Replaced post caps that were badly yellowed or were missing.
Replaced one acorn nut with a post cap
Online reference photos seem to suggest they should all be post caps, will check manual next week to confirm and then replace the rest.
Resoldered wires connected to Red Bank targets.
While disassembling noticed one disconnected wire, and while removed the assembly another wire came loose on both ends
Removed the bank assembly, disassembled and cleaned.
Had suspected weak springs but they were fine.
Old lubricant had hummed things up just enough for the targets to not smoothly drop.
Rubber Pad should be replaced. Worn down, metal exposed.
Ideal temporary fix: Rotate the Pad 180⁰
Problem: The arm would not budge from the rod. I did not want to force it
Plan B Temp Fix: Electric Tape was added to prevent exposed metal
4 Issues Determined
• Discovered missing screw and incorrect screw on main board bracket - Removed and Replaced
• The two screws supporting the solenoid bracket were loose - Retightened
• Solenoid spring had slipped below the cylinder - Reseated
• A Rubber pad is worn down and revealing the metal beneath. With flipper in the up position there is metal on metal contact - Worn Part touched Leaf Arm. Could not remove the piece to flip it around.
Temporary Fix: Electric Tape to prevent metal/metal contact
Red drop target bank not always resetuing
Reflowed solder on the power board’s connector pins. Intermittent ground connections were causing the solenoid issues. Reflowed all board connector pins for preventative maintenance.
Checked fuse F2, the solenoids fuse. It is fine. Voltages are reasonable from power-on to first solenoid firing, and then they drop to surprisingly low voltages. Next steps: use a thermal camera to see if anything is heating up, and measure power flow.