MV-1FZ Backup RAM Help

GadgetUK said:

I've done another crusty repair and video, but at the same time I thought I would share this with the community. The cause (74HC259 & HC04) might be the reason others have failed to fix their BRAM faults on the 1FZ.

This diagram (and notes on connectivity testing) may help someone.

http://www.neo-geo.com/forums/attachment.php?attachmentid=51003&d=1532965023&thumb=1&stc=1

Click to expand...