It's a different board set regardless: CH256 vs CHA256B, 2 EPROMs vs P1 mask ROM.Its an OEM repair or modification.You can always tell by the eproms.
BB
one last bump
I bought this Waku Waku 7 and submitted board scans to mvs-scans.That board set is not on MVS scans, so consider sending hi-res pics of the front and backs of the PCBs. Or post here and I'll forward them.
I also have a Korean label cart but it has the same board set as pictured here: https://www.mvs-scans.com/index.php/Waku_Waku_7
Maybe run a CRC check on Unibios as well if you can.
Thanks and GLWTS.
Oh please.Uh. Don't put PCBs directly on carpet and sofa..
What about the carpet?Can confirm, game still works fine post-carpet exposure.