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\chapter{Systems Introduction}
\section{The VAXstation 2000 and MicroVAX 2000 Systems}
\pagestyle{main}
\pagenumbering{arabic}
\setcounter{page}{1}
The VAXstation 2000 and MicroVAX 2000 systems are mechanically
identical. Both come in the same style box, both use the same drives,
and both use the same mass storage expansion boxes. Also, both use
the same diagnostic tools for troubleshooting and repair. Once familiar
with troubleshooting one system, you'll be able to troubleshoot the other
if necessary. One major difference is the VAXstation 2000 is a single-user
system and the MicroVAX 2000 is a multiuser system. Another difference
is the VAXstation 2000 uses a video monitor while the MicroVAX 2000 uses
video terminals.
Both the VAXstation 2000 and the MicroVAX 2000 have three main pieces
of hardware. They are the System box, the hard disk expansion box, and
the tape drive expansion box. The System box can have a half-height RX33
floppy disk drive, a half-height RD32 hard disk drive, or both the RX33 and
the RD32. A full-height RD53 hard disk drive can be substituted for the
half-height drives in the System box. The hard disk expansion box comes with a
full-height RD53 hard disk drive. The tape drive expansion box comes with
a TK50 tape drive.
\newpage
\hyperref[figure:1-1]{Figure 1-1} shows the front of the VAXstation 2000 and MicroVAX 2000
systems. There are three ways to differentiate between the two systems:
the medallion next to the power switch on the front, the DEC423 converter
on the back, or the system jumper position on the system module inside
the box.
\fig{MA-0063-87}{Front View of the VAXstation 2000 and MicroVAX 2000 Systems}
\label{figure:1-1}
\newpage
\hyperref[figure:1-2]{Figure 1-2} shows the rear view of the VAXstation 2000 and labels each
connector. A modem or a terminal can be connected to the 25-pin
communication port. A VR260 monochrome monitor can be connected to the
15-pin video port. A printer can be connected to the 9-pin printer port. The
ThinWire Ethernet port Supports IEEE 802.3 (Standard Ethernet) network
communications connections over the ThinWire Ethernet cable.
\fig{MA-0132-87}{Rear View of the VAXstation 2000 System}
\label{figure:1-2}
\newpage
\hyperref[figure:1-3]{Figure 1-3} shows the rear view of the MicroVAX 2000 and labels each
connector. Like the VAXstation 2000, the MicroVAX 2000 supports a modem
or a terminal on the 25-pin communication port. The MicroVAX 2000
supports the DECconnect strategy which uses the modified modular jack (MMJ)
6-conductor telephone type cable (DEC423 asynchronous protocol) for
connection to the terminals. The DEC423 Converter changes the 15-pin video
port and the 9-pin printer port (RS232 protocol) to three MMJ communication
ports. Port 1 on the DEC423 Converter is reserved for the console
terminal. Ports 2 and 3 can have either a terminal or a printer attached to
them. The operating system Software configures each port for either a terminal
or a printer. The ThinWire Ethernet port supports IEEE 802.3 (Standard
Ethernet) network communications connections over the ThinWire Ethernet
cable.
\fig{MA-0134-87}{Rear View of the MicroVAX 2000 System}
\label{figure:1-3}
\section{Mass Storage Expansion Box for Both Systems}
Additional mass storage devices are contained in expansion boxes that look
very similar to the system box. \hyperref[figure:1-4]{Figures 1-4} and \hyperref[figure:1-5]{1-5} show the front view of
the expansion boxes.
The hard disk expansion box contains an RD53 or RD54 hard disk drive.
The tape drive expansion box contains a TK50 tape drive and a controller
board. Each expansion box contains a power supply, a resistor load board
(to regulate the power supply), and the drive.
\fig{MA-0065-87}{Front View of the Hard Disk Expansion Box}
\label{figure:1-4}
\newpage
\fig{MA-0064-87}{Front View of the Tape Drive Expansion Box}
\label{figure:1-5}
\newpage
Both expansion boxes connect to the system box through an expansion
adapter that attaches to the bottom of the system box. The expansion
adapter has three connectors on the back labeled ports A, B, and C. Port
A connects the tape expansion box to the system. Port B connects the hard
disk expansion box to the system. Port C is reserved for future options.
\hyperref[figure:1-6]{Figure 1-6} shows the back of a MicroVAX 2000 system box with an expansion
adapter.
\fig{MA-0135-87}{System Box with Expansion Adapter}
\label{figure:1-6}
\newpage
\section{Options}
\subsection{Internal Memory Options}
Two additional memory modules are available for both systems. One is a
2-megabyte memory module and the other is a 4-megabyte memory module.
The memory module is located in the system box and is connected directly
to the system module.
\subsection{ThinWire Ethernet Option on MicroVAX 2000}
ThinWire Ethernet is an option on the MicroVAX 2000. It comes standard
on the VAXstation 2000. It adds the capability of connecting the system to
the DECnet through the ThinWire Ethernet network. The option consists
of a network interconnect module that is located in the system box and is
connected to the system module through two 40-conductor cables.
\section{FRU Locations}
\hyperref[figure:1-7]{Figure 1-7} shows the locations of the FRUs in the system box. Figure 1-8
shows the locations of the FRUs in the expansion boxes.
\fig{MA-0150-87}{FRU Locations in the System Box}
\label{figure:1-7}
\newpage
\fig{MA-0133-87}{FRU Locations in the Expansion Boxes}
\label{figure:1-7}

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\chapter{Testing and Troubleshooting}
\setcounter{page}{1}
\section{Introduction}
This chapter describes how to test and troubleshoot the VAXstation 2000
and the MicroVAX 2000 systems. Differences between the VAXstation 2000
and the MicroVAX 2000 are specifically identified in the text.
This chapter contains the following sections.
\begin{itemize}
\item How to use console mode: determining the console device, enter
ing console mode, exiting console mode, utilizing the diagnostic
console device, and where to find a list of the console commands.
\item How to run the diagnostic tests and interpret the error codes for
each test: power-up tests, self-test, and system exerciser.
\item How to troubleshoot all devices in the system.
\item How to use the utilities.
\end{itemize}
\section{Using Console Mode}
The VAXstation 2000 and the MicroVAX 2000 systems have two modes
of operation: program mode and console mode. Normal operation of the
VAXstation 2000 and the MicroVAX 2000 is in program mode, that is, with
the operating system controlling the system. Console mode allows the user
to control the system from the console terminal using the console com
mands described in \hyperlink{appendix.b}{Appendix B}. Console mode is contained in ROM on
the system module.
Testing is done while in console mode. The System returns the \console
prompt when it is in console mode. \hyperref[table:2-1]{Table 2-1} lists the prompts and the
mode of operation each prompt represents.
\begin{table}[H]
\caption{Prompts}
\label{table:2-1}
\begin{tabularx}{\textwidth}{c l}
\hline
\textbf{Prompt} & \textbf{Mode of operation}\\
\hline
{>}{>}{>} & Console mode. Console commands are listed in \hyperlink{appendix.b}{Appendix B}. \\
\$ & Program mode (VMS operating system) \\
\% & Program mode (Ultrix operating system) \\
\hline
\end{tabularx}
\end{table}
\subsection{Determining the Console Device}
The console device for a VAXstation 2000 system is the keyboard (LK201)
and monitor (VR260) connected to the video port. The keyboard inputs
commands at 4800 baud and the monitor displays output from the video
circuits.
The console device for a MicroVAX 2000 system is the terminal (VT220 or
similar terminal) connected to connector 1 on the DEC423 converter. The
terminal operates at 9600 baud.
\subsection{Entering Console Mode}
Console mode is entered any time the CPU halts. The CPU can be halted
automatically or manually. A halt means that CPU control has passed
control from the operating system to the console mode program in ROM. If
the system halts the CPU, then the console mode program checks the
nonvolatile RAM (NVR) for user-defined instructions on how to handle the halt.
If you manually halt the CPU, the system enters console mode program
immediately without checking the NVR for instructions.
You can manually halt the CPU and enter console mode by one of the
following methods.
\begin{itemize}
\item HALT button -- Press the halt button. It is located next to the printer port
on the back of the System box. The \console prompt is displayed when
ready for console commands.
\item BREAK key -- Press the BREAK key on the diagnostic console device
that is connected to the printer port with the BCC08 cable. The \console
prompt is displayed when ready for console commands.
\end{itemize}
The system automatically halts the CPU for the following reasons.
\begin{itemize}
\item After power-up testing -- If the default recovery action is halt, the system
automatically halts the CPU and enters console mode after power-up
tests are complete. See Section 2.5.4 for information on setting the
default recovery actions.
\item For a boot failure -- If the system fails to boot properly, the system
automatically halts the CPU and enters console mode. See Section 2.5.2
for information on setting the default boot device.
\item On a system error -- If the CPU detects a severe corruption of its oper-
ating environment, it halts and reads the default recovery action in the
NVR. The default recovery action can be restart, boot, or halt. When
it is restart and the restart fails, then the system automatically tries to
boot the operating system software. If the boot fails, the CPU halts and
enters console mode. When the default recovery action is boot and the
boot fails, the CPU halts and enters console mode. When the default re
covery action is halt, the CPU unconditionally halts and enters console
mode.
\end{itemize}
One other way to halt the CPU is when the operating system software
executes a halt instruction. The CPU then reads the default recovery action in
the NVR and acts on it as described above.
\subsection{Exiting Console Mode}
Console mode is exited by typing one of the following console commands.
\begin{itemize}
\item BOOT -- This command initializes the CPU and boots the operating
system software from the device specified. If no device is specified, the
system searches each on-line device until the operating system software
|s found. The boot command starts the system similar to when power
is turned on except that the power-up tests are not run. If the system
attempts to boot over the net (ESA0) and no software is available on
another node, the system keeps looking for the software indefinitely.
If a boot message for the operating system software does not appear
shortly after the Ethernet boot message (ESA0) is displayed, then you
must press the halt button to abort the Ethernet boot. If you still need
to boot over the Ethernet, make sure the node with the operating sys-
tem software is operating normally and the software is loaded. Run the
Ethernet loopback Utility (TEST 90) to check the networking capability
of the system if the Ethernet boot continues to fail.
When a boot is invoked using this boot command, you can specify
several boot command flags by bit encoding the flags in a flag word
specified with the /R5: qualifier. These command flags are listed in
Paragraph 2.5.3.
\item CONTINUE -- This command instructs the CPU to continue the
operating system software at the address contained in the program counter
(PC). This command starts up the operating software where it was halted
provided no console test commands were run. Running a test command
alters the PC and memory so that the operating system software cannot
be started properly by entering the continue command. If a test com-
mand was entered, use the boot command to start the operating system
software. The continue command is similar to the start command. The
start command can specify the address to Start the operating software
and the continue command has the operating software continue where
it left off.
\item START -- This command Starts the operating System Software at a
specified address. If no address is given, the contents of the PC are used.
However, running a test command alters the PC and memory so that the
operating system software cannot be started properly by entering the
start command. If a test command was entered, use the boot command
to start the operating system software.
\end{itemize}
\subsection{Diagnostic Console Device}
There is a diagnostic console device available on the VAXstation 2000. The
MicroVAX 2000 can use this device if the DEC423 Converter is removed.
The diagnostic console device can be utilized by connecting a terminal (such
as the VT100 or VT220) to the printer port with the special BCC08 cable.
The terminal operates at 9600 baud. Field service technicians can use this
terminal as a diagnostic tool to isolate a problem in the normal console
device.
To use this diagnostic console device you must turn off power, connect the
BCC08 cable to the printer port and terminal, and then turn power back on.
The diagnostic console device now controls the system. The normal console
monitor displays video test patterns on the VAXstation 2000 when the video
circuits are tested. The normal console keyboard does not operate.
\subsection{Console Commands}
Console commands are listed in \hyperlink{appendix.b}{Appendix B}.
\newpage
\section{Testing}
Testing procedures on the VAXstation 2000 and the MicroVAX 2000 systems
are almost identical. The differences between the systems are explained
where applicable. All diagnostic tests are ROM-based and testine is done
while in console mode. Tests are executed in either of two ways:
\begin{itemize}
\item Automatically -- When power is turned on the power-up tests begin.
\item Manually -- By entering one of the console test commands on the
console terminal. See \hyperlink{appendix.a}{Appendix A} for a complete listing of the test commands.
\end{itemize}
\subsection{Power-up Tests}
Power-up tests run each time the system power is turned on. Power-up
testing consists of a sequence of tests executed for each device installed in
the system. The test number of each device is listed on the power-up screen
display as the device is tested. Figure 2-1 shows an example of the power-
up screen display. The first line indicates the CPU name (KA410-A) and the
ROM version (V1.0). The test numbers are listed next in descending order
from the first test, F, to the final test, 1. TEST F will have an underscore
after it on the MicroVAX 2000 to indicate that TEST F was not run. Note in
Figure 2-1 that tests 4, 3, 2, and 1 have an underscore (\_) immediately after
them. This underscore indicates that there is no option device installed for
that test; thus, no tests are done. TEST F has an underscore after it on the
MicroVAX 2000 systems because the monochrome video circuits are not
used by the MicroVAX 2000. No other test numbers can have underscores
after them. An asterisk (*) after TESTS 4 through 1 indicate that an option is
installed, but its ROM is destroyed and the Option device must be replaced.
Only TESTS 1 through 4 can have an asterisk after them. Figure 2-2 lists
the symbols that can appear in between the tests and what they indicate.
\begin{figure}[H]
\caption{Example of Power-up Tests Screen Display}
\begin{verbatim}
KA410-A V1.0
F...E...D...C...B...A...9...8...7...6...5...4_..3_..2_..1_..
\end{verbatim}
\end{figure}
Figure 2-2 lists the definitions of the symbols that appear between the test
numbers in the power-up test countdown.
\begin{figure}[H]
\caption{Power-up Symbols Defined}
\begin{verbatim}
... Device tested successfully or has a soft error
?.. Device has a hard error
_.. Device not installed or not tested
*.. Device installed but its ROM is destroyed
\end{verbatim}
\end{figure}
\label{figure:2-1}
If any hard errors (errors that indicate the device must be replaced for
proper operation) are found during power-up testing, a question mark is
placed after the failing test number during the countdown sequence. An
error summary of all errors detected is listed after the power-up sequence
is complete. Two question marks in the error summary indicate a hard error.
Error codes that indicate the status or soft errors do not put a question mark
after the failing test number in the sequence, but do list the error code in the
error summary. Figure 2-3 shows the power-up screen display with a hard
error found in TEST F and a soft error found in TEST E. The error summary
for each failed device is displayed before the boot sequence is started.
However, the screen usually scrolls so fast when the system starts to boot
that you may not be able to see what the error summary contained (if there
was an error summary). To see what errors the power-up tests found, press
the halt button and enter TEST 50 on the console terminal. TEST 50 is the
command for bringing up the configuration table. The configuration table
is created during power-up testing. This configuration table contains all of
the error codes listed in the power-up error summary as well as error codes
for all devices installed in the system. The error codes in the configuration
table are updated every time self-test is run. See Paragraph 2.5.1 for an
explanation of how to use the configuration table.
Each error summary consists of one or two question marks, a test number,
the ID number of the failed device, and an eight-digit error code. For ex-
ample, in Figure 2-3, the first line of the error summary shows a hard error
for TEST F, a device ID number of 00B0, and an error code of 0001.F002.
The second line shows a soft error for TEST E, a device ID of 0040, and an
error code of 0000.0005. Section ( 2.3.1.1) describes the error codes.
\newpage
\begin{figure}[H]
\caption{Example of Power-up Tests Screen Display with Errors.}
\begin{verbatim}
KA410-A V1.0
F?..E...0...C...B...A...9...8...7...6...5...4_..3_..2_..1_..
?? F 00B0 0001.F002
? E 0040 0000.0006
\end{verbatim}
\end{figure}
\label{figure:2-2}
If there is a fatal error in the NVR during power-up testing, the system stops
testing the other devices and displays ?14 TOY ERR on the screen. When
this happens, the only way to determine the cause of the problem is by
viewing the LEDs on the keyboard. One of the LEDs will be lit to indicate
the failing module. \hyperref[table:2-2]{Table 2-2} lists the LEDs and which module has failed.
\begin{table}
\label{table:2-2}
\caption{Keyboard LEDs Deflned}
\begin{tabularx}{\textwidth}{l l}
\hline
\textbf{Keyboard LED} & \textbf{Failing module}\\
\hline
Hold Screen & System module \\
Lock & Not used \\
Compose & ThinWire Ethernet option module \\
Wait & Not used \\
\hline
\end{tabularx}
\end{table}
Once power-up testing is complete and no fatal or hard errors are found, the
system boots the operating system software. Both the VAXstation 2000 and
the MicroVAX 2000 boot the operating system software the same. The only
difference between the two is that the VAXstation 2000 clears the console
screen before it boots and the MicroVAX 2000 does not. If a default boot
device is loaded in the NVR, the system boots off of that device. If no
default device is loaded in the NVR, the system searches every on-line
storage drive for the operating software. DUA2 is searched first if a floppy
diskette is loaded. Otherwise, it is not searched at all. The hard disks are
searched next, DUA0 then DUAl. MUA0, the tape drive, is checked after
the hard disk drives if it is installed and a cartridge is loaded. Finally, the
system searches the Ethernet network for the software and ESA0 is listed
on the screen. The system continues to search the Ethernet network until
the operating system software is found.
\newpage
\subsubsection{Power-up Test Error Codes}
The power-up test error codes indicate status and/or error information. Any
errors found by power-up tests are listed in the error summary after the
power-up test countdown sequence. This summary, if any, gives you a brief
summary of the errors. \hyperref[table:2-3]{Table 2-3} lists the test numbers and the devices that
are tested during that particular test. To look at the complete list of devices
and the status of that device, you must display the configuration table. The
configuration table lists every device in the system and also lists the results
of the self-test and power-up tests and is updated each time self-test is run.
The error codes for each device in the configuration table are explained in
the troubleshooting section for that individual device. Remember that the
configuration table contains the results of the self-test and power-up tests
and not the results of the system exerciser. Figure 2-4 shows an example
of the configuration table and for an explanation of the configuration table,
see Paragraph 2.5.1.
\begin{figure}[H]
\caption{Example of the Configuration Table}
\begin{verbatim}
>>> TEST 50
KA410-A V1.0
ID 08-00-2B-02-CF-A4
?? MONO 0001.F002
? CLK 0000.0005
NVR 0000.0001
DZ 0000.0001
00000001 00000001 00000001 00000001 00000001 000012A0
MEM 0002.0001
00200000
MM 0000.0001
FP 0000.0001
IT 0000.0001
HDC 1710.0001
000146B8 00000000 00000320
TPC 0202.0001
FFFFFF03 01000001 FFFFFF06 FFFFFF05 FFFFFF05 FFFFFF05 ...
SYS 0000.0001
NI 0000.0001 V1.0
>>>
\end{verbatim}
\end{figure}
\label{figure:2-3}
The most common good error code is 0000.0001. There are, however, some
devices that use the first four digits in the error code to indicate the status
of the device and the last four digits to indicate the error found on the
device. The memory (MEM) error code, for instance, contains 0002.0001
which indicates two megabytes of memory is available (0002.) and no error
found (.0001). On devices like these, the last four digits always indicate
.0001 as a good (non-error) indication.
Some error codes indicate no error at all and give a status of the device
such as the clock (CLK) which shows that the date and time has not been
set. This is not an error, just a status of the clock circuits.
Any error code other than 0000.0001 on the MONO, MM, FP, IT, or SYS
devices indicates a hard error and that device must be replaced for proper
operation of the system. The other devices such as CLK, NVR, DZ, MEM,
HDC, TPC, and NI may have a status or a soft error message in the error
codes and may still operate normally.
See the troubleshooting procedures section (Paragraph 2.4) for each device
to determine whether or not the error code indicates a fault or a status for
the device.
\subsection{Self-test}
Self-test allows you to test every device again individually, a few at a time,
or all of them sequentially just like power-up tests. To individually test a
device, enter TEST \# where \# is the test number of the device you want
tested. \hyperref[table:2-3]{Table 2-3} lists the test numbers and the devices tested by those
numbers. Figure 2-5 shows an example of running self-test successfully on
the disk controller.
\begin{figure}[H]
\caption{Example of Running Self-test on the Disk Controller}
\begin{verbatim}
>>> TEST 7
7...
>>>
\end{verbatim}
\end{figure}
\label{figure:2-4}
To test a group of devices, enter TEST followed by the test number of the
first device to be tested and then the test number of the last device to be
tested. Figure 2-6 shows an example of testing a group of devices. In Figure
2-6, all tests between C and 4 are tested successfully. Note that you cannot
pick and choose which devices to test between C and 4, all tests between
C and 4 are tested when entered as a group.
\begin{figure}[H]
\caption{Example of Running a Series of Self-tests}
\begin{verbatim}
>>> TEST C 4
C...B...A...9...8...7...6...5...4_..
>>>
\end{verbatim}
\end{figure}
\label{figure:2-5}
To test all devices, enter TEST F 1. The MicroVAX 2000 skips over the
MONO video test (TEST F) since it does not use the video circuits.
\begin{table}[H]
\caption{Self-test Commands}
\label{table:2-3}
\begin{tabularx}{\textwidth}{p{2cm} p{8cm}}
\hline
\raggedright\textbf{Test\newline Number} & \textbf{Device\newline Tested} \\
\hline
1 & Option module (Network Interconnect module) (NI) \\
2 & Option module (not available) \\
3 & Option module (not available) \\
4 & Option module (not available) \\
5 & Interrupt Controller and ThinWire Ethernet ID ROM (SYS) \\
6 & Tape Controller. (TPC) \\
7 & Disk conroller. (HDC) \\
8 & Interval timer. (IT) \\
9 & Floating point unit. (FP) \\
A & Memory management unit. (MM) \\
B & Memory. (MEM) \\
C & DZ Controller. (DZ) \\
D & Non-volatile RAM. (NVR) \\
E & Time-of-year dock. (CLK) \\
F & Base video (MONO) (VAXstation 2000 only) \\
\hline
\end{tabularx}
\end{table}
\subsubsection{Self-test with Loopback Connectors}
Customer mode self-test does not test the drivers or the lines of the serial
line conroller (DZ) since loopbacks are not used. Run self-test in field
service mode to test the DZ drivers by installing the loopback connectors on
the back of the System. Follow one of the procedures below.
To test the DZ on VAXstation 2000, install a loopback (p/n 29-24795) on
the 25-pin communication port and a loopback (p/n 29-24794) on the 9-pin
printer port. Run TEST C. You cannot use loopback connectors if you are
using the diagnostic console device with the BCC08 cable on the printer
port since there is no loopback connector for the video port.
To test the DZ on MicroVAX 2000, install a loopback (p/n 29-24795) on the
25-pin communication port and install an MMJ loopback on both ports 2
and 3. Run TEST C.
\textbf{NOTE:} \textit{The ThinWire Ethernet port on the back of the
system box must be terminated properly when running diagnostics on the
network option (TEST 1) othetwise an error code of 0000.7001 or greater
is listed in the configuration table.}
\subsubsection{Self-test Error Codes}
Figure 2-7 shows how an error is displayed if found during self-test. This
example shows an error on the disk controller during self-test. The 84 FAIL
indicates an error was found on the device tested. You must display the
configuration table (TEST 50) after self-test is complete to see the error code,
if there is an error during self-test, since the error codes do not appear on
the screen. The configuration table lists every device in the system, fists the
results of the self-test and power-up tests, and is updated each time self-test
is run. The error codes for each device in the configuration table are
explained in the troubleshooting section for that individual device. Remember
that the configuration table contains the results of the self-test and power-up
tests and not the results of the system exerciser. See Paragraph 2 5 1 for an
explanation of the configuration table.
\begin{figure}[H]
\caption{Example of a Self-test Error on the Disk Controller}
\begin{verbatim}
>>> TEST 7
7?..
84 FAIL
>>>
\end{verbatim}
\end{figure}
\label{figure:2-6}
(You must display the configuration table to see the error code)

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\maketitle
\toc
\newpage
\pagestyle{preface}
\subsubsection*{ABOUT THIS BOOK}
This book describes how to troubleshoot, adjust, and repair the VAXstation
2000 and the MicroVAX 2000 Workstation to the field replaceable unit (FRU)
level in the field. It covers all FRU options presently available for these two
Systems.
\begin{itemize}
\item \hyperlink{chapter.1}{Chapter 1} contains a System overview that outlines the components of the VAXstation 2000 and MicroVAX 2000 Systems.
\item \hyperlink{chapter.2}{Chapter 2} contains testing and troubleshooting procedures to help iso-
late the problem to an FRU.
\item \hyperlink{chapter.3}{Chapter 3} contains FRU removal and replacement procedures.
\item \hyperlink{chapter.4}{Chapter 4} contains video monitor adjustment procedures for the VAX station 2000 monitor.
\item \hyperlink{chapter.5}{Chapter 5} contains installation instructions for each option available on both the VAXstation 2000 and the MicroVAX 2000.
\item \hyperlink{appendix.a}{Appendix A} contains a list of the test commands.
\item \hyperlink{appendix.b}{Appendix B} contains a complete listing and definitions of the console commands.
\item \hyperlink{appendix.c}{Appendix C} contains a complete listing and definitions of the console messages.
\item \hyperlink{appendix.d}{Appendix D} contains a complete listing and definitions of the VMB boot error Status codes.
\end{itemize}
The detailed \hyperlink{sec:index}{index} and \hyperlink{sec:glossary}{glossary} also help you find Information.
\textbf{Notes, Cautions, and Warnings}
Notes, cautions, and warnings appear throughout this book.
\begin{itemize}
\item Notes contain general, supplemental Information about a topic.
\item Cautions contain information to prevent damage to equipment.
\item Warnings contain information to prevent personal injury.
\end{itemize}
\newpage
\subsubsection*{REFERENCE MANUALS}
\begin{tabularx}{\textwidth}{l l}
\hline
\textbf{Manual} & \textbf{Order Number} \\
\hline
VAXstation 2000 Hardware Installation Guide & EK-VAXAA-IN \\
VAXstation 2000 Owner's Manual & EK-VAXAA-OM \\
VAXstation 2000/MicroVAX 2000 Technical Manual & EK-VTTAA-TM \\
MicroVAX 2000 Hardware Installation Guide & EK-MVXAA-IN \\
MicroVAX 2000 Owner's Manual & EK-MVXAA-OM \\
VR290 Service Guide & EK-VR290-SM \\
VAXstation 2000, MicroVAX 2000, VAXmate Network Guide & EK-NETAA-UG \\
RD53 Technical Description Manual & EK-RD53A-TD \\
RX33 Technical Description Manual & EK-RX33T-TM \\
TZK50/SCSI Controller Technical Manual & EK-TZK50-TM \\
\hline
\end{tabularx}
\subsubsection*{TOOLS AND MATERIALS}
You will need the following tools and materials to service the VAXstation
2000 and MicroVAX 2000 Systems.
\begin{itemize}
\item Field Service Tool Kits
50 Hz Tool Kit p/n 29-23270-00\\
60 Hz Tool Kit p/n 29-23268-00
\item VR260 Video Monitor Tools
Metric Measuring Tape p/n 29-25342-00\\
High-Voltage Anode Discharge Tool p/n 29-24717-00
\item ThinWire Ethernet Tools
Face Plate Installation Kit p/n H8242
\end{itemize}

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\titlepicture{titles/EK-VSTAA-MG-001}
\begin{document}
\maketitle
\toc
\newpage
\pagestyle{preface}
\subsubsection*{ABOUT THIS BOOK}
This book describes how to troubleshoot, adjust, and repair the VAXstation
2000 and the MicroVAX 2000 Workstation to the field replaceable unit (FRU)
level in the field. It covers all FRU options presently available for these two
Systems.
\begin{itemize}
\item Chapter 1 contains a System overview that outlines the components of
the VAXstation 2000 and MicroVAX 2000 Systems.
\item Chapter 2 contains testing and troubleshooting procedures to help iso-
late the problem to an FRU.
\item Chapter 3 contains FRU removal and replacement procedures.
\item Chapter 4 contains video monitor adjustment procedures for the VAX
station 2000 monitor.
\item Chapter 5 contains installation instructions for each option available on
both the VAXstation 2000 and the MicroVAX 2000.
\item Appendix A contains a list of the test commands.
\item Appendix B contains a complete listing and definitions of the console
commands.
\item Appendix C contains a complete listing and definitions of the console
messages.
\item Appendix D contains a complete listing and definitions of the VMB boot
error Status codes.
\end{itemize}
The detailed index and glossary also help you find Information.
\textbf{Notes, Cautions, and Warnings}
Notes, cautions, and warnings appear throughout this book.
\begin{itemize}
\item Notes contain general, supplemental Information about a topic.
\item Cautions contain information to prevent damage to equipment.
\item Warnings contain information to prevent personal injury.
\end{itemize}
\newpage
\subsubsection*{REFERENCE MANUALS}
\begin{tabularx}{\textwidth}{l l}
\hline
\textbf{Manual} & \textbf{Order Number} \\
\hline
VAXstation 2000 Hardware Installation Guide & EK-VAXAA-IN \\
VAXstation 2000 Owner's Manual & EK-VAXAA-OM \\
VAXstation 2000/MicroVAX 2000 Technical Manual & EK-VTTAA-TM \\
MicroVAX 2000 Hardware Installation Guide & EK-MVXAA-IN \\
MicroVAX 2000 Owner's Manual & EK-MVXAA-OM \\
VR290 Service Guide & EK-VR290-SM \\
VAXstation 2000, MicroVAX 2000, VAXmate Network Guide & EK-NETAA-UG \\
RD53 Technical Description Manual & EK-RD53A-TD \\
RX33 Technical Description Manual & EK-RX33T-TM \\
TZK50/SCSI Controller Technical Manual & EK-TZK50-TM \\
\hline
\end{tabularx}
\subsubsection*{TOOLS AND MATERIALS}
You will need the following tools and materials to service the VAXstation
2000 and MicroVAX 2000 Systems.
\begin{itemize}
\item Field Service Tool Kits
50 Hz Tool Kit p/n 29-23270-00\\
60 Hz Tool Kit p/n 29-23268-00
\item VR260 Video Monitor Tools
Metric Measuring Tape p/n 29-25342-00\\
High-Voltage Anode Discharge Tool p/n 29-24717-00
\item ThinWire Ethernet Tools
Face Plate Installation Kit p/n H8242
\end{itemize}
\newpage
\pagestyle{main}
\chapter{Systems Introduction}
\section{The VAXstation 2000 and MicroVAX 2000 Systems}
The VAXstation 2000 and MicroVAX 2000 systems are mechanically
identical. Both come in the same style box, both use the same drives,
and both use the same mass storage expansion boxes. Also, both use
the same diagnostic tools for troubleshooting and repair. Once familiar
with troubleshooting one system, you'll be able to troubleshoot the other
if necessary. One major difference is the VAXstation 2000 is a single-user
system and the MicroVAX 2000 is a multiuser system. Another difference
is the VAXstation 2000 uses a video monitor while the MicroVAX 2000 uses
video terminals.
Both the VAXstation 2000 and the MicroVAX 2000 have three main pieces
of hardware. They are the System box, the hard disk expansion box, and
the tape drive expansion box. The System box can have a half-height RX33
floppy disk drive, a half-height RD32 hard disk drive, or both the RX33 and
the RD32. A full-height RD53 hard disk drive can be substituted for the
half-height drives in the System box. The hard disk expansion box comes with a
full-height RD53 hard disk drive. The tape drive expansion box comes with
a TK50 tape drive.
\newpage
Figure 1-1 shows the front of the VAXstation 2000 and MicroVAX 2000
systems. There are three ways to differentiate between the two systems:
the medallion next to the power switch on the front, the DEC423 converter
on the back, or the system jumper position on the system module inside
the box.
\fig{MA-0063-87}{Front View of the VAXstation 2000 and MicroVAX 2000
Systems}
\newpage
Figure 1-2 shows the rear view of the VAXstation 2000 and labels each
connector. A modem or a terminal can be connected to the 25-pin
communication port. A VR260 monochrome monitor can be connected to the
15-pin video port. A printer can be connected to the 9-pin printer port. The
ThinWire Ethernet port Supports IEEE 802.3 (Standard Ethernet) network
communications connections over the ThinWire Ethernet cable.
\fig{MA-0132-87}{Rear View of the VAXstation 2000 System}
\newpage
Figure 1-3 shows the rear view of the MicroVAX 2000 and labels each
connector. Like the VAXstation 2000, the MicroVAX 2000 supports a modem
or a terminal on the 25-pin communication port. The MicroVAX 2000
supports the DECconnect strategy which uses the modified modular jack (MMJ)
6-conductor telephone type cable (DEC423 asynchronous protocol) for
connection to the terminals. The DEC423 Converter changes the 15-pin video
port and the 9-pin printer port (RS232 protocol) to three MMJ communication
ports. Port 1 on the DEC423 Converter is reserved for the console
terminal. Ports 2 and 3 can have either a terminal or a printer attached to
them. The operating system Software configures each port for either a terminal
or a printer. The ThinWire Ethernet port supports IEEE 802.3 (Standard
Ethernet) network communications connections over the ThinWire Ethernet
cable.
\fig{MA-0134-87}{Rear View of the MicroVAX 2000 System}
\section{Mass Storage Expansion Box for Both Systems}
Additional mass storage devices are contained in expansion boxes that look
very similar to the system box. Figures 1-4 and 1-5 show the front view of
the expansion boxes.
The hard disk expansion box contains an RD53 or RD54 hard disk drive.
The tape drive expansion box contains a TK50 tape drive and a controller
board. Each expansion box contains a power supply, a resistor load board
(to regulate the power supply), and the drive.
\fig{MA-0065-87}{Front View of the Hard Disk Expansion Box}
\newpage
\fig{MA-0064-87}{Front View of the Tape Drive Expansion Box}
\newpage
Both expansion boxes connect to the system box through an expansion
adapter that attaches to the bottom of the system box. The expansion
adapter has three connectors on the back labeled ports A, B, and C. Port
A connects the tape expansion box to the system. Port B connects the hard
disk expansion box to the system. Port C is reserved for future options.
Figure 1-6 shows the back of a MicroVAX 2000 system box with an expansion
adapter.
\fig{MA-0135-87}{System Box with Expansion Adapter}
\newpage
\section{Options}
\subsection{Internal Memory Options}
Two additional memory modules are available for both systems. One is a
2-megabyte memory module and the other is a 4-megabyte memory module.
The memory module is located in the system box and is connected directly
to the system module.
\subsection{ThinWire Ethernet Option on MicroVAX 2000}
ThinWire Ethernet is an option on the MicroVAX 2000. It comes standard
on the VAXstation 2000. It adds the capability of connecting the system to
the DECnet through the ThinWire Ethernet network. The option consists
of a network interconnect module that is located in the system box and is
connected to the system module through two 40-conductor cables.
\section{FRU Locations}
Figure 1-7 shows the locations of the FRUs in the system box. Figure 1-8
shows the locations of the FRUs in the expansion boxes.
\fig{MA-0150-87}{FRU Locations in the System Box}
\newpage
\fig{MA-0133-87}{FRU Locations in the Expansion Boxes}
\newpage
\chapter{Testing and Troubleshooting}
\section{Introduction}
This chapter describes how to test and troubleshoot the VAXstation 2000
and the MicroVAX 2000 systems. Differences between the VAXstation 2000
and the MicroVAX 2000 are specifically identified in the text.
This chapter contains the following sections.
\begin{itemize}
\item How to use console mode: determining the console device, enter
ing console mode, exiting console mode, utilizing the diagnostic
console device, and where to find a list of the console commands.
\item How to run the diagnostic tests and interpret the error codes for
each test: power-up tests, self-test, and system exerciser.
\item How to troubleshoot all devices in the system.
\item How to use the utilities.
\end{itemize}
\section{Using Console Mode}
The VAXstation 2000 and the MicroVAX 2000 systems have two modes
of operation: program mode and console mode. Normal operation of the
VAXstation 2000 and the MicroVAX 2000 is in program mode, that is, with
the operating system controlling the system. Console mode allows the user
to control the system from the console terminal using the console com
mands described in Appendix B. Console mode is contained in ROM on
the system module.
Testing is done while in console mode. The System returns the \console
prompt when it is in console mode. Table 2-1 lists the prompts and the
mode of operation each prompt represents.
\begin{table}[H]
\caption{Prompts}
\label{table:1}
\begin{tabularx}{\textwidth}{c l}
\hline
\textbf{Prompt} & \textbf{Mode of operation}\\
\hline
{>}{>}{>} & Console mode. Console commands are listed in Appendix B. \\
\$ & Program mode (VMS operating system) \\
\% & Program mode (Ultrix operating system) \\
\hline
\end{tabularx}
\end{table}
\subsection{Determining the Console Device}
The console device for a VAXstation 2000 system is the keyboard (LK201)
and monitor (VR260) connected to the video port. The keyboard inputs
commands at 4800 baud and the monitor displays output from the video
circuits.
The console device for a MicroVAX 2000 system is the terminal (VT220 or
similar terminal) connected to connector 1 on the DEC423 converter. The
terminal operates at 9600 baud.
\subsection{Entering Console Mode}
Console mode is entered any time the CPU halts. The CPU can be halted
automatically or manually. A halt means that CPU control has passed
control from the operating system to the console mode program in ROM. If
the system halts the CPU, then the console mode program checks the
nonvolatile RAM (NVR) for user-defined instructions on how to handle the halt.
If you manually halt the CPU, the system enters console mode program
immediately without checking the NVR for instructions.
You can manually halt the CPU and enter console mode by one of the
following methods.
\begin{itemize}
\item HALT button -- Press the halt button. It is located next to the printer port
on the back of the System box. The \console prompt is displayed when
ready for console commands.
\item BREAK key -- Press the BREAK key on the diagnostic console device
that is connected to the printer port with the BCC08 cable. The \console
prompt is displayed when ready for console commands.
\end{itemize}
The system automatically halts the CPU for the following reasons.
\begin{itemize}
\item After power-up testing -- If the default recovery action is halt, the system
automatically halts the CPU and enters console mode after power-up
tests are complete. See Section 2.5.4 for information on setting the
default recovery actions.
\item For a boot failure -- If the system fails to boot properly, the system
automatically halts the CPU and enters console mode. See Section 2.5.2
for information on setting the default boot device.
\item On a system error -- If the CPU detects a severe corruption of its oper-
ating environment, it halts and reads the default recovery action in the
NVR. The default recovery action can be restart, boot, or halt. When
it is restart and the restart fails, then the system automatically tries to
boot the operating system software. If the boot fails, the CPU halts and
enters console mode. When the default recovery action is boot and the
boot fails, the CPU halts and enters console mode. When the default re
covery action is halt, the CPU unconditionally halts and enters console
mode.
\end{itemize}
One other way to halt the CPU is when the operating system software
executes a halt instruction. The CPU then reads the default recovery action in
the NVR and acts on it as described above.
\subsection{Exiting Console Mode}
Console mode is exited by typing one of the following console commands.
\begin{itemize}
\item BOOT -- This command initializes the CPU and boots the operating
system software from the device specified. If no device is specified, the
system searches each on-line device until the operating system software
|s found. The boot command starts the system similar to when power
is turned on except that the power-up tests are not run. If the system
attempts to boot over the net (ESA0) and no software is available on
another node, the system keeps looking for the software indefinitely.
If a boot message for the operating system software does not appear
shortly after the Ethernet boot message (ESA0) is displayed, then you
must press the halt button to abort the Ethernet boot. If you still need
to boot over the Ethernet, make sure the node with the operating sys-
tem software is operating normally and the software is loaded. Run the
Ethernet loopback Utility (TEST 90) to check the networking capability
of the system if the Ethernet boot continues to fail.
When a boot is invoked using this boot command, you can specify
several boot command flags by bit encoding the flags in a flag word
specified with the /R5: qualifier. These command flags are listed in
Paragraph 2.5.3.
\item CONTINUE -- This command instructs the CPU to continue the
operating system software at the address contained in the program counter
(PC). This command starts up the operating software where it was halted
provided no console test commands were run. Running a test command
alters the PC and memory so that the operating system software cannot
be started properly by entering the continue command. If a test com-
mand was entered, use the boot command to start the operating system
software. The continue command is similar to the start command. The
start command can specify the address to Start the operating software
and the continue command has the operating software continue where
it left off.
\item START -- This command Starts the operating System Software at a
specified address. If no address is given, the contents of the PC are used.
However, running a test command alters the PC and memory so that the
operating system software cannot be started properly by entering the
start command. If a test command was entered, use the boot command
to start the operating system software.
\end{itemize}
\subsection{Diagnostic Console Device}
There is a diagnostic console device available on the VAXstation 2000. The
MicroVAX 2000 can use this device if the DEC423 Converter is removed.
The diagnostic console device can be utilized by connecting a terminal (such
as the VT100 or VT220) to the printer port with the special BCC08 cable.
The terminal operates at 9600 baud. Field service technicians can use this
terminal as a diagnostic tool to isolate a problem in the normal console
device.
To use this diagnostic console device you must turn off power, connect the
BCC08 cable to the printer port and terminal, and then turn power back on.
The diagnostic console device now controls the system. The normal console
monitor displays video test patterns on the VAXstation 2000 when the video
circuits are tested. The normal console keyboard does not operate.
\subsection{Console Commands}
Console commands are listed in Appendix B.
\newpage
\section{Testing}
Testing procedures on the VAXstation 2000 and the MicroVAX 2000 systems
are almost identical. The differences between the systems are explained
where applicable. All diagnostic tests are ROM-based and testine is done
while in console mode. Tests are executed in either of two ways:
\begin{itemize}
\item Automatically -- When power is turned on the power-up tests begin.
\item Manually -- By entering one of the console test commands on the
console terminal. See Appendix A for a complete listing of the test commands.
\end{itemize}
\subsection{Power-up Tests}
Power-up tests run each time the system power is turned on. Power-up
testing consists of a sequence of tests executed for each device installed in
the system. The test number of each device is listed on the power-up screen
display as the device is tested. Figure 2-1 shows an example of the power-
up screen display. The first line indicates the CPU name (KA410-A) and the
ROM version (V1.0). The test numbers are listed next in descending order
from the first test, F, to the final test, 1. TEST F will have an underscore
after it on the MicroVAX 2000 to indicate that TEST F was not run. Note in
Figure 2-1 that tests 4, 3, 2, and 1 have an underscore (\_) immediately after
them. This underscore indicates that there is no option device installed for
that test; thus, no tests are done. TEST F has an underscore after it on the
MicroVAX 2000 systems because the monochrome video circuits are not
used by the MicroVAX 2000. No other test numbers can have underscores
after them. An asterisk (*) after TESTS 4 through 1 indicate that an option is
installed, but its ROM is destroyed and the Option device must be replaced.
Only TESTS 1 through 4 can have an asterisk after them. Figure 2-2 lists
the symbols that can appear in between the tests and what they indicate.
\begin{figure}[H]
\caption{Example of Power-up Tests Screen Display}
\begin{verbatim}
KA410-A V1.0
F...E...D...C...B...A...9...8...7...6...5...4_..3_..2_..1_..
\end{verbatim}
\end{figure}
Figure 2-2 lists the definitions of the symbols that appear between the test
numbers in the power-up test countdown.
\begin{figure}[H]
\caption{Power-up Symbols Defined}
\begin{verbatim}
... Device tested successfully or has a soft error
?.. Device has a hard error
_.. Device not installed or not tested
*.. Device installed but its ROM is destroyed
\end{verbatim}
\end{figure}
If any hard errors (errors that indicate the device must be replaced for
proper operation) are found during power-up testing, a question mark is
placed after the failing test number during the countdown sequence. An
error summary of all errors detected is listed after the power-up sequence
is complete. Two question marks in the error summary indicate a hard error.
Error codes that indicate the status or soft errors do not put a question mark
after the failing test number in the sequence, but do list the error code in the
error summary. Figure 2-3 shows the power-up screen display with a hard
error found in TEST F and a soft error found in TEST E. The error summary
for each failed device is displayed before the boot sequence is started.
However, the screen usually scrolls so fast when the system starts to boot
that you may not be able to see what the error summary contained (if there
was an error summary). To see what errors the power-up tests found, press
the halt button and enter TEST 50 on the console terminal. TEST 50 is the
command for bringing up the configuration table. The configuration table
is created during power-up testing. This configuration table contains all of
the error codes listed in the power-up error summary as well as error codes
for all devices installed in the system. The error codes in the configuration
table are updated every time self-test is run. See Paragraph 2.5.1 for an
explanation of how to use the configuration table.
Each error summary consists of one or two question marks, a test number,
the ID number of the failed device, and an eight-digit error code. For ex-
ample, in Figure 2-3, the first line of the error summary shows a hard error
for TEST F, a device ID number of 00B0, and an error code of 0001.F002.
The second line shows a soft error for TEST E, a device ID of 0040, and an
error code of 0000.0005. Section ( 2.3.1.1) describes the error codes.
\newpage
\begin{figure}[H]
\caption{Example of Power-up Tests Screen Display with Errors.}
\begin{verbatim}
KA410-A V1.0
F?..E...0...C...B...A...9...8...7...6...5...4_..3_..2_..1_..
?? F 00B0 0001.F002
? E 0040 0000.0006
\end{verbatim}
\end{figure}
If there is a fatal error in the NVR during power-up testing, the system stops
testing the other devices and displays ?14 TOY ERR on the screen. When
this happens, the only way to determine the cause of the problem is by
viewing the LEDs on the keyboard. One of the LEDs will be lit to indicate
the failing module. Table 2-2 lists the LEDs and which module has failed.
\begin{table}
\label{table:2}
\caption{Keyboard LEDs Deflned}
\begin{tabularx}{\textwidth}{l l}
\hline
\textbf{Keyboard LED} & \textbf{Failing module}\\
\hline
Hold Screen & System module \\
Lock & Not used \\
Compose & ThinWire Ethernet option module \\
Wait & Not used \\
\hline
\end{tabularx}
\end{table}
Once power-up testing is complete and no fatal or hard errors are found, the
system boots the operating system software. Both the VAXstation 2000 and
the MicroVAX 2000 boot the operating system software the same. The only
difference between the two is that the VAXstation 2000 clears the console
screen before it boots and the MicroVAX 2000 does not. If a default boot
device is loaded in the NVR, the system boots off of that device. If no
default device is loaded in the NVR, the system searches every on-line
storage drive for the operating software. DUA2 is searched first if a floppy
diskette is loaded. Otherwise, it is not searched at all. The hard disks are
searched next, DUA0 then DUAl. MUA0, the tape drive, is checked after
the hard disk drives if it is installed and a cartridge is loaded. Finally, the
system searches the Ethernet network for the software and ESA0 is listed
on the screen. The system continues to search the Ethernet network until
the operating system software is found.
\newpage
\subsubsection{Power-up Test Error Codes}
The power-up test error codes indicate status and/or error information. Any
errors found by power-up tests are listed in the error summary after the
power-up test countdown sequence. This summary, if any, gives you a brief
summary of the errors. Table 2-3 lists the test numbers and the devices that
are tested during that particular test. To look at the complete list of devices
and the status of that device, you must display the configuration table. The
configuration table lists every device in the system and also lists the results
of the self-test and power-up tests and is updated each time self-test is run.
The error codes for each device in the configuration table are explained in
the troubleshooting section for that individual device. Remember that the
configuration table contains the results of the self-test and power-up tests
and not the results of the system exerciser. Figure 2-4 shows an example
of the configuration table and for an explanation of the configuration table,
see Paragraph 2.5.1.
\begin{figure}[H]
\caption{Example of the Configuration Table}
\begin{verbatim}
>>> TEST 50
KA410-A V1.0
ID 08-00-2B-02-CF-A4
?? MONO 0001.F002
? CLK 0000.0005
NVR 0000.0001
DZ 0000.0001
00000001 00000001 00000001 00000001 00000001 000012A0
MEM 0002.0001
00200000
MM 0000.0001
FP 0000.0001
IT 0000.0001
HDC 1710.0001
000146B8 00000000 00000320
TPC 0202.0001
FFFFFF03 01000001 FFFFFF06 FFFFFF05 FFFFFF05 FFFFFF05 ...
SYS 0000.0001
NI 0000.0001 V1.0
>>>
\end{verbatim}
\end{figure}
The most common good error code is 0000.0001. There are, however, some
devices that use the first four digits in the error code to indicate the status
of the device and the last four digits to indicate the error found on the
device. The memory (MEM) error code, for instance, contains 0002.0001
which indicates two megabytes of memory is available (0002.) and no error
found (.0001). On devices like these, the last four digits always indicate
.0001 as a good (non-error) indication.
Some error codes indicate no error at all and give a status of the device
such as the clock (CLK) which shows that the date and time has not been
set. This is not an error, just a status of the clock circuits.
Any error code other than 0000.0001 on the MONO, MM, FP, IT, or SYS
devices indicates a hard error and that device must be replaced for proper
operation of the system. The other devices such as CLK, NVR, DZ, MEM,
HDC, TPC, and NI may have a status or a soft error message in the error
codes and may still operate normally.
See the troubleshooting procedures section (Paragraph 2.4) for each device
to determine whether or not the error code indicates a fault or a status for
the device.
\subsection{Self-test}
Self-test allows you to test every device again individually, a few at a time,
or all of them sequentially just like power-up tests. To individually test a
device, enter TEST \# where \# is the test number of the device you want
tested. Table 2-3 lists the test numbers and the devices tested by those
numbers. Figure 2-5 shows an example of running self-test successfully on
the disk controller.
\begin{figure}[H]
\caption{Example of Running Self-test on the Disk Controller}
\begin{verbatim}
>>> TEST 7
7...
>>>
\end{verbatim}
\end{figure}
To test a group of devices, enter TEST followed by the test number of the
first device to be tested and then the test number of the last device to be
tested. Figure 2-6 shows an example of testing a group of devices. In Figure
2-6, all tests between C and 4 are tested successfully. Note that you cannot
pick and choose which devices to test between C and 4, all tests between
C and 4 are tested when entered as a group.
\begin{figure}[H]
\caption{Example of Running a Series of Self-tests}
\begin{verbatim}
>>> TEST C 4
C...B...A...9...8...7...6...5...4_..
>>>
\end{verbatim}
\end{figure}
To test all devices, enter TEST F 1. The MicroVAX 2000 skips over the
MONO video test (TEST F) since it does not use the video circuits.
\begin{table}[H]
\caption{Self-test Commands}
\label{table:3}
\begin{tabularx}{\textwidth}{p{2cm} p{8cm}}
\hline
\raggedright\textbf{Test\newline Number} & \textbf{Device\newline Tested} \\
\hline
1 & Option module (Network Interconnect module) (NI) \\
2 & Option module (not available) \\
3 & Option module (not available) \\
4 & Option module (not available) \\
5 & Interrupt Controller and ThinWire Ethernet ID ROM (SYS) \\
6 & Tape Controller. (TPC) \\
7 & Disk conroller. (HDC) \\
8 & Interval timer. (IT) \\
9 & Floating point unit. (FP) \\
A & Memory management unit. (MM) \\
B & Memory. (MEM) \\
C & DZ Controller. (DZ) \\
D & Non-volatile RAM. (NVR) \\
E & Time-of-year dock. (CLK) \\
F & Base video (MONO) (VAXstation 2000 only) \\
\hline
\end{tabularx}
\end{table}
\subsubsection{Self-test with Loopback Connectors}
Customer mode self-test does not test the drivers or the lines of the serial
line conroller (DZ) since loopbacks are not used. Run self-test in field
service mode to test the DZ drivers by installing the loopback connectors on
the back of the System. Follow one of the procedures below.
To test the DZ on VAXstation 2000, install a loopback (p/n 29-24795) on
the 25-pin communication port and a loopback (p/n 29-24794) on the 9-pin
printer port. Run TEST C. You cannot use loopback connectors if you are
using the diagnostic console device with the BCC08 cable on the printer
port since there is no loopback connector for the video port.
To test the DZ on MicroVAX 2000, install a loopback (p/n 29-24795) on the
25-pin communication port and install an MMJ loopback on both ports 2
and 3. Run TEST C.
\textbf{NOTE:} \textit{The ThinWire Ethernet port on the back of the
system box must be terminated properly when running diagnostics on the
network option (TEST 1) othetwise an error code of 0000.7001 or greater
is listed in the configuration table.}
\subsubsection{Self-test Error Codes}
Figure 2-7 shows how an error is displayed if found during self-test. This
example shows an error on the disk controller during self-test. The 84 FAIL
indicates an error was found on the device tested. You must display the
configuration table (TEST 50) after self-test is complete to see the error code,
if there is an error during self-test, since the error codes do not appear on
the screen. The configuration table lists every device in the system, fists the
results of the self-test and power-up tests, and is updated each time self-test
is run. The error codes for each device in the configuration table are
explained in the troubleshooting section for that individual device. Remember
that the configuration table contains the results of the self-test and power-up
tests and not the results of the system exerciser. See Paragraph 2 5 1 for an
explanation of the configuration table.
\begin{figure}[H]
\caption{Example of a Self-test Error on the Disk Controller}
\begin{verbatim}
>>> TEST 7
7?..
84 FAIL
>>>
\end{verbatim}
\end{figure}
(You must display the configuration table to see the error code)
\input{EK-VSTAA-MG-001-preamble}
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\input{EK-VSTAA-MG-001-ch2}
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