MAP 0460: Scalable Electrical Power Base Unit
016 (continued)
– Go to Step 077 on page 1-278 to verify fix.
017
– Reconnect cables PDU-BH-P7 and PDU-BH-P8 one-at-a-time, checking frame supervisor LEDs and
SEPBU rear panel LED for LEDs to go unlit, each time.
Do LEDs go unlit after reconnecting either cable.
Yes No
018
No problem found.
– Go to Step 077 on page 1-278 to recheck SEPBU.
019
Short isolated to a single supervisor harness.
– Disconnect the shorted supervisor harness from the processor node(s) N00-BH-J7 and/or switch assem-
blies S00-BH-J2 (one at a time), until the short condition disappears, or the supervisor harness is
entirely disconnected.
Does the short condition disappear by disconnecting the supervisor harness from a processor
node(s) and/or switch assemblies?
Yes No
020
– Replace this supervisor harness.
– Go to Step 029 on page 1-271 to verify fix.
021
Short is inside a processor node or switch assembly.
– Go to Step 022.
022
– Refer to "Service Position Procedures" in
IBM RS/6000 SP: Maintenance Information, Volume 3,
Locations and Service Procedures to place processor node or switch assembly into service position.
Is this a wide processor node, SPS or SPS-8 switch assembly?
Yes No
023
Condition detected in a thin processor node or switch assembly.
– Disconnect cable N00-NS-P101 or S00-SP-P101 at supervisor card, then check for a short
between pin 1 and 2 on component U102 (large power transistor) on supervisor card. U101 pin 1
is marked.
Do you detect a short condition between U101 pins 1 and 2?
Yes No
024
– Reattach cable N00-NS-P101 or S00-SP-P101 at supervisor card.
– If this is a thin processor node, access the connector panel at rear of processor node (near
N00-BH-J7).
(Step 024 continues)
1-270
RS/6000 SP MAPs
Содержание RS/6000 SP
Страница 1: ...RS 6000 SP IBM Maintenance Information Volume 2 Maintenance Analysis Procedures GA22 7376 01...
Страница 2: ......
Страница 3: ...RS 6000 SP IBM Maintenance Information Volume 2 Maintenance Analysis Procedures GA22 7376 01...
Страница 8: ...vi RS 6000 SP MAPs...
Страница 10: ...viii RS 6000 SP MAPs...
Страница 16: ...xiv RS 6000 SP MAPs...
Страница 20: ...xviii RS 6000 SP MAPs...
Страница 60: ...MAP 0130 Processor Node Figure 1 7 Thin Node High Level Diagram 1 40 RS 6000 SP MAPs...
Страница 64: ...MAP 0130 Processor Node Figure 1 11 604 or 604e High Node High Level Component Diagram 1 44 RS 6000 SP MAPs...
Страница 196: ...MAP 0300 332 MHz SMP Node Power 064 continued Go to Step 008 on page 1 169 1 176 RS 6000 SP MAPs...
Страница 383: ......
Страница 387: ......