This is a reproduction of the SA-1 SNES cartridge pcb 1L5B-20 that uses the 27c322 eprom.

PCB is 102.1mm x 70.2mm x 1.2mm thick

This pcb design originated by ARTHRIMUS but when I had these made, I found some serious design flaws. Correcting design flaws is difficult when you don't have an original schematic to use, so repairing the flaws in Gerber flims was my only choice.  Since this pcb design is no longer ARTHRIMUS's and it's not my (RetroCircuits) design either, I decided to remove his name from the silk and just have it blank.

This pcb requires the SA-1 accelerator chip by Nintendo. The 1L3B boards aren't very useful for hacks and other fan creations. The best was to build one of these is to use a donor pcb and just transfer the parts over.

However, the 1L3B-xx donors use 64k sram which will NOT natively mount physically or electrically to this pcb which is meant for 256k upto 1mbit srams. You should use a VERY low power sram like the Alliance AS6C1008

The resistors and capacitors are:

All packages are 0603

R2 500K

R6 220 ohm

R5 1.5k

R1 1k

R3 1k

There are other exposed copper pads. Do not populate them.

C12 33pF

C15 33pF ( I consider this one optional since not all OEM SA1 pcb's have this)

C1 was an electrolytic capacitor.  I chose to mount a SMT ceramic cap instead of the electrolytic. package type either 0805 or 1206 recommended

C3, C8, C7, C5, C10, C11, C4, C6, C9, C2 are all .01uF caps. I think it's safe to substitue with .1uF if desired.

C13, C14 are not populated

Note：It will take great skill to remove and re-solder the SA1 chip and other components. This is not for a novice.

We accept no responsibility for your success or failure.

The SA1 pcb doesn't use the standard SNES shell.  Reproduction shells can be purchased at Mortoffgames.com as well as other retro parts.