SNES Development
SNES Development Hardware and Software

SNES Development Hardware / Software

Psygnosis PSY-Q Development System for SuperNES

To enter a diagnostics mode, hold the Left Trigger + Right Trigger + Start + Select and a diagnostics screen will appear.

The cart PCB has the following labels:

  • SNES Cart v1.2
  • (C) SN Systems 1993
  • A 94V-0 9426

And has the following labeled chips:

  • ©NCR 53C80-40 / CP05176 / 609-3400389 / 9309K (NCR Microelectronics Division - SCSI Adaptor)
  • Hyundai / HY62256ALP-70 / 9341TC / KOREA (SRAM)
  • “EEPROM” / AK / PGM-12.5V / B9318 / NMC27C64Q / 150 (Firmware v1.03)
  • PALCE20V8H-12PC/4 / 304G3ZD H
  • PALCE 16V8H-15 / PC/4 411F141 K (2 of them)
  • 42A-5125 / 9420 (Active Delay Line - TTL)
  • ST M74HCT158B1 / 99248R (Quad 2 Channel Multiplexer Inv., 2 of them)
  • Toshiba / TC514800AZ-70 / Japan 9401HBK (DRAM, 8 of them)
  • T74LS367AB1 / W993A9331 / Malaysia (3-State Hex Buffers)
  • T74LS245B1 / W995M9335 / Malaysia (Octal Bus Transceiver)
  • TL49 / APEM / K3 (Next to LEDs)

DIP Switch Positions:

1: Off
2: Off
3: Off
4: Off
5: On
6: On
7: On
8: On