was ever publicly released. The "schematics" used by the modding community are reverse-engineered diagrams created by hardware hackers.
If you overlay the schematic of an original SNES (SHVC-CPU-01) against the SNES Jr (SNS-CPU-01), the differences are stark. Here is how the schematic tells the story of the redesign.
For decades, the Super Nintendo Entertainment System has held a hallowed place in gaming history. But for hardware hackers, repair technicians, and modding enthusiasts, not all SNES consoles are created equal. The (model SNS-101), released in 1997 as a budget-friendly redesign, is a fascinating anomaly. It is smaller, sleeker, and notoriously missing one major feature: the RGB video output found on its older siblings. snes jr schematic
With the schematic in hand, you can perform these popular mods:
The Jr. outputs from the factory.
The Jr. is actually a console (one PPU). This means its internal digital video is cleaner than any original SNES—but Nintendo crippled the analog output.
This is the most studied part of the Jr. schematic. was ever publicly released
) is notoriously difficult, as Nintendo never officially released one for this specific "Mini" revision. Most community resources rely on reverse-engineered diagrams or schematics from the original 1CHIP models, which share similar integrated circuitry. Key Circuit Details & Modifications