Hi guys,
So I finally did my first GBS Control setup today, but sadly I just can't make it work.
My GBS 8220 is connected to a Micomsoft XSelect-D4 (a japanese D terminal/RGB/Component selector) though the VGA out, which basically pass-through any RGB or component signal I throw at it.
(the other D terminal output is directly connected to my TV)
With the default 8220 firmware, both the 240p/480i and 480p can be displayed on my monitor (but of course the 240p/480i are not displayed correctly on my LCD).
I now have a NodeMCU, so I connected the 3V, GND, D1, D2, and D6 of it respectively to the VCC, GND, SDL, SDA and debug pin of the 8220.
With the Arduino IDE I tried to flash the NodeMCU with first "NodeMCU 1.0" mode and then reflashed with "WeMos D1 R2 & mini" mode after seeing the comment inside the code.
The problem is that when I power it on, there is
no signal at all coming out of the VGA output, no matter what I try.
I can access to the NodeMCU web server, not nothing helps making the output VGA to react.
In the troubleshooting part of the guide, I checked point 1 and 2, but I wonder how to do the 3rd point.
I know my RGB21 (japanese SCART) cables do have a 75/100 resistor inside for the sync, but not sure if it the same thing.
In the Sync part of the guide, it's explained, but despite my efforts trying to understand it and how to do it safely, I really don't know if I need to add some circuit for the sync signal and how/where to do it.
If I understand correctly, the sync circuit should be made for the sync-in, so no matter if it's done of not, I should still have something coming out of the output VGA, right?
Sorry for all those questions, I tried to figure out by myself but couldn't find how to make it work
Here is an image of my setup, don't know if it helps: