Hello guys
i hope i can find some help here
![Pray :pray:](https://www.pcenginefans.com/forum/Smileys/default/eusa_pray.gif)
My GT had some issues with the -25V and could not produced a correct voltage for the lamp. When sometimes it decided to properly work, however, the unit was working and i did not have any problems, it was previously recapped by me with ceramic smd's.
I then decided to LCDDRV the unit, and after the installation it worked fine 3-4 circles (on/off) then it keeps having this color issue that i cannot figure out. I have a purple screen with no game and wrong/missing colors with it. The kit comes from Aliexpress.
I checked the voltage, Q502 is 4.8V, however raising it or lower it with VR501 pot did not change my problem. I also wonder what is the proper voltage for that pot
![Thinking :-k](https://www.pcenginefans.com/forum/Smileys/default/eusa_think.gif)
Are there any common fails on this lcddrv chinese clones or mu GT has developed some issues? Maybe with 6264 srams, are they responsable for the video color?
i cannot find someone with my same problem, hopefully some of you can help me with it.
Thanks
https://ibb.co/Lk15FW0https://ibb.co/hDMr0Z8