Samsung DMD board replacement - Page 9

Sorry for all the multiple posts - but FYI, I've taken everything apart and put it back together and the fuzziness / blurriness / out of focus thing continues. I've futzed with the focus alignment per the manual uploaded, and I still can't figure out what I've done wrong. Any help would be greatly appreciated.

BTW, if I can't fix it, I'll return the DMD part, but was wondering if any of you had any experience taking apart the HLS and selling the spare parts on eBay.

I purchased my Samsung HLS46765 in March 2007. First went the lamp in March of 2009 then the white spot appeared then they kept on multiplying. I don't have to look at the sky now just look at my tv and see the galaxy. Luckily, I have a 4 year warranty from the store. I called Samsung and got the same run around. "they never heard of this problem" He asked me "why am I complaining when I have the warranty." He then told me that when the new part is installed that problem will never happen again. Hmm what does that mean? Is the original part defective? I told him that Samsung should be professional and have a recall. Didn't get very far. The tech came and told me that the store is going to replace the tv and I can go in and get another one. I don't know yet if I have to get a Samsung. If not good-bye Samsung hello Sony. They have a customer service department that is great! Sorry to all that have this problem. It's not fair that we spent a lot of money and in two years the set goes.

here's the conclusion to my samsung DLP adventure:

in an effort to try to get samsung to take care of this problem, i pretty much did everything they asked of me, which wasn't much, honestly. the only really painful part was arranging with my work to work from home one day and me paying $85 for the certified repairman to come out and give me an official estimate. since i wasn't going ahead with anything without samsung's approval first, i told the repairman to just give me the estimate and i'd get back to him. his estimate listed the repair price at somewhere around $400 including parts. labor alone was $200. ouch.

after talking with samsung, they offered to pay for the part only, and not the labor. i tried to escalate this even further, but came back with nothing. i get the part for free, but i am responsible for the labor, which didn't seem like a big deal since after reading this thread, i was confident i could replace it myself. eventually i agreed to go this route, and called samsung to take them up on this semi-fair offer. i'd take the part and replace it myself. a free part and 90 minutes of my time didn't sound like such a bad deal. but when i asked them how i can get the free part, they said i was required to get it through the certified repair place and the repair place had to replace it themselves. so, they were asking me to pay $200 on top of the $85 i already paid, and they would throw in the part for free.

not only was this the first time they mentioned the repair place requirement to me, but the samsung guy on the phone insisted that i mis-heard the original offer. i went back to my answering machine and the offer specifically was "as a one time courtesy, we can pay for the part, but you will be responsible for the labor." i guess this might be ambiguous but i clearly thought it left room for me replacing the part myself. i didn't mis-hear anything.

eventually i got the part and replaced it myself. it took me about two hours to replace the chip, a little longer than most of you since i had trouble getting the spring clip off the heat sink. (i also spent about two more hours re-aligning the DMD Board since stupid me went ahead and unscrewed the screws they specifically said not to touch.)

i might be imagining things but i feel like the new DLP chip is giving me significantly more screen-door effect, especially in shadows. it's annoying me. or maybe i just hate my tv now because it's samsung and i now hate samsung.

well, suffice it to say that i will not be buying any more samsung products. not only do i find this feigned ignorance of this DLP chip problem a severe breakdown in customer service, but this tv is the third samsung electronics product i have owned to break or die on me. three out of four samsung electronics products total. a 75% failure rate is enough of a pattern to tell me that samsung is a waste of money.

thanks, again, Pez and Joe and all other contributors to this great thread. you've helped me a lot!

Either DMD chip or the DMD board failed. But can happen with dirty PSU (bad capacitors) or rarely mainboard. This is diffcult repair unless you get a junker chassis to swap parts till you isolate the problem or different problem comes up then bad part is the cause of the dots issues.

DMD board usually is distorted, noisy PQ or shutting down. DMD chip usually is noisy dots or no picture at all, even solarization with unchanging black dots all over. Even flashing LED codes.

Owning a DLP and extended warranty is important because these parts are expensive unless you luck on a junker unit under 400 with same chassis to take parts from.

Cheers, Wizard

I FINALLY got my chip from Samsung the other day and swaped it out yesterday. My set was a little different that the manual, but the parts were essentially the same. Only took me an hour and my set is like new again. Thanks so much to Pez and everyone for their help. I'm still working on Samsung Canada to get reimbursed for the part (ran me over $200 cdn). Samsung US won't have anything to do with me because I'm a Canuk
I was going to try and video it, but I was working solo and couldn't manage. The repair manual was a huge help.

while i'm not happy about spending 175 and a couple/three hours, it's better than the 1200 to replace it. looks perfect. One warning, DO NOT mess with the 3 screws that are circled on the instructions. they are the alignment screws. i wasn't paying attention and it cost me about 1.5 hours. good luck, not too bad otherwise.

Got my chip earlier today, took less than a week to get it! I ordered from Samsungparts. Anyway, I just finished installing it all, it took me about 2 hours, but I was confused half the time... Everything worked out perfectly and I have my TV back! Trust me, if I can do it, any of you can. The hardest part for me was getting off the damn heat sink, my thumbs are still sore from pushing so hard...

could pez or joe give me the right part # for hl-s5056w tv. i ordered my parts last night and think i ordered the dmd board for pb01 instead of ordering it for pb02.

Yeah, the best way to do the heatsink is to grab the little spring clip thing on one end with a pair of needle nose pliers. Makes it much easier to push it down and then pull it away from where it hooks on.

Can you double check that model number? None of the parts sites have heard of a HLS5056w.

hl-s5065w. sorry i gave u the wrong one

If you have one of these models, you will need to check the version listed on the right side of the TV:
HLS**86WX/XAA
HLS**65WX/XAA
HLS**66WX/XAA

If you have a Version PB02 the part # you need is 4719-001981

If you have a Version PB01 the part # you need is 4719-001968

i have pb02 and i ordered the one u have listed but when u go to samsungparts.com and due a search it comes up as part # bp96-01580a and not what u have listed. I just wanted to be sure but i did order the one u have listed. Thanks

OK here is the update
Bought the chip from Encompass with the shipping was $174.05
took me just about an hour from start to finish (I knew nothing about taking this apart)
installed the new chip (4719-001981)
DOTS are gone!
BUT....
the screen is not ajusted right seems like the screen "fell" 1/4 down
anybody had this situation yet and how can you fix it?

Aight guys, just ordered the part from Samsungparts.com, they say they have it in stock I have been checking the last couple of weeks and it has been saying out of stock.

I plan on installing it as soon as it comes in and I will try to take some pictures.

Installed chip 4719-001981 yesterday and working like a charm. There was two of us which helped and the installment went smoothly except for a couple of hiccups like one was getting the clip off the heat sink. Even put heat sink compound on the back of the heat sink I got from radio shack. Instructions were great and a tool that really helped was a magnetic flexible screwdriver that can be bent to reach hard to get at places. Didn't touch the 3 adjustment screws and focus is perfect. Both of us couldn't figure out why 4 of the screws that had to be removed had springs around them.

I installed the new chip, but my picture isn't like it used to be. The screen door effect is awful. I also have this light grey cloud on a small part of the screen. Any suggestions?

[Didn't touch the 3 adjustment screws and focus is perfect. Both of us couldn't figure out why 4 of the screws that had to be removed had springs around them.[/quote]

Where were the 3 adjustment screws?
I thought the 4 were them I was backing them out doing all stuff no pictur change I lost close to 1/4 of the screen Dont know how to fix it
Anybody???

Where were the 3 adjustment screws?
I thought the 4 were them I was backing them out doing all stuff no pictur change I lost close to 1/4 of the screen Dont know how to fix it
Anybody???[/quote]

I believe these are the 3 screws (under the type x install) that are circled and noted in disassembly__reassembly.pdf that says do not touch. I just figured these are the adjustment screws but not sure. Sorry cant help with your problem.

I also want to thank Pez and everyone else on this thread!! I now have a great tv again.

I had a couple of issues, I had to replace my lamp and I also had to replace my chip.

I started with 3 white dots and had 10 as of last night.

I ordered the parts a while back from Samsung parts based on everyone's posts. It took me about 2 hours to do the work. I probably would have been done earlier but I had a lot of problems getting that DMD spring off.

Now all my white dots are gone!!

It appears that there seems to be a number of issues with DLP's purchased at the end of 2006 and the beginning of 2007. So it seems like there are lot of bad chips. Samsung should definitely address this issue, but unfortunately they're not doing so.

Thanks again to everyone for all of the help!

Yup, those are the ones!


Download the Alignment & Adjustment.pdf and check section 3-6-1 (page 15). If you have trouble with the procedure, you may see if tdyanksfan can offer any advice... He had to re-align his set after the repair.

the 3 adjustment screws are gold and are accessible through, not in, the DMD Board. these screws secure the metal panel that the DMD board sits in to the optical engine base. the four screws with springs secure the DMD board to the metal panel, and are irrelevant here.

to re-align the picture:

- find a partner if you can. this is a two person job.
- remove the three white plastic tops from the DMD board. they just pop off with a pull. this will reveal the three gold alignment screws.
- loosen, but do not remove the three alignment screws. since these are the only screws that secure the metal plate to the base, these are the only screws that need to be messed with.
- now that it's loosened from the base, slide/shift the DMD plate around and you'll notice the picture moving reciprocally. i.e. slide the plate up and the picture moves down. plate left = picture right, etc.
- i pushed the Guide button on the cable tv remote to display the Menu. the menu is a stable image that has horizontal and vertical lines.
- use a tape measure to measure the lines on the screen against the sides of screen to exactly position the plate so the picture is centered.
- once you get the picture exactly right, slowly tighten the top left screw, then the bottom left, then the lone right screw.

hopefully, after you do that your picture will be ok again. remember that this is a VERY precise procedure. the slightest movements make big changes so be delicate and patient. i was alone so this took me a damn long time to do but it's doable.

i also have massive screen door effect with the replacement chip. i can't tell if it's from the new chip or because i sharpened the focus. apparently, sharper focus means you get more screen door since the lines between the mirrors are not blurred out anymore. i haven't tested it out, but apparently one way to fix it is to blur out the focus a little. ironic, no?

or maybe Texas Instruments just made another crappy batch of chips, and we're stuck with what we have.

Ok since my last post on this forum about a month ago, these are the developed news and the end (sort of) of my saga:

The dots (both white and black) multiplied like a wild fire so it got to the point where I had to try to make out what I was watching, it was quite challanging.

In the mean time a lady reppresentative from Samsung contacted me (probably preassured by the BBB or one of the many agency I contacted to complain) and offer to ship the DLP chip at no cost to a authorized service center of my choice for them to install it, Samsung would pay for the part and I would pay for the labor. I called this place in Ft. Lauderdale that they had suggested and I was quoted $250 to put in the chip... too expensive... I had to pass.

Called again Samsung and tried to talk the lady into sending me the chip directly, the answer was a solid NO, but she suggested another place in Miami called Abacus tech something that was an authorized ctr so I tried with them and I was quoted $180 which was just 30 bucks over my budget. I asked to come right away being under the impression that Samsung sent them the part already since both parties had been in touch already but as it turns out the part had to be ordered from this national backorder list etc, etc.

15 days later the part arrived and Diego showed up at my door he replaced the part but in the process he removed the whole assy and the projected image had to be realligned with the phisical plastic screen, WHAT A NIGHTMAREEEEEEEE !!!!!! I dont know if Diego did not know what he was doing or if that procedure is so tuff and lengthy as it was but it was a trial and error thing where he would move the assy and the picture would slide half way off the screen to the right and then he would move the assy (w/ a screwdriver pushing) and the image would move half way off the screen to the left but this time being rotated about 5 degrees. This back and forth thing went on for more than an hour maybe even 2. At the end I had to accept the "Well... they are never perfect, not even when they come out of the factory" story so now I have lost about 1 inch at the bottom and gained a black border at the top, left and right that is about 1 inch wide, other than that and the coupla screws I found on the counter the rest is fine.

Maybe one of these days I will try an allignment myself and I will also try to figure out why do I still have a white ghosty spot in the middle of the screen the size of a football.

WOW ... I'd definitely be saying the ordeal is not over if the tech left my set looking like that.


Just ... wow. I mean, I know you can reach a point where you're sick of dealing the BS and want to just move on, but this sounds ridiculously unacceptable!

yes it is unacceptable, but in my case I got to a point where the tech started going backwards with the "progress" and I figured: "Before he fuskup the chip, which is the only valuable thing here I better tell him "yeah... it's true they are never perfect, not even brand new" and keep the chip, watch it for a month or so in these conditions and then get at it again once my strength to fight for this has been restored.

If anyone here can suggest a procedure for allignment that is a lil more technical than push & pool the board until you get it right, that would be very apreciated.

let's hear it from ppl who have done this alignment alraedy.

thanx

Hey guys,
I got my chip in today, only took about 5 days for it to come in. I got it for 155 at samsungparts.com.

I will install it tomorrow and see how goes

Has anyone had any problems since installing the new chip? Are these chips going to be better since they were manufactured at a different time or will the same thing happen again.

Thanks and I will update when I finish the install.

My tv issue just started. The picture would be fine for a couple of minutes, then the whole screen would turn into these white and black dots/lines. My tv didn't start showing dots like others have described, the picture just went out all of a sudden. Does this sound like a DMD board issue?

My tv started with 1 white dot about a month ago and as of today had well over a hundred. I ordered the part from Encompass parts and installed it myself. Everything went great and my tv looks just like it did before the dots! Thanks so much to everyone for all their tips, especially Pez!! The needle nose pliers were definitely key! I have no technical background, I'm just a stay at home mom, but I was able to follow the instructions in the manuals without any problem. Good luck to everyone else!

i've done the alignment, which is why i bothered to write my last post at all. push and pull (actually more like slide and shift) is the only way to do it, as specified in the repair manual that Pez loaded up. there's no magic button or tool here to make things easy. it's a pain in the ass and takes a lot of careful and patient work, which is probably why they specifically mention not to mess with the alignment screws to begin with.

but hey if you think there's another way to do it, be my guest...