Don't know if this is a lot of help but I used to have a cx100 and the electrics would get confused occasionally and think it was in gear and wouldn't start. It would start when I held the gear stick between neutral and in gear. Also if you go on the Case website and register it gives you access to all the parts diagrams which may be of help
Heres the link; http://www.caseih.com/DWS/admin/cpc_login.asp?DealerID=PVA-9SYXB-Q2C3&DataSet=001CSIHE&LanguageID=ENU