I've done the rgb/sync mods to make a 5" samtron interface with an arcade pcb and it more or less works, but it makes kind of a buzzing noise and has a visual artifact that I am guessing is directly related (the white lines that are bunched up on the right). I thought maybe the anode wasn't connected well, but I double checked it and it's fine. I also thought it might be the screen control being too high, but I adjusted that and the visual issue remains even when the whole picture is dim.
I don't imagine there are many samtron experts here, but do these symptoms mean anything generally to anyone? Any ideas what it might indicate or what the source of the problem might be?
I have several of these monitors that I was planning to mod for some friends, so once I get around to building those I guess I'll see if it's something wrong with how I'm doing the mod or if it is an issue with just that one monitor, but nevertheless I'd like to figure out what the problem is and get it fixed.
I tried to capture the buzzing sound on video but it just isn't loud enough, even if I put the camera inside the monitor box (frame). If there are no other sounds in the room (games off) I can hear it across the room though, so it definitely isn't "normal".
I don't imagine there are many samtron experts here, but do these symptoms mean anything generally to anyone? Any ideas what it might indicate or what the source of the problem might be?
I have several of these monitors that I was planning to mod for some friends, so once I get around to building those I guess I'll see if it's something wrong with how I'm doing the mod or if it is an issue with just that one monitor, but nevertheless I'd like to figure out what the problem is and get it fixed.
I tried to capture the buzzing sound on video but it just isn't loud enough, even if I put the camera inside the monitor box (frame). If there are no other sounds in the room (games off) I can hear it across the room though, so it definitely isn't "normal".

