LCD issue

[Northern]

First of all, my english is not very good, i'll try to make myself clear.

A couple of weeks ago, I cracked the LCD display of my MBP 2.2 ghz A1226 (Santa Rosa). I found a really good deal on eBay for a complete screen assembly (lcd, front and back bezel, iSight, etc), it was really cheap and supposed to be tested and working so I bought it.

I received and installed it today, everything went good but when I turned on my MBP, the image on the lcd had horizontal lines moving in it. The screen is glitching and all fuzzy.

When I plug the MBP on an external display, everything works perfectly so it's not the graphic card.

What could cause that problem ?
Bad cables, bad lcd ?

I made a video with my iPhone , the quality is not perfect but you can clearly see the problem.

IMG_0081.MOV - YouTube

Thanks alot !

 

[chscag]

It could possibly be:

A bad or poorly connected video cable from the logic board to the LCD assembly.

A mismatched LCD assembly. (In other words not the correct LCD)

Since everything looks good on an external monitor, that tells you the GPU and logic board are OK.

 

[Northern]

Thanks for your reply.
So it could be a mismatched LCD even if the assembly was from a A1226 ?

 

[chscag]

If the LCD assembly is an exact replacement there should be no mismatch. However, many eBay vendors of LCDs will list which models their LCD is supposed to work with. Sometimes they work, sometimes they don't. If the assembly you purchased was inexpensive as you say, it's likely not an original Apple part.

Also be sure to check the video cable and connectors.