Pedro of the electrical shop helped to retrace wires from the racks to the breakers. Many wrong labels were replaced. These labels are still representing the south arm as Y and the east arm as X.
Racks: 1X1,2,3,4 and 1Y3,4,5,6,7 and 9 are connected through manual disconnect swithes to AC power breaker PC-1 on the west wall of IFO room 104.
This panel PC-1 is connected to T1 isolation transformer in room 101 Panel L - # 38, 40, 42
Racks: 1Y1 & 2 psl and mc are connected through manual disconnect switches to AC power breaker PC-2 just west of the psl enclosure.
This panel is connected to T2 isolation transformer in room 101 Panel L - # 32, 34, 36