I have a ROM 01 board with a non leaking varta battery which still keeps time.. Problem is It passes all diagnostics but I cannot get into control panel. It just locks up when I try. I swapped the ROM out from another IIGS rom 01 machine and it still does it! What is the deal with that?!
Someone sent me this link: https://comp.sys.apple2.narkive.com/k4USjCJg/apple-iigs-won-t-enter-control-panel
Going by the link info , If I hold option while booting per the link you sent I get a menu which gives me control panel as option 1 but when I select it, it locks. I think were close but I dont know what else to try. Oh and W1 has no jumper on it, no do the pins touch.