Sentinel
Premium
join:2001-02-07
Florida
|  DLP color wheel squeeking
I have a 3 yr old Samsung DLP TV and for the last couple of days the color wheel started making a kind of grinding or rubbing sound when I started it up. After it warms up it quiets down a bit to a higher pitch whine.
When it starts up it sounds kind of like a PC fan if a wire or piece of tape is rubbing against the fan. After it quiets down then it sounds like a PC fan that got some dirt in the bearing or has a bearing that it going bad. That kind of whine sound.
At first I thought it was the big fan in the back that cools the bulb was dirty so I opened it up to clean it but after close inspection I localized the sound to the big box that I am pretty sure houses the color wheel.
Obviously I am past warranty so does anyone have any thoughts as to how I could proceed with this? Ideas I have...
1. Attempt to open it up myself and see if maybe something is dirty or loose in there. It kind of sounds like a PC fan when the bearing gets dirty. What if I screw it up?
2. Replace the color wheel assembly myself. Never done it before but inspecting it it looks like a guy that builds his own PCs (as I do) could replace it. It looks pretty straightforward. Unplug the cables, remove assembly, put in new assembly, plug in to motherboard and that's it.
Thing is I have never done it before and I don't know if it is that straightforward, or if there is more to it than that. Do you have to calibrate this thing? Do they even sell this kind of part?
3. Bring it to a Samsung repair place and pay through the nose to fix it.  |
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dvd536
as Mr. Pink as they come
Premium
join:2001-04-27
Phoenix, AZ
| Is the tv watchable?
if you build PCs then swapping out the unit would be a no-brainer. now if "end users" can even buy the assembly is another question altogether.
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When I gez aju zavateh na nalechoo more new yonooz tonigh molinigh - Ken Lee |
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Sentinel
Premium
join:2001-02-07
Florida
| Yeah, TV looks great. No problems at all there. It just has this squeeling kind of high pitch whine.
I just went to the Samsung website and looked it up in there trouble shooting guide and it says it can be either a fan or the color wheel and I have eliminated the fans as the culprit. It also says that the color wheel has to be installed by an authorized repair technician.
I am way past warranty so voiding my warranty is a non-issue, but it does not say anywhere in there if this thing has to be calibrated or if it is just a simple swap of the new part.
Yeah, I am afraid that I might not be able to find the part anywhere other than an authorized Samsung repair place in which case he might not sell it to me without him putting it in himself. |
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russotto
join:2000-10-05
Collegeville, PA | reply to Sentinel
Google it; there are places selling Samsung color wheels. I'd replace it before the bearing fails completely, that could be messy. |
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bt06437
join:2001-12-03
Carrollton, TX
 ·Verizon FIOS
| reply to Sentinel
you may want to travel over to the avsforum.com, I'm sure I've seen posts concerning color wheels. I've also seen some posts concerning adjustments that will need to be made within the service menu. I definately have seen that this is not a simple plug n play parts swap. |
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Sentinel
Premium
join:2001-02-07
Florida
|  Well I just got off the phone with Samsung and they had some good news and some bad news.
Good news: It is the color wheel and I can replace it myself.:)
OK news: It costs $90 for the part.
Bad news: It is out of stock right now.
I ordered the part on SamsungParts.com but it is backordered and they expect about a 4 week delay ... so far. The tech on the phone said that it is not that hard for a reasonably tech savvy guy to replace. I am that guy  So lets just hope my color wheel lasts until I get the new one.
I did see it available in some other places online but it was the same price or higher and I don't know if they are reputable dealers or not so I figured I would just wait on Samsungparts.com for now and see how it goes. |
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howie
Premium,MVM
join:2003-04-08
Little Falls, NJ
| reply to Sentinel
Found this info on replacing a Samsung color wheel:
»www.jangro.com/a/2006/07/24/sams···r-wheel/
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McCain-Palin '08 |
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IllIlIlllIll
EliteData
Premium
join:2003-07-06
Lindenhurst, NY
4 edits | reply to Sentinel
the above URL is good information relating to changing the colorwheel on a samsung DLP provided the set pictured is close to the same model and series as yours.
as a good pointer, dont get finger prints on the glass pies of the new colorwheel.
your colorwheel bearing is making noise and eventually will come to a point where it will not start when the set is turned on.
make sure if you had the set on, that you let it cool down for at least an hour before you start performing work on it.
if this is the original lamp, now might be the time to buy a replacement for when the original expires.
as stated on the URL posted above, be extremely careful when removed the main PCB and the light engine as there are small fragile cables attached that can and will break.
the part # for your colorwheel is most likely BP96-00674A.
if you find an authroized samsung repair shop, they can order the colowheel for you if you provie them with the complete model and version (if any) withiin a few days as authorized shops have access to replacement parts before any distributor does.
if you find reversed colors after installing the part, remove or place a jumper on the DMD board as stated on the URL (above/below the yellow sticker).
the two cable connectors on the old colorwheel, one is a flex cable and the other is a snap cable, the snap cable plu end may be fragile when removing from the DMD PCB and may crack leaving part of it in the connector on the DMD PCB.
if this happens, you will need a "dental pick" to carefully remove the leftover plastic connector piece to attach the new plug from the replacement colorwheel.
to clean the projection lens, use a dry microfiber cloth and no cleaning solution.
to clean the dust out of the inside of the unit, do not use a can of compressed air, use a vacuum cleaner with a brush attachment.
if you do not have a brush attachment for the vacuum, use a small paintbrush to "scoop" the dust into the vacuum hose.
if you find the colorwheel has broken glass inside, remove the old colorwheel, remove the light engine from the unit, go to a large garbage pail, turn the light engine upside down and lightly shake to remove the glass shards from inside, if small fragments still persist, use a small paintbrush to move them and blow them out using your breath (with the engine sideways over a garbage pail), not a can of compressed air, a vacuum hose is too big to try and vacuum the glass shards out and may hit the light tunnel which is very fragile.
compressed air is too strong and may eject its liquid freezing contents and could damage the light tunnel or other components.
good luck.
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Sentinel
Premium
join:2001-02-07
Florida
| Wow. Holy cow. Thanks IllIlIlllIll for all that. I have printed it out. And you are correct on the part number.
And thanks howie for that link.
Very much appreciated to you both.
I'm going to give SamsungParts.com a few days to see if I can get it from them before I start trying to get it from another source like a repair shop. |
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howie
Premium,MVM
join:2003-04-08
Little Falls, NJ
| said by Sentinel  :Wow. Holy cow. Thanks IllIlIlllIll for all that. I have printed it out. And you are correct on the part number. And thanks howie for that link. Very much appreciated to you both. I'm going to give SamsungParts.com a few days to see if I can get it from them before I start trying to get it from another source like a repair shop. You're welcome. I hope your set is similar to the one I linked to and best of luck replacing it. Just take your time and I'm sure you'll be able to do it. 
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McCain-Palin '08 |
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Sentinel
Premium
join:2001-02-07
Florida
| I have a Samsung HL-P4663W.
I am fairly good with my hands I used to fix TVs with my dad in the old days. He was a TV repairman. Then I became an auto mechanic for a short while and after that I ran a small (insignificant) little PC business in a small town in the late 90's and I still build and repair my own PCs so, barring any unforeseen circumstances, it *should* be a fairly straightforward proposition. Famous last words
We'll see when (if?) I get the part. |
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Sentinel
Premium
join:2001-02-07
Florida
| reply to howie
OK, I had a chance to closely look at the directions on that link you posted. My TV set is slightly different and apparently even easier than that one. My TV has a slide out tray that totally disconnects and removes from the TV enclosure. This tray houses the color wheel, lamp assembly and projector. Two cables to disconnect and it slides right out all together.
I can then take that tray and bring it to a table where I can work on it easily. We'll see. |
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Sentinel
Premium
join:2001-02-07
Florida
| Update:
Got the color wheel last night and I put it in. Fairly easy but a bit time consuming if you are careful ... which I was
After reassembly I turned the TV on and sure enough ... everything was blue as described in that online tutorial linked to above. So I found a jumper and removed it. Tried again and all colors were correct.
So most channels look great and no problems; but not all. Some channels don't look so good. They have kind of a weird shadowy look.
So does this thing have to be calibrated or something? |
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Kearnstd
Elf Wizard
Premium
join:2002-01-22
Mullica Hill, NJ | reply to Sentinel
do those things use ball or sleeve bearings? dont have a DLP TV just wondering.
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[65 Arcanist]Filan(High Elf) Zone: Broadband Reports |
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IllIlIlllIll
EliteData
Premium
join:2003-07-06
Lindenhurst, NY
| reply to Sentinel
said by Sentinel :Update: Got the color wheel last night and I put it in. Fairly easy but a bit time consuming if you are careful ... which I was After reassembly I turned the TV on and sure enough ... everything was blue as described in that online tutorial linked to above. So I found a jumper and removed it. Tried again and all colors were correct. So most channels look great and no problems; but not all. Some channels don't look so good. They have kind of a weird shadowy look. So does this thing have to be calibrated or something? yes it does have to be calibrated. |
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IllIlIlllIll
EliteData
Premium
join:2003-07-06
Lindenhurst, NY
| reply to Kearnstd
said by Kearnstd :do those things use ball or sleeve bearings? dont have a DLP TV just wondering. the new ones from 2007 and on, ride on the air generated from high speed rotation. |
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Sentinel
Premium
join:2001-02-07
Florida
| reply to IllIlIlllIll
Is this something I can do or will I end up having to take it to a TV repairman anyway?
It seems as though my colors are fine. It looks like it is the blacks or dark areas, that are the problem. The dark areas seem to have what looks like oil slicks or shiny areas that break up. |
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IllIlIlllIll
EliteData
Premium
join:2003-07-06
Lindenhurst, NY
| said by Sentinel :Is this something I can do or will I end up having to take it to a TV repairman anyway? It seems as though my colors are fine. It looks like it is the blacks or dark areas, that are the problem. The dark areas seem to have what looks like oil slicks or shiny areas that break up. thats because changing the colorwheel is very similar to changing a timing belt/chain on a car, it will run, but not up to 100% performance until its timing is calibrated.
so, what youre seeing is the timing of the each color glass pie on the colorwheel, is slightly off.
you could do this and i could guide you through it, can you provide me with the complete model number and a version if possible ?
the sticker is located on the right front side of the unit.
the reason i ask is so i can provide you with a powerpoint slide on calibration if necessary.
thanks. |
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Sentinel
Premium
join:2001-02-07
Florida
| That makes sense. If you could do that you would be a life saver.
I thought maybe that was the case because in the box with the new color wheel there was a sticker with some RGB values and stuff. This lead me to believe that perhaps I had to "set" these new values somewhere.
I assume that I have to calibrate this because this color wheel is slightly different than the old one. If I had gotten exactly the same one as my old one then I would not have to set anything? Because I read online other people replacing their color wheels and I did not read anyone having to calibrate theirs.
My Model: Samsung HL-P4663W X/XAA |
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