IBM RS/6000 SP, Maintenance Information

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MAP 0460: Scalable Electrical Power Base Unit
Supervisor BUS "B" Odd Nodes
LEDs
SW
Aux/Local
Aux Aux
Master Master
(Y
ellow)
(Y
ellow)
(Green) (Green)
Supervisor Bus
Active
Frame
Supervisor
Card
SEPBU
Power Chassis
(planar)
Main Power
Switch
and Led
PCI
Card
RS232 Active
+48 V
Node 16
I/O Planar
Control Sense
Supervisor BUS "A" Even Nodes
Node
Power
Supervisor
HPS
2
1
3
5
7
9
1
1
13
15
4
6
8
10
12
14
+12v
LED
CB
+48 V Status +12 V Status
J202
+12 V
RS232
Controls Status
AC
AC
AC
+12 V
J1 - J5
J7
J8
J6
+48 V dc
N+1
+48 V dc
Power
Modules
+12 V
+12 V +48 V +48 V
+48 V
Figure 1-27. SEPBU Power Diagram
002
– Problem detected concerning power in the system.
Ÿ
Main power switch LED is Off
Ÿ -AND- SEPBU rear panel LED is Off
Ÿ -AND- Frame Supervisor LEDs are Off.
Chapter 1. Maintenance Analysis Procedures (MAPs)
1-267