Hi,
I am just getting started and got my first arcade game. It's a data east version of commando. The game seems to play fine but a lot of the background graphics are missing or bad. I have been doing a lot of reading and watching tutorial on arcade game repairs and this is what I have done so far:
1.Checked Power supply. It's at 5.1v
2.Checked power on the board. It's getting 5.0v
3.Unseated, cleaned legs, and replaced all rom chips
4.Cleaned board edge connectors.
I have ordered and will be trying to learn how to use a logic probe to help diagnose further.
Also I have ordered a GQ-4X usb programmer which I figured I would eventually need.
I would appreciate any advice on where to look next, what to do next etc. Is there any info available as to which roms contain which images? Might help me narrow my search as to which part(s) of the board is bad.
Thanks,
Eric
I am just getting started and got my first arcade game. It's a data east version of commando. The game seems to play fine but a lot of the background graphics are missing or bad. I have been doing a lot of reading and watching tutorial on arcade game repairs and this is what I have done so far:
1.Checked Power supply. It's at 5.1v
2.Checked power on the board. It's getting 5.0v
3.Unseated, cleaned legs, and replaced all rom chips
4.Cleaned board edge connectors.
I have ordered and will be trying to learn how to use a logic probe to help diagnose further.
Also I have ordered a GQ-4X usb programmer which I figured I would eventually need.
I would appreciate any advice on where to look next, what to do next etc. Is there any info available as to which roms contain which images? Might help me narrow my search as to which part(s) of the board is bad.
Thanks,
Eric
