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Home▸ Forums▸ 68kMLA▸ Help! Attempting SE/30 cpu socket to PowerCache pinout — #31
Post #31 by tt
Source Forum68kMLA
Category68k
Post DateThu, 20 Oct 2011 - 05:21
Original URLhttps://68kmla.org/bb/threads/help-attempting-se-30-cpu-socket-to-powercache-pinout.24040/
Post
I probed the pins in red, and it seems like they aren't connected to the pins at the cache slot.

I probed the resistors:

R1: 678 ohms

R2: 390 ohms

R3: 678 ohms

The pins below are ones I happened to find first, and then I started poking other ones that seem related.

R1: F11 short and other pins labeled +5, F12 390 ohms

R2: L6 short and other pins labeled +5

R3: L6 short and other pins labeled +5

There's also a C3 and a C9 underneath the male-to-male socket adapter. I used the Daystar PGA puller to get that part off.

C3: H3 & GND

C9: F2 & GND

I don't really understand what should be connected to what for resistors and capacitors, like should the resistors be in series with links between the cache and cpu sockets? Maybe a hypothetical schematic would help me understand how to probe it more efficiently.

mp.ls