Fliptronics II board components
The board supports four flippers with four TIP36 power drivers, each with a 220 ohm 1/2 W resistor above it. Eight TIP102s: four pre-drive the TIP36s and four run the hold windings; each has a blue 2.6k 1 W resistor beside it and a 56 ohm 1/4 W below. Eight 2N4403 pre-drivers drive the TIP102s, each with a 1N4004 and 1k and 470 ohm 1/4 W resistors nearby. Faults are usually these transistors, diodes and resistors; the chips rarely fail.
Systems
Related tips
- Fliptronics: flipper will not hold up (flutters)
- Fliptronics flipper coil wired wrongly
- Flipper energizes and stays up at power-on or game start
- How Fliptronic flipper drive works
- Replace SE9302 drivers with TIP102, and renew the parts around them
- Flipper stuck up with power on (Playboy and later)
- Where the WPC coil and lamp drivers sit
- The four groups of WPC coil outputs
Source: Repairing Williams/Bally WPC Pinball Games from 1990 to 1999, Part Two, Clay Harrell (pinrepair.com)