Supplies DC power to each PCB.
Fuse condition
| Name | Rating | Connected to | When fuse is blown | |
|---|---|---|---|---|
| Cause | Error display | |||
| FU1 | 5A | CN420-1 (input) Inside PCB | PCB error | The machine does not start up. |
| FU3 | 5A | CN421-3, 4, 5 GAU | Short-circuit between GAU | The machine does not start up. |
| FU4 | 5A | CN423-4, 5, 6 HDC/PIB | Short-circuit between HDC, PIB | Varies depending on the state the machine was in when the fuse was blown. |
| FU5 | 5A | CN423-1, 2, 3 (N.C.) | - | - |