The left slingshot does not fire, a number of LEDs are out and trough switch 4 never registers.

Left slingshot, some lamps and a trough switch dead: wires torn by the playfield slide

Cause: Two wires on the left side had been caught on the playfield slide rail when the playfield was moved and were torn in half.

Checks

• Look along the left playfield slide rail for snagged, pinched or cut wires.

Fix

• Repair the torn wires properly (solder and heat-shrink) and re-route the harness clear of the slide rail.

Systems

• Sega/Stern Whitestar

Games

• Elvis

Related tips

• After cleaning the cabinet most coils are dead and the display goes dark: reseat J16

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