plane vuki

Update: It was still showing bad image, nothing fixed it. Then I decided to look inside for visible damage or burn on any components. Dissassembled: all look good, moral is low, feel very bad. Assembled back, tested: everything is good again! Huh what was that all about? My ST is in very good condition overall, very clean and no visible damages to anything. I have no idea why it suddenly showed blurry and after dissassembly+reassembly was back to normal. I think it wasnt due to not using resistor, but from now on I will for any case. Why this happened I have no idea, what was the reason. Maybe some static build up? I remember it happened when my one hand was touching ST, with other hand I toiched CRT to adjust it. If you have any idea please let me know. But for me, lessons learned so far: Use resistors, dont touch CRT and ST at the same time.

Hello. My Atari STfm was working good. I was using it with a tv-out. Today I decided to connect it VGA monitor (CRT) for hi-res and sharp image. Surfed around the internet, learned how to do, connected grounds to grounds, vsync to vsync, hsyne to hsync, and for a start: mono to green. For about 10 miniutes everything was good, got hi-res and sharp image. Then suddenly: blurry, and goes on like that. Restart: same. Mono to red/blue:same. I thought maybe my CRT is damaged for some reason, tested with PC: everything looks good. I thought maybe something wrong with ST, tested it with TV-out: blurry + colors are "not good". Any idea what went wrong and what can be done? I have a suspicion that not using a resistor at mono-out might have slightly damaged something inside? Thanks in advance. (Attached photos showing blurry image on CRT, mono to green in this case)