Sun Microsystems SPARCcenter 2000 Service Manual page 116

7
Top to Bottom:
+12V (2 blue wires)
+12 Return (2 black wires)
–12V
–12V Return (black wire)
7-10
Figure 7-9 Disconnecting Bus Wires to the Backplane
Remove the Outer and Inner Bus Bars
1. Remove the outer bus bar connecting the top and bottom power supplies
(if the bottom power supply is present).
Remove sixteen nuts (each backed by a flat and lock washer) securing the
bus bar to the two power supplies. See Figure 7-10.
2. Remove four screws securing the bus bar to the cover panels (if the
bottom power supply is present) (Figure 7-10).
3. Remove the bus bar (if present) and set aside.
SPARCcenter 2000/2000E Service Manual—June 1996