Always keep in mind the chip that needs replacing is not a design defect but a life span issue. These chips are showing up in all makes with much shorter life spans than predicted. And again, the causes are well known.
You can find stores like shopjimmy dot com that sells the chip and may have a video on the work or...
Call it in and see if Samsung will offer the labor only repair. Both cost about the same.
I have white "snow" dots all over my screen. there are black dots as well. How do I get them off or get it repaired? It is out of warranty but sounds like a samsung defect. Model #HL-T5075SX/XAA