Major Havoc Jumpers?

I dusted off my Major Havoc dedicated the other day, and brought it back to
life. While inspecting the main PCB, I noticed two jumper wires that are no
longer connected. For the most part, the game appears to run fine the way
it is (some of the DIP switch settings are not taking, and the triangle tube
is displayed w/ warped lines).

http://www.classicade.com/P1000057.JPG
(2048x1536 @ 330 KB)

I'm wondering the following:

 - Are these factory jumpers?
 - What purpose do they serve?
 - Anyone have docs/specs for these?

Thanks

---
Bret Pehrson
http://www.vaps.org/members/nv/bret@classicade.com.html
mailto:bret@classicade.com
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