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Mitel SX-200 DIGITAL Pabx Engineering Information Manual

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    							Troubleshooting 
    CONTENTS PAGE 
    l.GENERAL ........................................ l-l 
    Introduction ..................................... l-l 
    Reason for Issue ................................. 
    l-l 
    2. PRIMARY TROUBLESHOOTING PROCEDURES ............. 2-l 
    General ......................................... 2-l 
    Procedure 1 - Machine Totally Inoperative ............. 2-3 
    Procedure 2 - Critical Alarm ....................... 2-1.0 
    Procedure 3 - Major Alarm ......................... 2-12 
    Information Gathering and Problem Clarification ........ 2-14 
    Problem Confirmation ............................. 2-17 
    Useful Aids ..................................... 2-17 
    3. PERIPHERAL EQUIPMENT TROUBLESHOOTING PROCEDURES 3-l 
    A. LINE CARDS ................................... 3-l 
    ONWStation Line Cards ........................... 3-l 
    OPS Line Card .................................. 3-5 
    COV/SUPERSET@ Line Cards ....................... 
    3-9 
    B. TRUNK CARDS ................................ 3-13 
    Supplementary E&M Trunk Troubleshooting Procedures 3-20 
    Supplementary DID Trunk Troubleshooting Procedures . 3-23 
    C. OTHER PERIPHERAL CARDS ...................... 3-28 
    Universal Card ................................. 3-28 
    DTMF Receiver Module ........................... 3-30 
    Console Interface Module ........................ 3-34 
    Music On Hold (MQH) / Pager Module .............. 3-34 
    Analog Junctors / Channels ...................... 3-38 
    D. SPECIAL SETS ................................. 3-42 
    Attendant Console ............................. 3-42 
    SUPERSET qTM Set .............................. 3-46 
    SUPERSET 3TM Set .............................. 3-50 
    4. SUBSYSTEM TROUBLESHOOTING PROCEDURES . m . . . s . . . 0 4-l 
    Main Control Card . . . . . . s . . . . . . . . . . . . . . . . . . . m . . . . . 4-1 
    Digital Bay Control Subsystem I a . . . . . s . . . . . . m . . . . . . . . 4-2 
    Analog Bay Peripheral Control Subsystem . . . . . e . . . . s . . . 4-7 
    Floppy Disk Subsystem s . . . s D s . . D . . . . . 0 . . . D . . . e . . a 4-11 
    Power Subsystem . . . . . 0 m . s . D . . . . . . . . . . . D . . . . . . . . . 4-14 
    Uninterruptable Power Supply (UPS) . . . . . , . . . D . . . . m . . 4-18 
    Maintenance / CDE Terminal . m D . . . D . . . . . . . m . . . . . . . . 4-20 
    Printer . . . . . . . . . . m . . . s . s s . . . . . s . . . m 0 . . . e . . . . m . . . 4-22 
    Cabinet Cooling System . . . u . . 0 . . . . . . . . I/ . . . . . - . . . . . 4-24 
    Power Fail Transfer System . . . . . . 0 . . . s . . . . . . 0 . . . 0 . . 4-26 
    APPENDIX A 
    Maintenance Log Messages . D . m s 0 . 0 . . . 0 s . m 0 . D . . . . . . . A-l 
    Fault Reports mm -.........-...- -.- s D q -.-.- a m.s . . . . A-2 
    AlarmLogReports . . . . . . . sm0 . . . . . . . . . Dm.O.Oms . . . . A-13 
    Alarm Reset Reasons ......s .* m.s D .) n ..m -......... A-14 
    Reset Log Reports .*- m...O.m e -.- -.- s...O 0 s en . . . . . A-15 
    . . . 
    III  
    						
    							Troubleshooting 
    CONTENTS CONT’D PAGE 
    APPENDIX B 
    Part Numbers . m e . . . . . . . . . . . . . . . . . n . 0 . . . . . . . . e s . m . B-1 
    APPENDIX C 
    Troubleshooting Kit . . . . s . . . . s . . s D . . . . . . . . . . . s ~ ~ ~ ~ ~ C-l 
    APPENDIX D 
    Loop Current Measurement . . . 0 s . . . . . . . . . ~ ~ . ~ . 0 s . . * ~ D-l 
    APPENDIX E 
    Loop Start vs Ground Start Check Q m 0 a . . e . e . . . . s 0 m . . D ~ E-l 
    APPENDIX F 
    MitelRepairTag ~...~~~..~s.DD~~~.~.~I.~.D..D..D~~ F-l 
    APPENDIX G 
    Call Processing Information e . D . s 0 . 0 a e n . m . 0 D I m 0 . . 0 D . D G-l 
    FIGURE 
    2-l 
    2-2 
    2-3 
    3-l 
    3-2 
    3-3 
    4-l 
    CHART 
    2-l 
    2-2 
    2-3 
    2-4 
    2-5 
    3-l 
    3-2 
    3-3 
    3-4 
    3-5 
    3-6 
    3-7 
    3-8 LIST OF ILLUSTRATIONS 
    TITLE PAGE 
    Main Control Card Flea Clip and Device Locations . . 2-T 
    SX-266@ DIGITAL PABX Backplane D . s e = D D r : s m . V a . 2-8 
    Main Control Card Module Locations D e n 0 = D 0 0 0 n 0 n n 2-9 
    E&M Trunk Testing e m 0 a s m n 0 s D . ~ 0 D s 0 D D s ~ ~ e m s . I 3-26 
    DID/Loop/Tie Trunk Testing . . . D D D . D n . e 0 a e s r s = m 3-27 
    Music, Paging and Relay Connections . n 0 D D D D n s 0 D 3-37 
    Bay Control Card Device Locations . D 0 . = L1 a ~ I m D . a e 4-6 
    LIST OF CHARTS 
    TITLE PAGE 
    Flowchart - Primary Troubleshooting Procedures . n D 2-2 
    Emergency Troubleshooting Procedures . . s . . s . . 0 n 2-4 
    Critical Alarm Troubleshooting Procedures - System Z-11 
    Major Alarm Troubleshooting Procedures . . . . s D 0 . 2-13 
    Information Gathering and Clarification . . . . m s . 0 . . 2-45 
    ONS/8-Station Line Card Troubleshooting Procedures 3-2 
    OPS Line Card Troubleshooting Procedures 0 . . s . . a 3-6 
    COV/SUPERSET@ Line Card Troubleshooting 
    Procedures . . . . . . . . . . . . . . . . . . . m . . . . . . . D D . 3-10. 
    General Trunk Card Troubleshooting Procedures . . 3-14 
    Supplemental E&M Trunk Troubleshooting 
    Procedures D D 0 0 s c 0 s II I) 0 D s 0 D 0 a . s . D n D = e II = s . . 3-21 
    Supplementary DID/Loop/Tie Trunk Troubleshooting 
    Procedures D L r s n D s D s D . m D D 0 e 0 D D . . s n s D D s D 0 D 3-24 
    Universal Card Troubleshooting Procedures m s s 0 m . 3-29 
    DTMF Receiver Module Troubleshooting Procedures 3-31 
    IV  
    						
    							Troubleshooting 
    CHART 
    3-9 
    3-10 
    3-11 
    3-12 
    3-13 
    4-l 
    4-2 
    4-3 
    4-4 
    4-5 
    4-6 
    4-7 
    4-8 
    4-9 
    4-l 0 
    TABLE 
    l-l 
    2-l 
    3-l 
    3-2 
    4-l 
    4-2 
    4-3 LIST OF CHARTS (CONT’D) 
    TITLE PAGE 
    Music on Hold/Pager Module Troubleshooting 
    Procedures . . . . m . . . . m 0 . . . . . . 0 . . D s . . . . . . . . 3-35 
    Analog JunctorKhannel Troubleshooting 
    Procedures s . . . . . . . 0 D . n 0 . . 0 s . . D m m . s s m . . . m 3-39 
    Attendant Console Troubleshooting Procedures . . . 3-43 
    SUPERSET qTM Set Troubleshooting Procedures . . . 3-47 
    SUPERSET 3T” Set Troubleshooting Procedures . s . 3-51 
    Bay Control Card Troubleshooting Procedures . . . . D 4-3 
    Analog Peripheral Bay Troubleshooting Procedures . 4-8 
    Floppy Disk Subsystem Troubleshooting Procedures 4-12 
    Rear-Door Power Supply Troubleshooting 
    Procedures Os.s.s..O . . . . . . . . . n . . . . . . D . . . . 4-15 
    Bay Power Supply Troubleshooting Procedures . m . 4-16 
    UPS Troubleshooting Procedures . . . . . m m e . . . . . . . 4-19 
    MaintenanceKDE Terminal Troubleshooting 
    Procedures . . . . m D 0 0 D m D 0 m D s s 0 . . m 0 m . m . D . m . . 4-21 
    Printer Troubleshooting Procedures . m e 0 . m . . Q D D . 4-23 
    Cabinet Cooling Subsystem Troubleshooting 
    Procedures . . . . . . . s . . D . . D D . 0 e s e 0 s 0 D . D . . . e 4-25 
    Power Fail Transfer Board Troubleshooting 
    Procedures . . . m . m m . u v m . . D . . s . . s s D s D . D li . . . 4-27 
    -  LIST OF TABLES 
    TITLE PAGE 
    SX-200@ DIGITAL PABX Mite1 Practices 0 0 r . 0 m . . . D : l-1 
    Troubleshooting Aids . m . . s . . . . . D . . . . m s m.. D . . . D 2-18 
    Trunk Voltage and Loop Current Measurements . . . 3-19 
    Analog Bay Link Assignments . 0 . m . . . . s v . . D m . m m 3-41 
    Bay Control Card Status LEDs . . . . m . D m s 0 m . . . . . . . 4-5 
    Bay Power Supply Test Point Voltages . . . D D D . . . D 4-17 
    Rear Door Power Supply Test Point Voltages . . 0 m s 4-17  
    						
    							Troubleshooting 
    FO R EMERGENCY 
    TROUBbESHOOTING 
    GO TO 
    CHART 2-2 
    ON P A G E 2-4 
    Vi  
    						
    							Troubleshooting 
    IMPORTANT NOTICE 
    A. CORRECT SYSTEM GROUNDING IS CRITICAL. GROUNDING 
    INSTRUCTIONS CONTAINED IN SECTION MlTL9108-093-ZOO-NA, 
    SHIPPING, RECEIVING AND INSTALLATION MUST BE ADHERED 
    TO WITHOUT EXCEPTION. NOTE THAT THE SYSTEM MAY FUNC- 
    TION ERRATICALLY, OR NOT AT ALL WITHOUT PROPER 
    GROUNDING. 
    B. THE FOLLOWING POINTS SHOULD BE CAREFULLY NOTED AND 
    THE INSTRUCTIONS THEREIN STRICTLY OBSERVED : 
    l Handle circuit cards by the edges only, and ensure that a 
    ground strap is used. Card damage may otherwise re- 
    sult. 
    0 Before replacing a card, remove the original card, check 
    for bent or damaged connectors, inspect the backplane, 
    and reseat the original card. 
    0 If a problem has been cured through the replacement of 
    a card, temporarily reinsert the original card to verify 
    that the fault is located therein. 
    0 Always provide the maximum amount of relevant data 
    on the card repair tag accompanying a faulty card (see 
    Appendix F) - never return a card without a repair tag. 
    e 
    Ensure that a system fault record is always up-to-date, 
    and kept on site. 
    vii  
    						
    							Troubleshooting 
    1. GENERAL 
    Introduction 
    1.01 This Section is intended to provide maintenance personnel with 
    a comprehensive guide to the detection, analysis and correction 
    of malfunctions of the SX-200@ DIGITAL PABX with Generic 1000 or 
    Generic 1001 software. The scope of this Section the covers the main 
    switching machine, the central office interface, stations and special 
    sets, and AC power (including grounding). The Section comprises trou- 
    bleshooting procedures, which are used to isolate and correct mal- 
    functions, together with additional supporting information. 
    1.02 Before troubleshooting is attempted, the maintenance user 
    should become very familiar with the SX-200@ maintenance 
    system. A complete description of the maintenance system is provided 
    in Section MlTL9108-093-353-NA. Further details concerning the 
    maintenance of the SX-200@ DIGITAL PABX with Generic 1000 or 
    Generic 1001 software may be found in the MITEL Sections listed in 
    Table l-l. 
    Reason for issue 
    1.03 New procedures have been added to cover new hardware. 
    TABLE l-l 
    SX-200@ DIGITAL PABX MITEL PRACTICES 
    MITLS 108-093- 1 00-NA 
    MITLS 108-093- 105-NA 
    MITL9108-093-180-NA 
    MITLS 108-093-200-NA 
    MITLS 108-093-210-NA 
    MITLS 108-093-35 1 -NA 
    MITL9108-093-353-NA General Description 
    Features Description 
    Engineering Information 
    Shipping, Receiving and 
    Installation 
    Customer Data Entry 
    RS-232 Maintenance Terminal 
    General Maintenance Information 
    Page l-121  
    						
    							Troubleshooting 
    2. PRIMARY TROUBLESHOOTING PROCEDURES 
    General 
    2.01 Troubleshooting a malfunction in any complex electronic sys- 
    tem is accomplished in a series of logical steps. This Section 
    assumes the following basic steps in the troubleshooting of a mal- 
    function: 
    GATHERING of information 
    CLARIFICATION of the problem 
    CONFIRMATION of the problem 
    ISOLATION of the problem 
    CORRECTION 
    DOCUMENTATION. 
    Chart 2-l provides the basic primary troubleshooting flowchart 
    for the SX-200@ DIGITAL PABX system. This chart acts as a 
    starting point for the troubleshooting process, and directs the trouble- 
    shooter to the appropriate detailed troubleshooting procedure. 
    2.03 The, troubleshooter, when investigating a problem, should con- 
    tinually verify each step in the isolation process so as to ensure 
    that the system, and the symptoms of the malfunction are clearly 
    understood. This will ensure that the malfunction is accuratly cate- 
    gorized so that appropriate diagnostics, where applicable, may be 
    invoked. 
    Page 24  
    						
    							Troubleshooting 
    CHART 2-l FLOWCHART - PRIMARY TROUBLESHOOTING PROCEDURES 
    rl START 
    r 
    CHECK IF MACHINE 
    IS TOTALLV 
    INOPERATIVE 
    OR CRITICAL 
    ALARM TROUBLESHOOTING 
    PROCEDURE 
    I 1-2.041 
    I 
    I 
    IS RAISED 
    I 
    I NO 
    CHECK IF MAJOR VI?-2 
    ALARM IS RAISED TROUBLESHOOTING 
    I PROCEDURE 
    CATEGORIZE PROBLEM INTO ONE OF THE 
    FOLLOWING PROCEDURE GROUPS: 
    Title 
    Lines 
    Trunks 
    Universal Card 
    QTMF Receiver 
    :onsola Module 
    #OH/Pager Module 
    &dog Junctors 
    4ttendant onsole 
    E 
    SUPERSET Sets 
    Main Control Card 
    Bay Control Card 
    Pnalog Bay Control Cards 
    Floppy Disk Subsystem 
    Power Subsystem 
    UPS 
    Malntenance/CDE Terminal 
    Printer 
    Cabinet Cooiing System 
    Power Fail Transfer System 3.01 
    3.05 
    3.08 
    3.09 
    3.10 
    3.11 
    3.12 
    3.13 
    3.14.3.45 
    4.01 
    4.06 
    4.11 
    4.16 
    4.19 
    4.20 
    4.21 
    4.22 
    4.23 
    4.24 Psga 
    3-t 
    3-73 
    3-28 
    3-30 
    3-34 
    3-34 
    3-38 
    3-42 
    l-46,3-50 
    4-l 
    4-2 
    4-7 
    4-11 
    4-14 
    4-w 
    4-20 
    4-22 
    4-24 
    4-26 (PARA 2.07) 
    Page 2-2  
    						
    							Troubleshooting 
    PROCEDURE 1 - MACHINE TOTALLY INOPERATIVE 
    0 
    General 
    2.04 When any switching machine is totally inoperative the prime 
    requirement is the restoration of service to the system, or the 
    part that has been affected. Chart 2-2 shows how to achieve this in 
    the shortest possible time. Once service has been restored, the other 
    procedures (see Chart 2-1) may be used to determine the cause of the 
    failure. 
    2.05 Note that if power fail transfer has occurred, or it is necessary 
    to invoke power fail transfer, toggle the POWER FAIL TRANSFER 
    switches on the maintenance panel(s) to prevent lines and trunks from 
    transferring back to the switch before it has been returned to oper- 
    ational status. 
    Page 2-3  
    						
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