that link was an interesting read about something i wasn’t aware of. thank you for that. i think that solves the mystery of the eBay “reproduction” carts, at least for me.
it is running a port of retroarch. i’ve not done much research into it, but i would suggest you do before buying. retroarch hasn’t ported that well to all things.
it is always nice to see objective VB opinions brought to the public eye (ears). for what it was the VB was (is) an amazing system. about the only thing i feel it is lacking is a larger homebrew scene. i dream of a day where the VB has more completed homebrew projects than actual retail carts, sorta like what happened with the vectrex.
typical modern day reporting… interpreting articles (WIKI and other) to report personal conclusions. i can not recall reading anything that relates eye strain to the automatic “pause” feature this article incorrectly called an “automatic shutoff mechanism”. as fans know, there was more to the red LED decision than cost alone.
all of the released carts were sold with a box and manual. what you have sounds like one of the “unofficial” carts. from what i have read no one has gotten to the bottom of who is making them or how. i would love to see photos of the PCB.
both mario tennis and teleroboxer have audio before the title screen. so booting one of those should give you an indication if your system is working but the displays are not.
unpadded mario tennis crc: 7CE7460D
unpadded teleroboxer crc: 36103000
please make sure you have new batteries or a correct AC adapter to power the VB.