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Sun™ Rack Service Manual
Sun Microsystems, Inc.
4150 Network Circle
Santa Clara, CA 95054 U.S.A.
650-960-1300
Part No. 816-6387-10
November 2002, Revision A
Send comments about this document to: docfeedback@sun.com

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Summary of Contents for Sun Microsystems Rack

  • Page 1 Sun™ Rack Service Manual Sun Microsystems, Inc. 4150 Network Circle Santa Clara, CA 95054 U.S.A. 650-960-1300 Part No. 816-6387-10 November 2002, Revision A Send comments about this document to: docfeedback@sun.com...
  • Page 2 LOOK GUIs and otherwise comply with Sun’s written license agreements. Use, duplication, or disclosure by the U.S. Government is subject to restrictions set forth in the Sun Microsystems, Inc. license agreements and as provided in DFARS 227.7202-1(a) and 227.7202-3(a) (1995), DFARS 252.227-7013(c)(1)(ii) (Oct. 1998), FAR 12.212(a) (1995), FAR 52.227-19, or FAR 52.227-14 (ALT III), as applicable.
  • Page 3: Table Of Contents

    Contents Sun Rack Service 1 Preparing the Rack for Service 1 Removing the Grounding Straps 1 Removing a Side Panel 3 Removing an Extension Panel 4 Removing the Top Panel 4 Removing and Replacing a Power Sequencer 5 Removing and Replacing a Power Strip 6...
  • Page 4 Sun Rack Service Manual • November 2002...
  • Page 5 Preface This document describes how to remove and replace the field replaceable parts in a Sun Rack and contains some troubleshooting information for isolating faults. Accessing Sun Documentation You can view, print, or purchase a broad selection of Sun documentation, including localized versions, at: http://www.sun.com/documentation...
  • Page 6 Sun Rack Service Manual • November 2002...
  • Page 7: Sun Rack Service

    Some maintenance tasks require that the panels be removed from the Sun Rack. Removing the Grounding Straps There are three grounding straps mounted to each corner of the top of the rack frame. identify which straps are connected to which panels.
  • Page 8 Front of Rack Top View of Rack Frame Showing Grounding Strap Terminals FIGURE 1-1 Grounding Strap Connections TABLE 1-1 Grounding Strap Rack Terminal Number Connected to: Rear Left Left extension panel Left side panel Rear door if hinged on left...
  • Page 9: Removing A Side Panel

    1. Disconnect the grounding strap from the stud on the top inside of the panel. 2. Release two latches on the bottom inside of the panel. 3. Pull the bottom of the panel slightly away from the rack and lift up the panel. Chapter 1 Sun Rack Service...
  • Page 10: Removing An Extension Panel

    4. Loosen the four screws that secure the top panel to the rack. 5. Slide the top panel toward the front of the rack and lift it up to remove it from the rack. To replace the top panel, reverse the order of the removal procedure.
  • Page 11: Removing And Replacing A Power Sequencer

    2. Pull the power sequencer part of the way out of the rack. 3. Disconnect three cables from the rear panel of the power sequencer. 4. Pull the power sequencer free from the cables and out of the rack. Removing a Power Sequencer...
  • Page 12: Removing And Replacing A Power Strip

    Removing and Replacing a Power Strip In order to remove the inner power strip, you must first remove the outer power strip (the one closer to the back of the rack). The removal procedure for both power strips is the same.
  • Page 13: Removing And Replacing A Cable Assembly

    Removing a Cable Assembly 1. Disconnect the cable harness to be removed from its power strip. 2. On the power sequencer side of the rack, remove the side panel, the power strip bracket cover, the power strip bracket, and both power strips.
  • Page 14: Replacing A Cable Assembly

    Viewed from the back of the rack, the cable harnesses and power sequencers are mounted on the left side of the rack. The lower cable harness (B) is shorter than the upper harness (A). Each cable carrier plate is installed in the slot above its respective sequencer.
  • Page 15 After the cable ends are inserted, insert the carrier plate and push it forward toward the front of the rack. As you slide the carrier plate in, the front end is guided by a vertical channel on the front cover plate.
  • Page 16 Secure each cluster with a single screw between the two connectors. While attaching the left-hand cluster (A) to the power input panel, ensure that the cluster supports the two cables from the right-hand cluster (B). Sun Rack Service Manual • November 2002...
  • Page 17 5. Attach the input power panel to the rack with two 8 mm screws, split washers, and flat washers. Attaching the Power Input Panel to the Rack FIGURE 1-8 6. Reinstall the power strip mounting bracket and the power strip mounting bracket cover.
  • Page 18 Sun Rack Service Manual • November 2002...
  • Page 19: Troubleshooting

    C H A P T E R Troubleshooting Power Sequencer shows only one AC circuit in a power sequencer. There are four of these FIGURE 2-1 circuits for the odd (1-7) outlet groups and five more for the even (0-8) outlet groups. Outlet Group 9 is unswitched.
  • Page 20 AC power is available to the input side of the even-numbered outlet group relays. Note: this LED only indicates that power is available to the outlet group relays; it (Input power available) does not indicate that AC power is output from the sequencer. Sun Rack Service Manual • November 2002...
  • Page 21 LED Indicators on the Power Sequencer TABLE 2-2 Condition LED Status Troubleshooting Action Normal operation Okay to Remove No action required. Fault Ready ~ AC 1-9 ODD ~ AC 0-8 EVEN Sequencer fault Okay to Remove 1. Turn off both power switches. The blue “Okay to Remove”...
  • Page 22: Power Strips

    A single LED on a Power sequencer sequencer. power strip is not lit. Fault light on? Voltage okay at the Replace cable outlet group? harness. LED is faulty. Replace power strip. Troubleshooting a Power Strip FIGURE 2-3 Sun Rack Service Manual • November 2002...

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