1997 Mercury 90 Switch Box?

Please...
Does my '97 90hp have a switch box? If so, I can't find it; not even in the manual.
I'm trying to DVA testing for the first time.
Also, I bought an Electronic Specialties DVA Mdl 640. I assume the banana plugs go to my multimeter and the wires to Green and Ground.
Any help appreciated.
Denis

CDM modules.. each CDM(coil) is a switchbox

thnx fazbullet.
So, I have Grn and a Grn/Wht wires coming into bullet connectors. The solid Grn changes to Wht/Grn on its way to CDM#1; and the Grn/Wht goes to CDM#2 and CDM#3. Do I leave these connected and connect my Red (+) DVA lead to the Grn(to Grn/Wht) and Black (-) to engine ground? Additionally, do I place a (Lisle 20610) spark gap tester between the CDM#1 and plug? (The Electronic Specialties DVA 640 instructions say to connect the spark tester between CDM and Ground.)
The way I just stated it gives me NO reading on multimeter and the faintest amber spark tester flash. (THis assumes I have the DVA property plugged into multimeter. (Banana plugs into meter and wire probes to alligator clips to Grn/Wht and Grnd.)
Thnx for anyone's help.
Denis

Need a open air gap tester as the neon can give false results(

[h=1]Lisle 50850[/h]