Video Overlay wire question

[dsisco@learningco.com (Dick Sisco)]

I have a Video Overlay Card on which three wires have come unsoldered.
At the back of the card is a 20-wire ribbon cable, the bottom five
wires of which run to two RCA type jacks.  Wire 20 (or 1) is soldered
to an outside lug of the jack marked "out".  Wire 19 (or 2) is soldred
to the center lug of the jack marked "out".  The next three wires have
come unsoldered.  Inspection of the lugs shows that at one time there 
were wires soldered to a second outside lug on the jack marked "out" and
to an outside and center lug on the jack marked "in".  Can anyone tell
me how the unattached wires (17-15 or 3-5) need to be connected?

Any help would be greatly appreciated.

-- 
Dick Sisco         dsisco@primenet.com         dsisco@learningco.com