Update
Updating database... Please wait.
Tuesday 22 May 2018 at 08:44
Quoted from bingopodcast:Fuse and plugs are most likely suspects. Post another photo a little higher up on the lamp side to be sure (need the whole circuit for the backbox lamps).
Hope this helps!
697F2008-2192-4CC1-845F-04A5B30EBC48 (resized).jpeg
Source: http://pinside.com/pinball/forum/topic/queen-of-diamonds-back-box-lighting-out#post-4411409