Ceramic Cap for Electrolytic

[JohnCT]

Originally Posted by Phil

At first I thought Tom might have gotten some bad weed as C904 A & B are shown wired in parallel and I don't know what a 15K cap would be. The schematic is obviously in error.
R602, a 15K resistor is probably between the two sections but according to the schematic R602 is shorted out by a connection between points shown as 21 and 7. So Tom is correct and the schematic is not! If we assume Sony didn't put a resistor in there and then short it out we have the 470 mfd filtering the incoming DC and the 10 mfd on the base of Q801, probably to reduce noise.

Actually, both the schematic and Tom are correct. What's not easy to see on a phone screen is that the caps aren't wired together at all - that line is the physical edge of the board's substrate that seems to be jumping the caps. If you follow that line, it goes all around the board and would seem to connect to a bunch of stuff.

Many schematics do that but they'd break up that line into dashes so there would be no confusion.

I'm so badly farsighted these days that blowing up the pic to see the caps meant I couldn't see the forest for the trees.

John