The backbox roulette wheel does not work.

Roulette wheel not working: worn J15 connector on the interconnect board

Cause: Poor contact at the J15 header and plug on the interconnect board, which feeds the wheel.

Checks

• Inspect the J15 header pins and plug on the interconnect board for dull, loose or burnt contacts and cracked solder joints.

Fix

• Replace the J15 plug housing and crimp pins (and reflow or replace the header on the board).

Systems

• Williams System 11C

Games

• Riverboat Gambler

Related tips

• GI out on Banzai Run and later: burnt interconnect connector 2J6
• Right flipper dead after a coil cooked: burnt trace on the interconnect board
• The interconnect board (Banzai Run and later)
• Repairing a burnt GI connector properly
• Interconnect board from another game fitted: the values Jokerz needs
• No drop target switches register: 12 V feed lost at a loose connector
• Lane change not working on Taxi and later System 11 games
• System 11 backbox boards and supplies

Source: Pinball Repair help group!! (Facebook group)