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Pin Connections
sjsoftware edited this page Jul 29, 2022
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66 revisions
We have beeped out 99.9% of the CPU6 board, except for some confirmations for bus connections or pins tied to VCC or GND.
The remaining pins are listed for confirmation, for future verification of schematics.
If you want to double check how the reverse engineering process is going, please check in with Sjsoftware, Meisaka or Chris Giorgi on the Discord.
Not Found indicates that the connection was not found from the suggestions
| Chip.Pin | To Confirm | Connections |
|---|---|---|
| A12.13 | F7.38 | |
| A12.7 | F7.37 | |
| A12.3 | F7.36 | |
| A11.17 | F9.39 | |
| A11.13 | F9.38 | |
| A11.7 | F9.37 | |
| A11.3 | F9.36 | |
| A10.13 | F7.23 | |
| A9.12 | Edge Connector B19 | |
| A9.13 | F9.23 | |
| A9.11 | B9.16 | |
| A7.17 | C6.14 | |
| A7.11 | C6.11 | |
| A6.10 | F9.22 | |
| A6.13 | F9.23 | |
| A5.5 | C1.13 | |
| A4.3 | F9.25 | |
| A4.6 | F9.24 | |
| A4.10 | F9.22 | |
| A4.13 | F9.23 | |
| B4.13 | C9.2 | |
| B4.15 | GND | |
| C3.13 | C9.12 | |
| C3.15 | GND | |
| C4.13 | C9.12 | |
| C4.15 | GND | |
| J7.6 | GND | |
| J7.8 | GND | |
| J7.10 | GND | |
| J7.12 | GND | |
| H14.14 | VCC, Possibly NC | |
| L13.11 | VCC, Possibly NC | |
| L13.15 | VCC, Possibly NC | |
| L13.12 | Possibly NC | |
| L13.13 | Possibly NC | |
| L13.14 | Possibly NC | |
| L14.1 | Possibly NC | |
| L14.2 | Possibly NC | |
| L14.9 | Possibly NC | |
| L14.10 | Possibly NC | |
| A6.12 | possibly NC | |
| D9.8 | possibly NC | |
| D9.11 | possibly NC | |
| E8.8 | possibly NC | |
| E8.9 | possibly NC | |
| E12.5 | Possibly NC | |
| E12.9 | possibly NC | |
| E12.11 | possibly NC | |
| E12.13 | possibly NC | |
| F13.6 | Possibly NC | |
| H14.12 | Possibly NC | |
| H14.14 | Possibly NC |
| Chip.Pin | Area | Connections |
|---|---|---|
| P4.7 | GND, VCC, A8, ??? | Not found ** |
| P8.14 | GND, VCC, ??? | Not found ** |
| P10.9 | Self, GND, VCC, ??? | Not found ** |
| D10.3 | K5 pin 2 or 15, H11 outputs, K11 outputs, 2 chip radius (basic gates) |
|
| M15.9 | AM2901s pins 22-25 | Not Found, believed to be NC |
| K11.11 | Not Found, believed to be NC | |
| H14.11 | AM2901s | Not found, believed to be NC |
| H14.13 | AM2901s | Not found, believed to be NC |
| D7.1 | sockets and connectors | R14, TTL connection not found |
| Chip.Pin | Area | Connections |
|---|---|---|
| B13.16 | Self, sockets | M13.7 |
| D9.14 | F7, F9 | F7.38 |
| C11.4 | F7, F9 | F7.22 |
| C11.6 | F7, F9 | F7.25 |
| J10.1 | Recheck - should be VCC or SL instruction won't work? | VCC |
| E3.19 | P7 | P7.14 |
| J12.5 | J9 | J9.5 |
| J12.1 | GND, self, top half of board (7-15) | GND |
| J12.10 | M12 | M12.2 |
| J12.11 | J9 | J9.14 |
| J12.15 | GND, self, top half of board (7-15) | GND |
| K11.5 | Self pin 4, GND, top half of board (7-15) | K11.4 |
| K11.6 | VCC, top half of board (7-15) | VCC |
| L9.3 | VCC, E6.9, J7.1 (2909), K7.1 (2909) | VCC |
| L9.4 | VCC, GND | GND |
| L9.10 | K6 | K6.3 |
| L13.1 | VCC | VCC |
| L13.2 | VCC, GND | GND |
| M7.8 | Column M, dip switch, P2, P3 connectors | F13.15 |
| M8.1 | M13, GND, top half of board (7-15), P2 connector | GND |
| M8.19 | M13, GND, top half of board (7-15), P2 connector | GND |
| M9.1 | VCC, top half of board (7-15) | D4.15 |
| M9.2 | top half of board (7-15) | GND |
| M9.4 | VCC, top half of board (7-15) | E11.6 |
| M9.10 | VCC, top half of board (7-15) | VCC |
| M9.12 | VCC, GND, top half of board (7-15) | VCC |
| M10.12 | L10.2, L10.9, L11.13, |
cut trace from resistor pack to P7 |
| M12.9 | K10.6 | |
| M13.1 | F7, F9 | F7.18 |
| M13.2 | F7, F9 | F7.19 |
| M13.3 | F7, F9 | F7.20 |
| M13.13 | F7, F9 | F7.17 |
| M14.11 | Self. P3 Connector, P2 Connector, Dip Switches, Top half of board (7-15) | P2.12, R4.5 |
| M14.19 | GND | GND |
| M15.1 | GND | GND |
| M15.19 | GND | GND |
| M15.13 | D11 | D11.7 |
| K6.4 | L5, K5 | H5.19 |
| L6.4 | L5.9 | |
| P2 Connector pins 14-26 | GND, VCC | GND |
| P3 17-20 | GND | |
| P3 21-26 | VCC | |
| P5 Connector even pins 4-46 | GND, VCC | GND |
| P6 Connector even pins 4-46 | GND, VCC | GND |
| P7.6 | GND, VCC, ??? | GND |
| P7.7 | GND, VCC, ??? | GND |
| P7.10 | GND, VCC, ??? | GND |
| P7.11 | GND, VCC, ??? | GND |
| P8.1 | GND, VCC, ??? | GND |
| P8.2 | GND, VCC, ??? | GND |
| P8.11 | E3 | E3.2 |
| P8.15 | GND, VCC, ??? | GND |
| P8.16 | GND, VCC, ??? | GND |
| P4.1 | GND, VCC, A8, ??? | GND |
| P4.2 | GND, VCC, A8, ??? | GND |
| P4.16 | GND, VCC, A8, ??? | GND |
| P4.15 | GND, VCC, A8, ??? | GND |
| P4.8 | GND, VCC, A8, ??? | VCC |
| P4.9 | GND, VCC, A8, ??? | VCC |
| P4.4 | F7, F9 | F9.37 |
| P10.1 | B9 | B9.16 |
| P10.3 | B9 | B9.12 |
| P10.10 | Self, GND, VCC, ??? | B9.7, B10.7 |
| P10.11 | Self | P10.10 |
| P10.12 | Self | P10.10 |
| P10.13 | Self, GND, VCC, ??? | B9.6, B10.6 |
| P10.14 | Self, GND, VCC, ??? | B9.5, B10.5 |
| P10.15 | Self, GND, VCC, ??? | B9.21, B10.21 |
| P10.16 | Self, GND, VCC, ??? | B9.1, B10.1 |
| K12.5 | K12.6, L11.12 | |
| K12.4 | K12.2, K12.3 | |
| K12.1 | K12.11, K12.12 | |
| M12.9 | K10.6 | |
| M12.1 | E6.7 | |
| M8.16 | P2.5 | |
| DIP.O | P3.4 | |
| DIP.M | Edge Connector B32 (!MRST) | |
| A5.9 | GND | |
| A4.9 | GND | |
| A6.9 | F11.5 | |
| B3.1 | C9.2 | |
| B3.15 | GND |
| Chip.Pin | Area | Connections |
|---|---|---|
| A10.2 | B10 | B10.16 |
| A10.5 | B10 | B10.14 |
| A14.3 | Edge Connector | T8 |
| A1.3 | Edge Connector, Column A, top half of board | A3.1, E10.12 |
| A8.11 | D9 | D9.5 |
| A8.6 | F9, F7 | F7.23 |
| A8.5 | D9 | D9.15 |
| A8.2 | D9 | D9.12 |
| B7.5 | C8, B1-B10, C1-C6 | C8.8 |
| B8.2 | Recheck B9, B10 | B9.16 |
| B8.3 | Recheck B9, B10 | B9.16 |
| B11.9 | B10, B9 | B10.16 |
| B11.10 | B10, B9 | B10.14 |
| C7.9 | B9, B10 | B9.14 |
| C10.5 | D9 | F11.4 |
| D6.10 | Self pin 3, B7-B15, C7-C15, D7-D15 (seem to have missed this in the last session) | B11.6 |
| D7.1 | sockets and connectors | R14 |
| D7.4 | VCC, GND | GND |
| D7.12 | VCC, GND | GND |
| D7.11 | E7-15, F11-15, H11-15, J9-15, K9-15, L10-15 | M9.3 |
| D8.1 | Top half (7-15) of board | D12.13, E11.4, M8.14 |
| D8.4 | Top half (7-15) of board | M8.12 |
| D8.9 | Top half (7-15) of board | M8.6 |
| D8.13 | Top half (7-15) of board | D12.4, JP1.3, C8.6 |
| D10.3 | C13.2 | C13.2 |
| D10.6 | C13 | C13.12 |
| D11.3 | F7, F9 | F9.38 |
| D11.6 | F7, F9 | F9.36 |
| D12.1 | Top half of board (7-15) | B12.11 |
| D12.2 | Top half of board (7-15) | D8.9, M8.6, P2.11 |
| D12.4 | Top half of board (7-15) | B12.12, C8.6 |
| D12.9 | Top half of board (7-15) | C10.12 |
| D12.12 | Top half of board (7-15) | B12.3 |
| D13.13 | D14, D15 | D15.16 |
| D14.19 | GND | GND |
| D14.17 | VCC | VCC |
| D14.18 | GND | GND |
| D14.9 | C9, Top half Column J (7-15) | C9.19, J12.12 |
| D14.11 | C9, Top half Column J (7-15) | C9.16, J12.4 |
| D14.13 | C9, Top half Column J (7-15) | C9.15, J11.4, J11.15 |
| D14.15 | C9, Top half Column J (7-15) | C9.12, J10.15 |
| D15.17 | VCC | VCC |
| D15.18 | GND | GND |
| D15.19 | GND | GND |
| D15.9 | C9, Top half Column J (7-15) | C9.9 |
| D15.11 | C9, Top half Column J (7-15) | C9.6 |
| D15.13 | C9, Top half Column J (7-15) | C9.5 |
| D15.15 | C9, Top half Column J (7-15) | C9.2 |
| E10.5 | Top half of board (7-15) | B15.9 |
| E10.9 | Self, Resistor Packs, Dip Switches, Top half of board (7-15) | M14.9 |
| E11.1 | Top half of board (7-15) | E14.2, E11.2 |
| E11.4 | Top half of board (7-15) | M8.14 |
| E11.11 | Top half of board (7-15) | E14.9, E8.12 |
| E12.3 | P10 socket (F15), Top half of board (7-15) | P4.7 |
| E14.3 | E10, Top half of board (7-15) | E10.12 |
| E14.5 | E15, D14-H14, E12-E7, C14-C7, Top half of board (7-15) | E14.4 |
| E15.2 | VCC, GND, Self, B15, C15, C8, Top half of board | GND |
| E15.4 | Verify E14.12, VCC, GND, Self, B15, C15, C8, Top half of board (7-15) | E14.12 |
| E15.12 | VCC, GND, Self, B15, C15, C8, Top half of board (7-15) | GND |
| F12.2 | VCC, GND, Self, Top half of board (7-15) | GND |
| F12.10 | Self, VCC, E15 Top half of board (7-15) | VCC |
| F12.13 | Self, VCC, D4, F14, Top half of board (7-15) | VCC |
| F13.1 | D4, VCC, Top half of board (7-15) | VCC |
| F14.4 | Self, F13,F12,F11 Top half of board (7-15) | F14.5, F13.5 |
| F14.5 | Self, F13,F12,F11 Top half of board (7-15) | F14.4 ,F13.5 |
| H12.1 | E14.10 (verify) | E14.10 |
| H12.4 | VCC, GND, Top half of board (7-15) | GND |
| H12.15 | Self pin 1, VCC, GND, Top half of board (7-15) | GND |
| H12.12 | Self pin 4, VCC, GND, Top half of board (7-15) | GND |
| H13.12 | K11.3, Top half of board (7-15) | K11.3 |
| H14.4 | K13, D14, D15, Top half of board (7-15) | K13.3, GND |
| H14.6 | K13, D14, D15, Top half of board (7-15) | P3.9 |
| H14.10 | M7, Top half of board (7-15) | A14.4 |
| H14.7 | F9.24 | |
| J9.11 | F7 | F7.33 |
| J9.14 | Self pin 2 | J9.2 |
| J10.1 | F7, F9, J9-15, K9-15 | |
| J10.9 | L9 | L9.7 |
| J11.4 | C9 | C9.15 |
| J11.3 | VCC | VCC |
| J11.1 | F7, F9, J9-15, K9-15 | GND |
| J11.14 | VCC | VCC |
| J11.12 | F7, F9, J9-15, K9-15 | VCC |
| J12.6 | M12 | M12.5 |
| J13.6 | J9 | J9.5 |
| J13.4 | J9-15, K9-15, M12, top half of board (7-15) | C8.6 |
| J13.3 | GND | GND |
| J13.6 | J9 | J9.5 |
| J13.11 | J9-15, K9-15, M12, top half of board (7-15) | J9.7 |
| J13.13 | GND | GND |
| K13.3 | GND | GND |
| K13.13 | GND | GND |
| K13.10 | M12, F13, VCC, GND, top half of board (7-15) | F11.4 |
| F6.6 | GND | GND |
| F6.5 | VCC | VCC |
| F6.4 | J9 | J9.10 |
| F6.3 | GND, VCC, J9-15, K9-15, M12 | GND |
| F6.1 | H5, F5 | GND |
| H6.5 | J9 | J9.10 |
| H6.10 | VCC, GND, J9-15, K9-15, M12 | GND |
| H6.13 | VCC, GND, J9-15, K9-15, M12 | VCC |
| Chip.Pin | Area | Connections |
|---|---|---|
| A15.11 | Column A, edge connector | T27, resistor array |
| A14.1 | Column A, B7-B15, C7-C15, D7-D15 | Pin 2, E15 pin 5 |
| A14.2 | Column A, B7-B15, C7-C15, D7-D15 | Pin 1, |
| A14.4 | Check A14.6 on edge connector first, Column A, B7-B15, C7-C15, D7-D15, Possibly NC | A14.5, B10.10 |
| A14.5 | Check A14.6 on edge connector first, Column A, B7-B15, C7-C15, D7-D15, Possibly NC | A14.4 |
| A14.6 | T26 | |
| A14.13 | Column A, B7-B15, C7-C15, D7-D15 | A14.12 |
| A13.1 | A13 other pins, B7-B15, C7-C15, D7-D15, VCC, GND | A13.2 |
| A13.9 | A13.10 | |
| A13.13 | A13 other pins, B7-B15, C7-C15, D7-D15, VCC, GND | A13.12 |
| A3.9 | B1-B6, C1-C6 | C6.14 |
| A2.13 | Column A, B7-B15, C7-C15, D7-D15 | A2.12, C10 pin 10 |
| A2.10 | Column A, B7-B15, C7-C15, D7-D15 | A15.6 |
| B7.2 | Column A, Column B, Column C, D7-D15 | C7.4 |
| B7.3 | Column A, Column B, Column C, D7-D15 | C7.1 |
| B8.1 | Column A, Column B, Column C, D7-D15 | C8.5, B10.10 |
| B8.2 | Column A, Column B, Column C, D7-D15 | B8.3, B9.16 |
| B8.3 | Multiple, Column B, Column C, D7-D15 | B8.2 |
| B8.4 | Multiple, Column B, Column C, D7-D15 | B10.12 |
| B8.5 | Multiple, Column B, Column C, D7-D15 | B10.14 |
| B8.6 | Multiple, Column B, Column C, D7-D15 | B10.16 |
| B8.8 | B12.1 | |
| B10.21 | B1-B6, C1-C6 | C6.14 |
| B10.6 | B1-B6, C1-C6 | C4.5 |
| B10.7 | B1-B6, C1-C6 | C4.2 |
| B10.19 | GND | GND |
| B10.17 | VCC | VCC |
| B10.18 | GND | E12.4 |
| B10.9 | C9 | C9.19 |
| B10.11 | C9 | C9.16 |
| B10.13 | C9 | C9.15 |
| B10.15 | C9 | C9.12 |
| B12.4 | Column A, Column B, Column C, D7-D15 | A2.1 |
| B12.5 | Column A, Column B, Column C, D7-D15 | E8.13 |
| B12.9 | Column A, Column B, Column C, D7-D15 | F11.4 |
| B15.1 | VCC, Column A, B7-B15, C7-C15, D7-D15 | VCC |
| B15.4 | VCC, Column A, B7-B15, C7-C15, D7-D15 | VCC |
| B15.13 | VCC, Column A, B7-B15, C7-C15, D7-D15 | VCC |
| C15.1 | GND, VCC | VCC |
| C15.2 | B7-B15, C7-C15, D7-D15, top half (7-15) of board | A15.4 |
| C15.3 | VCC, GND, C9, F9, F7 | GND |
| C15.4 | VCC, GND, C9, F9, F7 | GND |
| C15.5 | VCC, GND, C9, F9, F7 | GND |
| C15.6 | VCC, GND, C9, F9, F7 | GND |
| C15.10 | VCC, GND | GND |
| C14.3 | D9 | D9.12 |
| C14.6 | D9 | D9.15 |
| C14.10 | D9 | D9.5 |
| C14.11 | C13 pin 15 | C13.15 |
| C14.13 | D9 | D9.2 |
| C14.15 | stop if found: GND, VCC, K5, D12, D11, D10, D9, D5 | GND |
| C14.1 | stop if found: K5, D6, D5, D4, E7, E6, E5, F6, J13-9, K13, H11, K11 | K5.2 |
| C13.4 | B13 | B13.9 |
| C11.2 | GND or pin 1 | C11.1, D4.12 |
| C11.11 | C12 | C12.6 |
| C11.12 | C12 | C12.5 |
| C11.13 | C12 | C12.4 |
| C11.14 | C12 | C12.3 |
| C11.15 | GND, VCC, D5 | GND |
| C12.2 | GND or pin 1 | D4.12 |
| C12.15 | GND, VCC, D5 | GND |
| C10.1 | Column A, Column B, Column C, D7-D15 | L11.7 |
| C10.9 | Column A, Column B, Column C, D7-D15 | H11.13 |
| C10.11 | B12? | B12.2, B12.13, B7.8 |
| C10.13 | Column A, Column B, Column C, D7-D15, possibly NC | C5.15 |
| C9.3 | F7, F9 | F9.36 |
| C9.4 | F7, F9 | F9.37 |
| C9.13 | F7, F9 | F7.36 |
| C9.17 | F7, F9 | F7.38 |
| C9.18 | F7, F9 | F7.39 |
| C8.1 | B1-B6, C1-C6 | B4.2 |
| C8.5 | B7-B15, C7-C15, D7-D15 | B10.10 |
| C7.5 | B7-B15, C7-C15, D7-D15 | B6.13 |
| C7.12 | B7-B15, C7-C15, D7-D15 | B9.12 |
| D6.1 | B7-B15, C7-C15, D7-D15 (need to find an output pin) | B15.10, F11.9 |
| Chip.Pin | Area | Connections |
|---|---|---|
| E8.13 | B12.5 | |
| H11.14 | D7.14 | |
| H11.13 | C10.9 | |
| H11.11 | D6.14 | |
| H11.10 | D6.5 | |
| H11.7 | C11.9, C12.9 | |
| D6.15 | GND | |
| D6.2 | H12.9, D6.11 | |
| F11.11 | B11.2, B11.13 | |
| F11.10 | A13.12 | |
| F11.7 | B6.1, B5.1 | |
| F11.6 | E14.1, D6.6, D6.13 | |
| F11.4 | B12.9 | |
| D6.3 | C10.4, F12.12 | |
| J7.15 | D4.5 | |
| D4.4 | A14.8 | |
| A14.9 | A14.10, A15.2 | |
| K11.10 | B9.20, B10.20 | |
| H13.13 | K12.13 | |
| K12.3 | K12.2 | |
| K13.7 | L7.6 | |
| K13.9 | L7.8 | |
| K9.1 | B12.3 | |
| K9.2 | C13.2 | |
| K9.3 | D10.4 | |
| K9.4 | F12.9 | |
| K9.15 | D12.1 | |
| K9.14 | F14.6 | |
| K9.13 | B15.6 | |
| K9.12 | H13.6 | |
| F11.12 | M8.17, E11.13 | |
| B12.8 | F13.3 | |
| A12.19 | K11.7, E15.10 |
| Chip.Pin | Area | Connections |
|---|---|---|
| A2.9/10 | A15.6 | |
| A2.11 | Card Edge Front P11 | |
| A3.12 | H12.2 | |
| A14.11 | Card Edge Front P29 | |
| H11.4 | GND | |
| H11.5 | GND | |
| H11.6 | VCC | |
| H12.5/11 | L13.4/L11.9 | |
| L11.2 | P7.3 | |
| L11.6 | M10.13/L10.5 | |
| L11.7 | C10.1 | |
| L11.15 | GND | |
| L14.4 | L14.5 |
| Chip.Pin | Area | Connections |
|---|---|---|
| M14.3 | AM2901s pins 22-25 | P3.1 |
| M14.5 | AM2901s pins 22-25 | P3.2 |
| M5.2 | Column J and K (J10-13, K9, K13) | J8.7(2909), J10.10, K13.2 |
| M5.5 | Column J and K (J10-13, K9, K13) | J8.9(2909), J10.11, K13.14 |
| M5.6 | Column J and K (J10-13, K9, K13) | L8.9(2909), K9.9, J11.7 |
| M5.9 | Column J and K (J10-13, K9, K13) | L8.7(2909), J11.11 |
| M5.12 | Column J and K (J10-13, K9, K13) | J8.13(2909), J11.10, J13.14 |
| M5.15 | Column J and K (J10-13, K9, K13) | J8.11(2909), J10.7, J13.2 |
| M5.16 | Column J and K (J10-13, K9, K13) | L8.11(2909), K9.10, J12.2 |
| M5.19 | Column J and K (J10-13, K9, K13) | L8.13(2909), K9.11, J12.14 |
| M15.12 | AM2901s pins 22-25 | P3.7 |
| M15.14 | AM2901s pins 22-25 | P3.6 |
| M15.16 | AM2901s pins 22-25 | P3.5 |
| M15.18 | AM2901s pins 22-25 | P3.3 |
| M15.3 | AM2901s pins 22-25 | P3.10 |
| M15.5 | AM2901s pins 22-25 | P3.11 |
| M15.7 | AM2901s pins 22-25 | P3.12 |
| D10.2 | K5 pin 2 or 15, H11 outputs, K11 outputs, 2 chip radius (basic gates) | K5.15 |
| Chip.Pin | Area | Connections |
|---|---|---|
| A1.2 | possibly ground or +5V | GND |
| A1.8 | B11, B12, C11, C12, B15, C14, A15, A14, A13 | B11.4 |
| A1.12 | possibly ground or +5V | GND |
| B1.7 | B6.7 | B6.7 |
| B1.10 | Possibly ground or +5V | GND |
| B1.12 | B3, A4 | B3.5 |
| B1.13 | B3, A4 | B3.11 |
| B1.14 | B3, A4 | B3.14 |
| B2.2 | C2.2, B5.2, C5.2, D6 | C2.2, B5.2, C5.2, D6.9 |
| B2.9 | C2.9, E7, E6, E5, Rows 11,12,13,14, Row 15 A-E | C2.9, K11.9 |
| B2.10 | ground (check pin with 8) | GND |
| D4.14 | D4.4 AND (H11.10-11, 12-15, K11.10, 11, 13, 15) | D4.4, E7.6 |
| D4.5 | F11.15? M13.15? | F11.15 |
| D5.10 | Should be M6.19? (beeped as pin 18) | M6.1, M6.19 |
| K11.1 | E5/J5/2901 | E5.15, K12.9 |
| K11.2 | E5/J5/2901 | J5.19, K12.8 |
| K11.3 | E5/J5/2901 | J5.16, H13.12 |
| Chip.Pin | Area | Connections |
|---|---|---|
| E6.6 | VCC | |
| E6.4 | GND | |
| E6.5 | GND | |
| E6.1 | E5.10 | |
| E6.2 | E5.2 | |
| E6.3 | E5.12 | |
| E7.6 | D4.4 | |
| E7.4 | GND | |
| E7.5 | GND | |
| E7.1 | J5.15 | |
| E7.2 | J5.2 | |
| E7.3 | GND | |
| D2.1 | E2.13 | |
| D2.2 | E2.9 | |
| D2.3 | E2.10 | |
| D4.1 | VCC | |
| D3.6 | E2.13 | |
| D3.4 | GND | |
| D3.5 | GND | |
| D3.1 | E2.9 | |
| D3.2 | E2.10 | |
| D3.3 | E2.11 | |
| D13.1 | D4.2 | |
| A6.7 | D4.7 | |
| A4.7 | D4.10 | |
| C12.1 | D4.12 | |
| D5.1 | VCC | |
| D5.3 | D3.15 | |
| D5.4 | D3.14 | |
| D5.6 | D3.11 | |
| D5.11 | D3.10 | |
| D5.13 | D3.12 | |
| D5.14 | D3.13 | |
| A9.7 | D4.2 | |
| M7.19 | D4.5 | |
| M7.1 | D4.7 | |
| M6.19 | D4.10 | |
| A8.7 | D4.12 | |
| A12.11 | D4.15 | |
| C9.1 | E6.14 | |
| C13.1 | E6.13 | |
| D9.1 | E6.12 | |
| D11.1 | E6.11 | |
| C4.1 | E6.10 | |
| M12.1 | E6.7 | |
| K7.1 | E6.9 | |
| J7.1 | E6.9 | |
| L6.10 | H11.9 | |
| L6.9 | P7.9, 4.7k pullup (possibly resistor array next to AM2901s) | |
| F7.40 | L6.8 | |
| F9.40 | L6.8 |
- CPU6 Board
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