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Nope, no system 3 labeled set will have the vertical chromacolor II chassis in it. The very first system 3's from '78 did use a power transformer driven power supply similar to the CCII sets; but, that's about as far as it goes. These early sets used a 9-153 HV/sweep module. The second generation system 3's did away with the power transformer and used a 9-160 power supply/HV module. The third generation system 3's used a 9-181 or 9-214 main board and a 9-186 HV board. As far as picture quality, the 1st, 2nd, and early 3rd generation sets had the best pictures since they used a tri-focus inline tube. The later 3rd generation and newer sets used a more modern inline tube. CRT's really didn't hold up well in the earlier system 3's, especially in anything bigger than 19". And, they all can be a pain to troubleshoot. As far as ease of service, I'd take a CCII over a System 3 anyday. I don't think the original intent was to repair system 3's to the component level. The whole idea was to find which board(s) were bad and swap them.
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