68kMLA Classic Interface
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| 500 series logic board caps | |
| Posted by: 3lectr1cPPC on 2023-02-21 07:35:39 found this eBay listing which specifies the cap value for the SMD cap on the board, but then I see these two purple things: 
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believe its @imactheknife's ebay listing. | |
| Posted by: joshc on 2023-02-21 08:36:36 Look to be caps yep, the silkscreen markings are C. | |
| Posted by: 3lectr1cPPC on 2023-02-21 08:38:15 purple makes me think that they may be polymer caps - in which case they're fine to leave as is. | |
| Posted by: joshc on 2023-02-21 13:02:38 Yeah, those shouldn't need replacing. | |
| Posted by: Paralel on 2023-02-22 00:31:33 Yep, those are the caps you find a Rev B logic board. The Rev A board has cylindrical electrolytics instead. That's the easiest way to tell them apart. | |
Posted by: jeremywork on 2023-02-22 03:53:55Yep, those are the caps you find a Rev B logic board. The Rev A board has cylindrical electrolytics instead. That's the easiest way to tell them apart.I didn’t realize there were two revisions. Do you have any Rev A photos handy? I’ve been cataloguing 500 series stuff recently and I guess I’ve just happened to land only Rev B units…    | |
| Posted by: Paralel on 2023-02-22 04:07:00 I'll have to try and find my spare Blackbird board that is a Rev. A. The Rev B. all around is a better design. It reduced the number of chips, realigned some of them so they are in a better place/orientation, and the electrolytics were replaced with polymer caps, except for 1 right near the two purple polymer caps. | |
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