Typed in by Jonathan Deitch (jdeitch@umiami.miami.edu) Williams Bubbles This has four boar

---
Master Index Current Directory Index Go to SkepticTank Go to Human Rights activist Keith Henson Go to Scientology cult

Skeptic Tank!

Typed in by Jonathan Deitch (jdeitch@umiami.miami.edu) Williams Bubbles ---------------- This has four boards ... CPU/Video, ROM, Interface, Sound. CPU/Video ========= IJ3 : Monitor Control 7 : N/C 6 : Horiz. Sync. 5 : Vert. Sync. 4 : Ground 3 : Blue 2 : Green 1 : Red IJ2 : Memory Protect Interlock 4 : N/C 3 : N/C 2 : Key 1 : Memory Protect (Inverted) IJ1 : Power Input 9 : - 5 V DC 8 : + 12 V Unregulated 7 : + 5 V DC 6 : N/C 5 : + 12 V DC 4 : Key 3 : Ground 2 : Ground 1 : N/C ROM Board ========= 2J4 : Sound Board Interface 9 : N/C 8 : CB2 7 : PB4 6 : PB5 5 : PB2 4 : PB3 3 : PB0 2 : PB1 1 : N/C 2J3 : Coin Door Switches 10 : N/C 9 : Key 8 : N/C 7 : Slam Switch 6 : Center Coin Slot 5 : Left Coin Slot 4 : High Score 3 : Right Coin Slot 2 : Advance 1 : Up = Auto, Down = Manual 2J2 : Power Input 6 : N/C 5 : N/C 4 : + 5 V DC 3 : Key 2 : N/C 1 : Ground Interface Board =============== 3J2 : Not connected 3J3 : Player Panel 10 : Ground 9 : N/C 8 : N/C 7 : N/C 6 : Player 2 Start 5 : Player 1 Start 4 : Move Right 3 : Move Left 2 : Move Down 1 : Move Up Sound Board =========== 10J3 : Sound Select (From ROM Board) 9 : N/C 8 : CB2 7 : PB4 6 : PB5 5 : PB2 4 : PB3 3 : PB0 2 : PB1 1 : N/C 10J4 : Volume Control 4 : Shield 3 : Key 2 : Out 1 : In 10J2 : Speakers 4 : GND 3 : N/C 2 : N/C 1 : Audio Out : Note - the schematic does not say if this is amplified or not ... 10J1 : Power Input 9 : Key 8 : 12 V DC Unregulated 7 : N/C 6 : N/C 5 : GND 4 : N/C 3 : + 5 V DC 2 : + 12 V DC 1 : N/C

---

E-Mail Fredric L. Rice / The Skeptic Tank