Only a fraction of the time, it displays the image or brand logo upon activation.
Only a fraction of the time, it displays the image or brand logo upon activation.
I own an AOC Q27G2U/BK that's quite unreliable. This annoying display occasionally shows an image but remains black. The power light stays on, the backlight seems fine (no broken image), after rebooting 30 times it sometimes displays a brand logo then nothing, and later the desktop functions again. Once it works, it stays until you change input or resolution, then it fails again. This happens with other laptops too. I have a similar AOC CU34G2X/BK34G2X monitor that works perfectly otherwise. I've tried checking transistors, rewiring, and even swapping the motherboard with my working unit, but nothing helped. My concern is whether swapping boards could cause further issues. Any advice would be greatly appreciated!
I don’t know your location, but in China those sign boards are quite affordable so you can quickly check them and find a replacement. If you have comparable choices, it’s a straightforward solution. The display panel is usually the most expensive component. If prices are reasonable, there’s no reason not to attempt a fix. You just need to compare the parts’ cost with any budget you have for a new monitor. I’ve replaced my 65" Hisense smart TV for around 15 USD after the power board failed and even swapped out my washing machine by removing the old board and installing a new one, which cost about 20 USD. It really depends on how much the parts will cost.
It sounds like you're considering a budget-friendly option for your second screen. Unfortunately, finding the right one in your area has been challenging. I'd recommend checking online marketplaces or local stores for alternatives. It might help to have more options to compare prices and features before making a decision.
It seems 30 to 50 USD might be a bit steep to start. 15 to 20 USD would make a reasonable hobby project with the chance for great outcomes. You might consider reaching out to an electrical engineer to test the circuit boards. If you locate a solid online tutorial, you could handle it yourself for the price of a decent multimeter—those are now affordable and not just limited to specialized equipment.