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Digital Equipment VAX 4000 105A Troubleshooting And Diagnostics Information

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VAX 4000 Model 105A/106A
Troubleshooting and Diagnostics
Information
Order Number: EK–515AA–TS. B01
MAY 1995
This manual describes the troubleshooting and diagnostic procedures that
you can use to solve basic problems with VAX 4000 Model 105A and Model
106A systems.
Digital Equipment Corporation
Maynard, Massachusetts

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Summary of Contents for Digital Equipment VAX 4000 105A

  • Page 1 Troubleshooting and Diagnostics Information Order Number: EK–515AA–TS. B01 MAY 1995 This manual describes the troubleshooting and diagnostic procedures that you can use to solve basic problems with VAX 4000 Model 105A and Model 106A systems. Digital Equipment Corporation Maynard, Massachusetts...
  • Page 2 May 1995 Digital Equipment Corporation makes no representations that the use of its products in the manner described in this publication will not infringe on existing or future patent rights, nor do the descriptions contained in this publication imply the granting of licenses to make, use, or sell equipment or software in accordance with the description.

  • Page 3: Table Of Contents

    Contents Preface ........... . . 1 Troubleshooting and Diagnosing Problems Troubleshooting Procedure .
  • Page 4 Tables 1–1 Basic Troubleshooting ......1–3 2–1 Status LED Display and Break Enable Meanings ..2–10...

  • Page 5: Preface

    Preface This manual describes the troubleshooting and diagnostic procedures that you can use to solve basic problems with VAX 4000 Model 105A/106A systems. This manual is intended for people who have had some experience using computers. This manual has two chapters and an index. See VAX 4000 Model 105A/106A Operator Information, EK–513AA–OP, for the list of associated and related documents.

  • Page 7: Troubleshooting And Diagnosing Problems

    Troubleshooting and Diagnosing Problems This chapter describes the troubleshooting procedure that you can use to solve basic problems with VAX 4000 Model 105A and Model 106A systems. 1.1 Troubleshooting Procedure If a problem occurs, you must first make sure that all the cables, loopback connectors, and terminators are correctly connected and that the connectors are not damaged, for example, the pins may be broken or short-circuited.

  • Page 8: Using The Troubleshooting Table

    6. Check that the following terminators, if installed, are correctly connected and are not damaged: • DSSI terminator(s) • SCSI terminator • ThinWire Ethernet terminator (T-connector and two terminators) If you have correctly followed steps 1 to 5, the on/off switches on all the components are set to the off (O) position, and you have solved any problems caused by incorrectly connected cables or terminators.
  • Page 9 Table 1–1 Basic Troubleshooting Symptom Possible Cause Suggested Solution System Problems The system unit fan is off The power cord is not Make sure that all the power cords or the power light is off. connected. The power cord are connected correctly at both may be faulty.
  • Page 10 Table 1–1 (Cont.) Basic Troubleshooting Symptom Possible Cause Suggested Solution System Problems The terminal cable may be Connect the terminal cable and faulty. the terminal to another system. If the connected terminal works, the console circuitry or MMJ connector is faulty. Otherwise, the cable is faulty.
  • Page 11 Table 1–1 (Cont.) Basic Troubleshooting Symptom Possible Cause Suggested Solution EF/RF-Series Integrated Storage Element (ISE) Problems Problem in the controller or If the Fault indicator stops ISE. blinking, the system may have corrected itself. Run MDM. If the Fault indicator remains lit, call your Digital service representative.
  • Page 12 Table 1–1 (Cont.) Basic Troubleshooting Symptom Possible Cause Suggested Solution TZ30 Tape Drive Problems The TZ30 green LED The drive mechanism is Press and release the unload button flashes rapidly. faulty or the tape cartridge to clear the fault. If the LED is damaged.
  • Page 13 Table 1–1 (Cont.) Basic Troubleshooting Symptom Possible Cause Suggested Solution TLZ06/TLZ07 Cassette Tape Drive Problems The system cannot write to The write-protect switch If the write-protect LED is on, the cassette tape. is in the write-protect remove the tape, reset the switch position.

  • Page 15: Diagnostic Tests And Commands

    Diagnostic Tests and Commands This chapter describes the diagnostic commands that you can use to solve basic problems with VAX 4000 Model 105A and Model 106A systems. If you need to contact Digital services for further assistance, this chapter also lists the information that you must give to your Digital services representative, and tells you where to find this information.
  • Page 16 KA53-A Vn.n, VMB 2.14 Performing normal system tests. 74..73..72..71..70..69..68..67..66..65..64..63..62..61..60..59.. 58..57..56..55..54..53..52..51..50..49..48..47..46..45..44..43.. 42..41..40..39..38..37..36..35..34..33..32..31..30..29..28..27.. 26..25..24..23..22..21..20..19..18..17..16..15..14..13..12..11.. 10..09..08..07..06..05..04..03.. Tests completed. >>> Central Processing Unit (CPU) Name, Firmware Version Number, and Virtual Memory Boot (VMB) Version Number Read-Only Memory (ROM) based diagnostics countdown Status Message Console Prompt 2–2 Diagnostic Tests and Commands...
  • Page 17 If SIMM_OD is not present or not plugged in correctly, the system responds with a display similar to the following example: KA53-A Vn.n, VMB 2.14 Performing normal system tests. 74..73..72..71..70..69..68..67..66..65..64..63..62.. ? Test_Subtest_DC_88 Loop_Subtest=05 Err_Type=FF DE_NO_Memory_present.lis Vec=0000 Prev_Errs=0000 P1=E04EE04E P2=00000000 P3=00000000 P4=00001006 P5=00000000 P6=7F337F7F P7=00000000 P8=00000000...
  • Page 18 2.1.2 Self-Tests Self-tests perform the same tests as the power-up tests except for one difference; the power-up tests test all the devices in the system, whereas the self-tests allow you to test a single device. Execution of the SHOW CONFIG command produces the display showing the failure of the device DZ, as shown in Example 2–1.
  • Page 19 In the example in this section, the show configuration display shows the the DZ device has failed. The self-test number for this device is E4. See Example 2–2. Test E4 should be run by entering T E4 at the console prompt.
  • Page 20 Example 2–2 (Cont.) Listing Diagnostics 63 2005CF48 QDSS_any input_csr selftest_r0 selftest_r1 ****** 80 200649FC CQBIC_memory bypass_test_mask ********* 81 2005CBA8 Qbus_MSCP IP_csr ****** 82 2005CD70 Qbus_DELQA device_num_addr **** 83 20058C70 QZA_Intlpbck1 controller_number ******** 84 2005A328 QZA_Intlpbck2 controller_number ********* 85 20057EE4 QZA_memory incr test_pattern controller_number ******* 86 200583A0 QZA_DMA Controller_number main_mem_buf ********...
  • Page 21 Example 2–2 (Cont.) Listing Diagnostics A0 User defined scripts A1 Powerup tests, Functional Verify, continue on error, numeric countdown A3 Functional Verify, stop on error, test # announcements A4 Loop on A3 Functional Verify A6 Memory tests, mark only multiple bit errors A7 Memory tests A8 Memory acceptance tests, mark single and multi-bit errors, call A7 A9 Memory tests, stop on error...

  • Page 22: Contacting Digital™ Services

    2.2 Contacting Digital™ Services WARNING Only authorized service personnel should service this equipment. If you have followed the procedure in this chapter but the problem remains unsolved, your Digital services representative can help you. Before you place your call, follow these steps: 1.
  • Page 23 Figure 2–1 Status LED Display MLO-011847 Status LED Display Break Enable LED Diagnostic Tests and Commands 2–9...
  • Page 24 Table 2–1 Status LED Display and Break Enable Meanings LED Number Color Meaning LED 0, 1, 2, 3 Green Binary readout indicating certain system tests and functions. LED 4 Green Reset indicator; when extinguished, indicates that the reset is active. LED 5, 6 —...
  • Page 25 Index DSSI terminator, 1–2 Cables checking connections, 2–4 EF/RF-Series checking the console terminal cable, 1–1 controller error, 1–5 checking the Ethernet cables, 1–1 duplicate node id, 1–4 checking the expansion box power cords, fault indicator, 1–4 1–1 integrated storage element, 1–4 checking the expansion box SCSI cables, read error, 1–5 1–1...
  • Page 26 Loopbacks SCSI terminator, 1–2 checking, 1–1 Security password, 2–1 standard Ethernet, 1–1 Self-tests, 2–4 running, 2–5 Standard Ethernet, 1–2 Status LED display, 2–9 Operating system software location, 2–9 troubleshooting, 1–3 System unit checking power cord, 1–1 troubleshooting, 1–3 turning off, 1–1 Peripherals turning on, 1–2 turning off, 1–1...
  • Page 27 TZ30 head cleaning, 1–7 green LED, 1–6 QIC tape drive, 1–7 head cleaning, 1–6 troubleshooting, 1–7 operate lever faults, 1–6 write-protect error, 1–7 tape drive, 1–5 troubleshooting, 1–5 unload button, 1–6 Write-protect switch write-protect error, 1–6 TZ30, 1–6 TZK10/TZK11 TZK10/TZK11, 1–7 amber LED, 1–7 Index–3...
  • Page 29 Reader’s Comments VAX 4000 Model 105A/106A Troubleshooting and Diagnostics Information EK–515AA–TS. B01 Your comments and suggestions help us improve the quality of our publications. Thank you for your assistance. I rate this manual’s: Excellent Good Fair Poor Accuracy (product works as manual says) Completeness (enough information) Clarity (easy to understand) Organization (structure of subject matter)
  • Page 30 If Mailed in the United States BUSINESS REPLY MAIL FIRST CLASS PERMIT NO. 33 MAYNARD MASS. POSTAGE WILL BE PAID BY ADDRESSEE DIGITAL EQUIPMENT CORPORATION Shared Engineering Services MLO5–5/E76 2 THOMPSON STREET MAYNARD, MA 01754-1716 Do Not Tear – Fold Here...

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Vax 4000 106a