LG Monitor [22MP55HQ] transitions into green and black with a glitchy effect
LG Monitor [22MP55HQ] transitions into green and black with a glitchy effect
Hello, I understand you need some electronic assistance. Your LG 22MP55HQ monitor is showing a screen fade effect turning green and black during operation. You've already checked the board, replaced the capacitors, and adjusted exposure, but the issue persists. The problem seems to worsen over time, with sections freezing and not updating properly. Have you considered other potential causes or solutions? It might be worth exploring further troubleshooting steps before deciding on a replacement. Thanks for reaching out!
It seems like you're questioning whether the situation has gone too far. You might have tried using another device to check if it was your PC or GPU, and most people would likely discard it then.
I was planning to give up on this display because the board seemed fine after testing, and I was dismantling it for disposal. However, I decided to check closely in case there were hidden issues like a loose connection or a missed cable. I found a small area on the thin, wide PCB running along the bottom that was bonded to the back. Touching it with a finger resolved the problem, likely due to a change in resistance or capacitance. I couldn't identify the exact affected component, and measurements showed nothing unusual. To clean the spot, I sprayed it with isopropyl alcohol to remove finger grease. Now it's functioning properly after about an hour—no glitches detected. It’s still a bit puzzling, but maybe moisture or residue caused it. I’m not sure if it’s fixed completely, so I’ll keep monitoring. If it continues to work, I can move forward with a triple monitor setup; otherwise, I’ll keep the display until it fails again.