520 lines
17 KiB
TeX
520 lines
17 KiB
TeX
\chapter{FRU REMOVAL AND REPLACEMENT PROCEDURES}
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\setcounter{page}{1}
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\section{Introduction}
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This chapter describes the removal and replacement procedures for the
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field replaceable units (FRUs). To use this chapter, find the name of the
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FRU that needs replacing in \tabref{3-1} then go to the section listed beside
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the FRU. Follow the steps in the section to remove the FRU and reverse
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the procedures to replace the FRU.
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\begin{tbl}{FRU Section Listings}{l l l}
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\textbf{FRU} & \textbf{Section} & \textbf{Page} \\
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\hline
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Battery pack & \npara{3.10} & 3-33 \\[0.5em]
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DEC423 Converter (MicroVAX 2000 only) & \npara{3.15.1} & 3-53 \\[0.5em]
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Expansion adapter & \npara{3.16} & 3-54 \\[0.5em]
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Expansion adapter disk interface module & \npara{3.16.1} & 3-56 \\[0.5em]
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Hard disk expansion box & \npara{3.17.1} & 3-58 \\[0.5em]
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Keyboard (VAXstation 2000 only) & \npara{3.13} & 3-51 \\[0.5em]
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Memory module & \npara{3.5} & 3-17 \\[0.5em]
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Mouse (VAXstation 2000 only) & \npara{3.14} & 3-52 \\[0.5em]
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Network interconnect module & \npara{3.6} & 3-18 \\[0.5em]
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Power supply in hard disk expansion box & \npara{3.17.1.2} & 3-66 \\[0.5em]
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Power supply in system box & \npara{3.11} & 3-64 \\[0.5em]
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Power supply in tape drive expansion box & \npara{3.17.2.3} & 3-79 \\[0.5em]
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RD32 disk drive & \npara{3.8} & 3-24 \\[0.5em]
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RD32 disk drive device electronics board & \npara{3.8.1} & 3-27 \\[0.5em]
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\end{tbl}
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\begin{tblcont}{FRU Section Listings}{l l l}
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\textbf{FRU} & \textbf{Section} & \textbf{Page} \\
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\hline
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RD53 disk drive & \npara{3.7} & 3-19 \\[0.5em]
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RD53 disk drive device electronics board & \npara{3.7.1} & 3-21 \\[0.5em]
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RD53 disk drive in hard disk expansion box & \npara{3.17.1.1} & 3-60 \\[0.5em]
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Resistor load board in hard disk expansion box & \npara{3.17.1.3} & 3-70 \\[0.5em]
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Resistor load board in system box & \npara{3.9} & 3-31 \\[0.5em]
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Resistor load board in tape drive expnnsion box & \npara{3.17.2.4} & 3-81 \\[0.5em]
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RX33 floppy disk drive & \npara{3.8} & 3-24 \\[0.5em]
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System module & \npara{3.4} & 3-13 \\[0.5em]
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Tablet (VAXstation 2000 only) & \npara{3.14} & 3-52 \\[0.5em]
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Tape drive expansion box & \npara{3.17.2} & 3-72 \\[0.5em]
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Terminal disconnection from MicroVAX 2000 & \npara{3.15} & 3-53 \\[0.5em]
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TK50 tape drive in tape drive expansion box & \npara{3.17.2.2} & 3-76 \\[0.5em]
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TZK50 Controller board in tape drive expansion box & \npara{3.17.2.1} & 3-73 \\[0.5em]
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VR260 deflection board & \npara{3.12.2} & 3-39 \\[0.5em]
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VR260 monochrome monitor & \npara{3.12} & 3-35 \\[0.5em]
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VR260 power LED & \npara{3.12.7} & 3-50 \\[0.5em]
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VR260 rear bulkhead assembly & \npara{3.12.3} & 3-42 \\[0.5em]
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VR260 transformer assembly & \npara{3.12.5} & 3-45 \\[0.5em]
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VR260 video board & \npara{3.12.4} & 3-44 \\[0.5em]
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VR260 tube/yoke/bezel assembly & \npara{3.12.6} & 3-47 \\[0.5em]
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\end{tblcont}
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\newpage
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\figref{3-1} shows the locations of the FRUs as seen from the front.
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\fig{MA-0133+0150-87}{FRU Locations}
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\newpage
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\section{Shield Removal}
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\begin{enumerate}
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\item Turn the system power switch off and disconnect all cables from the
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rear of the system box.
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\item If the system is a MicroVAX 2000, remove the DEC423 converter from
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the rear of the system box.
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\item If the expansion adapter is installed, then remove the two screws shown
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in \figref{3-2} on the bottom of the expansion adapter to access the four
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screws securing the system box cover.
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\fig{MA-0069-87}{Expansion Adapter Cover Screw Locations}
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\newpage
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\item Remove the four system box cover screws shown in \figref{3-3}.
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\fig{MA-0070-87}{System Box Cover Screw Locations}
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\newpage
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\item Slide the cover off the system box as shown in \figref{3-4}.
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\fig[0.6]{MA-0071-87}{System Box Cover Removal}
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\newpage
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\item Put the system on its feet and remove the five screws shown in
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\figref{3-5} from the shield.
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\fig{MA-0072-87}{Shield Screw Locations}
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\newpage
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\item Lift the shield as shown in \figref{3-6} and rest it on the rear of the
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system.
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\fig{MA-0073-87}{Removing the Shield from the Main Chassis}
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\newpage
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\item Hold the shield with one hand and disconnect the power cable and the
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drive interconnect cable(s) from the shield with the other hand. Refer
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to \figref{3-7}.
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\fig[0.9]{MA-0074-87}{Disconnecting the Cables from the Shield}
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\item Lift the shield off the main chassis.
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\item Return to the FRU removal instructions that sent you to this procedure.
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\end{enumerate}
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\newpage
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\section{System Module Assembly Removal from Shield}
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\begin{enumerate}
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\item Remove the two screws shown in \figref{3-8} from the shield.
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\fig{MA-0075-87}{System Module Assembly Screw Locations on the Shield}
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\newpage
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\item Disconnect the two network interconnect cable9 shown in \figref{3-9}
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(if installed).
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\fig{MA-0076-87}{Network Interconnect Cables}
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\newpage
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\item Remove the system module assembly from the shield as shown in
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\figref{3-10} and lay it down beside the shield.
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\caution{Disconnection of the battery cable from the system module destroys
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all NVR memory. Be careful not to disconnect the battery cable from the system
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module until a procedure specifically instructs you to do so.}
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\fig{MA-0077-87}{Removing System Module Assembly from Shield}
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\end{enumerate}
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\newpage
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\section{System Module Removal}
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\begin{itemize}
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\item Remove the shield (\para{3.2}).
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\item Remove the system module assembly from the shield (\para{3.3}).
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\item Disconnect the battery cable from the system module. Refer to \figref{3-11}.
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\fig{MA-0078-87}{Battery Cable Location}
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\newpage
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\item Remove the memory module (if installed). Refer to \figref{3-12}. Two
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connectors disconnect as you lift the memory module.
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\fig{MA-0079-87}{Memory Module Removal}
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\item Remove the two network interconnect cables from the system module
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and install them on the new system module.
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\newpage
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\item Remove the network ID ROM shown in \figref{3-13} from the system
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module you are removing and install it on the system module you are
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installing.
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\fig{MA-0080-87}{Network ID ROM Location on System Module}
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\newpage
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\item You must set the system jumper, shown in \figref{3-14}, for either a
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VAXstation 2000 or a MicroVAX 2000. Both systems use the same
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system module and this system jumper teils the firmware whether the
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module is in a VAXstation 2000 or a MicroVAX 2000. Determine which
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system you are working on and set the jumper accordingly.
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\fig{MA-0081-87}{VAXstation 2000 and MicroVAX 2000 System Jumper}
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\item Install the new system module by reversing the above procedures.
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\end{itemize}
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\newpage
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\section{Memory Module Removal}
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\begin{enumerate}
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\item Remove the shield (\para{3.2})
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\item Remove the system module assembly from the shield (\para{3.3})
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\item Remove the memory module shown in \figref{3-15}. Two connectors
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disconnect as you lift the module.
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\fig{MA-0079-87}{Memory Module Removal}
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\item Replace the memory module by reversing the above procedures.
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\end{enumerate}
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\newpage
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\section{Network Interconnect Module Removal}
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\begin{enumerate}
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\item Remove the shield (\para{3.2})
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\item Remove the system module assembly from the shield (\para{3.3})
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\item Remove the network interconnect module from the shield as shown in \figref{3-16}.
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\fig{MA-0082-87}{Network Interconnect Module Removal}
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\item Replace the network interconnect module by reversing the above procedures.
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\end{enumerate}
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\newpage
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\section{RD53 Hard Disk Drive Removal from System Box}
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\begin{enumerate}
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\item Remove the shield (\para{3.2})
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\item Remove the three screws shown in \figref{3-17} that secure the drive to
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the chassis.
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\fig{MA-0083-87}{Hard Disk Screw Locations}
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\newpage
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\item Slide the drive out halfway and disconnect the drive interconnect cables
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and the power cable from the drive as shown in \figref{3-18}.
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\fig{MA-0125-87}{Disconnecting the Hard Disk Drive from System Box}
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\item Slide the drive out of the chassis.
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\newpage
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\item Remove two screws on each side of the drive mounting brackets shown
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in \figref{3-19}. Remove the mounting brackets and front panels from
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the drive.
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\fig[0.8]{MA-0084-87}{Drive Mounting Bracket Screw Locations}
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\item If you removed the RD53 because of an error with the drive, go to
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\para{3.7.1}.
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\item Reverse the above procedures to replace the drive.
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\end{enumerate}
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\subsection{RD53 Disk Drive Device Electronics Board Removal}
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The RD53 disk drive has an FRU inside it. It is the device electronics board.
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Always replace the device electronics board on the RD53 before you replace
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an entire RD53 disk drive.
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\begin{enumerate}
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\item If a skid plate is installed on the drive, remove the four phillips screws
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securing the skid plate and ground clip to the frame. Remove the plate
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and set aside.
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\item Loosen the two captive screws that hold the device electronics board in
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place and then disconnect the ground wire.
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\item Rotate the board upward as shown in \figref{3-20} (the board pivots in
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hinged slots at the front of the drive). Be careful not to strain any of
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the connectors or cables, and tilt the board up and back until it rests
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against the outer frame.
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\caution{Flexible cirant material is fragile and requires careful handling to
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avoid damage.}
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\fig{SHA-0134-85}{RD53 Device Electronics Board Removal}
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\item Disconnect the two connectors from under the device electronics board.
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Both connectors and cables are fragile, handle them with care.
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\item Lift the board out of the hinged slots.
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\newpage
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\item Position the jumpers and switches on the new board to the same
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Remove the shield (\para{3.2})
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position as the jumpers and switches on the old board you just removed.
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Refer to \figref{3-21}. Also be sure the new board has the resistor
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terminator pack installed.
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\fig{SHR-0126-85}{RD53 Device Electronics Board Jumper and Switch Locations}
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\item Install the replacement device eiectronics board by reversing the above procedure.
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\end{enumerate}
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\newpage
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\section{RX33 and RD32 Drive Removal (Half-Height Drives) from the System Box}
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\begin{enumerate}
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\item Remove the shield (\para{3.2})
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\item Remove the three screws shown in \figref{3-22} that hold the drive(s) to
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the chassis.
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\fig[0.8]{MA-0085-87}{Half-Height Drive(s) Screw Locations}
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\newpage
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\item Slide the drive(s) out halfway and disconnect the drive interconnect
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cable(s) and the power cable(s) from the drive(s). Refer to \figref{3-23}.
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\fig{MA-0086-87}{Disconnecting the RX33 and RD32 Half-Height Drives}
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\item Slide the drive(s) out of the chassis.
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\newpage
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\item Remove four screws on each side of the mounting brackets shown in
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\figref{3-24}. Remove the mounting brackets and front panels from the
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drive(s).
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\fig{MA-0087-87}{Half-Height Drives Mounting Brackets Removal}
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\item If you are replacing the RX33 floppy drive, install the new RX33 by
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reversing the above procedures.
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\item If you removed the RD32 because of an error with the drive, go to
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\para{3.8.1} below. Then reverse the
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above procedure to reinstall the drive.
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\end{enumerate}
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\newpage
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\subsection{RD32 Disk Drive Device Electronics Board Removal}
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The RD32 disk drive has an FRU inside it. It is the device electronics board.
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Always replace the device electronics board on the RD32 before you replace
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an entire RD32 disk drive.
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\caution{Do not remove any of the screws that secure the cover (cover/filter
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assembly) to the base casting. Removing any of the screws violates the clean area.}
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\begin{enumerate}
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\item Remove the three flat head screws shown in \figref{3-25} that hold the
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device electronics board in place under the drive unit. Besure to locate
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the one screw with the nylon washer next to the drive motor when
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replaceing the board.
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\fig{SHR-0296-86}{RD32 Device Electronics Board Screw Locations}
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\newpage
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\item Disconnect the cable from J4 (middle of board) as shown in \figref{3-26}.
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The J4 connector is not keyed and can be reconnected incorrectly. Make
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sure the violet and yellow wire in the connector is located near the LED
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and the orange and blue wires are located toward the outer edge of the
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board when reconnecting J4.
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\fig{SHA-0297-86}{Disconnecting J4 from RD32 Device Electronics Board}
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\item Stand the board up. Be careful not to strain any of the connectors or
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cables, and tilt the board over center until it rests against the outer
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frame.
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\caution{Flexible circuit material is fragile and requires careful handling to
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avoid damage.}
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\newpage
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\item Disconnect the cables from J6 and J5 as shown in \figref{3-27} from
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the device electronics board. Both connectors and cables are fragile --
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handle them with care.
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\fig{SHR-0298-86}{Disconnecting J5 and J6 from RD32 Device Electronics Board}
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\item Remove the device electronics board from the RD32.
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\newpage
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\item Position the jumper on the new board to the same position as the jumper
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on the old board you just removed (\figref{3-28}). Also be sure the new
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board has the resistor termination pack installed.
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\fig{MA-0131-87}{RD32 Device Electronics Board Jumper Location}
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\item Replace the new device electronics board by reversing the above procedures.
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\end{enumerate}
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\section{Resistor Load Board Removal from System Box}
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The resistor load board loads down the power supply in a diskless system
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or when just the RX33 floppy drive is installed in the system box. The
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power supply does not have enough of a load on it to regulate properly
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in these configurations. The load board simulates the drives by drawing
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enough power to regulate the power supply. You must remove the load
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board whenever a hard disk drive is installed in the system box.
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The resistor load board in the system box is different from the resistor load
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board in the expansion boxes. The part number of the resistor load board in
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the system box must be 5417163-02. The -01 version goes in the expansion
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boxes.
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\begin{enumerate}
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\item Remove the shield (\para{3.2}).
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\item Remove the three screws shown in \figref{3-29} that secure the drive
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mounting bracket to the chassis.
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\item Disconnect the power cable from the resistor load board.
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\item Lift the load board up and out of the chassis.
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\item If you are removing the load board to install a drive, remove and
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discard the standoffs that the load board sat on, then install the drive by
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reversing the removal instructions for that drive. Otherwise, install the
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new load board (p/n 5417163-02) by reversing the above procedures.
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\end{enumerate}
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\newpage
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\fig{MA-0118-87}{Drive Mounting Bracket Screw Locations}
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\newpage
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\section{Battery Pack Removal}
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\begin{enumerate}
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\item Remove the shield (\para{3.2})
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\item Remove the system module assembly from the shield (\para{3.3})
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\item Disconnect the battery cable from the system module.
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\fig{MA-0078-87}{Battery Cable Location}
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\item Take the battery pack out of its holder.
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\item Replace the battery pack by reversing the above procedures.
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\note{A new battery needs a minimttm of 25 hours of continous power on to
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fully charge the battery. If the battery's charge is low, you will see an error for
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the NVR when you power up the system.}
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\end{enumerate}
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\newpage
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\section{Power Supply Removal from the System Box}
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\begin{enumerate}
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\item Remove the shield (\para{3.2}).
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\item Disconnect the power cables from the rear of the drives. If you need
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more room behind the drives, remove the three drive mounting screws
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and slide the drives out part way.
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\item Put the system on its side and remove the four screws shown in
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\figref{3-31} that hold the power supply to the bottom of the chassis.
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\fig{MA-0127-87}{Power Supply Screw Locations in the System Box}
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\newpage
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\item Slide the power supply out of the chassis.
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\item Replace the power supply by reversing the above procedures.
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\end{enumerate}
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\section{VAXstation 2000 VR260 Monochrome Monitor}
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You may need the following tools to repair the VR260 Monitor.
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\begin{itemize}
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\item Phillips screwdriver
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\item Slotted screwdriver
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\item High-voltage discharge tool (p/n 29-24717)
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\end{itemize}
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\figref{3-32} shows the FRUs in the VR260 monitor.
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\fig{MA-0088-87}{VR260 FRU Locations}
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\newpage
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\subsection{VR260 Cover}
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\begin{enumerate}
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\item Switch the monitor power switch off.
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\item Disconnect the power cord and video cable from the monitor. Refer to \figref{3-33}.
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\fig{MA-7557-80}{VR260 Controls and Video Cable Locations}
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\item Carefully place the monitor on its face.
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\item Loosen the four rubber feet on the bottom.
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\item Slide the tilt-swivel base up and off the monitor.
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\item Finish unscrewing the four rubber feet and remove them from the monitor.
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\newpage
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\item Remove the four phillips cover screws shown in \figref{3-34} from the rear of the monitor.
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\fig{MA-0089-87}{VR260 Cover Screw Locations}
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\item Lift the cover off.
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\newpage
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\item Lift the bezel off. Refer to \figref{3-35}.
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\fig{MA-0090-87}{VR260 Rear Bezel Location}
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\item Place the monitor back down to its normal position.
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\item Reverse the above procedures to replace the cover.
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\end{enumerate}
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