Capped Game Gear still has low contrast

[andylatham82]

I have a Game Gear that has had its capacitors replaced to fix the screen. However compared with my friend's Game Gear, the screen still lacks contrast. The colours just aren't as strong as on my friend's machine.

Could there be something wrong with the caps still or is it likely to be an issue with the screen itself? Is there a way to test the caps that are there?

Thanks a lot in advance!

Andy