Hi all. I have an issue with an Color Composite IIe monitor, model A2M6021 that I was hoping someone on the forum could help me with.
I have had the monitor for about three years now. Has worked flawlessly with my IIe since then. Recently, it started to develop a high voltage arcing issue. I would hear an occasional snapping sound, see a flash on the screen, and smell an acrid odor coming from the back of the monitor. After opening up the monitor, giving the surfaces a good dusting using anti-static brushes and compressed air, I was able to find the source of the arcing. It is located at a particular pin of the tube socket on the CRT neck board. I will attempt to post a few photgraphs of the area.
I am not familiar enough with troubleshooting monitors to know where to begin with this. I was considering desoldering and then resoldering that pin, to see if the solder joint might be the issue. But I thought I would try getting some advice before proceeding. I was able to download the Apple Services Procedures manual from the Internet Archive, which has some information but has no wiring schematics or reference voltages I can use to do testing. I am flying blind here, and hope that someone on the forum can point me in any useful direction.
Thanks in advance!