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Medium Optical Disk (RW551/RW552) Library

4–8

EK–MOL80–SV. B01

The two types of diagnostics available for the jukebox are:

•

Offline Diagnostics - Hewlett-Packard offers a diagnostic program called
DOSDASS4 for use with the optical disk jukebox. These diagnostics can be
obtained from the Digital Customer Support Center at CXO. This PC-based
diagnostic program allows you to fully test the autochanger mechanism or the
optical drive mechanism.

•

Internal Diagnostics - These tests are run from the control panel and are under
the ADMIN selection. These tests are fully explained later in this chapter.

Offline Diagnostics

A diagnostic utility called DOSDASS4 is available to authorized service
organizations from Hewlett-Packard for accessing the jukebox through the SCSI
bus or from the Digital Customer Support Center at CXO. DOSDASS4 fully
exercises the standalone multifunction optical drives and the autochanger.

CAUTION

DO NOT CYCLE POWER during any
troubleshooting 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. Check
the host system reference manuals for information
on checking the status of the SCSI bus.

Operation and Installation Error information is listed in Table 4–2.

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Содержание RW551

Страница 1: ...Medium Optical Disk Library RW551 RW552 Service Manual EK MOL80 SV B01 Digital Equipment Corporation Maynard Massachusetts...

Страница 2: ...copied only in accordance with the terms of such license No responsibility is assumed for the use or reliability of software or equipment that is not supplied by Digital Equipment Corporation or its a...

Страница 3: ...Configuration and Operation Connections to the RW551 RW552 Jukebox 3 1 Configuring and Operating the Jukebox 3 3 Connecting an Uninterruptable Power Supply UPS 3 3 Connecting the SCSI Cable to the Ju...

Страница 4: ...14 Running an Internal Test 4 34 Optical Disk Cleaning 4 38 Using the Eject Tool to Remove a Disk from the Drive 4 40 5 Removal and Replacement Field Replaceable Assemblies 5 2 ESD Precautions 5 2 Too...

Страница 5: ...r PCA 6 4 Interposer PCA 6 6 Power Supplies 6 7 SCSI Repeater Converter LUN PCA 6 7 Picker 6 10 Single Picker Mode 6 10 Dual Picker Mode 6 10 Two Move Exchange 6 10 Dual Picker Exchange 6 11 Quick Exc...

Страница 6: ...t Sparing Algorithm 6 34 Error Thresholds 6 34 Diagnostic Strategy 6 35 Internal Autochanger Diagnostics 6 35 The SCSI Interface 6 35 Single Ended and Differential SCSI Interfaces 6 36 SCSI Command Se...

Страница 7: ...Cable 5 17 5 18 Picker Translate Cable 5 18 5 19 Picker Translate Cable stowed 5 19 5 20 Stopping Vertical Motor Gear Box Motion 5 19 5 21 Picker Capture Bracket Mounting 5 20 5 22 Picker Capture Bra...

Страница 8: ...ter PCA Power Distribution PCA Below 5 38 5 48 SCSI PCA Jumpers 5 39 5 49 Jukebox Exploded View 5 47 5 50 Jukebox Power Harness 5 49 5 51 Jukebox Pulley and Rope Diagram 5 50 6 1 SCSI Command Translat...

Страница 9: ...dware Errors and Recovery Procedures 4 14 4 4 Micro Move IDs 4 25 4 5 Available Internal Tests for the RW551 and RW552 4 34 5 1 List of Field Replaceable Units 5 42 5 2 Exchange Parts 5 44 5 3 Non Exc...

Страница 10: ...uide revision levels release dates and reasons for the revisions It also describes how the changes to affected pages are marked in the guide Revision Level Date Summary of Changes EK MOL80 SV A01 Dece...

Страница 11: ...res and specifications Chapter 2 Environmental Installation PM Describes disk jukebox environmental requirements and installation procedures Chapter 3 Product Configuration and Operation Provides info...

Страница 12: ...ich may be beneficial to the reader Typographical Conventions The following typographical conventions are used in this manual Italic Font Italic font designates the title of a document and statements...

Страница 13: ...ould result in personal in jury if not correctly performed Do not proceed beyond this symbol until you fully understand and meet the indicated conditions Reader Comments Digital is committed to provid...

Страница 14: ...ns A matrix of environment specifications provide parameters for several sub assemblies Figure 1 1 RW551 RW552 Jukebox Product Features The SCSI connect version of the RW551 RW552 optical disk jukebox...

Страница 15: ...the drive mechanism and the autochanger con troller PCA a digital signal processor DSP based servo built into the drive mechanism for faster seek times and lower error rates split optics resulting in...

Страница 16: ...ormat CCW 4X 2 3 Gbyte 512 bytes sector 2 6 Gbyte 1 024 bytes sector Meets ISO IEC 10089A 11560 and 14517 standards for Continuous Composite CC format DIGITAL Operating Systems only support 512 bytes...

Страница 17: ...ves and capacity for up to 32 rewritable or MO Worm disks One blank disk included Single ended and differential SCSI interfaces RW552 ZF Model 80Fx 1160H Optical jukebox with four Model OPT 728 multif...

Страница 18: ...less than 1 block in error per 10 14 bytes Buffer size 1 Mbyte Read Buffering readaheads Write Buffering immediate reporting write reordering Interface SCSI 2 single ended Differential asynchronous sy...

Страница 19: ...30 g 742 cm s Vibration 5 500 Hz range Operating max accel 0 21 g rms 0 3 g rms 0 21 g rms Non operating random 2 g rms 3 g rms Non operating swept sine 0 5 g 0 peak 1 g 0 peak Altitude Operating 4 5...

Страница 20: ...an time to repair 30 minutes Preventive maintenance none required Product Certifications Safety EN 60950 IEC 950 UL 1950 listed or recognized CSA 950 TUV approved to VDE 0805 05 90 Electromagnetic emi...

Страница 21: ...ISO IEC N828 ANSI X3 212 1994 2X 1 2 Gbyte 512 bytes sector 1 3 Gbyte Meets ECMA 184 standard for Continuous Composite CC format Rewritable 594 byte 512 bytes sector 650 Mbyte 1024 bytes sector Meets...

Страница 22: ...esigned to operate with an ambient air temperature range of 10 to 40 C 50 to 104 F with a rate of temperature change not to exceed 10 C 18 F per hour Primary Power External Ground The power outlet mus...

Страница 23: ...doors and walkways stacks of supplies that collect dust and smoke filled rooms Responsibilities Customer site preparation verification and installation are the customer s or reseller s responsibility...

Страница 24: ...npacking and Taking the Jukebox Off the Pallet Using a floor jack move the jukebox to the chosen location Remove the outer packaging by following the instructions printed on the carton Tools Required...

Страница 25: ...wooden blocks located between the pallet and the bottom of the jukebox cabinet 4 Using a 9 16 inch wrench remove the four hold down bolts that clamp the cabinet to the pallet The bolt heads are on th...

Страница 26: ...figuration and Operation This chapter provides information about the operational control on the jukebox and how to use those controls to configure and operate the jukebox Connections to the RW551 RW55...

Страница 27: ...Medium Optical Disk RW551 RW552 Library 3 2 EK MOL80 SV B01 Figure 3 2 Rear Panel SCSI Connect...

Страница 28: ...connect the power cord 5 SCSI interface switch Used to select either the single ended or differential SCSI ports 6 Cosmetic side panels Panels that cover the ends of the jukebox 7 Active bus indicato...

Страница 29: ...ION If the UPS does not provide a communication link between the UPS and the computer system an operator will have to shut down the computer system stop any new writes before the UPS battery power is...

Страница 30: ...evice connected to your computer with a SCSI cable as one of a number of peripheral devices connected to the computer with a SCSI cable Connecting Power 1 Check to make sure that the standby power swi...

Страница 31: ...est completes approximately 1 5 minutes the control panel displays READY NOTE A sequence of tests are run when the jukebox is first switched on The READY status on the control panel indicates that the...

Страница 32: ...elect tasks you want the jukebox to perform When you push any of these buttons a message appears in the display window See the next section for a list of messages You can hold down the and buttons to...

Страница 33: ...mbers LUNs Also the initial access point for choosing LUN mode ONLINE REPAIR select to view and change power setting and status of the optical drives used during online drive replacement NOTE An indic...

Страница 34: ...Chapter 3 Product Configuration and Operation EK MOL80 SV B01 3 9 Figure 3 4 Control Panel Menu Tree...

Страница 35: ...s the current SCSI ID for the jukebox or drives when LUN mode is ON Press NEXT or PREV to scroll through the current SCSI addresse and LUN settings 4 Press CANCEL to exit VIEW ID S To change SCSI IDs...

Страница 36: ...do not allow different device types to be under one SCSI address If this is the case the DRVs ID SCSI address must be set to a different address then that of JKBX ID Table 3 4 Shows how LUNs are mapp...

Страница 37: ...ebox or drives when LUN mode is ON Press NEXT until the setting you wish to change is displayed and then press ENTER 4 The current SCSI address setting flashes Press NEXT or PREV until the address you...

Страница 38: ...re sure the SCSI bus is inactive Removing power from a SCSI peripheral when the bus is active can result in data loss and or indeterminate bus states Check the host system manuals for information abou...

Страница 39: ...he next two parts of the security code 3 Press NEXT until SCSI IDS displays and then press ENTER 4 JB CNTRL ID displays JB CNTRL stands for jukebox controller and is the SCSI ID that is currently set...

Страница 40: ...this step to enter the next two parts of the security code 3 TEST displays Press NEXT until CONFIG displays and then press ENTER The last configuration option that was in the display will show 4 Press...

Страница 41: ...press ENTER to select this option and then press NEXT or PREV to toggle between ON or OFF Press ENTER to select your choice IS SET displays This configuration should not be used by the customer STARWA...

Страница 42: ...r be loaded or ejected If the configuration is set to OFF the jukebox operates in its default state which allows disks to be loaded and ejected To change the configuration press ENTER to select this o...

Страница 43: ...F40 ON OFF Toggles between ON and OFF Select Inquiry Mode ON selects standard inquiry mode OFF selects downloadable inquiry mode Default is OFF to operate with Digital Systems CONF41 ON OFF Toggles be...

Страница 44: ...ENTER and then repeat steps 1 and 2 until you have loaded all the disks you want to into the jukebox 4 Press CANCEL to return to the READY state NOTES If you get a LOAD ERROR message one of the follo...

Страница 45: ...jukebox that contains an optical disk alternately display 3 If you want to select the storage slot number in the display press ENTER If you want to choose a different storage slot press NEXT or PREV...

Страница 46: ...ected Refer to the host system documentation or the application software documentation for instructions for unreserving a disk If the configuration Prevent Media Removal has been set RESERVED displays...

Страница 47: ...r the next two parts of the security code 3 TEST displays Press NEXT until CONFIG displays and then press ENTER The last configuration in the display will show 4 Press NEXT or PREV until NEW PASSWORD...

Страница 48: ...could result in damage to the drive mechanism Do not remove power to the jukebox until you are sure that the SCSI bus is inactive Switching off power or unplugging the power cord when the SCSI bus is...

Страница 49: ...an Optical Disk Cartridge in Chapter 2 of the jukebox user s guide CAUTION Failure to eject a disk from an optical drive prior to moving the jukebox could result in damage to the drive mechanism Do n...

Страница 50: ...and the device address is set you are ready to prepare the host system to access the jukebox To determine if the host you are connecting to supports this device and for further installation informatio...

Страница 51: ...ncountered was a hard error or whether it was a soft intermittent recoverable error Troubleshooting Using the Control Panel and Observation This method is usually used in situations where you have a h...

Страница 52: ...Suspect FRUs NOTE This test sequence returns possible failed FRUs only if there has been a hard failure The test sequence will NOT find an failure from which a recovery was made Evaluating Results of...

Страница 53: ...om the control panel and watch it closely Reading the descriptions in the Micro move table in this chapter will also help you understand the composition of its movements Retrieving Performance Informa...

Страница 54: ...the total number of moves and move attempts by the disk translate mechanism FLIPS Displays total number of disk translate mechanism flips XLATES Displays the total number of horizontal moves between o...

Страница 55: ...he available logs are described in the following rows Step through the log by pressing NEXT or PREV ODOMETER The number of moves HARDWARE ERR This error number indicates the cause of the failure FRU 1...

Страница 56: ...depends on whether the error encountered was a hard error or whether it was a soft or intermittent error Troubleshooting Using the Control Panel and Observation This method is usually used in situatio...

Страница 57: ...ddition refer to the following tables also contained in this guide Request Sense Command Tables These tables show error information and information about the state of the autochanger after an error ha...

Страница 58: ...s are fully explained later in this chapter Offline Diagnostics A diagnostic utility called DOSDASS4 is available to authorized service organizations from Hewlett Packard for accessing the jukebox thr...

Страница 59: ...g the drive address Changed drive address but new address is not recognized After changing an address the autochanger power and or the host system power may need to be cycled for the new address to be...

Страница 60: ...ure the power cord connections are tight Check that the power switch is ON next to the mailslot Check to make sure the power outlet is operating Replace the power cord with a known good one Replace th...

Страница 61: ...nger stays on After the host reboots file system check any write mounted surfaces Both the host system and autochanger power fail After the host reboots file system check any write mounted surfaces Se...

Страница 62: ...sk was initialized Check that the disk file system was mounted correctly Refer to the Optical Disk Cleaning section in this chapter Removing disks Disk inserted in the mailslot but LOADERROR or MISLOA...

Страница 63: ...his table If it is critical that the disk be removed from the drive before power can be restored to the drive see Using the Eject Tool to Remove a Disk from the Drive in this chapter Running a test St...

Страница 64: ...rrors in other components For example if any portion of the electronics becomes intermittent or if friction increases on a part different components of the autochanger may appear to fail at varied poi...

Страница 65: ...A Change drive low priority drive just returns a ground signal so would appear fine unless the cable was not carrying signal 0B Drive 2 connection error See error OA 0C Drive 3 connection error See er...

Страница 66: ...ip If the translate assembly doesn t move it probably is the motor leads motor or 24 volt power supply Make sure the encoder strip is inside sensor Make sure the motor leads are connected to the verti...

Страница 67: ...f the STARWARS test can not verify the beam change the interposer PCA Change the controller PCA receivers are mounted on this PCA 2A Left beam error See error 29 apply to left beam 2B Top thumb sensor...

Страница 68: ...p is inside sensor Make sure the motor leads are connected to the vertical motor Check that the cable from the sensor is connected through the translate from to the umbilical cable for the picker 24 v...

Страница 69: ...e failure in the error log under INFO and Hardware Error in the control panel display Remove rear panel and run the Wellness Test Drive I O test and Exercise Mechanics test Note where the problem occu...

Страница 70: ...it indicates a picker error change the picker 45 Put mailslot in Change the picker Change the mailslot 46 Get mailslot out Change the picker Change the mailslot 47 Test mailslot Change the picker Chan...

Страница 71: ...el If the picker does not move at all check the connections on the umbilical cable If the connections are good and the picker still does not move change the umbilical cable If the picker moves a littl...

Страница 72: ...ing Check that the path is clear Exercise and visually check the operation of the vertical motor 51 Clear magazine path Check that the path from the picker to the magazine is clear Check that the vert...

Страница 73: ...ess Make sure the encoder strip is inside sensor Make sure the motor leads are connected to the vertical motor Check that the cable from the sensor is connected through the translate from to the umbil...

Страница 74: ...rface chosen Check that single ended differential slide switch is selecting desired interface Change external SCSI cable Change SCSI repeater PCA Change controller PCA 80 LAN timeout Power cycle the j...

Страница 75: ...ve slowly up far enough to establish that there is enough room to flip the picker Used in the plunge find home sequence 12 Move slowly down far enough to establish that there is enough room to flip th...

Страница 76: ...unge toward magazine to get cartridge 6C First time plunge into magazine first get Feels for resistance to learn the distance to the cartridge when it is seated 6D Retraction to pull the cartridge out...

Страница 77: ...forward to get cartridge from the drive Thumbs wrap over the ears on the cartridge 80 Retract a small amount o take up the slack between the picker thumbs and the cartridge ears 81 Retract plunge asse...

Страница 78: ...two steps second step is micro move 90 90 Retract picker fingers all the way back Trips the mechanism that makes the opposite thumb active 91 Move picker plunge assembly forward away from the full ret...

Страница 79: ...used to make the top picker the active picker during a picker recalibration AC Move picker plunge assembly forward to normal position after a active picker has been change by micro moves AA and AB On...

Страница 80: ...e vertical picker path Used during an ISTAT no cartridge in the picker and no cartridge was contacted in the first magazine B6 Pull picker plunge assembly fully back to rearm a put Enable the picker t...

Страница 81: ...2 Insert cartridge into a drive just past the shutters Distance has not been learned Part one of a two stage move Used in the sequence to return a cartridge into a drive after an emergency eject durin...

Страница 82: ...ge CE Plunge out to clear the mailslot path Used in error recovery CF Retract picker plunge assembly in an attempt to clear the mailslot path Used in error recovery DO Short plunge to push the cartrid...

Страница 83: ...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 E3 E2 Plunge out to rotate the mailslot almost al...

Страница 84: ...plays and then press ENTER Repeat this step to enter the next two parts of the security code 3 TEST displays Press ENTER 4 Press NEXT until the name of the test you wish to run displays and then press...

Страница 85: ...a randomly chosen drive with a random flip It then moves the cartridge back to its original slot with its original orientation This test displays FAIL if there are no disks in the jukebox or if all st...

Страница 86: ...then moves it back down The last time the disk transport mechanism is moved down the number of encoder counts are verified Returns PASS FAIL No cartridges are required CAUTION Use extreme caution when...

Страница 87: ...be run at half speed Use this configuration for diagnostic purposes only PLUNGE 1 4 SPD Allows the mechanics to be run at quarter speed Use this configuration for diagnostic purposes only STARWARS The...

Страница 88: ...epresentatives only TRANSLATE SENSOR Reports ON or OFF after looking at the translate sensor Optical Disk Cleaning All Jukeboxes CAUTION Data may be lost as a result of scratches introduced during opt...

Страница 89: ...raffic areas Do not leave a disk in the drive for extended periods of time if possible Do not use the jukebox in dirty environments NOTE SCSI connectjukeboxes If the problem appeared as loss of perfor...

Страница 90: ...ive s shutter open Disks may be cleaned with the Optical Disk Cleaning Kit C1700 88800 This kit contains swabs and alcohol cleaning instructions and a special cartridge holder that keeps the sliding s...

Страница 91: ...rive mechanism and then do the following steps to remove a disk from the drive 1 Disconnect power to the drive if you have not done so already 2 Insert the eject tool into the small round hole in the...

Страница 92: ...end...

Страница 93: ...Replacing a Cooling Fan 5 16 Replacing the Picker 5 17 Removing Replacing the Transport Frame 5 21 Removing Replacing the Encoder Strip 5 27 Replacing the Vertical Motion Motor 5 28 Replacing the Vert...

Страница 94: ...s The optical disk jukebox contains very sensitive electrical components It is EXTREMELY IMPORTANT that you follow the proper procedures for pre venting ESD Electrostatic Discharge Use wrist grounding...

Страница 95: ...il you are sure the SCSI bus is inactive Switching off the jukebox when the SCSI bus is active can cause data loss and or indeterminate bus states For all jukeboxes When servicing the jukebox be sure...

Страница 96: ...h off the power to the jukebox by placing the power standby switch to OFF 0 on the right side 2 Unplug the power cord from the power source 3 Remove the T 20 screw that holds the bottom edge of the pa...

Страница 97: ...0 SV B01 5 5 Rear Access Panel Figure 5 2 Rear Access Panel 1 Remove the seven T 20 screws around the outer edge of the panel 2 Remove the single screw underneath the bottom of the panel 3 Rotate the...

Страница 98: ...the four T 20 mounting screws from the panel Two screws are lo cated under the bottom front edge of each panel and two screws are located on the rear of each panel 2 Remove one T 20 sheet metal screw...

Страница 99: ...e Control Display Before Removing the Panel For the front right panel control panel side NOTE Before removing the front right panel the control panel must be positioned correctly to clear the chassis...

Страница 100: ...Control Panel 3 Remove the T 20 screw that holds the control panel access plate The right side of the baffle is held by a tab fitting into a slot in the mailslot housing To remove rotate the left sid...

Страница 101: ...Chapter 5 Removal and Replacement EK MOL80 SV B01 5 9 Figure 5 6 Disconnecting the Control Panel Cable Figure 5 7 Removing the Front Right Panel...

Страница 102: ...lift up the front right panel Spread the bottom front and rear a bit while lifting up and tilting off Reassembly When replacing the front right panel be sure to put the control panel ribbon ca ble un...

Страница 103: ...l of the jukebox 1 Remove the rear access panel Figure 5 8 Power Supplies 2 Remove the power plug from the bottom of the supply 3 Disconnect the cables from the top of the supply The 24V power supply...

Страница 104: ...1 Follow the steps at the beginning of this chapter to remove the right access panel rear access panel and front right panel 2 Ensure that the Mailslot sensor cable is disconnected from the interpose...

Страница 105: ...s panel and front right panel 2 Place front right panel upside down on table Figure 5 11 Control Panel Mounting Screws 3 Remove the four T 10 sheet metal screws from the control PCA retaining ring Thi...

Страница 106: ...and SCSI cables from the rear of all drives Figure 5 12 Optical Drives With Cables Connected 3 Remove the RFI panel covering the drives Remove the two T 20 screws from the top of the RFI panel Tip th...

Страница 107: ...Chapter 5 Removal and Replacement EK MOL80 SV B01 5 15 Figure 5 13 Optical drives With Cables Disconnected Figure 5 14 Optical Drive Mounting 5 Slide the drive out along its positioning tabs...

Страница 108: ...the bottom of the jukebox chassis Work the panel into place and secure with two T 20 screws Replacing the Interposer PCA 1 Follow the steps in the service access procedure at the beginning of this ch...

Страница 109: ...ker 1 Follow the steps in the service access procedure at the beginning of this chapter to remove the right access panel rear access panel and front right panel 2 Unplug the picker umbilical cable To...

Страница 110: ...d and place it in the pinch slot on the side of the frame Plac ing the cable in the pinch slot keeps the cable from unraveling from the cen tral picker hub Figure 5 18 Picker Translate Cable 4 Release...

Страница 111: ...80 SV B01 5 19 Figure 5 19 Picker Translate Cable stowed Figure 5 20 Stopping Vertical Motor Gear Box Motion 5 Remove the T 10 sheet metal screw that holds that holds the capture spring down 6 Remove...

Страница 112: ...its underside Grip the rear of the frame pull it up to the desired position and then insert a screwdriver into the gear box securing hole to prevent the frame from de scending 8 Release the picker fr...

Страница 113: ...anslate frame and picker to the bottom of the jukebox 11 Tilt up the rear end of the picker and slide it out towards the rear Removing Replacing the Translate Frame 1 Follow the steps in the service a...

Страница 114: ...RW552 Library 5 22 EK MOL80 SV B01 Figure 5 24 Translate Frame Raised For Easier Access 3 Raise the translate frame up to the top of the jukebox and secure with a screwdriver placed in the vertical mo...

Страница 115: ...ing Vertical Motor Gear Box Motion WARNING Take care when handling the encoder strip Its edges are sharp 4 Unhook the encoder strip Pull down on the encoder strip to remove the strip from its retainin...

Страница 116: ...e 5 26 Encoder Strip Mounting Peg 5 Hang the encoder strip out of the way 6 Remove the visual locator bracket on the front side of the picker translate frame as follows a Remove the two T 20 screws ho...

Страница 117: ...the underside of the frame Do this before moving the translate frame down to the bottom of the jukebox in the next step 8 Remove whatever tool has been inserted in the vertical motor gear box se curin...

Страница 118: ...oner at the rear end of the frame b Each rope tensioner has two positioning pegs which position and seat each rope tensioner properly on the translate frame Work all three rope tensioners free of the...

Страница 119: ...he sensor slot on the sensor PCA mounted on the side of the picker frame The strip may be moved off its mounting peg while you are replacing the translate frame in the chassis Removing Replacing the E...

Страница 120: ...K MOL80 SV B01 Figure 5 31 Encoder Strip Mounting Screw Figure 5 32 Top Mount Of Encoder Strip Replacing the Vertical Motion Motor 1 Follow the steps in the service access procedure at the beginning o...

Страница 121: ...or Note the orientation of the motor and its cable connections with respect to the gear box for reassembly Figure 5 33 Vertical Motion Motor 3 Remove two T 15 motor mounting screws on the gear box Rea...

Страница 122: ...access panel rear access panel and front right panel 2 Follow the steps in Removing the Picker and Removing the Picker Translate Frame to remove the picker and translate frame 3 Grip the rope tensione...

Страница 123: ...the metal securing tab seated in the plastic sec tion The metal section will swing out and off pivoting pegs on the plastic section 5 Take the drive rope off the top two pulleys 6 Unhook the rope ten...

Страница 124: ...Medium Optical Disk RW551 RW552 Library 5 32 EK MOL80 SV B01 Figure 5 36 Taking The Drive Rope Off the Top Pulleys Figure 5 37 Disconnecting the Drive Rope From a Tensioner...

Страница 125: ...3 9 Remove the first two ropes from the rope coupler The center second rope is the drive rope It is not necessary to remove the rope coupler completely Figure 5 38 Two Ends of the Slave Rope in the Te...

Страница 126: ...e one T 25 screw from the base of the gear box Tip the gear box forward and lift it out When gear box is removed note the locating and securing slots on the base of the gear box opposite the screw hol...

Страница 127: ...ope ends to the rope tensioner before hanging the drive rope over the top two pulleys Before applying tension by setting the rope tensioners insert the ropes into the rope coupler and attach the coupl...

Страница 128: ...e 5 43 Controller PCA Cover On 3 Disconnect the following cables from the controller PCA SCSI cable Power cable Motor encoder and power cables Picker cable 4 Remove the seven T 20 screws from the cont...

Страница 129: ...ce section Re initializing the Jukebox Controller PCA After Service Replacing the Internal SCSI Cable 1 Follow the steps in the service access procedure at the beginning of this chapter to remove the...

Страница 130: ...ace Power Distribution Assembly 1 Follow the steps in the service access procedure at the beginning of this chapter to remove the left side lower access panel 2 Remove the two T 20 screws holding the...

Страница 131: ...Chapter 5 Removal and Replacement EK MOL80 SV B01 5 39 Figure 5 48 SCSI PCA Jumpers 3 Disconnect the cables to the PCA 4 Remove the six T 15 screws holding the PCA...

Страница 132: ...ism This is done by selecting and executing both the Set Defaults and Clear Odometers configurations on the control panel Also the jukebox should be power cycled after setting these configurations so...

Страница 133: ...lear Recovery Error Log Reset the password to 0 0 0 Variables set by Clear Odometers Reset the move odometer to zero Reset the flip odometer to zero Reset the translate odometer to zero Reset the mail...

Страница 134: ...0 150 29 33417 01 5063 2784 Svr Ctrl PWA half Y Y 286 00 100 29 33418 01 5063 2785 Svr Ctrl PWA full Y Y 2795 95 100 see next 29 33418 01 5063 2786 Svr Ctrl PWA full repaired Y Y N A 100 286 00 29 334...

Страница 135: ...Magazine N N 18 20 N A 29 32799 01 C1160 60030 Encoder Strip N N 23 40 N A 29 32801 01 C1160 60034 Slave Rope N N 28 60 N A 29 32802 01 C1160 60035 Xlate Rope N N 13 33 N A 29 32803 01 C1160 60036 Co...

Страница 136: ...ly released the number will be 0 The first time the part is revised the number in crements to 1 the second time the part is re vised the number increments to 2 and so on If you are unsure of the curre...

Страница 137: ...e Picker SCSI 29 C1100 60129 Mailslot Assembly SCSI 30 C1160 60x30 Encoder Strip SCSI 31 C1160 60x26 Magazine pair 6 slots SCSI 32 C1160 60x28 Power Supply 200W 5 12V SCSI 33 C1160 60x33 Power Supply...

Страница 138: ...h FRU 61 may be seen in diagnostic display on the control panel the cable does not exist in this jukebox 62 C1170 60x62 Drive I O 4X Cable 4X drive ver sions SCSI 63 AIU Cable although FRU 63 may be s...

Страница 139: ...Chapter 5 Removal and Replacement EK MOL80 SV B01 5 47 Figure 5 49 Jukebox Exploded View 1 of 2...

Страница 140: ...Medium Optical Disk RW551 RW552 Library 5 48 EK MOL80 SV B01 Figure 5 49 Jukebox Exploded View 2 of 2...

Страница 141: ...Chapter 5 Removal and Replacement EK MOL80 SV B01 5 49 Figure 5 50 Jukebox Power Harness...

Страница 142: ...Medium Optical Disk RW551 RW552 Library 5 50 EK MOL80 SV B01 Figure 5 51 Jukebox Pulley and Rope Diagram...

Страница 143: ...screws 50 pin m to m C2908A 0 5 m 1 6 ft SCSI cable high density with thumb screws 50 pin to high density with thumb screws 50 pin m to m C2955A 1 5 m 4 9 ft SCSI cable high density with thumb screws...

Страница 144: ...lowing aspects of the robotics of the Medium Optical Disk Library RW551 and RW552 jukeboxes Autochanger Command Execution and Mechanics Autochanger Controller PCA Interposer PCA Power Supply Optical D...

Страница 145: ...ge from element A to element B Seek position the transport at a target element Test test for the presence of a cartridge at a target element Actuate mailslot rotate the mailslot assembly to perform I...

Страница 146: ...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...

Страница 147: ...anger Controller PCA Block Diagram 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 c...

Страница 148: ...or decrement counters on the chip The ASIC also provides pulse width modulation PWM output signals to drive the motor circuitry All SCSI signals are handled by the NCR 53C80 chip under control of the...

Страница 149: ...nnections for four drives are installed on all jukeboxes whether four drives are installed or not Installing cables in this way prepares two drive units for possible upgrade to four drive units Two se...

Страница 150: ...er supply comes up and is good AND if the power standby switch on the right side of the jukebox is in the ON position the output of the 24 volt power supply is enabled The 24 volt output closes the re...

Страница 151: ...ogether allows the PCA to provide TERMPOWER to the differential external host SCSI bus default J5 enable disable internal bus TERMPOWER PINS 1 and 2 jumpered together allows the PCA to provide TERMPOW...

Страница 152: ...es a problem with the PCA In repeater mode the SCSI PCA looks transparent on the bus and passes all SCSI transactions through The interface type may also be converted from single ended to differential...

Страница 153: ...two disk cartridges at once Its two thumbs can be addressed in two ways One way is to address the picker in single picker mode and the second way is to address the picker in dual picker mode Single P...

Страница 154: ...ridge in the drive The following is a detailed description of the two move exchange 1 a Move to the drive destl b Eject the cartridge from the drive spin down included 2 Grab the cartridge from the dr...

Страница 155: ...st complete before Step 7 begins 1 a Move to the source slot b Eject the cartridge from the drive spindown 2 Grab the cartridge source from the slot 3 Move to the drive destl 4 Grab the cartridge from...

Страница 156: ...r be returned to its home slot or retained in the picker for the next exchange Below is a detailed description of this type of exchange 1 Move to the source slot 2 Grab the cartridge from slot 3 Move...

Страница 157: ...Controller PCA The controller PCA is a microprocessor based collection of digital electronics that handles functions performed by a SCSI controller a data buffer and a formatter sequencer SCSI Contro...

Страница 158: ...the format and error correction features required to meet the ANSI and ISO specifications During reads the decoder converts the serial data stream which includes format and error correction features i...

Страница 159: ...tem that allow the cartridge shuttle to raise and lower the cartridge within the loader housing The bias magnet subassembly sits on top of the cartridge shuttle and provides the correct polarity for e...

Страница 160: ...yte and 2 6 GByte optical disks The target s role is to manage the 130 mm multifunctional drive and disk as an optical memory device through its SCSI interface These optical drive supports 130 mm rewr...

Страница 161: ...firmware which 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 tran...

Страница 162: ...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 slip optics de...

Страница 163: ...ion the first number applies to a 1 024 bytes sector disk The value of 512 bytes sector disk is written inside parentheses just after the value for the 1 024 bytes sector disk Optical Disk Layout The...

Страница 164: ...DS Primary Defect List PDL Secondary Defect List SDL 2 Slipping Area 650 Mbyte disks only 3 User Area consisting of g User Groups of n sectors each g Spare Groups of m sectors each 650 Mbyte Disk and...

Страница 165: ...s There are 34 User Spare groups for 1 024 bytes sector media and 30 groups for 512 bytes sector media The 2 6 Gbyte media establishes groups BEFORE accounting for slip spares Refer to the following s...

Страница 166: ...Chapter 6 Theory of Operation EK MOL80 SV B01 6 23 Figure 6 10 User Zone Layout for 1 3 Gbyte Media g 1...

Страница 167: ...Medium Optical Disk RW551 RW552 Library 6 24 EK MOL80 SV B01 Figure 6 11 User Zone Layout for 1 3 Gbyte g 16...

Страница 168: ...Chapter 6 Theory of Operation EK MOL80 SV B01 6 25 Figure 6 12 User Zone Layout for 2 6 Gbyte Media 1 024 bytes sector...

Страница 169: ...Medium Optical Disk RW551 RW552 Library 6 26 EK MOL80 SV B01 Figure 6 13 User Zone Layout for 2 3 Gbyte Media 512 bytes sector...

Страница 170: ...37281 119 Data Band 7 38981 119 Data Band 8 40664 136 Data Band 9 42364 136 Data Band 10 44064 136 Data Band 11 45747 153 Data Band 12 47447 153 Data Band 13 49147 153 Data Band 14 50830 170 Data Ban...

Страница 171: ...nd 3 4050 5399 5100 6999 Data Band 4 5400 6749 7000 8999 Data Band 5 6750 8099 9000 11099 Data Band 6 8100 9449 11100 13299 Data Band 7 9450 10799 13300 15599 Data Band 8 10800 12149 15600 17999 Data...

Страница 172: ...11 30199 32648 2450 41650 508623 580272 12 32674 35078 2405 40885 550273 591157 13 35104 37463 2360 40120 591158 631277 14 37489 39803 2315 39355 631278 670632 15 39829 42098 2270 38590 670633 709222...

Страница 173: ...8245 294778 3 9580 12637 3058 94798 294779 389576 4 12660 15661 3002 93062 389577 482638 5 15684 18629 2946 91326 482639 573964 6 18652 21541 2890 89590 573965 663554 7 21564 24397 2834 87854 663555 7...

Страница 174: ...452 58501 2050 63550 1735535 1799084 22 58524 60517 1994 61814 1799085 1860898 23 60540 62477 1938 60078 1860899 1920976 24 62500 64381 1882 58342 1920977 1979318 25 64404 66229 1826 56606 1979319 203...

Страница 175: ...73 5 66 116 modulation method PPM PPM PWM bit density ID bpi 24 9K 29 5K 48 7K 49 1K bit density OD bpi 12 5K 29 5K 50 9K 50 9K sectors per logical track 17 31 17 31 17 31 number of user bands 1 16 3...

Страница 176: ...byte media allows for a maximum of 2048 spare sectors total from the PDL and the SDL while the ECMA standard for 1 3 GByte allows for 2057 or 1077 depending on the sector size of 1024 or 512 bytes per...

Страница 177: ...taking into account both physical blocks 20 and 30 being slipped past This would result in physical block address 42 being the translation for logical block address 40 This is not a truly accurate exa...

Страница 178: ...ment pair only occurs on 650 Mbyte media For 1 3 GByte media a new defect replacement pair is added thus creating a chain of defect replacement pointers Error Thresholds Although not directly related...

Страница 179: ...isers provided by the jukebox provide diagnostic capabilities that are not available in the standard set of SCSI autochanger commands The tests are run from the control panel Offline Diagnostics DOSDA...

Страница 180: ...repeated Because the single ended interface is repeated onto the internal bus maximum external bus length remains at the maximum SCSI single ended bus length of 6 meters Even though the differential...

Страница 181: ...tled Small Computer System Interface 2 SCSI 2 revision 10H which is dated September 1991 Copies of this publication can be obtained by writing to Global Engineering Documents 2805 McGaw Irvine CA 9271...

Страница 182: ...Part Number 3m 9 8 ft Single ended SCSI in terface cable high density 50 pin to low density 50 pin m to m BN23G 03 3m 9 8 ft Differential SCSI inter face cable high density 50 pin to 68 pin m to m BN...

Страница 183: ...ese parts directly to Hewlett Packard Related Documents Table A 2 Related Documentation Item Part Number Optical Disk Jukebox Family User s Guide Shipped with each unit EK RW5XX UG Optical Storage Des...

Страница 184: ...lett Packard SMO facility in California The title of this manual is Offline Diagnostics for Hewlett Packard Optical Products and the Part Number is 5960 7626 Extra copies may be available from Digital...

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