Hi. I photographed the damage on the board. Do you know what this contact affects/means, what is it for? Naomi still working. Most likely it appeared when I wanted to connect Naomi to the TV through a chinese adapter (vga to hdmi). There was a burning smell. I immediately turned off Naomi. Then I connected it back to the old TV and everything seems to work. but at that moment my sf card 1gb Sandisk stopped loading almost all naomi/aw games. it only runs dolphin blue and some naomi games. I don't know if this is a coincidence or not.
- Thread starter TylerDurden67
- Start date
channelmaniac
Professional
That's what happens when you hook up to something that has a live chassis. This is the kind of damage seen when an arcade game board is hooked to a monitor in a cabinet that requires an isolation transormer, but doesn't have one installed. It feeds voltage back through the video cabe linto the PCB and does damage.
StormyNormy
Student
Where is the supercap located?
The mobo has a sticker stating "danger of explosion if the battery is replaced incorrectly". What can explode?
TiA
The mobo has a sticker stating "danger of explosion if the battery is replaced incorrectly". What can explode?
TiA
The battery can explode. When batteries are connected incorrectly, they can overheat or start a fire.
A new one to add to the repair log / list, haven't seen this one before.
Naomi 1 boots up but gets stuck on error 1 and test switch doesn't work, dip switches are also stuck on. Traced the dip switches all the way to the other end of the board to a 315-6146 custom chip. Thankfully the issue was the ram IC46 (62256) used by the custom and not the custom chip itself. Original ram was 70ns, I only had a 100ns ram on hand but it seems to work fine with the slightly slower one.
Naomi 1 boots up but gets stuck on error 1 and test switch doesn't work, dip switches are also stuck on. Traced the dip switches all the way to the other end of the board to a 315-6146 custom chip. Thankfully the issue was the ram IC46 (62256) used by the custom and not the custom chip itself. Original ram was 70ns, I only had a 100ns ram on hand but it seems to work fine with the slightly slower one.
