Q*BERT'S QUBES CHIP PLACEMENT Official Gottlieb "q*bert's qubes" ROMs. © 1984. Written by Neil Burnstein. Sound by David Thiel. file loc label type cksm ---- ------ --------- ---- ---- rom0 c11-12 GV119ROM0 2764 630D rom1 c12-13 GV119ROM1 2764 B52C rom2 c13-14 GV119ROM2 2764 81B2 rom3 c14-15 GV119ROM3 2764 D36E bg0 e11-12 GV119BG0 2732 B97A bg1 e13 GV119BG1 2732 1B16 fg0 k4 GV119FG0 27128 10D7 fg1 k5 GV119FG1 27128 FB59 fg2 k6 GV119FG2 27128 97EA fg3 k7-8 GV119FG3 27128 E84B snd1 u5 GV103SND1 2716 0E4D snd2 u6 GV103SND2 2716 F2A1 **Note** These foreground ROM images have been combined from the original twelve 2764 images which were on the foreground object expansion module (MA-643). The following modifications must be made to the board in order to run the combined ROMs: 1. Remove (+5V) from K4-26, K5-26, K6-26 and K7/8-26. (cut the trace) 2. Jumper pin 26 from all the foreground ROM's to A8 pin 12 3. Remove both R31 and R33 (1K Ohm resistors) 4. Remove Q2 (2N6044) 5. Connect the base of Q1 (from front view, pin 1) to A8-15 via a 15KOhm resistor