If I had a PSOne on hand I'd probe the rest myself but like I said Sony can't seem label their board worth a damn and the schematics are somewhat different than the board layout. Probably just due to making the schematic easy to read and the board as compact as possible.
FWIW hitting up google to find out what the symbols on a schematic mean is a royal bitch. The diode is in fact a zener diode but IIRC they are also at a set voltage in order to do their job.
My feedback thread, since it seems somewhat difficult for people to find.
Also, I personally prefer people accepting they do not know enough about something and have them reach out for more knowledgeable people's advice than those that act like they know but don't(not directed against haunted360, just saying in general). So peoples accepting their lack of expertise about a specific subject but do try to listen to knowledgeable advice are not what I consider trolling. I did listen to your advice and looked at the schematic and also tried to follow others forum members advices and provided the info requested by APE. So I do not see how you can get so frustrated.
Last edited by SkinnyV; 06-14-2012 at 04:44 PM.