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Thanks for the input guys. I've almost completed my mouser order for all new caps,resistors, electrolytics and the diodes. In the process, I'm familiarizing myself with the board and schematics. Other than those electrlytics, and that weird mod, I don't see anything bad or touched. I've ohmed out a few things and so far they seem ok. Using the schematics, I went back to that mod and can see what the guy did, but I don't understand why he tapped into the circuit where he did. I'm assuming he was replacing the 200uf cap from C2-B, but it's definately not connected to the same line in the circuit. I can't believe that's an appropriate place to replace the electrolytic. I would think that not having C2-B where it's supposed to be would screw up everything else after it (but then what do I know). Just seems really odd and I have to wonder if/how the set worked. I don't expect anyone to dig out the schematics, but if someones familiar enough with the circuits maybe you can take a look. The photo is a diagram that I believe shows what he did.
The other reason for modding this might be to fix a problem and isn't related to the C2-B replacement. I haven't pulled the board yet as I'll wait for new components, so I'm not able to do a better trace of the wiring. I'm sure many things will be easier and clearer after pulling the board. It just bugs me that I don't see why he stuck that wirewound resistor and 2 caps where he did.
Just to be clear. The 4100 7W resistor is the original on board component and the 1k wirewound and the 2 caps are added components. Maybe I should dim bulb this thing before sending my mouser order off and see what happens.?.
Thanks for all the advice. I'v watched many many Predicta rebuild videos and learned a lot in a short time. One piece of advice from Jordon Pier that I didn't follow was to not use a Predicta as your first rebuild. LOL! I like a challange.
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