[Coco] I've killed my CoCo3
paulfe3 at swbell.net
Thu Oct 19 07:13:22 EDT 2017
Yesterday evening I decided to replace the 6809 with a 6309 in my CoCo 3. Although I am still an amateur with a soldering iron, I've been practicing and recently completed this same process on one of my CoCo 2 systems where I clipped out the 6809, desoldered the remaining pins, and soldered in a socket. However, when I tried this same approach on my CoCo 3, as soon as I started using solder wick, I noticed some of the solder pads began to come off. I don't think I was using excessive heat (same iron, same heat settings as before). Even the traces on the board began to lift up. It became clear to me after this happened to a few pads that I had destroyed the board.
If anything I was more gentle with the CoCo 3 board than I was with the CoCo 2 board before. It was evident that the CoCo3 board was more "weathered" than any of my other systems... more dust and dirt inside, a lot of oxidation on the RF modulator box, etc. It may be that this CoCo 3 spent many years in a garage or shed prior to me rescuing it from eBay last year.
Any advice on how to avoid from happening again this in the future?
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