SM- lamp issue- lose wire found 🤷‍♂️

[SteadyP]

Hi all- anyone got a clue where this yel/org wire has popped off? I can’t find anywhere obvious nearby and the following lamps are now off other than what’s in green on the U15 column. Picture shown is in the general location of the WE(B) lamp holder and near a block which looks like it connects lamps on the back panel

 

[SteadyP]

Sorted- wire was from WE(B) lamp and had snapped when lifting the playfield. Soldered back on - still having one issue with Bonesaw lamp which has never worked- can anyone send me a picture of their wiring for this particular socket? I’m not sure if it’s a diode or wire problem

 

[SteadyP]

Sorted- wire was from WE(B) lamp and had snapped when lifting the playfield. Soldered back on - still having one issue with Bonesaw lamp which has never worked- can anyone send me a picture of their wiring for this particular socket? I’m not sure if it’s a diode or wire problem

Should it be the first chain in the daisy? Will dig out my multimeter tomorrow and pulse the Bonesaw lamp in test mode- @David retro - do you stock replacement Stern lamp holders with diode?