NEED THE DMD PART NUMBER FOR A SAMSUNG DLP MODEL

Buy a new DMD Chip and replace it yourself only cost you $159 which save at least $100 to ask a repairing center to do it for you. Check the video how to do this. Source: DMD Chip replacement tips And your DMD chip should looks like

This is a known issue with Samsung DLP sets. Here's a link to the solution:

http://forums.cnet.com/5208-13973_102-0.html?messageID=3162774&tag=emfrnd#3162774

if image freezes,dmd board or the main board has failed.

Not too familiar with this exact model but am very familiar with Samsung DLP. If this is a Rear Projection (3 CRT's R.G.B.) it is surely the convergence chips ($12 each X 3). If this is a DLP (Color Wheel @ 7000rpm) this is not good news as a DMD board for Samsung DLP is around $400 (not retail either, warranty part price).

Samsung DLP Projection Tv white dots may caused by DLP Chip. Change a new DMD Chip 19106143W. The post show you how to replace it step by step.

Your chip should look like this:

Try here:

http://www.partstore.com/GetModel.aspx?MfgName=Samsung&BrandName=Samsung&ModelNumber=HLN5065WX&PartCategoryName=&Keywords=board&Page=1&SortBy=price&SortDirection=asc#PartsearchSKUList

BP96-00249A $937 at partsore.com i hope that isnt the problem

You need a new color wheel. Go to www.samsung.com and do some searches. I had to have someone come out and replace mine.

If you have have 40 vertical lines 16 pixels wide: DDP1011 or BCA, DMD panel interference: Replace the DMD board.

that's from a thermal switch, to keep the innards cool, post use. Seems to me that you might just check to see that all vents are open and clear of debris, for starters.