Need help with Predicta Siesta

[classicradios]

Need some help from you Predicta folks. I recently aquired a Predicta Siesta with chassis 10L43. Someone has cut wires in the flyback area. Is something suppose to plug into the socket on the outside of the HV cage? If so it's missing and the wire connected from 4 has been cut. I don't have a schematic on this chassis yet so I can't tell whats missing. The flyback is there. All the machine screws around the HV cage have been removed previously. Is this a popular area on the chassis for vandals? I added a photo of the trouble spot. Any help would be wonderful!
Thanks
Jim