Having an issue with my color dmd. Works fine in menu settings but very choppy and unreadable in play or attract mode. The led light on Done is green. I reseated all cables. The cables are new. Mpu status is good. I have a pin sound and dmd lux. Those seem fine and all leds show they are operating correctly. I don’t think the issue is the dmd. Any thoughts on where my issue might be. The Mpu? I’m stumped. Thanks.
what game?
Where is the power plugged into?
Did you use the correct ROM file when updating the colordmd?
It is for CFTBL. Power is plugged into auxiliary mod power board. Also plugged into the pin sound and same issue. It is the most recent rom file.you can make out some of the creature displays like Universal, etc. Thanks.
Quoted from robey99:It is the most recent rom file.
Chroma.rom?
How about a picture of this please?
You can press the menu button. What game color ROM shows loaded?
Quoted from robey99:It is for CFTBL. Power is plugged into auxiliary mod power board. Also plugged into the pin sound and same issue. It is the most recent rom file.you can make out some of the creature displays like Universal, etc. Thanks.
When you say aux mod power board... can you swap to the "stock" install method and plug power into it directly from the power driver board?
https://www.colordmd.com/installation/Assembly%20for%20Instructions%20WPC%20CHROMA%20eDP%20rev1.PDF
I reseated the cable with power off. I also replaced the pin sound sound board and dmd and same issue. I will try another chroma version but I have downloaded the latest one twice. Is it something on the mpu? Can’t think of any other issues. I don’t want to buy another dmd. Thanks.
With power off, you can unplug that ribbon cable from the Fliptronix and sound boards.
Is this really a new Chroma DMD board? Making sure you are not using an older ColorDMD board, which requires a different color ROM file.
Thank you for the confirmation. Try this next. With power off, press on all the ICs that are in IC sockets on the CPU board, including the square IC.
Quoted from PinballManiac40:With power off, you can unplug that ribbon cable from the Fliptronix and sound boards.
This can help narrow it down if it is a ribbon cable or an issue with the data lines on one of the 2 boards you unplug.
Being sound is also being affected, back to the same ribbon cable I am pointing to in post #8. Make sure all the header board pins are straight. May have to scrub those headers on the MPU and Fliptronix boards with alcohol and a toothbrush.
You can try swapping the ribbon cable with Indy 500 to see if the issue moves.
I guess I assumed your original board worked, have you swapped back to the dmd to just verify that is displaying good or bad?
You should reseat both ribbon cables that run from the MPU to the DMD controller board. Try running a display test in the game menus all the way to the end where it tests reads/writes from the MPU to the video RAM on the DMD controller board. The results may be hard to read but that will test if there's a data communication problem between the boards.
You can also try swapping the DMD controller board from another WPC game to see if the problem follows the DMD controller.
Just got around to this. I bought a new set of ribbons and that didn’t work. I replaced the MPu with a working one. That didn’t work. I am going to try replacing the fliptronics board and then the actual color dmd. I’ll let you know. Thanks.
Quoted from Dmod:You can also try swapping the DMD controller board from another WPC game to see if the problem follows the DMD controller.
Tried this yet?
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