Quoted from gianfri:Be careful because contrarily to the G2 machines, the G1 backglasses are blocked by to sliding locks which are forced to closed position when the door is closed.
In order to unlock the back glass you need to open the headbox door and pull the two locks out (from the inside) and then you'll be able to remove the glass.
Did you fix the problem with the spinner?
Mine doesn't have the two locks for backglass, I can see where they'd go though. It does seem like the glass is tight against the baffle boxes (is that what you call them?). For example the player 3 number is worn away and you can see the paint or colour stuck to the baffle board box. I'll have to get a photo. Other than that the backglass is in good condition.
I managed to get the spinner part with my pinball solutions display order but haven't installed it yet.
The displays are great! I got two and they were straightforward to assemble.
However if set to the credits/ball display you get an extra digit illuminated at all times on the 4th digit.
It's hidden by the backglass so no big issue but a strange quirk.