HP 660ex Service Manual
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HP Optical Jukebox
Models 660ex/1200ex/1200mx/2200mx
Service Manual
Edition 2
Manufacturing Part Number: HP Part No. C1104-90038
July 2003

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Summary of Contents for HP 660ex

  • Page 1 HP Optical Jukebox Models 660ex/1200ex/1200mx/2200mx Service Manual Edition 2 Manufacturing Part Number: HP Part No. C1104-90038 July 2003...
  • Page 2: Printing History

    Notice This document contains information that is protected by copyright. All rights are reserved. No part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of Hewlett-Packard Company. The information contained in this document is subject to change without notice.
  • Page 3: Typographical Conventions

    Typographical Conventions The following typographical conventions are used in this manual: Emphasis: Denotes important information. : Keys on the library. Keycap Computer Output: Information displayed in the display window and screen menu items that you can select. Warnings call attention to a procedure or practice that could WARNING result in personal injury if not correctly performed.
  • Page 4: In This Manual

    In This Manual This manual includes: Chapter 1 Product Information Chapter 2 Installation Chapter 3 Operation and Configuration Chapter 4 Troubleshooting and Diagnostics Chapter 5 Removal and Replacement Chapter 6 Theory of Operation Appendix A Safety and Regulatory Information Index...
  • Page 5: Table Of Contents

    Contents 1. Product Information Overview ....................1-2 Technical Specifications ............... 1-3 Environmental Specifications .............. 1-6 Clearance Requirements..............1-9 Weight-Bearing Requirements ............1-10 Location Requirements ..............1-10 Responsibilities ................1-10 2. Product Installation Jukebox Overview................. 2-2 Identifying Right-Side Panel Features ......... 2-2 Connecting SCSI Cables to the Jukebox ..........
  • Page 6 Contents Moving the Jukebox a Short Distance .......... 2-27 Shipping the Jukebox ..............2-28 3. Operation and Configuration Overview ....................3-2 Operating the Control Panel ............... 3-3 Using Selection Buttons............... 3-7 Understanding Display Window Messages......... 3-8 Top Level Menus ................3-8 Second Level Menus ..............
  • Page 7 Contents Recovery Procedures for Operation/Installation Errors ..... 4-5 Recovery Procedures for Specific Hardware Errors......4-13 Micro-Move Error Codes ..............4-26 Description of the Robotic Micro-Moves ..........4-30 Running an Internal Test..............4-43 Retrieving Log History ................. 4-48 Removal and Replacement Protecting Yourself and the Product............
  • Page 8 Contents Reassembly Notes ................5-46 Replacing the Vertical Motor Gear Box..........5-47 Reassembly Notes ................5-51 Replacing the Controller PCA ............. 5-53 Replacing the Power Distribution PCA..........5-55 Replacing a SCSI Interface PCA ............5-57 Reassembly Notes ................5-58 Replacing the Vertical-Path-Clear PCA ..........5-60 Checking the RFI Adjustments ............
  • Page 9 Contents Element Numbering ................6-19 Disk Storage Slot Numbering Sequence ........6-20 Limited Access Slots ..............6-22 Optical Drive Mechanism..............6-25 Controller..................6-25 Central Processing Unit (CPU) ............. 6-26 Gate Array ..................6-26 DSP (Digital Signal Processor)............6-26 Read / Write Channel Electronics ..........6-26 Loading Motor ................
  • Page 10 Contents Huolto ..................... A-7 English Translation of Finland Regulatory Information ....A-9 Japanese VCCI Statement..............A-10 Index TOC-x...
  • Page 11 Figures Figure 1-1. Clearance Requirements........1-10 Figure 2-1.
  • Page 12 Figures Figure 5-19. Removing the Translate Frame Capture Bracket....5-32 Figure 5-20. Rotating the Picker Assembly Out of the Translate Frame ..5-33 Figure 5-21.
  • Page 13 Figures Figure 6-8. Element and Slot Numbering....... . . 6-20 Figure 6-9.
  • Page 14 Figures TOC-xiv...
  • Page 15 Tables Table 1-1. Technical Specifications ........1-3 Table 1-2.
  • Page 16 Tables TOC-xvi...
  • Page 17: Product Information

    Product Information Chapter 1...
  • Page 18: Overview

    Product Information Overview Overview This chapter gives information on the following topics: • technical specifications • environmental specifications • replacing the control panel assembly • other documents that apply to this product Chapter 1...
  • Page 19: Technical Specifications

    Product Information Technical Specifications Technical Specifications Table 1-1 Technical Specifications Characteristics Description 5.2-GB Drive Characteristics Rotational speed (rpm) • 3000 (5.2 Gb media) • 3600 (650 Mb, 1.2 Gb, 2.6 Gb media) Average seek, typical (ms) 25.0 Average access time, typical (ms) Write transfer rate - max •...
  • Page 20 Product Information Technical Specifications Table 1-1 Technical Specifications Characteristics Description 9.1-Gb Drive Rotational speed (rpm) • 3000 (9.1 Gb media) • 3300 (5.2 Gb media) • 3600 ( 2.6 Gb media) Average seek, typical (ms) 25.0 Average access time, typical (ms) Write transfer rate - max •...
  • Page 21 Product Information Technical Specifications Table 1-1 Technical Specifications Characteristics Description Physical Characteristics Height (cm, inches) 180.8, 71.2 Width (cm, inches) 87.6, 34.5 Depth (cm, inches) 73.4, 28.9 Net weight (kg, lbs)) 226.3, 498.8 Packaged weight (kg, lbs) 301.6, 665 Chapter 1...
  • Page 22: Environmental Specifications

    Product Information Environmental Specifications Environmental Specifications Table 1-2 Environmental Specifications Characteristics Robotics Drive Media Temperature (o C) Operating 10 to 32 5 to 45 10 to 60 Non-operating w/o disk - 40 to 70 - 40 to 60 10 to 60 Max.
  • Page 23 Product Information Environmental Specifications Table 1-2 Environmental Specifications Characteristics Robotics Drive Media Shock , non-operating (g/ms) End use, handling, 150 / 3 25 / 11 760 mm half-sine drop to vinyl-cover ed concrete Transportation, 30 / 523 30 / 742 trapezoidal (g/cm/s) Vibration, 5-500 Hz range (g rms) Operating, maximum...
  • Page 24: Table 1-3 Power Requirements

    Product Information Environmental Specifications Table 1-2 Environmental Specifications Characteristics Robotics Drive Media Particulates (µg/cm3) <200 Electrostatic discharge (kV) Airgap (operating) 5 to 15 0 to 10 Airgap (non-operating 0 to 25 0 to 25 survival) Direct contact (operating) 0 to 4 0 to 4 Cooling requirements (CFM) (bidirection...
  • Page 25: Clearance Requirements

    Product Information Environmental Specifications Table 1-4 Reliability Mean time between 100,000 failure (MTBF) - robotics (power-on hours Mean time between 100,000 failure (MTBF) - drive (power-on hours) Mean time to repair (hours) Preventive maintenance none required* * for high-usage or zero downtime installations, see the Product Support Plan for special preventative...
  • Page 26: Weight-Bearing Requirements

    Product Information Environmental Specifications side should be accessible without the need to remove power from the jukebox. Position the jukebox so that the right side has service access, or allow adequate power and SCSI cable length to move the jukebox to a clear area.
  • Page 27 Product Information Environmental Specifications customer’s or reseller’s responsibility; HP will perform the site preparation/verification and/or installation on a time-and-materials basis. Chapter 1 1-11...
  • Page 28 Product Information Environmental Specifications 1-12 Chapter 1...
  • Page 29: Product Installation

    Product Installation Chapter 2...
  • Page 30: Jukebox Overview

    Product Installation Jukebox Overview Jukebox Overview Identifying Right-Side Panel Features Figure 2-1 Right-Side Panel Features — 10-Drive Jukebox Shown Chapter 2...
  • Page 31 Product Installation Jukebox Overview 1 Active bus Lit when the SCSI bus is active. There is an indicator indicator for each single-ended and each differential interface in the jukebox. 2 SCSI interface Selects either a single-ended or differential selection switch SCSI interface on the SCSI interface board.
  • Page 32 Product Installation Jukebox Overview be replaced after installation is complete. If the jukebox is reshipped, the screws should be reinserted. The screws are 6/32 X 0.437. Chapter 2...
  • Page 33: Connecting Scsi Cables To The Jukebox

    Product Installation Connecting SCSI Cables to the Jukebox Connecting SCSI Cables to the Jukebox In all configurations, the following cabling capabilities apply: Interface types Single-ended or differential SCSI, available selected by the interface selection switch on each interface card Number of interface One card in 4- and 6-drive models, cards available two cards in 10-drive models...
  • Page 34 Product Installation Connecting SCSI Cables to the Jukebox NOTE Use SCSI cables with thumbscrew connectors. Clip type cables may be used if you first remove the mounted thumbscrew studs with a flat blade screwdriver. If the thumbscrew studs are not removed, interference between the cable and the studs may result.
  • Page 35: Cabling Configurations

    Product Installation Cabling Configurations Cabling Configurations Refer to the list below for the page describing configurations: page Standard Configuration The only peripheral on a bus ... and the jukebox has 4 or 6 drives ... and the jukebox has 10 drives and uses two 2-10 host adapters ...
  • Page 36: Connecting A 4- Or 6-Drive Jukebox

    Product Installation Connecting a 4- or 6-Drive Jukebox Connecting a 4- or 6-Drive Jukebox CAUTION Make sure that all peripheral devices connected to the host computer have been properly shut down. If the host computer is connected to a network, check with the system administrator before switching off power. 1.
  • Page 37 Product Installation Connecting a 4- or 6-Drive Jukebox “B2” port on the differential interface. Route the cable through the slot at the bottom of the right side (“C”). 5. Plug a SCSI terminator into the unused SCSI port of interface type chosen (the example diagram shows the terminator at “B1”...
  • Page 38: Connecting A 10-Drive Jukebox As The Only Peripheral, Two Host Adapters, Basic Scsi Addressing

    Product Installation Connecting a 10-Drive Jukebox as the Only Peripheral, Two Host Adapters, Basic SCSI Addressing Connecting a 10-Drive Jukebox as the Only Peripheral, Two Host Adapters, Basic SCSI Addressing Make sure that all peripheral devices connected to the host computer CAUTION have been properly shut down.
  • Page 39 Product Installation Connecting a 10-Drive Jukebox as the Only Peripheral, Two Host Adapters, Basic SCSI Addressing 4. Connect cables between the two host adapters on the host computer and the two SCSI interfaces on the interface module. You can connect the two cables to two interfaces of the same type or different types (single-ended or differential).
  • Page 40: Connecting A 10-Drive Jukebox, One Host Adapter, Bus 1 And 2 Daisy-Chained, Lun Addressing

    Product Installation Connecting a 10-Drive Jukebox, One Host Adapter, Bus 1 and 2 Daisy-Chained, LUN Addressing Connecting a 10-Drive Jukebox, One Host Adapter, Bus 1 and 2 Daisy-Chained, LUN Addressing Make sure that all peripheral devices connected to the host computer CAUTION have been properly shut down.
  • Page 41 Product Installation Connecting a 10-Drive Jukebox, One Host Adapter, Bus 1 and 2 Daisy-Chained, LUN Addressing 4. Connect a short cable between the interface card chosen to the other Bus (the example diagram shows a cable (“B2”) between the second Bus 2 port over to a differential port on Bus 1).
  • Page 42: Connecting The Jukebox With Other Scsi Peripherals

    Product Installation Connecting the Jukebox With Other SCSI Peripherals Connecting the Jukebox With Other SCSI Peripherals Operating this jukebox with other peripherals on the same bus is NOTE supported, but not recommended. In most circumstances, the recommended configuration for this jukebox is as the only device on a SCSI bus.
  • Page 43: Connecting Power

    Product Installation Connecting Power Connecting Power 1. Ensure that the power switch on the jukebox is off (“8” on Figure 2-1). 2. Route the power cord through the strain relief clip (“4” on Figure 1-1) and close the clip snugly around the cord. 3.
  • Page 44: Configuring Write Verify

    Product Installation Configuring Write Verify Configuring Write Verify The write verify configuration ensures that data is written reliably to an optical disk. The jukebox ships with write verify enabled. Many software applications also default to this method of writing. Writing data on a magneto-optical disk requires two passes. The first pass erases the data in the sector to which data will be written.
  • Page 45: Installing The Wheel Chocks

    Product Installation Installing the Wheel Chocks Installing the Wheel Chocks This jukebox rolls easily and could cause injury or damage if WARNING allowed to move unintentionally. Four wheel chocks are provided to stabilize the jukebox in position. Install the wheel chocks after the jukebox is moved to its operating position and all cables are in place.
  • Page 46 Product Installation Installing the Wheel Chocks NOTE This is the last step in the physical installation. 2-18 Chapter 2...
  • Page 47: Default Scsi Ids In The Jukebox When Using Basic Scsi Addressing And When Using Lun Mode

    Product Installation Default SCSI IDs in the Jukebox When Using Basic SCSI Addressing and When Using LUN Mode Default SCSI IDs in the Jukebox When Using Basic SCSI Addressing and When Using LUN Mode Table 2-2 Default SCSI and LUN Settings in 4- and 6-Drive Jukeboxes BUS 1 LUN Mode OFF LUN Mode ON...
  • Page 48: Table 2-3 Default Scsi And Lun Settings In The 10-Drive Jukebox

    Product Installation Default SCSI IDs in the Jukebox When Using Basic SCSI Addressing and When Using LUN Mode Table 2-3 Default SCSI and LUN Settings in the 10-Drive Jukebox BUS 1 LUN Mode OFF LUN Mode ON JKBX ID DRV 1 ID DRV 2 ID DRV 3 ID DRV 4 ID...
  • Page 49: Table 2-4 Lun Mapping Of A 10-Drive Jukebox If "Drvs Bus 1" Id Is Changed To An Id Different Than The Jukebox Controller (Ids Used Are Examples)

    Product Installation Default SCSI IDs in the Jukebox When Using Basic SCSI Addressing and When Using LUN Mode Table 2-4 LUN Mapping of a 10-Drive Jukebox if “DRVs BUS 1” ID is Changed to an ID Different Than the Jukebox Controller (IDs used are examples) BUS 1 LUN Mode ON...
  • Page 50: Figure 2-6 Four Or Six Drives, One Host Adapter, Basic Scsi Addressing

    Product Installation Default SCSI IDs in the Jukebox When Using Basic SCSI Addressing and When Using LUN Mode Figure 2-6 Four or Six Drives, One Host Adapter, Basic SCSI Addressing Displays on the Control Panel Under CHOOSE LUN MODE * menu >> LUN MODE OFF Under SCSI IDs * >...
  • Page 51: Figure 2-7 10 Drives, Two Host Adapters, Basic Scsi Addressing

    Product Installation Default SCSI IDs in the Jukebox When Using Basic SCSI Addressing and When Using LUN Mode Figure 2-7 10 Drives, Two Host Adapters, Basic SCSI Addressing Displays on the Control Panel Under CHOOSE LUN MODE * menu >> LUN MODE OFF Under SCSI IDs * >...
  • Page 52: Figure 2-8 Ten Drives, One Host Adapter, Lun Addressing

    Product Installation Default SCSI IDs in the Jukebox When Using Basic SCSI Addressing and When Using LUN Mode Figure 2-8 Ten Drives, One Host Adapter, LUN Addressing, Controller/Drives Use Same IDs Displays on the Control Panel Under CHOOSE LUN MODE * menu >> LUN MODE ON Under SCSI IDs * >...
  • Page 53: Figure 2-9 Ten Drives, One Host Adapter, Lun Addressing, Controller/Drives Use Different Ids

    Product Installation Default SCSI IDs in the Jukebox When Using Basic SCSI Addressing and When Using LUN Mode Figure 2-9 Ten Drives, One Host Adapter, LUN Addressing, Controller/Drives Use Different IDs Displays on the Control Panel Under CHOOSE LUN MODE * menu >> LUN MODE ON Under SCSI IDs * >...
  • Page 54: Table 2-5 Possible Additional Scsi Addresses Available

    Product Installation Default SCSI IDs in the Jukebox When Using Basic SCSI Addressing and When Using LUN Mode Table 2-5 Possible Additional SCSI Addresses Available No. of LUN Mode OFF (basic LUN Mode ON - LUN Mode ON - Drives SCSI addressing) (drives and jukebox (drives and...
  • Page 55: Moving Or Shipping The Jukebox

    Product Installation Moving or Shipping the Jukebox Moving or Shipping the Jukebox Moving the Jukebox a Short Distance 1. If removing the disks from the jukebox, follow the jukebox application software instructions for unmounting, ejecting, and labeling disks to ensure that the jukebox can be brought online again easily. Ensure that there are no disks in the drives.
  • Page 56: Shipping The Jukebox

    Product Installation Moving or Shipping the Jukebox WARNING Push the jukebox only from the right or left sides. Pushing the jukebox from either the front or back sides could result in the jukebox tipping over if a wheel catches on an obstacle. 7.
  • Page 57 Product Installation Moving or Shipping the Jukebox the host system manuals for information about checking the SCSI bus status. 3. Switch the jukebox power off from the front panel. 4. Remove the right side lower access panel by pulling on the bottom of the panel and then lifting it off (Figure 2-1).
  • Page 58 Product Installation Moving or Shipping the Jukebox 2-30 Chapter 2...
  • Page 59: Operation And Configuration

    Operation and Configuration Chapter 3...
  • Page 60: Overview

    Operation and Configuration Overview Overview The following topics are included in this chapter. • operating the control panel • using the selection buttons • interpreting messages in the display window • loading optical disks into the jukebox • ejecting optical disks from the jukebox •...
  • Page 61: Operating The Control Panel

    Operation and Configuration Operating the Control Panel Operating the Control Panel The control panel enables manual control of all jukebox operations using six buttons and an LED display. The SCSI IDs of the jukebox and its optical drives can be set and changed, disks may be loaded and ejected, configurations can be monitored and changed, performance information can be viewed, internal tests can be run, and the jukebox can be secured from...
  • Page 62: Figure 3-1 The Jukebox Control Panel

    Operation and Configuration Operating the Control Panel Figure 3-1 The Jukebox Control Panel Chapter 3...
  • Page 63 Operation and Configuration Operating the Control Panel The numbers below refer to the numbers in Figure 3-1 on the previous page. 16-Character Displays status information and control panel Display information Selection Pressed to perform the following operations: buttons used to load disks into the jukebox mailslot LOAD used to eject disks from the jukebox EJECT...
  • Page 64: Figure 3-2 Jukebox Display Menu Tree

    Operation and Configuration Operating the Control Panel Figure 3-2 Jukebox Display Menu Tree Chapter 3...
  • Page 65: Using Selection Buttons

    Operation and Configuration Using Selection Buttons Using Selection Buttons Use the , and buttons to select LOAD EJECT NEXT PREV CANCEL ENTER tasks. When you push these buttons, the message in the display window changes. See the next section for a list of messages. Each time you push the button, a task choice appears.
  • Page 66: Understanding Display Window Messages

    Operation and Configuration Understanding Display Window Messages Understanding Display Window Messages The display window shows the operations you may select. Instructions for selecting or changing choices follows the explanation of the messages. Top Level Menus The jukebox is ready for operation. READY ADMIN * Select to access second-level choices.
  • Page 67 Operation and Configuration Understanding Display Window Messages NOTE When a menu selection flashes, press to choose that selection, or ENTER press to display other choices that available in that part of PREV NEXT the menu. You can display the selections listed in boxes below the shaded choices in “Jukebox Display Menu Tree”...
  • Page 68: Loading A Disk

    Operation and Configuration Loading a Disk Loading a Disk Start with READY, LOAD * or EJECT * in the display. 1. Press on the jukebox control panel. (If none of these messages LOAD displays, press until READY displays.) CANCEL Figure 3-3 Loading a Disk 2.
  • Page 69 Operation and Configuration Loading a Disk 5. Press to return to the READY state. CANCEL Chapter 3 3-11...
  • Page 70: Ejecting A Disk

    Operation and Configuration Ejecting a Disk Ejecting a Disk Start with READY, LOAD * or EJECT * in the display. 1. Press on the jukebox control panel. EJECT 2. EJECT SLOT # displays. (“#” is flashing and the number of the first storage slot in the jukebox that contains an optical disk.) 3.
  • Page 71: Entering The Administration Menu Password

    Operation and Configuration Entering the Administration Menu Password Entering the Administration Menu Password READY > ADMIN * > PSWD 000 000 000 A numeric password is required to access choices in the ADMIN * menu (see Figure 3-2). A three-part password of 000-000-000 was set at the factory.
  • Page 72: Changing The Administration Menu Password

    Operation and Configuration Changing the Administration Menu Password Changing the Administration Menu Password READY > ADMIN * > PSWD 000 000 000 >CONFIG * NOTE The following procedure is normally a customer operation. 1. Follow the steps on the previous page to enter the password (or the default, factory-set password 000 000 000).
  • Page 73 Operation and Configuration Changing the Administration Menu Password to the jukebox. 8. Turn the jukebox OFF, then ON to save the password to the jukebox flash ROM. Chapter 3 3-15...
  • Page 74: Setting The Scsi Ids

    Operation and Configuration Setting the SCSI IDs Setting the SCSI IDs Tables showing default SCSI IDs for basic SCSI addressing and LUN addressing are in Chapter 2, “Installation.” Setting the LUN Mode READY > ADMIN * > SCSI ID’S * > CHOOSE LUN MODE * NOTE LUN mode can only be configured if the host system and jukebox application software support the use of LUNs.
  • Page 75: Changing The Current Scsi Ids

    Operation and Configuration Setting the SCSI IDs 1. Press until ADMIN * displays, and then press NEXT ENTER 2. Enter the administration password. You may have to coordinate with the system administrator to enter the password. 3. Press until SCSI ID’S displays, and then press NEXT ENTER 4.
  • Page 76 Operation and Configuration Setting the SCSI IDs BUS 1 * displays. If you want to change the IDs on Bus 1, press ENTER If you want to change the IDs on Bus 2, press until BUS 2 * NEXT displays and then press ENTER If the jukebox configuration uses basic SCSI addressing (LUN mode OFF):...
  • Page 77 Operation and Configuration Setting the SCSI IDs cause a CONFLICT message. 6. Press until the desired ID displays and then press NEXT PREV ENTER If the jukebox is set to LUN MODE ON, go to Step 8. Only one ID can be changed and the ID automatically updates when you press ENTER 7.
  • Page 78: Setting An Operating Configuration

    Operation and Configuration Setting an Operating Configuration Setting an Operating Configuration READY > ADMIN * > CONFIG * Configurations customize the way the jukebox operates. Start with READY in the display. 1. Press until ADMIN * displays. NEXT 2. Enter the administration password. You may have to coordinate with the system administrator to enter the password.
  • Page 79 Operation and Configuration Setting an Operating Configuration jukebox flash ROM. Configurations are described in the following table. Table 3-1 Configuration Choices Configuration Description Name Toggles between ON and OFF. If set to ON, the RECOVERY jukebox attempts to recover from errors. If set ON/OFF to OFF, the jukebox immediately stops moving if an error condition occurs.
  • Page 80: Table 3-1 Configuration Choices

    Operation and Configuration Setting an Operating Configuration Table 3-1 Configuration Choices Configuration Description Name Toggles between ON and OFF. If set to ON, SCSI SCSI LOG states are tracked and saved to a log. If set to ON/OFF OFF, SCSI states are not tracked or saved. The default configuration is OFF and should remain OFF during normal operation.
  • Page 81 Operation and Configuration Setting an Operating Configuration Table 3-1 Configuration Choices Configuration Description Name Toggles between ON and OFF. If set to ON, write WRITE VERIFY verify is forced. When set to OFF, the drives ON/OFF may write verify or not, depending on how they are manually configured or how they are configured by the jukebox application software.
  • Page 82 Operation and Configuration Setting an Operating Configuration 3-24 Chapter 3...
  • Page 83: Troubleshooting And Diagnostics

    Troubleshooting and Diagnostics Chapter 4...
  • Page 84: Overview

    Troubleshooting and Diagnostics Overview Overview This chapter gives information in the following topics: • troubleshooting using the control panel • recovery procedures for operating/installation errors • recovery procedures for specific hardware errors • micro-move error codes • description of robotic micro-moves •...
  • Page 85: Troubleshooting Using The Control Panel

    Troubleshooting and Diagnostics Troubleshooting Using the Control Panel Troubleshooting Using the Control Panel When there are errors in robotic movements, use these approaches to get information and to run exerciser tests: • Troubleshooting Using the Control Panel and Observation - used when there is a hard error.
  • Page 86: Figure 4-1 Suspect Frus

    Troubleshooting and Diagnostics Troubleshooting Using the Control Panel Figure 4-1 Suspect FRUs How Suspect FRUs Are Evaluated Similar to treating symptoms rather than the real problem, the suspect FRUs given by the FRU isolation procedure may actually mask the root cause of the problem.
  • Page 87: Recovery Procedures For Operation/Installation Errors

    Troubleshooting and Diagnostics Recovery Procedures for Operation/Installation Errors Recovery Procedures for Operation/Installation Errors CAUTION Do not cycle power until you are sure the system SCSI bus is inactive and will remain inactive. Removing power while the bus is active can cause data loss and/or indeterminate bus states.
  • Page 88 Troubleshooting and Diagnostics Recovery Procedures for Operation/Installation Errors Table 4-1 Troubleshooting Problem What to do Host computer power Usually you will not have to intervene unless fails or is interrupted, the customer’s jukebox application specifies but the jukebox power some action. remains on.
  • Page 89 Troubleshooting and Diagnostics Recovery Procedures for Operation/Installation Errors Table 4-1 Troubleshooting Problem What to do • Ensure that only one SCSI device type DEVICE FAILED displays. (single-ended OR differential) exists on the SCSI bus. Hardware Error #61 (External SCSI cables) •...
  • Page 90 Troubleshooting and Diagnostics Recovery Procedures for Operation/Installation Errors Table 4-1 Troubleshooting Problem What to do No display messages. • Ensure that the power cord is connected. • Ensure that the power switch is on. • Ensure that at least one drive fan is plugged into each interposer PCA (if eight- or ten-drive jukebox).
  • Page 91 Troubleshooting and Diagnostics Recovery Procedures for Operation/Installation Errors Table 4-1 Troubleshooting Problem What to do Disk inserted in the • Press . Insert the disk in the CANCEL mailslot but LOAD mailslot again. See “Loading an Optical ERROR or FAILED Disk into the Jukebox”...
  • Page 92 Troubleshooting and Diagnostics Recovery Procedures for Operation/Installation Errors Table 4-1 Troubleshooting Problem What to do Disk inserted in the The jukebox moved a disk into the slot you mailslot but DEST NOW chose before your load command executed. FULL displays •...
  • Page 93 Troubleshooting and Diagnostics Recovery Procedures for Operation/Installation Errors Table 4-1 Troubleshooting Problem What to do *Ensure that the SCSI bus is inactive before removing power to the jukebox. Removing power to a device on an active SCSI bus can cause data loss and/or problems with the SCSI interface.
  • Page 94 Troubleshooting and Diagnostics Recovery Procedures for Operation/Installation Errors Table 4-1 Troubleshooting Problem What to do Disk eject attempted A disk is in the mailslot. but MAILSLOT FULL • Remove the disk from the mailslot. displays. • Select EJECT *, select the slot you want the disk ejected from again, and eject the disk.
  • Page 95: Recovery Procedures For Specific Hardware Errors

    Troubleshooting and Diagnostics Recovery Procedures for Specific Hardware Errors Recovery Procedures for Specific Hardware Errors When a hardware failure occurs, a message displays on the control panel. If the failure occurs during the poweron sequence, DEVICE FAILED displays. If the failure occurs when loading a disk you may see LOAD ERROR, or FULL.
  • Page 96 Troubleshooting and Diagnostics Recovery Procedures for Specific Hardware Errors Table 4-2 Hardware Errors Verification/Recovery Error Code (hex) Verification/Recovery Procedures See error 01. SCSI chip error See error 01. Jukebox controller chip error ID configuration module failure. Occurs if: • A configuration module for another model of jukeboxes is installed •...
  • Page 97 Troubleshooting and Diagnostics Recovery Procedures for Specific Hardware Errors Table 4-2 Hardware Errors Verification/Recovery Error Code (hex) Verification/Recovery Procedures Cannot translate the picker and/or sense that it has moved. Translate motor error 1. Run FIND XLAT HOME test from the control panel.
  • Page 98 Troubleshooting and Diagnostics Recovery Procedures for Specific Hardware Errors Table 4-2 Hardware Errors Verification/Recovery Error Code (hex) Verification/Recovery Procedures Occurs when trying to sense a move of the carriage assembly. Vertical motor error 1. If the translate assembly moves -- and you get a failure -- that means that we’re not reading the encoder strip.
  • Page 99 Troubleshooting and Diagnostics Recovery Procedures for Specific Hardware Errors Table 4-2 Hardware Errors Verification/Recovery Error Code (hex) Verification/Recovery Procedures 1. Change the picker. Top thumb sensor 2. Change the umbilical cable. error 3. Change the controller PCA. 1. Change the picker. Bottom thumb sensor 2.
  • Page 100 Troubleshooting and Diagnostics Recovery Procedures for Specific Hardware Errors Table 4-2 Hardware Errors Verification/Recovery Error Code (hex) Verification/Recovery Procedures Vertical motion failed in the middle of a move or exchange Move to 1. Look at the micro-move error of the failure in the error log (under INFO *, and Hardware Error in the control panel display).
  • Page 101 Troubleshooting and Diagnostics Recovery Procedures for Specific Hardware Errors Table 4-2 Hardware Errors Verification/Recovery Error Code (hex) Verification/Recovery Procedures Failed extracting a cartridge from a slot. Get cartridge out 1. Look at the micro-move error of the failure in the error log (under INFO * and Hardware Error in the control panel display).
  • Page 102 Troubleshooting and Diagnostics Recovery Procedures for Specific Hardware Errors Table 4-2 Hardware Errors Verification/Recovery Error Code (hex) Verification/Recovery Procedures Failed inserting a cartridge into a drive. Put cartridge in a 1. Look at the micro-move error of the drive failure in the error log (under INFO * and Hardware Error in the control panel display).
  • Page 103 Troubleshooting and Diagnostics Recovery Procedures for Specific Hardware Errors Table 4-2 Hardware Errors Verification/Recovery Error Code (hex) Verification/Recovery Procedures 1. Cycle power to the jukebox to initiate a poweron test sequence. Put mailslot in 2. Check to see if mailslot rotation works. If the mailslot rotates in, change the picker.
  • Page 104 Troubleshooting and Diagnostics Recovery Procedures for Specific Hardware Errors Table 4-2 Hardware Errors Verification/Recovery Error Code (hex) Verification/Recovery Procedures This may appear when testing for a cartridge in the picker during an ISTAT. Test picker Replace the picker. 1. Check for loose cables Switch active picker 2.
  • Page 105 Troubleshooting and Diagnostics Recovery Procedures for Specific Hardware Errors Table 4-2 Hardware Errors Verification/Recovery Error Code (hex) Verification/Recovery Procedures Because a motor test is called before a “find vertical home” is attempted, the vertical Find vertical home motor is assumed to be at least minimally functional 1.
  • Page 106 Troubleshooting and Diagnostics Recovery Procedures for Specific Hardware Errors Table 4-2 Hardware Errors Verification/Recovery Error Code (hex) Verification/Recovery Procedures Change the picker. Finish switching the picker Change the picker. Wait plunge Vertical motion failed in the middle of a move or exchange. Wait vertical 1.
  • Page 107 Troubleshooting and Diagnostics Recovery Procedures for Specific Hardware Errors Table 4-2 Hardware Errors Verification/Recovery Error Code (hex) Verification/Recovery Procedures 1. Check cables between the controller PCA and the SCSI repeater PCA. Repeater Controller 2. Check the external cables. 3. Change repeater PCA. 4.
  • Page 108: Micro-Move Error Codes

    Troubleshooting and Diagnostics Micro-Move Error Codes Micro-Move Error Codes Table 4-3 Micro-Move Error Codes Micro-Move Description Error Code (hex) Vertical over voltage exceeded limit set by firmware Vertical over force exceeded limit set by firmware Vertical servo error Vertical time-out Vertical open path Vertical closed path Plunge over voltage exceeded limit set by firmware...
  • Page 109 Troubleshooting and Diagnostics Micro-Move Error Codes Table 4-3 Micro-Move Error Codes Micro-Move Description Error Code (hex) Translate over force exceeded limits set by firmware Translate servo error No load complete Unexpected load complete Unexpected cartridge in drive No cartridge in drive Drive put in accept failed Drive get out accept failed Drive eject failed...
  • Page 110 Troubleshooting and Diagnostics Micro-Move Error Codes Table 4-3 Micro-Move Error Codes Micro-Move Description Error Code (hex) Clear magazine path Mailslot put in saturate failed Mailslot get out saturate failed Mailslot put in accept failed Mailslot get out accept failed Measurement of mailslot depth failed Recovery did not clear vertical path Rotate mailslot in failed Rotate mailslot out failed...
  • Page 111 Troubleshooting and Diagnostics Micro-Move Error Codes Table 4-3 Micro-Move Error Codes Micro-Move Description Error Code (hex) Rotate in catch error (not used) Rotate in push out error (not used) Rotate in armed failed (not used) Did not detect hard stop on a rotate in Rotate in was too much distance Engaging the mailslot failed on a rotate out Disengaging the mailslot failed on a rotate out...
  • Page 112: Description Of The Robotic Micro-Moves

    Troubleshooting and Diagnostics Description of the Robotic Micro-Moves Description of the Robotic Micro-Moves Table 4-4 Micro-Move IDs and Expanded Descriptions Micro-Move Description ID (hex) Move picker transport up. Fast. Move picker transport down. Fast. Move picker transport up slowly, checking for resistance.
  • Page 113 Troubleshooting and Diagnostics Description of the Robotic Micro-Moves Table 4-4 Micro-Move IDs and Expanded Descriptions Micro-Move Description ID (hex) Move slowly to the flip clear area (determined in micro-moves 11 and 12). Used in the plunge find home sequence. Also used in power fail recovery to move the picker off of a cartridge that was between the picker and the magazines when the power failed and the picker settled.
  • Page 114 Troubleshooting and Diagnostics Description of the Robotic Micro-Moves Table 4-4 Micro-Move IDs and Expanded Descriptions Micro-Move Description ID (hex) Retract the plunge assembly on the picker all the way back and then flip the picker. Used to find “home” in the plunge axis. Second flip of the sequence.
  • Page 115 Troubleshooting and Diagnostics Description of the Robotic Micro-Moves Table 4-4 Micro-Move IDs and Expanded Descriptions Micro-Move Description ID (hex) First time “get” plunge into a drive. Slow. Feels for resistance to learn the distance to the cartridge when it is seated. Fast “put”...
  • Page 116 Troubleshooting and Diagnostics Description of the Robotic Micro-Moves Table 4-4 Micro-Move IDs and Expanded Descriptions Micro-Move Description ID (hex) Short plunge out to test for a cartridge in the picker. If a cartridge is in the picker, the path clear beam will be interrupted.
  • Page 117 Troubleshooting and Diagnostics Description of the Robotic Micro-Moves Table 4-4 Micro-Move IDs and Expanded Descriptions Micro-Move Description ID (hex) Retract picker fingers all the way back. Trips the mechanism that makes the opposite thumb “active.” Move picker plunge assembly forward, away from the full retracted position.
  • Page 118 Troubleshooting and Diagnostics Description of the Robotic Micro-Moves Table 4-4 Micro-Move IDs and Expanded Descriptions Micro-Move Description ID (hex) Second part of a two-step move to fully retract the picker plunge assembly. Continues movement of micro-move A5 and brings picker plunge assembly all the way back.
  • Page 119 Troubleshooting and Diagnostics Description of the Robotic Micro-Moves Table 4-4 Micro-Move IDs and Expanded Descriptions Micro-Move Description ID (hex) First of two moves to move the thumb to the magazine during an ISTAT when no cartridge is in the picker. Next move is micro-move B0. Second of two moves to move the thumb to the magazine during an ISTAT when no cartridge is in the picker.
  • Page 120 Troubleshooting and Diagnostics Description of the Robotic Micro-Moves Table 4-4 Micro-Move IDs and Expanded Descriptions Micro-Move Description ID (hex) Pull picker plunge assembly fully back to rearm a “put.” Enable the picker to replace the cartridge it picked up during an ISTAT. First of two moves that put a cartridge back into the magazine after the cartridge is detected during an...
  • Page 121 Troubleshooting and Diagnostics Description of the Robotic Micro-Moves Table 4-4 Micro-Move IDs and Expanded Descriptions Micro-Move Description ID (hex) Quickly retract the picker plunge assembly if an error occurred while inserting a cartridge into a drive. Retract picker plunge assembly to a point where the thumbs are released and go to an unsplayed position.
  • Page 122 Troubleshooting and Diagnostics Description of the Robotic Micro-Moves Table 4-4 Micro-Move IDs and Expanded Descriptions Micro-Move Description ID (hex) Retract picker to rearm position to splay the fingers. Used when an error in the drive acknowledge signal is seen and a drive eject will be done and the thumbs must be in the splayed position.
  • Page 123 Troubleshooting and Diagnostics Description of the Robotic Micro-Moves Table 4-4 Micro-Move IDs and Expanded Descriptions Micro-Move Description ID (hex) Short plunge during a mailslot “get”. Ducks under the mailslot rotation mechanism and positions the picker so it can move up all the way to the mailslot “get”...
  • Page 124 Troubleshooting and Diagnostics Description of the Robotic Micro-Moves Table 4-4 Micro-Move IDs and Expanded Descriptions Micro-Move Description ID (hex) First of two moves rotating the mailslot in. Quickly retract the picker plunge assembly, pulling the mailslot most of the way in. Followed by micro-move Plunge out to rotate the mailslot almost all the way out.
  • Page 125: Running An Internal Test

    Troubleshooting and Diagnostics Running an Internal Test Running an Internal Test READY > ADMIN * >TEST * Start with READY in the display. 1. Press until ADMIN * displays. NEXT 2. Enter the administration password. You may have to coordinate with the system administrator to enter the password.I 3.
  • Page 126 Troubleshooting and Diagnostics Running an Internal Test Table 4-5 Internal Tests Test Name Description INIT ELEM Physically scans the entire unit to determine STATUS which storage slots contain disks and if the drives contain disks. NOTE: This test appears as “ISTAT TEST” in all control panel error messages.
  • Page 127 Troubleshooting and Diagnostics Running an Internal Test Table 4-5 Internal Tests Test Name Description TRANSLATE Moves the disk transport mechanism from side TEST to side. No disks are required. FLIP TEST Makes a combination of moves with a PASS/FAIL result. Flips the disk transport mechanism at various locations.
  • Page 128 Troubleshooting and Diagnostics Running an Internal Test Table 4-5 Internal Tests Test Name Description EMPTY PICKER Do not run this test if the jukebox contains disks with customer data. Moves a disk from the disk transport mechanism to its home storage slot location if that location is known, otherwise the disk is placed into the first available empty storage slot.
  • Page 129 Troubleshooting and Diagnostics Running an Internal Test Table 4-5 Internal Tests Test Name Description STARWARS The display shows 0 0 0. Each “0" indicates one of the paths that the disk transport mechanism follows in front of each stack of optical disks. If the path is clear, a “0” displays;...
  • Page 130: Retrieving Log History

    Troubleshooting and Diagnostics Retrieving Log History Retrieving Log History READY > ADMIN * > INFO * Information stored in the jukebox operating logs is displayed by using * menu. INFO Start with READY in the display. 1. Press until ADMIN * displays. NEXT 2.
  • Page 131 Troubleshooting and Diagnostics Retrieving Log History Table 4-6 Information Logs Log Name Description Press to select the odometer logs JKBX ODOMETERS * ENTER described in the next five rows. Number of operation hours (time the power HOURS was on). Some of the time may be while in power reduction mode.
  • Page 132 Troubleshooting and Diagnostics Retrieving Log History Table 4-6 Information Logs Log Name Description Log of unrecoverable errors (commands that HARD ERROR * did not successfully complete). Returns either NO HARD ENTRIES or ENTRY #. There may be multiple hard error numbers. Press to view the log for the currently ENTER...
  • Page 133 Troubleshooting and Diagnostics Retrieving Log History Table 4-6 Information Logs Log Name Description *FRU 3 # Field replaceable unit third most likely to be at fault. MOTION <name> <name> indicates one of the following types of movements taking place in the jukebox at the time of the failure: •...
  • Page 134 Troubleshooting and Diagnostics Retrieving Log History Table 4-6 Information Logs Log Name Description Fourth jukebox micro-move for the original *MICROMOVE 4 # move command issued prior to the failure. *MICROMOVE 5 # Fifth jukebox micro-move for the original move command issued prior to the failure. *MICROMOVE 6 # Sixth jukebox micro-move for the original move command issued prior to the failure.
  • Page 135: Removal And Replacement

    Removal and Replacement Chapter 5...
  • Page 136: Protecting Yourself And The Product

    Removal and Replacement Protecting Yourself and the Product Protecting Yourself and the Product WARNING Do not disassemble the optical drive mechanism. The optical drive mechanism becomes a Class 3B laser device when disassembled. If the drive is disassembled, exposure to the invisible laser beam and hazardous invisible laser radiation could result in blindness.
  • Page 137: Service Access

    Removal and Replacement Service Access Service Access Disconnect the power cord before taking the jukebox apart to WARNING prevent possible electrical shock. Do not switch off power to the jukebox until you are sure the SCSI bus is CAUTION inactive. Switching off the jukebox when the SCSI bus is active can cause data loss and/or indeterminate bus states.
  • Page 138: Figure 5-1 Locations Of The Access Panels

    Removal and Replacement Service Access Figure 5-1 Locations of the Access Panels Chapter 5...
  • Page 139: Replacing An Optical Drive - Jukebox Offline

    Firmware for all models and options of this jukebox is available for download at: www.hp.com (select the “HP Services & Support” tab) 1. Remove the three right-side panels and the upper and lower RFI panels (see Figure 5-1).
  • Page 140: Figure 5-2 Removing The Cables And Screws

    Removal and Replacement Replacing an Optical Drive — Jukebox Offline Figure 5-2 Removing the Cables and Screws 4. Remove the four T-10 screws holding the top and bottom access plates on the drive enclosure (see #1 and #2 in Figure 5-3). Remove the plates.
  • Page 141: Figure 5-3 Unmounting A Drive From The Enclosure

    Removal and Replacement Replacing an Optical Drive — Jukebox Offline Figure 5-3 Unmounting a Drive From the Enclosure Figure 5-4 Removing Cables From a Drive Chapter 5...
  • Page 142: Figure 5-5 Disk Eject Hole

    Removal and Replacement Replacing an Optical Drive — Jukebox Offline 8. If there is a disk in the drive, use a disk eject tool to remove the disk from the drive. a. Insert the eject tool (or paper clip) into the disk eject access hole (see Figure 5-5 ).
  • Page 143 Removal and Replacement Replacing an Optical Drive — Jukebox Offline drive in the same orientation. 13. Insert the drive enclosure into the chassisand secure the enclosure with two T-20 screws (see #5 on Figure 5-2). 14. Connect all drive cables to the interposer PCA (see Figure 5-2). 15.
  • Page 144: Replacing An Optical Drive - Jukebox Online

    Firmware for all models and options of this jukebox is available for download at: www.hp.com (select the “HP Services & Support” tab) Figure 5-6 shows the online drive replacement decal mounted on the NOTE upper RFI panel. The decal illustrates the procedures described in the following steps and can be used as a reminder of the major steps of this procedure when you are on site..
  • Page 145: Figure 5-6 Online Drive Replacement

    Removal and Replacement Replacing an Optical Drive — Jukebox Online Figure 5-6 Online Drive Replacement Chapter 5 5-11...
  • Page 146 Removal and Replacement Replacing an Optical Drive — Jukebox Online 3. Remove the drive power cables from the interposer PCA for the failed drive and the other drive in the enclosure (#1 on Figure 5-1 shows the drive power cables). IMPORTANT The 5/12 V power supplies for the upper and lower interposer PCAs sense current draw for the drive enclosure fans.
  • Page 147: Figure 5-7 Removing The Cables And Screws

    Removal and Replacement Replacing an Optical Drive — Jukebox Online Figure 5-7 Removing the Cables and Screws 5. Remove the T-20 screws from each side of the drive enclosure. Remove the drive enclosure from the chassis (see #5 on Figure 5-7). WARNING The jukebox is active during an online replacement procedure —...
  • Page 148: Figure 5-8 Unmounting A Drive From The Enclosure

    Removal and Replacement Replacing an Optical Drive — Jukebox Online Figure 5-8 Unmounting a Drive From the Enclosure 7. Remove the four T-10 screws that hold the failed drive in the drive enclosure and slide the drive forward a small amount to give you room to remove the cables.
  • Page 149: Figure 5-9 Removing Cables From A Drive

    Removal and Replacement Replacing an Optical Drive — Jukebox Online 8. Remove the drive cables from the rear of the failed drive (see Figure 5-9). • #1 - drive power cables • #2 - SCSI cable • #3 - drive interface cables Figure 5-9 Removing Cables From a Drive 9.
  • Page 150: Figure 5-10 Disk Eject Hole

    Removal and Replacement Replacing an Optical Drive — Jukebox Online Figure 5-10 Disk Eject Hole IMPORTANT Note whether the “A” or “B” side faces up when you remove the disk. The disk must be inserted into the replacement drive with the same orientation.
  • Page 151 Removal and Replacement Replacing an Optical Drive — Jukebox Online 13. Apply power to the replacement drive from the control panel using the following sequence: a. Press NEXT or PREV as needed to display ADMIN * on the control panel. b.
  • Page 152 Removal and Replacement Replacing an Optical Drive — Jukebox Online the rear of the drive (see Figure 5-4). While placing the drive interface cable onto the drive, slip the plastic cable guide around the interface cable, remove the adhesive backing, and stick the guide to the rear of the drive as shown by #4 on Figure 5-4.
  • Page 153: Replacing A Power Supply

    Removal and Replacement Replacing a Power Supply Replacing a Power Supply 1. Remove the three right-side panels and the upper and lower RFI panels (see Figure 5-1). 2. Remove the cables from the power supply that you are replacing (see Figure 5-11).
  • Page 154: Figure 5-11 Cables And Mounting Screws On The Power Supplies

    Removal and Replacement Replacing a Power Supply Figure 5-11 Cables and Mounting Screws on the Power Supplies 5-20 Chapter 5...
  • Page 155: Replacing The Mailslot Assembly

    Removal and Replacement Replacing the Mailslot Assembly Replacing the Mailslot Assembly 1. Remove the three right-side panels and the upper and lower RFI panels (see Figure 5-1). 2. Ensure that the mailslot sensor cable is disconnected from the upper interposer PCA (see Figure 5-12). 3.
  • Page 156: Figure 5-12 Removing The Mailslot Assembly

    Removal and Replacement Replacing the Mailslot Assembly Figure 5-12 Removing the Mailslot Assembly 5-22 Chapter 5...
  • Page 157: Replacing The Control Panel Assembly

    Removal and Replacement Replacing the Control Panel Assembly Replacing the Control Panel Assembly 1. Remove the three left-side panels (see Figure 5-1). 2. Disconnect the control panel cable from the control panel (#1 arrow Figure 5-13).. 3. Remove the eight T-15 screws that mount the control panel to the front window.
  • Page 158: Replacing An Interposer Pca (Upper And/Or Lower)

    Removal and Replacement Replacing An Interposer PCA (Upper and/or Lower) Replacing An Interposer PCA (Upper and/or Lower) IF YOU ARE REPLACING AN UPPER INTERPOSER PCA, CHECK TO IMPORTANT SEE IF THERE IS A CONFIGURATION MODULE MOUNTED ON THE PCA (#9 ON Figure 5-14). IF A CONFIGURATION MODULE IS INSTALLED, TRANSFER THE MODULE TO THE REPLACEMENT PCA.
  • Page 159: Figure 5-14 Disconnecting Cables And Screws On The Interposer Pcas

    Removal and Replacement Replacing An Interposer PCA (Upper and/or Lower) • #10 - drive cables (SCSI, drive interface, drive power, drive fan power - see Figure 5-2) Figure 5-14 Disconnecting Cables and Screws on the Interposer PCAs 3. Remove the eight T-20 screws holding the PCA to the chassis (see arrows on Figure 5-14).
  • Page 160 Removal and Replacement Replacing An Interposer PCA (Upper and/or Lower) 4. Remove the PCA. 5-26 Chapter 5...
  • Page 161: Replacing The Picker

    Removal and Replacement Replacing the Picker Replacing the Picker 1. Remove the lower and middle right-side access panels (see Figure 5-1). Extra panels are removed in Figure 5-15 for parts visibility in this description. 2. Pull the tab on the end of the picker umbilical cable to disconnect the cable from the bottom of the picker (see the arrow on Figure 5-15).
  • Page 162: Figure 5-16 Releasing And Stowing The Picker Translate Cable

    Removal and Replacement Replacing the Picker up through the slotted hole (#2). b. Slide the cable into the pinch slot on the side of the picker (#3). Placing the cable in the pinch slot prevents the cable from unraveling from the central picker hub. Figure 5-16 Releasing and Stowing the Picker Translate Cable 5-28 Chapter 5...
  • Page 163 Removal and Replacement Replacing the Picker 4. Release the translate cable from the side of the translate frame nearest the rear of the jukebox (see Figure 5-16): a. Remove the spring and slotted plug that holds the translate cable (#4).The cable passes through a hole in the side of the frame and into a slotted plug with a tensioner spring.
  • Page 164: Figure 5-17 Holding The Translate Frame In Position

    Removal and Replacement Replacing the Picker Figure 5-17 Holding the Translate Frame in Position 6. Remove the T-10 sheet metal screw that holds the capture spring down (see Figure 5-18). 5-30 Chapter 5...
  • Page 165: Figure 5-18 Releasing The The Picker Capture Bracket

    Removal and Replacement Replacing the Picker Figure 5-18 Releasing the the Picker Capture Bracket 7. Remove the capture spring by pulling it up and out of the unit. 8. Rotate the capture bracket 90 degrees and pull the bracket down and out (see Figure 5-19).
  • Page 166: Figure 5-19 Removing The Translate Frame Capture Bracket

    Removal and Replacement Replacing the Picker Figure 5-19 Removing the Translate Frame Capture Bracket 9. Remove the tool you inserted into the rear of the vertical motor gear box and lower the translate frame and picker to the bottom of the jukebox.
  • Page 167: Figure 5-20 Rotating The Picker Assembly Out Of The Translate Frame

    Removal and Replacement Replacing the Picker Figure 5-20 Rotating the Picker Assembly Out of the Translate Frame Chapter 5 5-33...
  • Page 168: Removing/Replacing The Translate Frame (Including The Picker)

    Removal and Replacement Removing/Replacing the Translate Frame (Including the Picker) Removing/Replacing the Translate Frame (Including the Picker) 1. Remove the three left-side access panels (see Figure 5-1). 2. Remove the lower and middle right-side access panels. Raise the translate frame only by pulling on the vertical drive rope. The CAUTION frame can be twisted by pulling it by the sides.
  • Page 169: Figure 5-21 Raising The Translate Frame And Holding The Frame In Position

    Removal and Replacement Removing/Replacing the Translate Frame (Including the Picker) Figure 5-21 Raising the Translate Frame and Holding the Frame in Position Chapter 5 5-35...
  • Page 170: Figure 5-22 Releasing The Lower End Of The Vertical Encoder Strip

    Removal and Replacement Removing/Replacing the Translate Frame (Including the Picker) Figure 5-22 Releasing the Lower End of the Vertical Encoder Strip 4. Unhook the encoder strip and hang it out of the way (see Figure 5-22). Pull down on the bottom of the encoder strip to release the strip from its retaining peg.
  • Page 171: Figure 5-23 The Visual Locator Bracket

    Removal and Replacement Removing/Replacing the Translate Frame (Including the Picker) BE EASILY DAMAGED. 5. Remove the “visual locator” bracket on the (front) side of the picker translate frame (see Figure 5-23). Remove the T-20 screw holding the bracket and rotate the bracket off..
  • Page 172: Figure 5-24. Disconnecting The Vertical Umbilical Cable From The Translate Frame

    Removal and Replacement Removing/Replacing the Translate Frame (Including the Picker) 6. Disconnect the umbilical cable on the underside of the translate frame (see Figure 5-24. Figure 5-24 Disconnecting the Vertical Umbilical Cable From the Translate Frame 7. Remove the tool you inserted into vertical motor gear box and move the translate frame down to the bottom of the jukebox.
  • Page 173: Figure 5-25 Removing The Tensioners From The Translate Frame

    Removal and Replacement Removing/Replacing the Translate Frame (Including the Picker) 8. Remove the three rope tensioners from the frame (#1, #2, and #3 on Figure 5-25). a. Remove two T-25 long screws per tensioner. Start with the tensioner at the rear end of the frame (#1 on Figure 5-25). b.
  • Page 174: Reassembly Notes

    Removal and Replacement Removing/Replacing the Translate Frame (Including the Picker) CAUTION In the next step, ensure that the plastic rail guides are not damaged when the translate frame is removed. 9. Rotate the rear of the translate frame up and then remove the frame out to the side (see Figure 5-26).
  • Page 175 Removal and Replacement Removing/Replacing the Translate Frame (Including the Picker) 1. Place the frame back in the chassis . Let it rest on its support points. The rear of the frame rests on a ledge on the vertical motor. 2. Pull the tensioners down so that they are next to their mount points on the sides and rear of the translate frame.
  • Page 176: Removing/Replacing The Encoder Strip

    Removal and Replacement Removing/Replacing the Encoder Strip Removing/Replacing the Encoder Strip 1. Remove the three left-side and three rear access panels (see Figure 5-1). Raise the translate frame only by pulling on the vertical drive rope. The CAUTION frame can be twisted by pulling it by the sides. A twisted frame may cause various errors in operation.
  • Page 177 Removal and Replacement Removing/Replacing the Encoder Strip Releasing Both Ends of the Vertical Encoder Strip WARNING The edges of the vertical encoder are sharp. Be careful. CAUTION Handle the encoder strip with care and ONLY BY THE SOLID SIDE (see Figure 5-22).
  • Page 178: Reassembly Notes

    Removal and Replacement Removing/Replacing the Encoder Strip 4. Pull the lower end of the encoder strip down (#1 on Figure 3). The strip will come off its mounting peg. 5. Take the upper end of the encoder strip off the spring on the upper strip mount (see #2 on Figure 3).
  • Page 179: Replacing The Vertical Motion Motor

    Removal and Replacement Replacing the Vertical Motion Motor Replacing the Vertical Motion Motor 1. Remove the lower left-side access panel (see Figure 5-1). Extra panels are removed in Figure 5-27 for parts visibility in this description. 2. Disconnect the red and black power cables to the vertical motor (see Figure 5-27).
  • Page 180: Reassembly Notes

    Removal and Replacement Replacing the Vertical Motion Motor Figure 5-27 Cables and Mounting Screws on the Vertical Motion Motor Reassembly Notes When replacing the motor, use the orienting pegs on the motor to place the motor correctly on the gear box. 5-46 Chapter 5...
  • Page 181: Replacing The Vertical Motor Gear Box

    Removal and Replacement Replacing the Vertical Motor Gear Box Replacing the Vertical Motor Gear Box 1. Remove the three left-side access panels (see Figure 5-1). 2. Follow the steps in “Removing/Replacing the Translate Frame (Including the Picker)” to remove the picker and translate frame. 3.
  • Page 182: Figure 5-28 Opening The Tensioners To Relieve Cable Tension

    Removal and Replacement Replacing the Vertical Motor Gear Box Figure 5-28 Opening the Tensioners to Relieve Cable Tension To replace rope, make sure rounded-end To replace rope, make sure rounded-end is placed in recessed area and secured is placed in recessed area and secured under tab.
  • Page 183: Figure 5-29 Disconnecting The Rope Coupler

    Removal and Replacement Replacing the Vertical Motor Gear Box 5. Remove the drive rope from the rear tensioner. a. Unfasten the spring. b. Pull both ends of the rope out of the tensioner. 6. Remove the drive cable from the top pulleys (#3 on Figure 5-28). 7.
  • Page 184: Figure 5-30 Vertical Motor Gear Box Mounting Screw

    Removal and Replacement Replacing the Vertical Motor Gear Box NOTE The top and bottom ropes in the coupler are slave ropes. The center rope is the drive rope. 9. Remove the gear box by removing one T-25 screw from the base of the gear box.
  • Page 185: Reassembly Notes

    Removal and Replacement Replacing the Vertical Motor Gear Box Reassembly Notes When remounting the rear rope tensioner on the drive rope, position the tensioner so that the spring is on the right side. The position of the tensioner is shown in the enlarged tensioner in Figure 5-31. It is recommended that you mount and secure the tensioners on the translate frame in the order shown on Figure 5-31 Figure 5-31...
  • Page 186 Removal and Replacement Replacing the Vertical Motor Gear Box “Removing/Replacing the Translate Frame (Including the Picker)” on page 34. 5-52 Chapter 5...
  • Page 187: Replacing The Controller Pca

    Removal and Replacement Replacing the Controller PCA Replacing the Controller PCA 1. Remove the three right-side access panels and the lower and upper RFI panels (see Figure 5-1). 2. Remove all cables from the controller PCA (see Figure 5-32). • #1 - input power to the PCA •...
  • Page 188: Figure 5-32 Controller Pca Cables And Mounting Screws

    Removal and Replacement Replacing the Controller PCA Figure 5-32 Controller PCA Cables and Mounting Screws 5-54 Chapter 5...
  • Page 189: Replacing The Power Distribution Pca

    Removal and Replacement Replacing the Power Distribution PCA Replacing the Power Distribution PCA 1. Remove the lower right-side access panel (see Figure 5-1). 2. Remove the power cable and other power distribution cables from the PCA. See Figure 5-33. • #1 - 24 V input to the controller PCA •...
  • Page 190: Figure 5-33 Power Distribution Pca

    Removal and Replacement Replacing the Power Distribution PCA Figure 5-33 Power Distribution PCA 5-56 Chapter 5...
  • Page 191: Replacing A Scsi Interface Pca

    Removal and Replacement Replacing a SCSI Interface PCA Replacing a SCSI Interface PCA 1. Remove the lower right-side access panel (see Figure 5-1). 2. Remove the four T-20 screws that mount the interface enclosure. Remove the enclosure. Figure 5-34 Unmounting the SCSI Interface Module 3.
  • Page 192: Reassembly Notes

    Removal and Replacement Replacing a SCSI Interface PCA NOTE Depending on the model, one or two SCSI interface PCAs may be mounted in the module. Figure 5-35 Interface PCA Cabling (Figure Shows a Two-PCA Configuration) Reassembly Notes If you are replacing the PCA for Bus #2 (top PCA), transfer the jumper from the previous PCA and mount it as shown in Figure 5-36.
  • Page 193: Figure 5-36 Jumper Setting When Two Pcas Are In The Interface Module

    Removal and Replacement Replacing a SCSI Interface PCA Figure 5-36 Jumper Setting When Two PCAs Are In the Interface Module Chapter 5 5-59...
  • Page 194: Replacing The Vertical-Path-Clear Pca

    Removal and Replacement Replacing the Vertical-Path-Clear PCA Replacing the Vertical-Path-Clear PCA 1. Remove the lower rear access panel (see Figure 5-37). Extra panels are removed in Figure 5-37 for parts visibility in this description. 2. Remove the three T-20 screws that mount the PCA cover (#1 on Figure 5-37).
  • Page 195: Checking The Rfi Adjustments

    Removal and Replacement Checking the RFI Adjustments Checking the RFI Adjustments The following RFI adjustments must be maintained after servicing the NOTE jukebox. Depending on the service performed, these configurations may be altered. The purpose of this section is to remind you of the RFI adjustments that must remain in place.
  • Page 196: Figure 5-38 Rfi Adjustments

    Removal and Replacement Checking the RFI Adjustments Figure 5-38 RFI Adjustments 5-62 Chapter 5...
  • Page 197: Upgrading Firmware To The Current Revision Level

    Firmware for all models and options of this jukebox is available for download at: www.hp.com (select the “HP Services & Support” tab) Tools • T-10 and T-20 Torx® drivers Check the Firmware Revision Level 1.
  • Page 198: Download Firmware As Necessary

    Removal and Replacement Upgrading Firmware to the Current Revision Level drive). 6. Press NEXT or PREV to select other drives and press ENTER. 7. After viewing the revision level for all drives, press CANCEL 8. Determine if the jukebox and/or drives have the current firmware revision level.
  • Page 199: Table 5-1 Default Configuration Settings

    Removal and Replacement Upgrading Firmware to the Current Revision Level necessary. 5. Turn the jukebox on. Wait until the jukebox shows READY in the display. 6. Turn your PC tool on. 7. Follow your download utilities instructions to download the firmware needed (jukebox and/or drives).
  • Page 200 Removal and Replacement Upgrading Firmware to the Current Revision Level Table 5-1 Default Configuration Settings Configuration Default Value CONF 40 WRITE VERIFY LUN Mode SCSI Addresses (4- or robotics controller = 6 6-drive jukeboxes) drive 1 = 5 drive 2 = 4 drive 3 = 3 drive 4 = 2 drive 5 = 1 (if...
  • Page 201 Removal and Replacement Upgrading Firmware to the Current Revision Level Table 5-1 Default Configuration Settings Configuration Default Value Password 000-000-000 Chapter 5 5-67...
  • Page 202: Replaceable Parts

    Removal and Replacement Replaceable Parts Replaceable Parts NOTE The “x” in the part numbers listed in the following parts tables represents a number from “0” to “9” depending on the revision of the part. For example, if the part is newly released, the number will be “0”. The first time the part is revised, the number increments to “1”;...
  • Page 203 Removal and Replacement Replaceable Parts Table 5-3 Non-Exchange Assemblies Part Number Description No. or Diagra Locator C1150-60x08 SCSI interface PCA C1110-60x03 configuration module C1107-60x21 operator panel key pad assembly - purple keys C1109-60021 operator panel key pad assembly - black keys C1107-60x22 display PCA C1107-60x23...
  • Page 204 Removal and Replacement Replaceable Parts Table 5-3 Non-Exchange Assemblies Part Number Description No. or Diagra Locator C1107-60x39 encoder mount C1107-60x40 translate frame assembly C1107-60x41 vertical umbilical cable C1160-60x42 mount guide - slider C1107-60x43 translate umbilical cable C1107-60x44 vertical motor power cable C1107-60x46 SCSI cable stub (1 per 2 drives in enclosure)
  • Page 205 Removal and Replacement Replaceable Parts Table 5-3 Non-Exchange Assemblies Part Number Description No. or Diagra Locator C1107-60x60 lower SCSI cable C1107-60x61 upper SCSI cable C1107-60x63 drive interface cable (1 per 2 drives in enclosure) C1107-60x65 control panel cable C1107-60x66 interposer cable C1107-60x67 upper drives power cable C1107-60x68...
  • Page 206 Removal and Replacement Replaceable Parts Table 5-3 Non-Exchange Assemblies Part Number Description No. or Diagra Locator C1107-60x98 intf. access panel - flint grey C1109-60x98 intf. access panel - parchment white - strikes may be removed from the bottom of this panel to be used on new panel.
  • Page 207 Removal and Replacement Replaceable Parts Table 5-3 Non-Exchange Assemblies Part Number Description No. or Diagra Locator C1160-60x80 power switch cable C1192-84304 interface module label - 2 PCAs C1192-84307 interface module label - 1 PCA 1400-2124 clamp for vertical umbilical cable C1700-41202 vertical sensor bracket C1715-40531...
  • Page 208 Removal and Replacement Replaceable Parts Table 5-3 Non-Exchange Assemblies Part Number Description No. or Diagra Locator 4320-0448 wheel chocks 0515-2382 small, flat-head screw, T-10 head 0590-2251 sheet-metal u-shape nut 0624-0647 4 x 20 self-tapping screw, T-10 head 2220-0020 small, T-10 head machine screw 2360-0524 conehead screw, 6-32x.625SQ 2360-0541...
  • Page 209: Figure 5-39 Exploded View (1 Of 6)

    Removal and Replacement Replaceable Parts Figure 5-39 Exploded View (1 of 6) Chapter 5 5-75...
  • Page 210: Figure 5-40 Exploded View (2 Of 6)

    Removal and Replacement Replaceable Parts Figure 5-40 Exploded View (2 of 6) 5-76 Chapter 5...
  • Page 211: Figure 5-41 Exploded View (3 Of 6)

    Removal and Replacement Replaceable Parts Figure 5-41 Exploded View (3 of 6) Chapter 5 5-77...
  • Page 212: Figure 5-42 Exploded View (4 Of 6)

    Removal and Replacement Replaceable Parts Figure 5-42 Exploded View (4 of 6) 5-78 Chapter 5...
  • Page 213: Figure 5-43 Exploded View (5 Of 6)

    Removal and Replacement Replaceable Parts Figure 5-43 Exploded View (5 of 6) Chapter 5 5-79...
  • Page 214: Figure 5-44 Exploded View (6 Of 6)

    Removal and Replacement Replaceable Parts Figure 5-44 Exploded View (6 of 6) 5-80 Chapter 5...
  • Page 215: Figure 5-45 Pulley And Rope Diagram

    Removal and Replacement Replaceable Parts Figure 5-45 Pulley and Rope Diagram Chapter 5 5-81...
  • Page 216 Removal and Replacement Replaceable Parts 5-82 Chapter 5...
  • Page 217: Theory Of Operation

    Theory of Operation Chapter 6...
  • Page 218: Scsi Command Execution To Mechanics

    Theory of Operation SCSI Command Execution to Mechanics SCSI Command Execution to Mechanics The mechanism code of the jukebox accepts high-level SCSI commands from the interface, translates these commands into servo code for the jukebox, executes the command, and reports status. When a SCSI command is received, it is translated into a series of smaller submoves in the servo code of the jukebox and then executed.
  • Page 219 Theory of Operation SCSI Command Execution to Mechanics Examples of high-level SCSI-2 commands are: • Move Medium: move a cartridge from element A to element B. • Exchange Medium: move a cartridge from element B to element C and from element A to element B. •...
  • Page 220 Theory of Operation SCSI Command Execution to Mechanics speed. • Saturation move: same as a position move except that a high force is expected within a given distance; however, motion is halted if force exceeds a specified threshold. Position moves are used for high-speed, unobstructed movements of a known distance.
  • Page 221: The Robotics Controller Pca

    Theory of Operation The Robotics Controller PCA The Robotics Controller PCA The robotics controller PCA contains the following major components, which are illustrated in Figure 6-2 on page 6-7: • Microprocessor: The MICROPROCESSOR is a Motorola MC68EC000 running at 12.288 MHz. This microprocessor controls all processes on the controller PCA such as servos, SCSI interface, and commands to the control panel.
  • Page 222 Theory of Operation The Robotics Controller PCA capability when the unit is powered off. Chapter 6...
  • Page 223: Figure 6-2 Robotic Controller Pca

    Theory of Operation The Robotics Controller PCA • Front panel control and filament drive: The control panel drivers generate a vacuum filament display using a 7.5-volt supply tied to a 5-volt reference, which results in an excitation voltage of from two to three volts.
  • Page 224: Upper And Lower Interposer Pcas

    Theory of Operation Upper and Lower Interposer PCAs Upper and Lower Interposer PCAs The interposer PCA is an extension of the controller PCA. Figure 6-3 Upper Interposer PCA Block Diagram Chapter 6...
  • Page 225 Theory of Operation Upper and Lower Interposer PCAs (Use the top portion of the diagram for the following explanation.) The single, GPIO and power connection from the controller PCA is J4. Address decode and data buffering takes addresses from the controller PCA and sends the data to proper locations and takes received data and routes the data to the proper destination.
  • Page 226 Theory of Operation Upper and Lower Interposer PCAs except for two signals, Req and Ack.The Ack signal comes from the host computer, is buffered on the interposer PCA, and sent to each drive individually. Req signals come from the drives and are buffered into one signal going back to the host computer.
  • Page 227: Figure 6-4 Lower Interposer Pca Block Diagram

    Theory of Operation Upper and Lower Interposer PCAs Figure 6-4 Lower Interposer PCA Block Diagram The lower interposer PCA performs the same general functions of the upper interposer PCA for drives 5/6, 7/8 and 9/10. There are some functions that are not present on the lower PCA such as clear-path drivers, mailslot sensor input, front panel output, and a connection for a configuration module.
  • Page 228: Configuration Module

    Theory of Operation Configuration Module Configuration Module The configuration module is a “key” that enables activation of the full complement of slots in the jukebox. The module is plugged into a connector on the upper interposer PCA (see #9 on Figure 5-14). All jukeboxes are shipped with a full complement of slots installed.
  • Page 229: Power Supplies

    Theory of Operation Power Supplies Power Supplies There are two power supplies, both autoranging. • One supplies +5 volts at 15 amperes and +12 volts at 10 amperes, which powers the drives and the jukebox logic. • The other supply provides +24 volts and +42 at 4 amperes, which powers the vertical motion motor (+42 V) and the poweron sequence relay (+24 V).
  • Page 230: Scsi Interface Pca

    Theory of Operation SCSI Interface PCA SCSI Interface PCA The SCSI interface PCA has two major functions: • Logically connect the active host SCSI bus (single-ended or differential) to the internal single-ended SCSI device bus. • Operate in a LUN mapping mode. Internally, the jukebox has a single-ended SCSI bus.
  • Page 231: Figure 6-7 Scsi Interface Pca

    Theory of Operation SCSI Interface PCA Figure 6-7 SCSI Interface PCA The jukebox communicates to the PCA through a GPIO bus. The differential and single-ended connectors are on the top of the PCA and the single-ended bus connection to the jukebox is on the bottom. A slider switch between the two external connectors selects which type of input will be accepted.
  • Page 232 Theory of Operation SCSI Interface PCA the single-ended external [host] bus (default). The two large components on the PCA are the Field-Programmable Gate Array and the microprocessor. The microprocessor is an 80C52 that has flash-programmable memory on board. (There are no boot ROMs on this PCA).
  • Page 233: Logical Unit Number Mapping Capability

    Theory of Operation Logical Unit Number Mapping Capability Logical Unit Number Mapping Capability LUN means Logical Unit Number. The SCSI interface PCA enables connecting up to seven jukeboxes (theoretically) on a single SCSI bus. Also, the SCSI bus may be either single-ended or differential. Internally, the jukebox has a single-ended SCSI bus.
  • Page 234: Optical Cartridge Picker

    Theory of Operation Optical Cartridge Picker Optical Cartridge Picker A major performance parameter is the read-to-read time — the time between the reception of an “exchange” disks command to the time that reading starts on the new disk. This series of jukeboxes has a dual picker which can optimize exchange times, but taking advantage of this optimization depends on whether the application running the jukebox implements the “exchange”...
  • Page 235: Table 6-1 Element Numbering In The Jukebox

    Theory of Operation Element Numbering Element Numbering Element numbers designate any location that a disk can occupy in the jukebox. Table 6-1 Element Numbering in the Jukebox Element Name Element Number Optical drives 1 to 10 Reserved 11 to 15 Dual picker 16 and 17 Reserved...
  • Page 236: Element Numbering

    Theory of Operation Element Numbering Disk Storage Slot Numbering Sequence Figure 6-8 Element and Slot Numbering To improve access times, cartridge slot numbering starts close to the drives and expands out. The lower-numbered slots are close to the optical drives and the higher-numbered slots are farther away from the drives.
  • Page 237 Theory of Operation Element Numbering limited-access slots at the top. The sequence continues with 209 though 229 across the bottom — just above the limited-access slots on the bottom. Next, back up to the top to include slots 230 through 235. Finally, the numbering jumps down to the bottom to include the limited access slots 236 to 238.
  • Page 238: Limited Access Slots

    Theory of Operation Element Numbering Limited Access Slots Because of physical constraints, some physical slots can have either limited access or cannot be accessed at all. At the lower limit of picker transport travel, there are 3 slots, 1 in each stack, that can only be accessed by the lower picker.
  • Page 239: Figure 6-10 Limited Access Slots At The Top Of The Stacks

    Theory of Operation Element Numbering Figure 6-10 Limited Access Slots at the Top of the Stacks Figure 6-11 One-Finger Grab Recovery Areas at the Bottom of the Stacks Chapter 6 6-23...
  • Page 240: Figure 6-12 One-Finger Grab Recovery Areas At The Top Of The Stacks

    Theory of Operation Element Numbering Figure 6-12 One-Finger Grab Recovery Areas at the Top of the Stacks Warning decals next to the two top slots in the center and right-hand stacks remind you that you should never manually load disks in these slots.
  • Page 241: Optical Drive Mechanism

    Theory of Operation Optical Drive Mechanism Optical Drive Mechanism Figure 6-13 provides an overview of the optical drive mechanism. Figure 6-13 Optical Drive Functional Diagram Controller The controller is a highly-specialized integrated circuit that handles SCSI control, data buffering, and encode/decode. The data buffer function provides a buffer to match transfers to and from the host computer and the optical disk.
  • Page 242: Central Processing Unit (Cpu)

    Theory of Operation Optical Drive Mechanism decodes the various commands and messages on the SCSI bus and instructs the drive to take appropriate action. The encode/decode function encodes and decodes data for read and write transfers. During a write function, user data is sent via the SCSI bus. The encoder converts the parallel data into an encoded serial bit stream that includes all the format and error correction features required to meet the ANSI and ISO specifications.
  • Page 243: Bias Magnet

    Theory of Operation Optical Drive Mechanism the cartridge shuttle to raise and lower the cartridge within the loader housing. Bias Magnet The bias magnet subassembly sits on top of the cartridge shuttle and provides the correct polarity for erasing or writing data. Optical Head The optical head assembly contains both mechanical and electronic components and is a “split optics”...
  • Page 244: Errors

    Theory of Operation Errors Errors The various error thresholds are the basis for deciding whether or not to spare a sector. This could happen during the certification process (i.e. the slip sparing algorithm) or auto-reallocation during a SCSI Write command (i.e. the replacement sparing algorithm). These error thresholds are related to the format of a sector in the User Zone.
  • Page 245: Table 6-2 Error Thresholds

    Theory of Operation Errors Table 6-2 Error Thresholds Operation Sector IDs ECC Level Format Write Erase Verify Read (recovered) Read Chapter 6 6-29...
  • Page 246: The Scsi Bus And This Jukebox

    Theory of Operation The SCSI Bus and This Jukebox The SCSI Bus and This Jukebox This jukebox is a “fast and narrow” SCSI device with the capability to connect to either a narrow single-ended bus or a wide differential bus. In the diagram below, note that the single-ended (50-line) bus is brought directly onto the jukebox internal narrow bus.
  • Page 247: Adding Devices To The Bus

    Theory of Operation The SCSI Bus and This Jukebox Adding Devices to the Bus When considering adding other devices to the jukebox bus, consider the following: • Will adding a device onto a bus with this jukebox interfere or degrade the performance of the jukebox or the device that is added? •...
  • Page 248 Theory of Operation The SCSI Bus and This Jukebox Because a narrow device only has a 50-pin connector, it will not transmit the eight extra bits of data needed for the wide device on the end of the bus. Using only 50 lines also prevents the narrow device from passing along the IDs of devices at 8 or above.
  • Page 249 Theory of Operation The SCSI Bus and This Jukebox It is very important that the 68-pin to 50-pin cable is properly configured to assure that the eighteen truncated lines are properly terminated. Cable Lengths Observe SCSI cable maximum lengths; - 3 meters (9.8 feet) for the single-ended bus (remember, this is a fast device) - 25 meters (82 feet) for the differential bus.
  • Page 250 Theory of Operation The SCSI Bus and This Jukebox General • Do not connect a single-ended bus to a differential bus. Damage can occur. 6-34 Chapter 6...
  • Page 251 Index Numerics 16-character display declaration of conformity disks ejecting 3-12 loading 3-10 access panel display location display menu tree mounting screws display messages access panel locations active bus indicator activity light administration menu password ejecting disks 3-12 changing environmental specifications 3-14 entering 3-13...
  • Page 252 Index vertical motor gear box 5-47 vertical-path-clear PCA 5-60 mailslot required tools maximum cable length requirements menu tree location 1-10 micro-move error codes 4-26 power micro-move ID descriptions 4-30 moving the jukebox weight-bearing 2-27 1-10 responsibilities 1-10 retrieving log history 4-48 RFI adjustments 5-61...
  • Page 253 Index ADMIN * troubleshooting hardware errors 4-13 installation and operation listing of procedures using the control panel type styles in this book upgrading firmware 5-63 upper interposer PCA using the selection buttons Viewing 3-16 viewing the current SCSI IDs 3-16 wheel chocks 2-17 write verify...
  • Page 254 Index Index- 4...

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