_ FCO DHW4X-F001, Failure on rev B03 DHW4X Logic Board ______________________________________________________________________________ | DIGITAL FCO CATEGORY PAGE 1 | | [F] OF 8 | |______________________________________________________________________________| | FIELD CHANGE ORDER NUMBER: DHW4X-F001 | |______________________________________________________________________________| | APPLICABILITY: This FCO applies to MicroVAX 3100 Models 30, 40 and 80 with | | a DHW41/42 asynchronous communications option that uses a revision B03 logic | | board 54-20662-01. The DHW41/42 family includes: DHW41-AA and -BA for the | | Model 30; DHW42-AA, -BA and -CA for Models 40 and 80. Hereafter, this | | option will be referred to as DHW4X. ECO's 5420662-TWO001 and -TWO01A | | apply to this FCO. | | | |______________________________________________________________________________| | PROBLEM & SYMPTOM: The DHW4X option will "lock-up" or "hang" | | at intermittent intervals, depending on customer application, because of | | lost interrupts caused by a failure on the rev. B03 DHW4X logic board | | 54-20662-01 to process data. Once "lock-up" occurs, any/all devices | | attached to the DHW4X cannot be stopped or cleared. (Continued on Page 2) | | | | | |______________________________________________________________________________| | SOLUTION: Replace the revision B03 logic board (54-20662-01) with part | | revision C03. | | | | | |______________________________________________________________________________| | QUICK CHECK: Look for revision C03 printed on the 54-20662-01 logic board. | | To determine the rev. level, the system unit must be disassembled and | | the 54-20662-01 logic board removed for inspection. If it is at rev. B03 | | this FCO is required. | |______________________________________________________________________________| | PRE/COREQUISITE FCO: If the 3100 CPU module has version V1.1 | | | firmware, then FCO KA45-F001 (Models 30 and 40) or FCO KA47-F001 | MTTI HRS | | (Model 80) should also be installed on the system. | 1.2 | |______________________________________________________________________________| | TOOL/TEST EQUIPMENT: Field service tool kit and electrostatic kit. | |______________________________________________________________________________| | FCO PARTS INFORMATION | |______________________________________________________________________________| | FCO KIT NO. | DESCRIPTION OF CONTENTS | |______________|_______________________________________________________________| |EQ-01668-01 | 54-20662-01 module | | | | |FA-05002-01 | FCO DOCUMENT | | | | |______________|_______________________________________________________________| | FCO CHARGING INFORMATION (See Last Page) | |______________________________________________________________________________| | APPROVALS | |______________________________________________________________________________| |TECH. ENGINEER |BUSINESS MGR. |DSHQ LOGISTICS |DS PRODUCT SAFETY | |Greg Stillings |Vin Indorato |Barry Weinstein |Robert Brister | |_________________|____________________|___________________|___________________| |MICROMEDIA |PARTS AVAILABILITY |FCO REVISION |FCO RELEASE DATE | |Diane MacDonald |February, 1993 |A |18 Feb 1993 | |_________________|____________________|___________________|___________________| _ _ _ _ _ _ _ | FCO DHW4X-F001 | | | | | | | | | |d|i|g|i|t|a|l| | PAGE 2 OF 8 |_|_|_|_|_|_|_| | | _______________________________|_________________________________________ Problem/Symptom: (Continued from Page 1) The frequency of the "lock-up" can occur hourly, daily, weekly or longer depending on the amount of data being processed through the DHW4X. The "lock-up" is especially noticeable when bar code readers are used with the DHW4X. Neither the console terminal port OPA0 nor the TTA# ports are affected by the "lock-up". Once "lock-up" occurs, system reboot is necessary to unlock the DHW4X. Field Installation and Test Procedure ** NOTE ** Read these instructions completely before attempting installation of this FCO. If problems are encountered during the procedures described herein, refer to the documentation listed in Step 18. ***************************************************************************** * CAUTION * * * * The internal Field Replaceable Units (FRU's) handled during this procedure* * are sensitive and can be damaged by electrostatic discharge (ESD). Wear a* * wrist strap and place an anti-static mat under the system unit when * * working with the internal parts of the system unit. * ***************************************************************************** 1. Operating system shutdown: Have the customer notify all affected system users and shutdown the operating system following the procedures described in the operating system documentation. 2. Display the system configuration: (for reference later on) a. Press the Halt button on the back of the system unit to put the system in console mode. The system should respond with the console prompt (" >>> ") when in console mode. b. Enter the command >>> SHOW CONFIG . A sample system response follows for a system with a KA45 CPU board with 8 MB memory and version V1.1 firmware, an RZ24 system disk and TZ30 tape drive, a DSW42 synchronous communications option and a DHW42 asynchronous comm option. The following configuration display indicates a healthy system because: * All devices indicate an " OK " status * No soft errors (" ? ") are indicated * No hard errors (" ?? ") are indicated KA45-A V1.1-31E-V4.0 08-00-2B-16-44-48 8MB ** NOTE ** THE ABOVE CONFIGURATION DISPLAY INDICATES THAT THE CPU FIRMWARE IS VERSION V1.1. IF THE SYSTEM YOU'RE INSTALLING THE FCO IN HAS THIS VERSION OF FIRMWARE, INSTALL FCO KA45/KA47-F001 AT THIS TIME. _ _ _ _ _ _ _ | FCO DHW4X-F001 | | | | | | | | | |d|i|g|i|t|a|l| | PAGE 3 OF 8 |_|_|_|_|_|_|_| | | _______________________________|_________________________________________ DEVNBR DEVNAM INFO ------ -------- -------------------------- 1 NVR OK 3 DZ OK 4 CACHE OK 5 MEM OK 8MB = SY=8MB, S0/1=0MB, S2/3=0MB, S4/5=0MB 6 FPU OK 7 IT OK 8 SYS OK 9 NI OK 10 SCSI OK 3-RZ24 5-TZ30 6-INITR 12 COMM OK DSW41/42 2 CHANNEL V3.11-47 14 ASYNC OK DHW41/42 V1.6 Make a note of the system configuration for reference later in Step 13. 3. Power-down the system: Turn off the following in the order shown: a. Console terminal b. All connected peripheral devices c. All connected expansion boxes d. The system unit 4. Remove all connections from the system unit's rear panel: Disconnect from the system unit the power cord, cables, loopback connectors and terminators. 5. Remove the system unit's enclosure cover: Loosen the two captive Philips screws (12-30338-05) on the back of the system unit. Slide the cover forward and lift it up from the system unit. 6. Remove the mass storage drive mounting shelf/shelves: ** NOTE ** You can remove the drive-mounting shelf/shelves with all the mass storage devices attached and without disconnecting the power cable and SCSI cable from the mass storage devices. _ _ _ _ _ _ _ | FCO DHW4X-F001 | | | | | | | | | |d|i|g|i|t|a|l| | PAGE 4 OF 8 |_|_|_|_|_|_|_| | | _______________________________|_________________________________________ *************************************************************************** * * * CAUTION * * * * When you disconnect the SCSI cable from the CPU board, ensure that you * * do not damage or disturb the MS44 memory modules (SIMM). * * * * Be careful not to disturb any green wire connections on the CPU board. * * * *************************************************************************** a. For the Model 30, there is one drive mounting shelf. 1. On the power supply unit, disconnect the 'flying lead' power cable that supplies power to the mass storage devices. 2. Loosen the three captive screws that secure the drive mounting shelf to the enclosure (2 screws) and power supply unit (1 screw). 3. Loosen the two captive Philips screws (90-09984-07) on the right side of the enclosure. 4. Slide the drive mounting shelf towards the front of the enclosure as far as it will go. 5. Disconnect from the CPU board the 'flying lead' SCSI cable that extends from the drive mounting shelf. Refer to Figure 1 for the location of the SCSI connector. 6. Lift the drive mounting shelf up from the enclosure and set it aside. b. For Models 40 and 80, there are two drive mounting shelves; these can be removed as one unit. 1. On the power supply unit, disconnect the two 'flying lead' power cables that supply power to the mass storage devices. 2. Loosen the two captive screws that secure the upper drive mounting shelf to the power supply unit. 3. Loosen the two captive screws that secure the lower drive mounting shelf to the enclosure. 4. Loosen the two Philips screws (90-09984-07) that secure the lower drive mounting shelf to the enclosure. 5. Slide the upper and lower drive mounting shelf combination towards the front of the enclosure as far as it will go. 6. Disconnect from the CPU board the 'flying lead' SCSI cable that extends from the drive mounting shelf combination. Refer to Figure 1 for the location of the SCSI connector. 7. Lift the drive mounting shelf combination up from the enclosure and set it aside. _ _ _ _ _ _ _ | FCO DHW4X-F001 | | | | | | | | | |d|i|g|i|t|a|l| | PAGE 5 OF 8 |_|_|_|_|_|_|_| | | _______________________________|_________________________________________ 7. Remove and inspect the 54-20662-01 logic board to determine it's revision: a. Refer to Figure 1 which shows the location of the 54-20662-01 logic board that needs to be removed. b. Press the latch on one of the stand-off pillars and push up the corner of the 54-20662-01 logic board until the 54-20662-01 logic board is released from the stand-off pillar. c. Press the latch on the other stand-off pillar and push up the corner of the 54-20662-01 logic board until the latch releases the 54-20662-01 logic board from the stand-off pillar. d. Push up the 54-20662-01 logic board until the connectors on the 54-20662-01 logic board disengage from the connectors on the CPU board. e. Remove the 54-20662-01 logic board from the enclosure and note the revision level of the 54-20662-01 logic board, printed on the component side of the board. 8. Re-install the desired revision level 54-20662-01 logic board: Ensure the board is at revision C03. Follow Step 7 in reverse, then go to Step 9. 9. Re-install the mass storage drive mounting shelf/shelves: Follow Step 6 in reverse, then go to Step 10. 10. Re-install the system unit's enclosure cover: Follow Step 5 in reverse, then go to Step 11. 11. Re-install all connections on the system unit's rear panel: Connect the terminators, loopback connectors, cables and the power cord to the system unit. 12. Power-up the system: Turn on the following in the order shown: a. All connected expansion boxes b. All connected peripheral devices c. Console terminal d. The system unit 13. Run system verification test: Wait for the system unit's power-up self- test to complete. Enter the command >>> SHOW CONFIG . Verify that: * The power-up self-test is successful (ie, no hard errors) * The status for all devices is the same as indicated from Step 2.b. If problems are indicated, refer to the documentation listed in Step 18. 14. Reboot the operating system: Follow the system reboot procedures. 15. Report this FCO activity on the LARS form in the "Fail Area/Module/FCO/ COMMENTS column as follows: FCO DHW4X-F001 (See LARS example on the last page of this document). _ _ _ _ _ _ _ | FCO DHW4X-F001 | | | | | | | | | |d|i|g|i|t|a|l| | PAGE 6 OF 8 |_|_|_|_|_|_|_| | | _______________________________|_________________________________________ 16. Clean-up: Tag the 54-20662-01 module as indicated below: Part # 54-20662-01 Rev Insert part rev from module here Reason for return FCO Comments FCO DHW4X-F001 17. Package the 54-20662-01 module into the container from the kit and return through normal logistics channels. 18. MicroVAX 3100 Platform Maintenance Information Kit: For more information, refer to the MicroVAX 3100 Platform Maintenance Information Kit (MIK) - part number QZ-K44AC-GZ - which contains the following documents: Volume 1: ________ EK-A0512-MG Guide to the MicroVAX 3100 Platform Maintenance Information Kit EK-A0541-CL Cover Letter for MicroVAX 3100 Platform Internal Options EK-A0510-MG BA42-A Enclosure Maintenance EK-A0511-MG BA42-B Enclosure Maintenance EK-A0519-MG Options EK-MV310-IP Illustrated Parts Breakdown Volume 2: ________ EK-A0513-MG KA45 CPU System Maintenance EK-A0514-MG KA47 CPU System Maintenance EK-A0574-HR CPU Reference Information _ _ _ _ _ _ _ | FCO DHW4X-F001 | | | | | | | | | |d|i|g|i|t|a|l| | PAGE 7 OF 8 |_|_|_|_|_|_|_| | | _______________________________|_________________________________________ Figure 1 - Generic Diagram of CPU Boards used in MicroVAX 3100-30, -40 & -80 ____________________________________________________________________________ {Latest revision DHW4X logic board is shown} Back of system - I/O panel +-------------------------------------------------------------------------+ | External connectors | +-------------------------------------------------------------------------+ | KA45-AA CPU board (54-20654-01) | | < OR > | | KA47-AA CPU board (54-20652-01) | | | | | | | | | | | | +-----------------------------+ +-----------------------------+ | P | | MS44 SIMM 3L | | MS44 SIMM 3H | | o | +-----------------------------+ +-----------------------------+ | w | +-----------------------------+ +-----------------------------+ | e | | MS44 SIMM 2L | | MS44 SIMM 2H | | r | +-----------------------------+ +-----------------------------+ | | +-----------------------------+ +-----------------------------+ | S | | MS44 SIMM 1L | | MS44 SIMM 1H | | u | +-----------------------------+ +-----------------------------+ | p | +------------------+| p | +-------------------+ | * || l | | SCSI connector | | || y | +-------------------+ | || | | || U | | || n | | || i | | || t | | || | Asterisks (*) - 2 positions - | || | show location of standoff | || | pillars on 54-20662-01 | || | | || | | DHW4X || | | Logic board || | | 54-20662-01 || | | Rev C03 || | | || | | || | | || | | || | | || | | || | | * || | +------------------+| | | | | +-------------------------------------------------------------------------+ Front of system _ _ _ _ _ _ _ | FCO DHW4X-F001 | | | | | | | | | |d|i|g|i|t|a|l| | PAGE 8 OF 8 |_|_|_|_|_|_|_| | | _______________________________|_________________________________________ LARS CATEGORY F USA GIA EUROPE Activity - (a)Contract and Warranty W U W OR K (b)IN-DEC Contract K A Hardware Segment Code 111 111 111 Non Contract/Non Warranty F F F (c)RTD/Off-site Agreement F F F Product Line 01 01 031 DEC Option DHW41-AA DHW41-AA DHW41-AA or DHW41-BA DHW41-BA DHW41-BA or DHW42-AA DHW42-AA DHW42-AA or DHW42-BA DHW42-BA DHW42-BA or DHW42-CA DHW42-CA DHW42-CA OPTION ID (As applicable) N/A N/A Type of Call M M M Action Taken D D I OR V Fail Area-Module-FCO-Comments DHW4X-F001 DHW4X-F001 DHW4X-F001 Material Used EQ-01668-01 EQ-01668-01 EQ-01668-01 (a) Warranty Optimum, Warranty Standard and Warranty Basic (on-site) Agreements; * Note material (only) free of charge for all customers. (b) Applies to IN-DEC Area Only (c) RTD=Return to Digital or Off-site Agreements; If Field Engineer On-site, use Activity Code "F". ______________________________________________________________________________ | FCO CHARGING INFORMATION | |______________________________________________________________________________| | WARRANTY/CONTRACT || NONWARRANTY/NONCONTRACT | |___________________________||_________________________________________________| | ON-SITE | OFF-SITE || ON-SITE | OFF-SITE | MATERIAL ONLY | |_____________|_____________||_____________|_____________|_____________________| |TRAVEL/| EQ | | EQ ||TRAVEL/| EQ | | EQ |ORDER-ADMIN,HANDLING | |INSTALL| KIT |INSTALL| KIT ||INSTALL| KIT |INSTALL| KIT |PKG,SHIPPING & EQ KIT| |_______|_____|_______|_____||_______|_____|_______|_____|_____________________| | DEC | DEC | DEC | DEC || CUS | CUS | CUS | CUS | CUS | |_______|_____|_______|_____||_______|_____|_______|_____|_____________________| \\FCO_DOCS