Jitter on 8200 with ESP8266 Issue

[thehack904]

Hello,

I am currently trying to restore a Super Monoco GP Upright. The CRT has given up the ghost. I have been able to wire in the 8200 with ESP8266 with GBS-control firmware from Github. I have clean all the leads for the RGB and H-Sync / V-Sync as well. For some reason I can not get rid of Jitter that seems to be plaguing me.

Here is a link to a video of the issue.
https://youtu.be/C2QLY0ULp1I

I have been working on this project for several months an have finally gotten the video to be this stable. I think this is the last hurdle to being able to button everything back up.

Any help/suggestions are welcome.

[kitty666cats]

Hello,

I am currently trying to restore a Super Monoco GP Upright. The CRT has given up the ghost. I have been able to wire in the 8200 with ESP8266 with GBS-control firmware from Github. I have clean all the leads for the RGB and H-Sync / V-Sync as well. For some reason I can not get rid of Jitter that seems to be plaguing me.

Here is a link to a video of the issue.
https://youtu.be/C2QLY0ULp1I

I have been working on this project for several months an have finally gotten the video to be this stable. I think this is the last hurdle to being able to button everything back up.

Any help/suggestions are welcome.

Are you using RGBHV or RGBS for the GBS8200's input signal? If using RGBHV, I suggest trying RGBS if possible and seeing if that resolves it. Output signal can be left as RGBHV

[thehack904]

Are you using RGBHV or RGBS for the GBS8200's input signal? If using RGBHV, I suggest trying RGBS if possible and seeing if that resolves it. Output signal can be left as RGBHV

I am currently using the 8 pin RGBS for input. The cabinet has the component video for the CRT with a separate v-sync / h-sync.

Maybe I missed something on the wiring. Here is a link to the schematic: https://arcarc.xmission.com/PDF_Arcade_ ... (Sega).pdf Pages 20-22 have the wiring. I am trying to convert the component inputs into VGA to replace the crt. The CRT finally gave up the ghost last year.

My only other option is to possibly find a universal neckboard replacement for the CRT. Unfortunately I believe the guns on the CRT are about shot too.