| Electronics > Repair |
| Progressive Gaming / Neurizon LED sign |
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| @rt:
--- Quote from: boffin on October 20, 2017, 11:54:31 pm ---No such luck finding anything. --- End quote --- Bummer! I was looking to toss the controller and talk to the display panel. Mine is only red & green, and the drivers are Texas Instruments TLC5921, for which datasheets are available, but what looks like the show stopper for me, is even after the controller board, they still have their PGA stuff with it’s own crystal clock on the LED display panel, which looks to be a multi layer board with no direct interface to the actual shift registers. |
| @rt:
Ok, just thinking aloud here, and would like to know if I’m not making sense. AFAIK, These are still just serial shift registers, and the display has to be actively driven through them. They are sixteen bit each, and control the rows and columns of each 8x8 LED module. Ideally, for six rows of these 8x8 LED modules, ten modules each row, you’d have to rotate out six channels of 160 bits each, and do that 64 times (one for each pixel in an 8x8 LED module) to make one video frame. It occurs to me these chips are on the board to somehow simplify the connection from the LED array to the controller PCB. It’s still a 50 way IDC connector :O I’m just hoping if they were gone, that the pins at the end of the IDC connector and the shift register chains would then all be open so I could connect those together with mod wire, and still have a somewhat neat board. |
| stj:
do you even know how to connect the display to a gaming machine yet? because that's step1 - once you know which interface you can start to get somewhere. |
| @rt:
I’m not interested in the gaming machine. I’ve already tossed the main controller board, and the audio board. I’m interested in the LED array and it’s shift registers, or the way the controller board interfaced to the LED array board. |
| stj:
then your a fool, because now you have nothing to analyse. good luck without the controller. |
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