Quote Originally Posted by flying_fox View Post
Sorry for the late reply, I just found this topic and registered to answer you. ^^

I had this error (E.8 RWMエラー) and I think it's quite common, because it's normal to leave your pachislo off for a long time (about 3 to 4 weeks for this error to appear). The solution is easy but you do need to have the key you mentioned, in order to turn on the settings (if I understood well, you have found this key).

What you need to do is to turn the power off, then turn the settings key (horizontal position). Turn the power on and you'll get the settings screen (in which you can change the date or set your birthday). Now you just need to exit this screen: first, push the lever down once, then turn the key back (vertical position). Close the door and the usual title screen will appear.

Don't try to reset the machine, it's not necessary for this error.
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