I received yesterday a TMNT board and to my surprise there are color glitches while gameplay. I have more than 50 boards including 4 Konami and all of them play fine. Seller says the game was working great in his cab and that my supergun is incompatible.
The game works with 5.02 volts and all intro screens and start screen are ok. While on gameplay backgrounds are black and start to have bright horizontal lines while you move your player around, sometimes background become brighter for seconds but have yellowish washed out colors. What it may be the cause? All rom checks are ok and also mask roms check says ok.
All program roms were reseated and as far as I can tell there are no legs touching under the board. I don't see any broken traces either.
I put some photos for you to see
Just send it back bro, not worth messing with it. If I ever get a board sent to me broken the seller always insists it was fine and that maybe I don't know what I'm doing but It's usually just some operator or someone cleaning out an operator and they test the board for 5 whole seconds before they send it off as "working". There's nothing special about your Raijin that would not make that game not work
Have you tried with a different display ? Not sure it is related but some time ago I've experienced color issues with my Raijin and a Cave pcb, green tint and visible line artifacts.
Turned out it was one of those pcbs set to a fixed very high RGB brightness output, and the TV I was using (RGB scart) couldn't handle such powerful levels.
Everything was fine on other TVs and monitors.
Unfortunately the Raijin doesn't come with RGB potentiometers nor a resistor switch set for this particular scenario.
A few hours ago I connected my supergun to a different inferior BVM monitor and image was excellent. I suppose my main monitor lacks something that prevented image to look properly.
So this is as I suspected, same thing that happened with my own Raijin.
I doubt the Raijin could damage pcb's, it's one of the most reliable commercial models.
Modding it to add 3 stronger resistors + a switch (or 3 potentiometers) is certainly possible, I've been thinking of doing it but couldn't find the time.
Open it and you'll see three 75 ohm resistors on the RGB output lines, clearly those aren't enough for that kind of super-bright pcb's.
Guess we'd need something like switchable 220 Ohm ?
Xyga wrote:So this is as I suspected, same thing that happened with my own Raijin.
I doubt the Raijin could damage pcb's, it's one of the most reliable commercial models.
Modding it to add 3 stronger resistors + a switch (or 3 potentiometers) is certainly possible, I've been thinking of doing it but couldn't find the time.
Open it and you'll see three 75 ohm resistors on the RGB output lines, clearly those aren't enough for that kind of super-bright pcb's.
Guess we'd need something like switchable 220 Ohm ?
Hm, that would be great! I will try to put 220 Ohm there. Golden Axe is very very bright and CPS 2 is very bright too. Only M 92 is dark. I already have made a mod by swapping the Japanese power cable with a euro power cable with ground. Those Irem M92 boards have jail bars if you lay your fingers or rest your hands on your Raijin metal housing and there is no ground connected. The Japanese cord has no ground.
