Quote:
Originally Posted by vol.2
I finished with the caps, and the last one changed was the big ballast cap that's in a can. It has a 470uf and a 10uf cap in it, but the schematic calls for a 470 and .022uf cap in the parts list, but a 10uf cap in the schematic.
I installed the .022uf cap instead of the 10uf that was in there. Do you think that one is an issue? I have some 10uf at 250 Electrolytics I can use. The parts list calls it a mylar cap. I honestly don't know what's in the can, but my guess is they are both electrolytic in there.
Thanks
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Odd that they would put a 470uf and a 10uf in a can and tie them together, unless Sony just had a metric sh*tload of these left over... The other possibility is when the caps are electrically tied together but are physically on the other side of the board, but that's pretty uncommon from my experience.
If a circuit needs just 10 more uf to run on top of 470uf, it's being run too close to tolerance which is something Sony wouldn't do, so unless they're just using a double can from left over stock, my guess is that it is a small value cap used to help snub out high freq noise.
Zeno makes a great point about putting two different types of caps in one can, but we *are* talking about Sony after all!!
Since 10 more uf won't make a difference added to 470uf in a bypass configuration, I'd be inclined to add a small value cap in place of the 10uf. If the 10uf is tapped on a point physically away from the 470uf section, I'd use a 10uf with a small value cap across it just to cover all bases.
John