Torch: under-playfield coil transistor

On Torch, two 2N5875s under the playfield fire the left blue and right green target bank resets. They are pre-driven from driver board Q3 or Q4, so a dead or locked-on coil there may be the playfield transistor, the MPS-U45 or the wiring between them.

Systems

• Gottlieb System 1

Games

• Torch

Related tips

• Joker Poker: under-playfield coil transistor
• Roller Disco: under-playfield coil transistor
• Testing an under-playfield 2N5875 and its wiring
• Torch: game PROM letter
• Which driver transistor fires which coil
• Games with under-playfield 2N5875 driver transistors
• Coils or driver transistors run very hot
• Spare transistors for System 1 boards

Source: Gottlieb System 1 Pinball Repair from 1977 to 1980, Clay Harrell (pinrepair.com)