Parts for the 80/80A power supply rebuild
Required: a 680 ohm 1/2 W resistor (R10), a 12k 1/2 W resistor (R3), a 1N4738 8.2 V 1 W zener (CR7), two strips of Molex .156" square header pins (26-48-1125), two .156" housings (09-50-3121), twenty Trifurcon pins (08-52-0113), a 6,800 to 15,000 mfd 16 V or higher capacitor and a few inches of 18-gauge wire. Recommended: a 1N4746 18 V 1 W zener (CR6), a 470 ohm sealed trim pot, two yellow, orange or red LEDs, and a 14-pin socket with a UA723CN-type regulator.
Systems
Related tips
- Bench-test an 80/80A power supply in the game, part 1
- Bench-test an 80/80A power supply in the game, part 2
- Mandatory 80/80A power supply rebuild
- Reassemble and set up the 80/80A power supply
- Recommended extras for the 80/80A power supply
- Original 80/80A power supply design overheats CR7
- 80/80A power supply has 12 V but no +5 V
- Which System 80 power supply boards are interchangeable
Source: Repairing & Upgrading Gottlieb System 80 Pinballs from 1980 to 1989, Part One, Clay Harrell (pinrepair.com)