Donkey Kong sprite issues (Solved!)

[johnrt]

Hi!

You guys helped me fix my other DK board. Thanks for that by the way!

I've bought another DK board. This one was converted to Hero in the castle of doom. It DID work with that mod (after some minor repairs), but I wanted this DK back to it's original state. I've been burning new EPROMS and inserted a new Z80 and now the board is back to DK!  

However I'm having some sprite issues. You can see these here:
https://www.youtube.com/watch?v=wf50n5acDnA

The issue is on the video board. I have tested with another working video board and then the issues are gone. The ROMs are also ruled out. So, have any of you guys seen this before? Any tips where I should start troubleshooting?

Thanks in advance!

[johnrt]

The issue is solved. After rechecking the ROMs I found a faulty 2716 at 7D on the video board. It's now working flawlessly! I got the hint from here:
http://www.brasington.org/arcade/tech/dk/

https://www.youtube.com/watch?v=27uSeG9soQQ