Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: after replacing this chip in my HLT6176S tv the white black dots are gone and pic is sharp but i have vertical black lines on the screen ?
Document: This piece came to us very quickly , it was packed well, and as soon as my husband installed it the white dots were gone from the tv screen
This chip turned my old Mitsubishi tv into a brand new one.I have always kept my equipment in pristine condition, but after the years my Mitsubishi started failing me with the dreaded white dots of terror. After installing the new chip I can breathe again. I would had to go out and spend approx. $3000 dollars for a new tv.
if your technically incline this will be a 45min to 30 mins replacement of this chip; now I'm a 48 year old female and as a child i love putting things apart and together again. Went on youtube saw the videos they have on line picked my tv model and the rest as they say is history!
Got exactly what I ordered. Watched a You Tube tutorial, installed it and the TV works great now, no more white spots
So far the new replacement chip has worked flawlessly. It wasn't that hard to change out. It came as described
Perfect! Fits and is an improvement over original OEM chip and hopefully will last longer. Also replaced bulb at the same time.
Shipped in a timely manner, fit perfect, TV works perfect. Could have included some instructions on how to install, however I guess this is supposed to be done by a professional and I just installed it myself.
Answer: Sorry to hear that, I don't know anything about that,  maybe you have to go through the process once againPerhaps the chip is not sitting squarely in the mount...