I noticed your post in searching for a solution for my Toshiba
62HM195 DLP which I have been told is a bad light engine and
I posted images a while back. I have ordered the part which is on
its way. Do you know anything about this product?
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Re: samsung dlp 50" light engine
On the right side of your set ( as your facing the television), is a small sticker with a model, serial, and version of your set.
If the version is: The engine Part number is:
The engine replacement is not bad, two screws and about four or five wire harnesses need to be unplugged (most have a push tab that needs pushed in to help remove it) before it is pulled out.
Put the new engine in the reverse order.
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Samsung just told me they wouldn't fix my tv because it was produced in Nov. of '06 and the only ones they would fix were made in August of '06 or earlier. I am way too angry right now to call the service tech number they so very nicely provided.
First thing is look at the model number of the TV and make sure of the complete model number. For instance there are 2 versions of this model requiring 2 digital board numbers. If your model is just HLR5067W the part number is BP94-1858A if the model is HLR5067WAX the part number is BP94-02084A. I bet yours will be the later of the 2 since that is a high failure version. They are NOT cross compatible. The parts you can purchase from Samsung at http://www.samsungparts.com
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There are several things in this set that will cause this. I have ran into this problem 40-50 times on that specific unit. Most common problem is the lamp. Next most common problem is the DMD board which is a very expensive repair. Next most common cause is the ballast which powers the lamp. Next is the color wheel but usually that gets noisey before it fails. These DLP televisions aren't easy to diagnose but they're easy to work on. Now here's the thing, all four of these problems can be solved by replacing the light engine. If you are willing to put some money into it, the engine assembly is real easy to change. Just google the exact and complete model number and search prices of the light engine. I'm pretty sure the part number is BP96-00305J. Sometimes you can actually ship the engine from your tv in to be rebuilt. This can save you money. Any repair on this tv will probably cost 200-500 but they get a great picture. I have a samsung DLP in my livingroom. Good luck, Russmann.
Remove the rear cover and check the lamp cover switch. Earlier versions used a black plastic switch holder that may break due to improper assembly. The part number for the holder is BP61-01240A. Newer versions use a metal tab attached to the engine. In this case, improper assembly may cause the lamp cover switch to be extended past its range, either breaking the switch or causing it to have an open contact. Replace the switch with BP91-01231A.
Note that in these models, when reinstalling the rear cover, it is best to remove the lamp cover first, install the rear cover, then install the lamp cover. This will make sure that the lamp switch is properly engaged.
I have alot of access to samsung DLP parts if you need anything. The other site where I am a repair tech has a great DLP training manual for the sanmsung DLP units if you want I will post a link cause they provide free tech support to help you diagnose and repair your set.
The unit has a defective light tunnel contained within the light engine. This part is not easily replaced and you will a qualified tech to replace it. Many service centers condemn the light engine at a much hight cost. Do not buy or let someone tell you the light engine must be replaced. This repair requires only the light tunnel.
You will need to have it diagnosed if you do not have the service manual, or the knowledge of how these circuits work. I can tell you to replace this or that but it would be a guess! You need to start measuring the voltages on the ballast circuit, as I have seen door switches, fan sensors, heat sensors cause all of your symptoms as well. Good Luck