Jamieson
Well-known member
Just received a Classic II and started to clean the logic board. The Maxell PRAM battery has not yet bombed, but the cap juice has claimed one victim at least. U2 fell off the board with the lightest touch. I found a schematic for the Classic II and concluded that U2 is a linear reg to generate +8V from the +12V rail. It's a little 8 pin SOIC, so there probably isn't much current draw from the +8V rail, just curious where else it goes. (That "Bomarc" schematic is, well, frankly, god-awful.)