incorrect assumption that just because it is unplugged, that there are no electical hazards, that asumption is wrong. Capacitors hold electric charges, even while unplugged, a hand or tool can complete a circuit and it will release the charge, this can damage your tv and seriously injur you. Do not try getting your hand or a tool back through little gaps trying to clean things off or just to look around, you can electrocute yourself on an unplugged tv, and other electric devices.
I have also read several posts about disconnecting the heat sensor, DO NOT do that. If your tv is actually overheating, it is what is protecting the tv from burning out and your house from burning down.
After dusting and making sure all of the fans still worked, I had about an hour that I thought the problem was gone. It was not, it kept turning off.
Next I moved on to the lamp, they do have a lifespan and are recomended for replacment after around 4 years, which was about how old mine was. If you need one, you will probably have to order it online, they range from $70-$200, shop around, I got mine from mwave.c for $80.
WHEN ORDERING A LAMP get the part number off of the sticker on the side, or rear of your tv, it says "LAMP" and lists the part number. I ordered mine based on the tv model number, I have come to find that every website has the wrong lamp, and housing, listed for my model tv. Fortunatly while the housing didn't fit, the lamp was the same so I changed it out in the old housing. Many sites offer, for up to
$70 extra dollars, a lamp in a housing, DO NOT PAY FOR A HOUSING unless you really need one, swithing the lamp in the old housing involves 6 philips head screws and about 30 seconds, it's as much work as taking the housing out of the tv.
Unfortunatly, changing the lamp also DID NOT stop the tv from turning itself off, however it was a worthwhile purchase, the picture is brighter and everything looks sharper, comparing the old lamp to new, you can see a haze on the old mirror and glass cover which would affect the light output.
Anyway, now with a dust free, fans working, new lamp tv, the thing still kept turning itself off.
I had read several posts about the door switch being an issue for people, I didn't think the symptoms had anything to do with it, the flashing "lamp" and "temp" lights in the front of the tv had me convinced those were the problems.
Apparently, the correct position for the switch is down, once the cover has been removed, it is almost impossible to put the cover back on with the switch down, that is where the tape comes in.
I didn't have anything to lose and it didn't cost anything to try so I taped it down and put the cover back on. It has been 2 weeks so far since doing it and that tv hasn't turned itself off since, it was previously turning off about twice and hour so I feel pretty good that the problem was the closed position of the switch. The fact that it developes into a problem over time has something to do with the expanding and contracting of parts and plastics over years of use and the switch supposing to be down instead of up.
Hope this helps someone.
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Old 10-18-2010, 06:40 PM   #39
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also i took the samsung and was working on it today at work, i took off the lamp cover and tripped the switch with a screw driver, and reseated the lamp and the tv turned on and worked i watched a movie and it played sound and worked great so i turned it off and turned it back on and it worked the second time but third time was not the charm, now i have just the green blinking lamp light again, fans turn on but the color wheel does not spin, anyone know why, or is there any way to check voltages on points to make sure its getting the required power? its a brand new color wheel and bulb so those should not be a problem.

Last edited by deadlydayne; 10-19-2010 at 03:03 PM. Reason: new info
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Old 10-20-2010, 07:17 AM   #40
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any ideas on my prob? plz help. again just for more detail, my samsung HLN4365WX/XXA. I have replaced the bulb (brand new >1hr on it) And ive replaced the Color Wheel (again brand new >1hr on it) and it still does not work, the green lamp led on the front of the tv just blinks on and off constantly. The only way to turn the set off is to unplug it. i tried entering service menu to see if the bulb just needed reset. The tv set turned on and i heard the startup tune but the led kept blinking and nothing happened. While working yesterday i started messing with the samsung again, i opened the lamp cover and tripped the door switch with a screw driver and pulled out the lamp and reseated it, turned the set on and it worked for about two minutes. I shut it down and tried restarting it and it worked a second time. Pleased with the results i started reassembling the tv and turned it on once more and now i have the same problem. So i broke down and took the tv completely apart, when i turn the power on the only noise is the cooling fans. the color wheel does not spin. i checked the voltage from the power to the ballast and it has the appropriate amount. i do not know what is wrong and why my color wheel will not spin. please help. thanks,
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Old 10-20-2010, 10:28 AM   #41
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Could be a door switch where you replace the lamp is not closing properly.
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Old 10-20-2010, 10:39 AM   #42
How can anyone watch standard def?
 

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i have tested the switch multiple times, idk could be it. i know this sounds hackish but what it i cut the switch off and solder the two wires together? wouldnt that serve as a closed circuit switch?
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Old 10-20-2010, 11:11 AM   #43
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Or just jump the connection so it can be removed later if needed.
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Klipsch RP-5 Pwred Towers (mains) (525 watts peak each 12"Subs)
All Klipsch RC-25(ctr),(2)SS1(surr),(2)SS1(rearSurr)
Toshiba (2)HD-A20,PS3,BD35
For SACD/DVD-A Samsung HD-841
Panny 50pz80u plasma
SETTINGS
RCA HD50LPW162 50"DLP w/HD2+
SA 3250HD
47" LCD+Yamaha5790+HD-A1(bedroom)
Harmony 680 + (2) 670s (amazing remote/support)
Game room with Onkyo receiver & B&W Speakers
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Old 10-20-2010, 11:17 AM   #44
How can anyone watch standard def?
 

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ok that wasnt the problem, sadly i would have wished it be. my luck it'll be one of the boards
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Old 10-20-2010, 02:45 PM   #45
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so the lamp door switch works because the tv registers it when the lamp door is open. so i completely tore the tv apart, all boards everything out of it. al seems to be well, everything looks good. now whilst looking everything over i saw on what appears to be the main power board. there a massively big capacitor made by samwha, its green and gold. unlike the other capacitors the metal top seems to be covered with plastic and is bulging at the top. i dont know if its just the way the cover is. it looks like a 450w. i have a couple pics but they are from my phone. could this be the problem?
pm me and ill send the pics
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