Likely not a repro in the sense that some guy on the internet made it. Very likely just a bootleg cart from the 90's.
I agree...likely a 90s bootleg cart. However, it would still be interesting to open up the Mario Kart / Pilotwings to see if they cloned the DSP1 chip or if they are reused pulls. I can't imagine it would be profitable to use pulls so there might be something to see for the clone fans here.
Thanks for that, does it use Reset to change the games or does it have a menu? Both games are 4 MBIT each, so the EPROM is 8 MBIT. It looks like a bootleg not a repro. A bit hard to see as you didn't take a full photo of the front but it looks like the wire from 74LS139 connects to the DSP-1 chip PIN 26?
very weird, looks like too much effort for a old bootleg, but cart has the pilot wings product code on the chip...strange and did you remove the cic chip yourself or was it always missing?
Very interesting. Does it play both games? It is an official board used for Pilotwings (SHVC-1BON). Mario Kart uses a bigger board and also has a save battery. Could be a semi official conversion for the Hong Kong or Taiwan market.
Looks like a hacked up Pilotwings cart intended to be used as a DSP1 cart for a cartridge copier. That would also explain the removed CIC - that would have been put on the copier main board so it could boot with no cart plugged in.
This is a DSP cart for copiers You put it on top of the copier and you can run DSP games. These were released when the first DSP games came out. This board is actually an official Pilot Wings board without the CIC: https://snescentral.com/pcbboards.php?chip=SHVC-1B0N-03 Later on, the DSP was cloned and provided on small carts or directly integrated into copiers. Your cartridge might have been slightly modified to be able to address both HiRom (like Mario Kart) and LoRom (Pilot Wings) The Pilot Wings Mask Rom is still there so it should be easy to get it working again.
