Twin famicom main board is not detecting disk drive errors

Started by doubleroost, June 17, 2022, 04:38:56 am

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doubleroost

Hi All,

Brand new here. I just finished rgb modding my twin famicom and noticed the disk system does not throw any error codes on the screen when trying to load a disk.  It just sits there saying "loading". Cartridges work with no issue. I swapped in a known good main board and the issue went away, so I know its something to do with the main board. 

I'm curious if anyone has heard of an issue like this.  My best guess is an issue with the RP2C33A chip on the main board.  But  I don't want to swap the chip out on a hunch.

Fami92

I'm having the same issue with my Twin Famicom main pcb. Did you ever swap out the RP2C33A ic chip?