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Rear Projection Units

justlou's Avatar justlou
10:26 AM Liked: 19
post #14881 of 14914
06-18-2014 | Posts: 265
Joined: Feb 2008
Quote:
Originally Posted by randyr5 View Post
I was reading some earlier posts about some people attaching a Thermaltake Mobile 12 USB powered fan to the side vent by the sub board and LED's to provide extra cooling. Did you plug it into the set's USB port or a USB wall adapter for power?
The fan uses very little power (4v and under 100mA I believe), and I've had mine hooked up to the TV's USB port since 2010. It works great this way, as it goes on and off with the TV's power.
randyr5's Avatar randyr5
11:00 AM Liked: 10
post #14882 of 14914
06-18-2014 | Posts: 18
Joined: Mar 2008
Thanks JRWalker and justlou. I will probably use the TV's USB for now.
randyr5's Avatar randyr5
07:54 PM Liked: 10
post #14883 of 14914
06-19-2014 | Posts: 18
Joined: Mar 2008
On my HLT5087 purchased in March 2008, I am on my third red LED. The 2 bad ones were replaced under an extended Mack warranty that I bought for $105, so I made out on that. I replaced the DLP chip about a year ago, from a 6103 to a 6143. The old one only had one white dot, but it was right in the middle of the screen and it drove me nuts. The picture is stellar right now. Now I have the three flashing LED's on the front panel when the set is off, but it is working fine right now. I might go ahead and replace the caps on the 2 power boards.

My brother has owned a HLT6187 since January of 2008 and has had zero problems.

Looks like I missed the boat on the settlement, or is Samsung still doing exchanges?
randyr5's Avatar randyr5
02:31 PM Liked: 10
post #14884 of 14914
06-20-2014 | Posts: 18
Joined: Mar 2008
OK, I swapped out my sub power board and the LED driver board (HLT5087SAX/XAA). Still getting the flashing LED's when set is turned off. It turns on fine, there is no delay in attaining a picture, and the picture is perfect. Any suggestions? Should I check the main power board? It is delivering the correct voltage to the sub board (323VDC). Thanks...
randyr5's Avatar randyr5
04:32 PM Liked: 10
post #14885 of 14914
06-25-2014 | Posts: 18
Joined: Mar 2008
I was just checking some of the output voltages on my sub power board. There are 3 pins marked 16V and 1 marked 12v. These are the pins that get connected to the LED driver board. The 16V pins are reading 13.8v. Is that normal? The service manual isn't much help on this. Thanks...
randyr5's Avatar randyr5
09:21 AM Liked: 10
post #14886 of 14914
07-03-2014 | Posts: 18
Joined: Mar 2008
Are the 3 cooling fans specific to the TV (HLT5087) or will any 3-wire PC fan of the same size work?
JRWalker's Avatar JRWalker
08:09 AM Liked: 47
post #14887 of 14914
07-13-2014 | Posts: 527
Joined: Apr 2007
These are off the shelf fans. You should find a sticker on the fan blade hub with the manufacturer and specs.
Hank's Avatar Hank
06:19 AM Liked: 16
post #14888 of 14914
08-19-2014 | Posts: 172
Joined: Jan 2002
Quote:
Hank,

Glad when I can help.

You can do for me as Rodney suggests http://www.youtube.com/watch?v=Bd37uQZJpwQ in the form of a thumbs up.

Jim
Jim, that Rodney Dangerfield bit was hilarious. I hereby give you "One uh deese!"
Well, I finally have a problem with my HLT6187. All of a sudden there are about a dozen little white spots that are probably the dead/stuck mirror problem. I'll search this thread for replacement instructions and part number to order from Shop Jimmy. My red LED is still working after all these years, but as I posted before, I have a replacement ready for that fateful day. I do have Arctic Silver that I bought with the replacement red LED. As long as I'm going to replace the DMD, I'll look at the electrolytic capacitors and if I see any bad ones, they'll be on a specific board, correct? What is the value and voltage of those that are prone to failure? I want to order some replacements in case I find some bulging ones. Thanks again to Jim and the other guys who stick around to advise on repairs.
JRWalker's Avatar JRWalker
01:31 PM Liked: 47
post #14889 of 14914
08-20-2014 | Posts: 527
Joined: Apr 2007
Hank,


Thanks for your "One uh deese!". They are always appreciated.


You can check the Sub-Power board behind the small back access door for the most often failed caps. This can be done without removing back of set. Pictures and caution in earlier posts. If you see any bulging caps replace them all on the Sub-Power board while you are at it.


Others have posted about capacitor replacement kits available. Believe one has 5 and another 19. Don't have sources or values at hand but scan back in the thread and you will find them. Also, I assume that you have seen the post about the DMD video and the importance of cleaning the fans and accumulated dust. That will extent life of LEDs and electronics. Also, carefully clean the lens and mirror when you replace the DMD. Cleaning those will improve picture quality and are worth doing.


Jim
romhog's Avatar romhog
05:42 PM Liked: 10
post #14890 of 14914
08-23-2014 | Posts: 22
Joined: Feb 2009
I have a dead hlt6187sxx and found a used model with the exact model and version as well The only thing is its 50". Im almost certain it has the same main board and DMD , etc.. But just wanted to make sure. I want the parts from the TV to Frankensamsungy mine back to life. Should I be good to go with interchangeability?
Thx in advance!
BearGator56's Avatar BearGator56
10:07 PM Liked: 10
post #14891 of 14914
08-25-2014 | Posts: 241
Joined: Nov 2003
Haven't looked on here in a few years, but thought I'd catch up since my set is now exhibiting the black shadow line on the left hand side. I'm going to attempt the adjustment fix posted in here and see if that works. I read elsewhere that it was something about the light box collapsing, but not sure what that's all about.

I have the 6189 model, which was an extended warranty replacement for a 2005 62" Mitsu DLP that had far too many issues in the 3 years I owned it. It's been a GREAT TV up until this black line thing. No LED, on/off issues. I agree with most that the picture quality is outstanding. When I'm in stores, I just don't see the same pop and detail that this set offers. I really don't want to grab another set just yet. Most of what I see out there doesn't have the matte non-glare screen, and reflections but the crap out of me. Although the Sharp 70" 4k set looks pretty good...

If anyone has any new info about the black line, please chime in. I'm curious to know what's really causing it and it will be a few days before I can pull the panel off.
BearGator56's Avatar BearGator56
01:39 PM Liked: 10
post #14892 of 14914
08-30-2014 | Posts: 241
Joined: Nov 2003
I was able to make the picture adjustment to get rid of the shadow on the left, but noticed that the black capacitors appear leaky and swollen on the board facing out on the left side of the screen.

Sent from my SM-G900V using Tapatalk
Pacerfan9's Avatar Pacerfan9
09:21 PM Liked: 0
post #14893 of 14914
09-01-2014 | Posts: 1
Joined: Aug 2007
Quote:
Originally Posted by bwflorida View Post
HL-T6187 SEARCHING FOR SIGNAL PROBLEM
I'm really hoping someone else has had this problem and knows how to solve it.
When my HL-T6187 is first turned on in the morning, the Searching For Signal screen flashes for 2.5 minutes before the picture displays.
During the day, when it's turned on after being off for an hour or two, the picture displays more quickly, usually less than a minute.
The picture source is the Xfinity X1 box.
In the X1 box Device Settings, Output Resolution is set to 1080P60
A TV guy told me it might be an HDMI handshake problem, and that a firmware update might solve the issue.
The current firmware version is 1008, dated 2007-09-19.
I've downloaded the latest firmware dated Apr 17 2008, but I'm pretty happy with the picture -- when it finally displays -- so I don't want to update the firmware if that might affect my picture but not solve the Searching For Signal problem.
Any suggestions ? ? ?
I have the same issue. Were you able to get this fixed or does anyone know how?
StealthscrapE's Avatar StealthscrapE
04:08 PM Liked: 10
post #14894 of 14914
09-04-2014 | Posts: 38
Joined: Aug 2007
Hello. I feel silly asking for help with this seeing the other problems that people have with this set. Thankfully I haven't had them, but hopefully that isn't due to not using it as much since it isn't my main TV and I'm just delayed on the issues.

I have an issue with the Light Effect on the TV. It continues to reset itself to 'Always On' after about 20 minutes after changing it. I can not seem to get it to stay off and it even changes the setting when the TV is off. I searched around and only found one similar case which had no resolution. Any help you guys may have would be much appreciated.

[ Samsung 4071F ] - Blue light effect keeps turning itself on?
a68oliver's Avatar a68oliver
09:34 AM Liked: 10
post #14895 of 14914
09-05-2014 | Posts: 121
Joined: Jul 2000
Quote:
Originally Posted by StealthscrapE View Post
Hello. I feel silly asking for help with this seeing the other problems that people have with this set. Thankfully I haven't had them, but hopefully that isn't due to not using it as much since it isn't my main TV and I'm just delayed on the issues.

I have an issue with the Light Effect on the TV. It continues to reset itself to 'Always On' after about 20 minutes after changing it. I can not seem to get it to stay off and it even changes the setting when the TV is off. I searched around and only found one similar case which had no resolution. Any help you guys may have would be much appreciated.

[ Samsung 4071F ] - Blue light effect keeps turning itself on?
My first thought was also Store Demo Mode.
bwflorida's Avatar bwflorida
04:12 PM Liked: 10
post #14896 of 14914
09-08-2014 | Posts: 13
Joined: Feb 2008
Quote:
Originally Posted by Pacerfan9 View Post
I have the same issue. Were you able to get this fixed or does anyone know how?
No fix yet. I even had a TV guy replace the caps on the power supply board, but that didn't eliminate the flashing LEDs. The picture's still great so I just keep enjoying it until something else fails.
randyr5's Avatar randyr5
02:39 PM Liked: 10
post #14897 of 14914
09-21-2014 | Posts: 18
Joined: Mar 2008
Quote:
Originally Posted by bwflorida View Post
No fix yet. I even had a TV guy replace the caps on the power supply board, but that didn't eliminate the flashing LEDs. The picture's still great so I just keep enjoying it until something else fails.
Same here - flashing LED's, replaced caps, still flashing, but the TV works perfectly.
hdtvbostonma's Avatar hdtvbostonma
06:17 PM Liked: 10
post #14898 of 14914
09-29-2014 | Posts: 194
Joined: Dec 2005
I haven't posted here for a long time, because my HLT-5089S has been nearly flawless.
Today, I noticed a dead (white) pixel in the lower-middle of the screen. It's driving me nuts.

What causes this?
Can it be fixed?
If so, how expensive is it?

Thanks,


Peter
justlou's Avatar justlou
11:05 AM Liked: 19
post #14899 of 14914
10-04-2014 | Posts: 265
Joined: Feb 2008
Quote:
Originally Posted by hdtvbostonma View Post
I haven't posted here for a long time, because my HLT-5089S has been nearly flawless.
Today, I noticed a dead (white) pixel in the lower-middle of the screen. It's driving me nuts.

What causes this?
Can it be fixed?
If so, how expensive is it?

Thanks,


Peter

You need to replace the DLP chip. That one dot will rapidly become many dots. If you do it yourself, the chip is around $180. Replacing it isn't difficult if you've ever replaced a computer CPU, and there is a step by step video located someplace in this thread and on YouTube.

http://www.amazon.com/Samsung-Mitsub...cm_cr-mr-title
2&2's Avatar 2&2
02:09 PM Liked: 10
post #14900 of 14914
10-18-2014 | Posts: 58
Joined: Aug 2002
Hi, I just noticed a small black speck n the bottom right of my screen. It' bigger than pixel size, so it's a noticeable annoyance. I can confirm it's not on the screen itself. If I push in the screen a tiny bit the speck still stays in the same relative spot and doesn't move with the screen. It's asymmetrical, so I suspect it is some dirt or dust somewhere on the inside.

Is there a panel or section I an remove to to blow some compressed air or try to blow dust or debris that might be inside? I see a few access points, but I'm not sure which if any would easily allow this. Thanks for any help.

Edit: Ugh, from a quick online search, it sounds like a DLP chip going bad(?)
dengland's Avatar dengland
03:01 PM Liked: 13
post #14901 of 14914
10-18-2014 | Posts: 317
Joined: May 2004
Quote:
Originally Posted by 2&2 View Post
Hi, I just noticed a small black speck n the bottom right of my screen. It' bigger than pixel size, so it's a noticeable annoyance. I can confirm it's not on the screen itself. If I push in the screen a tiny bit the speck still stays in the same relative spot and doesn't move with the screen. It's asymmetrical, so I suspect it is some dirt or dust somewhere on the inside.

Is there a panel or section I an remove to to blow some compressed air or try to blow dust or debris that might be inside? I see a few access points, but I'm not sure which if any would easily allow this. Thanks for any help.

Edit: Ugh, from a quick online search, it sounds like a DLP chip going bad(?)

Stuck mirror I am afraid.
2&2's Avatar 2&2
03:21 PM Liked: 10
post #14902 of 14914
10-18-2014 | Posts: 58
Joined: Aug 2002
Quote:
Originally Posted by dengland View Post
Stuck mirror I am afraid.
Bummer. Is a stuck mirror the "bad DLC chip" problem that is fixed by installing a new one?
I only see one black speck right now, but I'll just keep an eye on it and see how bad they get before doing anything. I've put PCs together, so hopefully if it gets real bad I'll give replacing it a shot.
dengland's Avatar dengland
05:15 PM Liked: 13
post #14903 of 14914
10-18-2014 | Posts: 317
Joined: May 2004
Quote:
Originally Posted by 2&2 View Post
Bummer. Is a stuck mirror the "bad DLC chip" problem that is fixed by installing a new one?
I only see one black speck right now, but I'll just keep an eye on it and see how bad they get before doing anything. I've put PCs together, so hopefully if it gets real bad I'll give replacing it a shot.

Yes it is. Hopefully, it will get worse very slowly
bwflorida's Avatar bwflorida
07:11 PM Liked: 10
post #14904 of 14914
11-25-2014 | Posts: 13
Joined: Feb 2008
Quote:
Originally Posted by Pacerfan9 View Post
I have the same issue. Were you able to get this fixed or does anyone know how?
Yes, here's how I fixed my HL-T6187.
First, a TV Tech replaced the swollen caps on the power supply board. I don't know the part number, but it's the one on the right, looking at the back of the set.
However, that did not stop the flashing LEDs, so the Tech pulled the other power supply board, part number BP44-01001C, the one on the left side, and he noticed that it appeared "burned" like it might have been hit by an electrical surge.
That board's discontinued and was not easy to find, but I kept searching online and finally got one from AllProTVParts.com.
The Tech installed it today, and the LEDs are no longer flashing, and the sudden shut-off problem has gone away too.
I think that replacing both those power supply boards should probably fix your set too.
bwflorida's Avatar bwflorida
07:18 PM Liked: 10
post #14905 of 14914
11-25-2014 | Posts: 13
Joined: Feb 2008
Quote:
Originally Posted by randyr5 View Post
Same here - flashing LED's, replaced caps, still flashing, but the TV works perfectly.
Yes, here's how I fixed my HL-T6187.
First, a TV Tech replaced the swollen caps on the power supply board. I don't know the part number, but it's the one on the right, looking at the back of the set.
However, that did not stop the flashing LEDs, so the Tech pulled the other power supply board, part number BP44-01001C, the one on the left side, and he noticed that it appeared "burned" like it might have been hit by an electrical surge.
That board's discontinued and was not easy to find, but I kept searching online and finally got one from AllProTVParts.com.
The Tech installed it today, and the LEDs are no longer flashing, and the sudden shut-off problem has gone away too.
I think that replacing both those power supply boards should probably fix your set too.
bwflorida's Avatar bwflorida
08:24 AM Liked: 10
post #14906 of 14914
11-28-2014 | Posts: 13
Joined: Feb 2008
Anyone have this problem with their
HL-T6187SAX/XAA?
When first turned on in the morning: the Searching For Signal screen flashes for two to three minutes before the picture displays.
A TV Tech said I need to replace the main board, but I'd like to get a second opinion before doing that.
Would a new main board solve that slow startup problem?

Thanks for any suggestions!



justlou's Avatar justlou
03:08 PM Liked: 19
post #14907 of 14914
12-06-2014 | Posts: 265
Joined: Feb 2008
Quote:
Originally Posted by bwflorida View Post
Anyone have this problem with their
HL-T6187SAX/XAA?
When first turned on in the morning: the Searching For Signal screen flashes for two to three minutes before the picture displays.
A TV Tech said I need to replace the main board, but I'd like to get a second opinion before doing that.
Would a new main board solve that slow startup problem?

Thanks for any suggestions!

If you're getting a "Searching for Signal" screen, then I don't think the issue is the TV's boards. I would try connecting a different source, with a different cable, to a different input, and see if it still searches for signals. If it doesn't, then you know the issues isn't the TV unless it's a bad input.
arthurwv's Avatar arthurwv
07:28 AM Liked: 10
post #14908 of 14914
12-27-2014 | Posts: 2
Joined: Dec 2007
I haven't been on here for years. I posted this previously: 08-30-2009
I have a 5687s and the red LED failed a couple of days ago. I've had the tv since Dec '07. I haven't checked the hours of usage, but it has to be less than 2000.

I had the the red LED replaced for ~$250. It lasted until the other day. My wife wants a new tv. What do you think I should do with this one?
Thanks
Andy
dengland's Avatar dengland
10:54 AM Liked: 13
post #14909 of 14914
12-27-2014 | Posts: 317
Joined: May 2004
Quote:
Originally Posted by arthurwv View Post
I haven't been on here for years. I posted this previously: 08-30-2009
I have a 5687s and the red LED failed a couple of days ago. I've had the tv since Dec '07. I haven't checked the hours of usage, but it has to be less than 2000.

I had the the red LED replaced for ~$250. It lasted until the other day. My wife wants a new tv. What do you think I should do with this one?
Thanks
Andy
If the wife wants a new TV, go buy a new TV. You can get a few more inches while you are at it (I lost an inch in the transition from 61" DLP to 60" LCD). Bigger is better. Do you need a wide viewing angle? If no, then current LCDs are fine. Audio is a tad worse, but not enough to keep throwing money into the DLP.


Samsung ran away, now it is your turn.
justlou's Avatar justlou
12:01 PM Liked: 19
post #14910 of 14914
12-28-2014 | Posts: 265
Joined: Feb 2008
Quote:
Originally Posted by arthurwv View Post
I haven't been on here for years. I posted this previously: 08-30-2009
I have a 5687s and the red LED failed a couple of days ago. I've had the tv since Dec '07. I haven't checked the hours of usage, but it has to be less than 2000.

I had the the red LED replaced for ~$250. It lasted until the other day. My wife wants a new tv. What do you think I should do with this one?
Thanks
Andy
What to do with it is really up to you. I sure wouldn't put another $250 into again. I'd either replace the red LED myself, or part it out. I have well over 20K hours on my 6187, and hope to keep it working until OLED drops in price. I clean mine out annually, and added supplemental cooling.
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