_ FCO RA81X-I014 Rev C, HDA/drive chassis at different ground ref ----------------------------------------------------------------------------| | _ _ _ _ _ _ _ | | | | | | | | | | Level of Page 1 | | |d|i|g|i|t|a|l| Urgency Of 15 | | |_|_|_|_|_|_|_| FCO [ I ] | |___________________________________________________________________________| | FIELD CHANGE ORDER Number: RA81X-I014 | |___________________________________________________________________________| | Applicability: Rework ALL RA81 Drives. | | | | | This revised FCO supersedes the Revision B dated 25 February 1986. | | || It has been revised to reflect changes in the Quick Check statement | | | the Bill of Materials, and the rework procedure. | |___________________________________________________________________________| | Problem/Symptoms: | | HDA Chassis and the drive Chassis are at different Ground References. | | Data Errors (ECC) are not related to media defects. | | | |___________________________________________________________________________| | Quick Check: | | Ground Strap attached between HDA and Power Supply Chassis | | Ground Stud. | |___________________________________________________________________________| | Compatibility/Prerequisite FCO: | Est. Time to Install | | RA81X-R009 and RA81X-R012 | 0.5 Hours | |___________________________________________________|_______________________| | Special Tools or Test Equipment: | | N/A | |___________________________________________________________________________| | FCO Parts Information | |___________________________________________________________________________| | Order by | Contents | | FCO Kit # |____________________________________________________________| | | Quantity Part Number Description | | | | | EQ-01380-01 | 1 See Page 2. | | | | | FA-04662-01 | 1 FCO Document | | | | |______________|____________________________________________________________| | EQ Kit Variation/System-Option Applic: | |___________________________________________________________________________| | Approvals | |___________________________________________________________________________| | CSSE Engineer |F.S. Product Safety | F.S. Logistics | | Keith Brown | Steve Caccia | Ed Duggan | |________________________|_________________________|________________________| | Responsible CSSE Mgr |F.S. Microfiche Libraries| Affected Population | | Mike Mayfield | | 10,000 | |________________________| EP-FSP11-LB PDP11 |_______________________ | | ESD&P Micropublishing | EP-FSLCG-LB LCG | Initial Kitting | | Ray LeBlanc | EP-FSNVX-LB VAX | 6,000 | |________________________| |_______________________ | | Revision | VAXnotes | Hardcopy Publication | | C | STARS | 6,000 | |________________________| |________________________| | FCO Release Date | | Parts Availability | | 02 October 1986 | | January 1986 | +---------------------------------------------------------------------------+ _ _ _ _ _ _ _ | FCO RA81X-I-014 | | | | | | | | | |d|i|g|i|t|a|l| | PAGE 2 OF 15 |_|_|_|_|_|_|_| | | _______________________________|_________________________________________ FCO PARTS INFORMATION Order by Quantity: Part Number: Description: FCO Kit#: EQ-01380-01 1 12-25629-01 GROUNDING STRAP 1 12-26091-01 CLIP, GROUNDING 1 90-10075-01 SCREW, TAP HEXWW 1 90-06565-00 NUT, HEX EXT TOOTH LCKWSHR 10-32 1 90-07651-00 WASHER, LOCK FA-04662-01 1 FCO DOCUMENTATION Note: The following kit item has been deleted: P/N 90-08151-00 The following kit item have been added: P/N 12-26091-01 _ _ _ _ _ _ _ | FCO RA81X-I-014 | | | | | | | | | |d|i|g|i|t|a|l| | PAGE 3 OF 15 |_|_|_|_|_|_|_| | | _______________________________|_________________________________________ HDA GROUND STRAP INSTALLATION ---------------------------------- 1. Request the RA81 drive from the customer. 2. Depress the "A" and the "B" port switches on the Operator Control Panel to the "OUT" position (FIGURE 1). 3. The RA81 drive must be dismounted and deselected. 4. Spin down the drive by depressing the RUN/STOP switch on the Operator Control Panel to the "OUT" position (FIGURE 1). _ _ _ _ _ _ _ | FCO RA81X-I-014 | | | | | | | | | |d|i|g|i|t|a|l| | PAGE 4 OF 15 |_|_|_|_|_|_|_| | | _______________________________|_________________________________________ 5. Open the back door to the cabinet. ****************************************************** * C A U T I O N * * * * BEFORE PROCEEDING, TURN OFF THE AC CIRCUIT BREAKER * * AT THE REAR OF THE DRIVE AND DISCONNECT THE MAIN * * AC POWER CORD FROM THE POWER SUPPLY ON THE REAR OF * * THE DRIVE (FIGURE 2). * * * ****************************************************** 6. If the drive is fixed mounted (top drive), proceed to rework step 11. _ _ _ _ _ _ _ | FCO RA81X-I-014 | | | | | | | | | |d|i|g|i|t|a|l| | PAGE 5 OF 15 |_|_|_|_|_|_|_| | | _______________________________|_________________________________________ 7. Pull out the cabinet stabilizer bar (FIGURE 3). ***************************************************** * C A U T I O N * * * * NEVER SLIDE A DRIVE OUT OF THE CABINET WITHOUT * * EXTENDING THE CABINET STABILIZER BAR. * * * ***************************************************** _ _ _ _ _ _ _ | FCO RA81X-I-014 | | | | | | | | | |d|i|g|i|t|a|l| | PAGE 6 OF 15 |_|_|_|_|_|_|_| | | _______________________________|_________________________________________ 8. Remove the screw holding the back of the disk drive to the electrostatic discharge bracket (FIGURE 4). _ _ _ _ _ _ _ | FCO RA81X-I-014 | | | | | | | | | |d|i|g|i|t|a|l| | PAGE 7 OF 15 |_|_|_|_|_|_|_| | | _______________________________|_________________________________________ 9. Slowly pull the drive out on it's slides until it locks into place. 10. Push up on the slide lock arm "A" to further extend the drive all the way out (FIGURE 5). _ _ _ _ _ _ _ | FCO RA81X-I-014 | | | | | | | | | |d|i|g|i|t|a|l| | PAGE 8 OF 15 |_|_|_|_|_|_|_| | | _______________________________|_________________________________________ 11. Raise the drive logic chassis by pushing the release latch with a standard screwdriver (FIGURE 6). _ _ _ _ _ _ _ | FCO RA81X-I-014 | | | | | | | | | |d|i|g|i|t|a|l| | PAGE 9 OF 15 |_|_|_|_|_|_|_| | | _______________________________|_________________________________________ 12. Attach E.S.D. wrist strap to chassis ground stud (FIGURE 7). _ _ _ _ _ _ _ | FCO RA81X-I-014 | | | | | | | | | |d|i|g|i|t|a|l| | PAGE 10 OF 15 |_|_|_|_|_|_|_| | | _______________________________|_________________________________________ 13. Remove all four (4) of the Read/Write Module (54-15253) hold down screws. (FIGURE 8). 14. Lift the rear portion of the Read/Write module. 15. Place the Grounding Clip (12-26091-01) over the left rear Read/ Write module mounting eyelet (FIGURE 8). Insure that the mounting Eyelet and the Grounding Clip holes are aligned. 16. Lay the Read/Write back in place, and attach the two front hold down screws using the short Screws. 17. Insert the Longer Screw through one end of the HDA Ground Strap (12-25629-01) (FIGURE 8). 18. Place one Star Washer (90-08151-00) on top of the left rear Read/Write module grounding pad (FIGURE 8). 19. Insert the Ground Strap and Longer Screw through the grounding clip on the left rear side of the Read/Write module and tighten. Do not over torque the screw, it may strip the HDA standoff threads (FIGURE 8). _ _ _ _ _ _ _ | FCO RA81X-I-014 | | | | | | | | | |d|i|g|i|t|a|l| | PAGE 11 OF 15 |_|_|_|_|_|_|_| | | _______________________________|_________________________________________ 20. Attach the other end of the Ground Strap to the Power Supply ground stud using the Kept Nut and Star Washer supplied in the EQ Kit (SEE DETAIL A and B of FIGURE 7). 21. Close the logic chassis, DO NOT SLAM SHUT - HDA DAMAGE MAY OCCUR. _ _ _ _ _ _ _ | FCO RA81X-I-014 | | | | | | | | | |d|i|g|i|t|a|l| | PAGE 12 OF 15 |_|_|_|_|_|_|_| | | _______________________________|_________________________________________ 22. Remove the front bezel by removing the upper and lower mounting screws from each side of the drive (FIGURE 9) and change the switches to reflect a hexadecimal seven (7). See FIGURE 10 for Hardware Revision Level switches. _ _ _ _ _ _ _ | FCO RA81X-I-014 | | | | | | | | | |d|i|g|i|t|a|l| | PAGE 13 OF 15 |_|_|_|_|_|_|_| | | _______________________________|_________________________________________ _ _ _ _ _ _ _ | FCO RA81X-I-014 | | | | | | | | | |d|i|g|i|t|a|l| | PAGE 14 OF 15 |_|_|_|_|_|_|_| | | _______________________________|_________________________________________ 23. Replace the front bezel cover. 24. If this is a fixed mount drive, proceed to step 27. 25. Push in on slide arm "B" and slowly slide the drive back into the cabinet (FIGURE 5). 26. Reinstall the screw holding the back of the drive to the electrostatic discharge bracket (FIGURE 4). ******************************************************* * C A U T I O N * * * * THE SCREW HOLDING THE BACK OF THE DRIVE TO THE * * ELECTROSTATIC DISCHARGE BRACKET MUST BE INSTALLED * * * ******************************************************* 27. Reconnect the AC power cord at the rear of drive, to the AC receptacle (FIGURE 2). 28. Turn the AC Circuit Breaker, at the rear of the drive, to the "ON" position (FIGURE 2). 29. Spin up the drive by pressing the RUN/STOP switch (FIGURE 1). 30. After the drive has spun up and a ready light is "ON", press the "A" and/or "B" port switches on the Operator Control Panel to the "IN" position (FIGURE 1). 31. Run at least one (1) pass of RA81 drive diagnostics. VAX 32 BIT UDA50, EVRLA or EVRLG HSC50/ILEXER PDP-11 16 BIT UDA50,CZUDC or CZUDI DEC 10/20 36 BIT HSC50/ILEXER 32. Return the RA81 drive to the customer for software initialization. 33. Enter the FCO activity in the Site Management Guide and complete the LARS form for FCO reporting. _ _ _ _ _ _ _ | FCO RA81X-I-014 | | | | | | | | | |d|i|g|i|t|a|l| | PAGE 15 OF 15 |_|_|_|_|_|_|_| | | _______________________________|_________________________________________ LARS Activity DEC Type Action FCO # Material Option of Taken Comments Used Call ********************************************************************** For Contract and Warranty Customers U.S. and G.I.A. W RA81 M D RA81X-I014 EQ-01380-01 ********************************************************************** For Contract and Warranty Customers EUROPE Y RA81 M I RA81X-I014 EQ-01380-01 ********************************************************************** \^ RA81X \\RA81X \\RA81X-I014 \\BROWN \\1986 \\OCT \\FCO_DOCS