Tektronix TDS3000B Series Service manual

Copyright ©Tektronix, Inc. All rights reserved.
Tektronix products are covered by U.S. and foreign patents,
issued and pending. Information in this publication supercedes
that in all previously published material. Specifications and
price change privileges reserved.
Tektronix, Inc., P.O. Box 500, Beaverton, OR 97077
TEKTRONIX, TEK, TEKPROBE, and Tek Secure are
registered trademarks of Tektronix, Inc.
DPX, WaveAlert, and e*Scope are trademarks of
Tektronix, Inc.
Reference
TDS3000B Series
Digital Phosphor
Oscilloscopes
071-0923-00
*P071092300*
071092300

WARRANTY SUMMARY
Tektronix warrants that the products that it manufactures and
sells will be free from defects in materials and workmanship
for a period of one (1) year from the date of shipment from an
authorized Tektronix distributor. If a product proves defective
within the respective period, Tektronix will provide repair or
replacement as described in the complete warranty statement.
To arrange for service or obtain a copy of the complete
warranty statement, please contact your nearest Tektronix sales
and service office.
EXCEPT AS PROVIDED IN THIS SUMMARY OR THE
APPLICABLE WARRANTY STATEMENT, TEKTRONIX
MAKES NO WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING WITHOUT LIMITATION THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND
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SPECIAL OR CONSEQUENTIAL DAMAGES.
Contacting Tektronix
Phone [phone]*
Address Tektronix, Inc.
Department or name (if known)
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Technical
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offices.

2
Safety Summary
To avoid potential hazards, use this product only as
specified in the TDS3000B Series Digital Phosphor
Oscilloscope User Manual which is located on the
TDS3000B Series Digital Phosphor Oscilloscope
Manuals and Application Notes CD. While using this
product, you may need to access other parts of the
system.
Read the General Safety Summary in the user manual
and in other system manuals for warnings and cautions
related to operating the system.
Preventing Electrostatic Damage
CAUTION. Electrostatic discharge (ESD) can
damage components in the oscilloscope and its
accessories. To prevent ESD, observe these
precautions when directed to do so.
UseaGroundStrap. Wear a grounded antistatic wrist strap
to discharge the static voltage from your body while
installing or removing sensitive components.
1
Contents
Safety Summary 2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
TDS3000B Initial Setup 5. . . . . . . . . . . . . . . . . . . . . . .
QuickMenus 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Menus 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Acquire Menu 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
XY Cursor Menu 14. . . . . . . . . . . . . . . . . . . . . . . . . . . .
YT Cursor Menu 15. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Display Menu 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Measure Menu 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Save/Recall Menu 24. . . . . . . . . . . . . . . . . . . . . . . . . . .
Trigger Menus 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Utility Menus 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vertical Menus 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
e*ScopeE Web-based Remote Control 41. . . . . . . . . . . .
Automatic Measurements 44. . . . . . . . . . . . . . . . . . . . .

3
Use a Safe Work Area. Do not use any devices capable of
generating or holding a static charge in the work area
where you install or remove sensitive components.
Avoid handling sensitive components in areas that have a
floor or benchtop surface capable of generating a static
charge.
Handle Components Carefully. Do not slide sensitive
components over any surface. Do not touch exposed
connector pins. Handle sensitive components as little as
possible.
Transport andStoreCarefully. Transport and store sensitive
components in a static-protected bag or container.
Manual Storage
The oscilloscope front cover has a convenient place to
store this manual.
4
More Information
Refer to the TDS3000B Series Digital Phosphor
Oscilloscope User Manual, which is located on the
TDS3000B Series Digital Phosphor Oscilloscope
Manuals and Application Notes CD, for more
information about using this product.

6
3. Connect the oscilloscope probe
to channel 1. Attach the probe
tip and reference lead to the
PROBE COMP connectors.
CH 1
PROBECOMP
4. Push the AUTOSET button.
You should see a square wave
in the display (approximately
5 V at 1 kHz).
Probe Compensation
5. Check the shape of the dis-
playedwaveform.
Overcompensated
Compensated correctly
Undercompensated
6. Adjust your probe if necessary
to achieve correct compensa-
tion.
L
5
TDS3000B Initial Setup
The following procedures describe how to quickly verify
that the oscilloscope is powering up and functioning
correctly, compensate passive probes using the built-in
compensation signal, and run the signal path compensa-
tion (SPC) routine for maximum signal accuracy.
HYou should perform all initial setup procedures the
first time you use the oscilloscope.
HYou should perform the probe compensation
procedure whenever you attach a passive probe for
the first time to any input channel.
HYou should run the signal path compensation routine
whenever the ambient temperature changes by 10_C
or more.
Functional Check
1. Connect the oscilloscope power cable
2. Turn on the oscilloscope. Wait
for the confirmation that the
oscilloscope has passed all
self-tests.
On/Standby
button

7
Signal Path Compensation (SPC)
The signal path compensation (SPC) routine optimizes
the oscilloscope signal path for maximum measurement
accuracy. You can run the routine anytime but you
should always run the routine if the ambient temperature
changes by 10_C or more.
To compensate the signal path, do the following steps:
1Disconnect all probes or cables.
2Push the UTILITY button.
3Push the System screen button to select Cal.
4Push the Signal Path screen button.
5Push OK Compensate Signal Path.
Setting the User Interface Language
To set the user interface language, do the following
steps:
1Push the UTILITY button.
2Push the System screen button to select Config.
3Push a side menu button to select a language.
8
Adjusting Time and Date
To set your oscilloscope to the current date and time, do
the following steps:
1Push the UTILITY button.
2Push the System menu button to select Config.
3Push the Set Date & Time menu button.
4Use the side menu buttons and general purpose knob
to adjust the date and time values.
5Push the OK Enter Date/Time menu button to set
the instrument date and time.
User Manual
The TDS3000B Series DPO Oscilloscope Manuals and
Application Notes CD contains the TDS3000B Series
Digital Phosphor Oscilloscope User Manual, translated
into all supported languages. The user manual contains
complete information on how to operate your
TDS3000B Series oscilloscope.
The CD also contains manuals for all TDS3000B Series
accessories, application notes, oscilloscope and probe
fundamentals, and software to install the Adobe Acrobat
Reader, which is required to view the online documents.

10
To use a QuickMenu, do these steps
1Push the QUICKMENU button on the front panel.
2Push the screen button that corresponds to the control
you need to set. Push the screen button repeatedly to
choose one of the settings. The small arrow icon
indicates that there are additional settings available
that are not shown.
You can use most of the front-panel controls at the same
time you are using a QuickMenu. For example, if you
push a channel button to select a different channel, the
QuickMenu changes to show information about that
channel.
You can still use the regular menus. For example, if you
push the MEASURE button, you can set up and take
automatic waveform measurements in the usual way. If
you return to the QuickMenu, the measurement is still
displayed on the screen.
You may have optional application modules installed
that also have QuickMenu displays. To select the Quick-
Menu you want to use, push the MENU screen button.
This menu item is shown only if application modules
that contain a QuickMenu are installed.
9
QuickMenus
The QuickMenu feature simplifies the use of the oscillo-
scope. When you push the QUICKMENU button, a set
of frequently used menu functions show on the display.
Scope is one type of QuickMenu that you can use to
control the basic oscilloscope functions. You can per-
form many tasks without using the regular menu system.

11
Menus
The following sections briefly describe each oscilloscope
menu item.
Acquire Menu
Bottom Side Description
Mode Sample Use for normal acquisition.
PeakDetect Detects glitches and reduces
the possibility of aliasing.
Envelope N Captures variations of a signal
over a period of time. (Adjust N
with the general purpose knob.)
AverageN Reduces random or uncorre-
lated noise in the signal display.
(Adjust N with the general
purposeknob.)
Horizontal
Resolution Fast Trigger
(500points) Acquires 500 point waveforms at a fast repetition rate.
Normal
(10kpoints) Acquires 10,000 point wave- forms with more horizontal
detail.
ResetHori-
zontal Delay Set to 0 s Resets the horizontal delay to zero.
12
Bottom DescriptionSide
Autoset
Normal
Autoset Executes the autoset function. (Optional application modules
may add choices to execute
specialized autoset functions.)
UndoAutoset Reverts to the settings before
the last autoset.
WaveAlert
Wfm Anomaly
Detection
On Off
Enables or disables the
WaveAlert Waveform Anomaly
Detection function. See page
13.
Sensitivity
nn.n% Sets the comparison sensitivity. Use the general purpose knob
to set sensitivity from 0% (least
sensitive) to 100% (most sensi-
tive).
Beep On
Anomaly
On Off
When On, the oscilloscope
beeps if it detects a waveform
anomaly on any active channel.
Stop On
Anomaly
On Off
When On, the oscilloscope
stops waveform acquisition if
there is a waveform anomaly on
any channel. The input wave-
forms and anomalies remain
displayed on the screen.

14
XY Cursor Menu
The following cursor menu items are available in the XY
display mode (DISPLAY > XY Display > Triggered
XY). Push the CURSOR button to show the cursor
menu.
Bottom Side Description
Function
Off Turns cursors off.
Waveform Turns waveform cursors on and
displays measurements in
rectangular format (X and Y
values). Use the front-panel
SELECT button to select a
cursor. Use the general purpose
knob to move the active cursor.
Mode
Independent Sets cursors to move indepen-
dently.
Tracking Sets cursors to move together
when the reference cursor is
selected.
NOTE. The Advanced Analysis application
module (TDS3AAM) adds more XY cursor
features, including graticule cursors and polar
readouts.
13
Bottom DescriptionSide
WaveAlert
(cont.) Hardcopy
On Anomaly
On Off
When On, the oscilloscope
sends an image of the screen to
the hard copy device or floppy
file if there is a waveform anom-
aly on any channel.
Wfms To Disk
On Anomaly
On Off
When On, the oscilloscope
saves the anomalous wave-
form(s) data to the floppy disk
drive.
Highlight
Entire Wfm Highlights the entire anomalous waveform.
Highlight
Anomaly Highlights just the anomalous data in a waveform.
WaveAlerttWaveform Anomaly Detection. WaveAlert
provides a way to detect when a waveform deviates from
a steady-state condition. WaveAlert monitors the current
waveform acquisition and compares it to the previous
waveform acquisition. If the current acquisition exceeds
the comparison tolerance, the oscilloscope considers the
current acquisition as an anomaly and responds by
stopping acquisitions, emitting a beep, saving the
anomalous waveform to a disk file, printing the screen
image to a hard copy device, or any combination of the
above. Refer to the TDS3000B Series Digital Phosphor
Oscilloscope User Manual for more information.

15
YT Cursor Menu
The following YT cursor menu items are available in the
YT display mode (DISPLAY > XY Display > Off
(YT)). Push the CURSOR button to show the cursor
menu.
Bottom Side Description
Function Off Turns cursors off.
H Bars Use to take vertical measure-
ments.
V Bars Use to take both vertical and
horizontalmeasurements.
BringSelected
Cursor to
CenterScreen
Moves the active cursor to center
screen.
Bring Both Cur-
sors On Screen Moves any off-screen cursoronto thescreen.
Mode Independent Sets cursors to move indepen-
dently.
Tracking Sets cursors to move together
when cursor 1 is selected.
16
Bottom Side Description
V Bar Units
Sec (s) /
1/sec (Hz) Sets horizontal units to se- conds or frequency (Hz).
Ratio (%) Sets V Bar measurement
units to percent.
Phase(degrees) Sets V Bar measurement
units to degrees.
Use cursor posi-
tions as %/°
Sets V Bar measurement
scale so that 0% or 0°is the
current position of left V Bar
cursor and 100% or 360°is
the current position of right V
Barcursor.
Use 5 divs as
%/°Sets V Bar measurement scale so that 5 screen major
divisions is 100% or 360°,
where 0% or 0°is –2.5 divi-
sions and 100% or 360°is
+2.5 divisions from center
graticule.

18
Display Menu
Bottom Side Description
Waveform
Display
Dots Only Set to on to see dots only. Set
to off to see dots and vectors.
Persist Time Sets persist time.
Set to Auto Sets the WAVEFORM
INTENSITY knob to control the
persistencetime.
Clear
Persistence Clears any displayed persis- tence.
Backlight In-
tensity
High Use for bright ambient condi-
tions.
Medium Use for dim ambient conditions.
Low Usetoextendbattery-operation
time.
Graticule Full, Grid,
CrossHair,
Frame
Selects the graticule type.
17
Bottom Side Description
H Bar Units Base Sets the H Bar units to be the
same as the selected wave-
form’s vertical measurement
units (volts, IRE, dB, and so
on).
Ratio (%) Sets H Bar measurement units
topercent.
Usecursor
positions as
100%
Sets the H Bar measurement
scale so that 0% is the current
position of lowest H Bar cursor
and 100% is the current posi-
tion of highest H Bar cursor.
Use 5 divs as
100% Sets H Bar measurement scale so that 5 screen major divisions
is 100%, where 0% is –2.5
divisions and 100% is +2.5
divisions from center graticule.
Cursor Movement. Use the general purpose knob to move
the active cursor. Push the SELECT button to change
which cursor is active.
FasterCursor Movement. Push COARSE to set the general
purpose knob to make faster cursor movements.

19
Bottom DescriptionSide
XY Display Off (YT) Turnsoff an XY display.
TriggeredXY Turns on triggered XY display.
Gated XYZ Displays XY signals when
Z-channel signal is above a set
level. Only available on 4-chan-
nelinstruments.
Ch1 (X)
Versus Sets Ch2, Ch3, or Ch4, as Y versus Ch1 as X.
Ref1 (X)
Versus Sets Ref2, Ref3, or Ref4 as Y
versus Ref1 as X.
Gated By Sets Ch2, Ch3, or Ch4 as Z
channel (gate) source, and
gating channel threshold level.
ColorPalette Normal Selects the color display.
Monochrome Sets all waveforms to high-con-
trast black and white.
XY Waveforms. For XY waveforms, channel 1 or Ref 1 is
displayed in the horizontal axis. Use the Vertical POSI-
TION and SCALE controls to adjust the horizontal
position and size of the XY waveform.
20
Another channel or reference waveform is displayed in
the vertical axis. Use the Vertical POSITION and
SCALE controls for that channel to adjust the vertical
position and size of the XY waveform.
XY Waveform Triggering. The XY waveform is triggered
so you can synchronize periodic input signals to the XY
waveform. This feature is useful when only one part of
the period contains valid information that you want to
see in the XY format. Set the time base and trigger
location to acquire just that part of the period.
When you want to see the complete period of the signals
regardless of the time base setting, set the trigger source
to an unused channel and the trigger mode to Auto.
GatedXYZ. Displays XY signals only when the Z (gating)
channel is true. Gated XYZ is similar to analog oscillo-
scope modulated XYZ mode except that the displayed
XY signal is either on or off; there is no intensity modu-
lation. Gated XYZ is useful for displaying constellation
diagrams.
The general purpose knob sets the Z-channel threshold
level.

22
Bottom DescriptionSide
Gating
BringSelected
Cursor to
CenterScreen
Moves the active cursor to
centerscreen.
Bring Both Cur-
sors On Screen Moves any off-screencursor onto the screen.
High-Low
Setup
Auto Select Automatically uses the best
measurementmethod depend-
ing on the measurement type.
Histogram Use to measure pulses.
Min-Max Use to measure other wave
shapes.
21
Measure Menu
Bottom Side Description
Select
Measurement Select an automatic measure- ment for the selected (active)
channel. You can display up to
four measurements at one time.
See page 44.
Remove
Measurement Measurement
1-4 Removes a specific measure- ment.
All
Measurements Removesallmeasurements.
Gating Off Use to take measurements on
the full waveform record.
Screen Use to take measurements on
the portion of the waveform on
screen.
Cursors Use to take measurements on
the portion of the waveform
between the V Bar cursors.

23
Bottom DescriptionSide
Reference
Levels Set Levels in %
or units Use to choose custom refer- ence levels in relative or abso-
lute units.
High
Reference Sets custom high reference level.
Mid
Reference Sets custom mid reference level.
Mid 2 Sets the custom mid reference
level for the Delay and Phase
measurementsecondwave-
form.
Low
Reference Sets custom low reference level.
Set to
Defaults Sets reference levels to default values.
Indicators Measurement
1-4 Selects the measurement for which to display markers that
show the portion of the wave-
form used to calculate the
measurementvalue.
Off Turns measurement indicators
off.
24
Save/Recall Menu
Bottom Side Description
SaveCurrent
To File Saves a setup to disk.
Setup
To Setup 1
...
To Setup 10
Saves a setup to nonvolatile
memory.
Recall Saved
From File Recalls a setup from disk.
Setup
Recall Setup 1
...
Recall Setup
10
Recalls a setup from nonvolatile
memory.
Recall Factory
Setup OKConfirm Factory Init Initializes the setup to a known setup.
Save Wfm
To File Shows file-format choices:
Internal,Spreadsheet,orMath-
cad. Saves active waveforms to
disk.
To Ref1
...
To Ref4
Saves the selected waveform to
nonvolatilememory.
Recall Wfm From File
Recall Ref1
...
Recall Ref4
Recalls a waveform from disk
and displays it as a reference
waveform.

26
Trigger Menus
Edge Trigger Menu
Bottom Side Description
Source
Ch1
...
Ch4
Sets the trigger source to a
specific channel.
AC Line Selects the AC line trigger source
(for AC line operation only)
Ext
Sets the oscilloscope to trigger
on the external trigger source.
Ext/10
Ext/10 attenuates the external
trigger signal by a factor of 10.
Ext Probe
nnX
Voltage / Current
(4-channelonly)
Set this value to match the
attenuation factor and the type of
probe (voltage or current) that is
attached to the external trigger
connector. Push the menu button
to select the probe type. Use the
general purpose knob to set the
attenuation factor. The default
values are 1x and voltage.
25
File Utilities Menu
Bottom Side Description
File Delete Deletes a file.
Utilities Rename Names or renames a file.
Copy Copies a file to another directo-
ry.
Print Prints a file to a printer con-
nected to one of the hard copy
ports.
Create
Directory Creates a new directory.
Confirm
Delete Turns On or Off a confirmation message before files are de-
leted.
Overwrite
Lock Sets file overwrite protection to On or Off.
Format Formats a disk (erases all files).
Labels Create/editlabels for reference waveforms and
instrument setups stored in nonvolatile memory.

27
Bottom DescriptionSide
Source Vert Sets the trigger source to the
lowest-numberedactivechannel
in the display.
Alternating
(all active chan-
nels)
Sequentially uses each active
channel as a trigger source, from
thelowest-numberedactive
channeltothehighest-numbered
active channel.
Coupling DC Selects DC coupling.
HF Reject Rejects frequenciesabove
30 kHz in the trigger signal.
LF Reject Rejectsfrequencies below
80 kHz in the trigger signal.
Noise Reject DC coupling with low sensitivity
to reject noise in the trigger
signal.
Slope / (rising edge) Triggers on the rising edge of a
signal.
\ (falling edge) Triggers on the falling edge of a
signal.
28
Bottom DescriptionSide
Level
Level Use to set the trigger level with
the general purpose knob.
Set to TTL Sets the trigger level to +1.4 V
for TTL logic.
Set to ECL Sets the trigger level to –1.3 V for
ECL logic (Vee = –5.2 V).
Set to 50% Sets the trigger level to the 50%
amplitude level of the signal.
Mode &
Holdoff
Auto(untriggered
roll) Enablesfree-running and roll- modeacquisitions.
Normal Triggers only on valid trigger
events.
Holdoff (time) Sets holdoff to a specific time.
Holdoff
(% of record) Sets holdoff to a percent of the recordduration.
Set to Min Sets holdoff to the minimum
value.

30
B Trigger Menu
Bottom Side Description
B Trigger
After A
B TriggerAfter
A Time Sets the oscilloscope to trigger on the next B-trigger event that
occurs after a specified period
of time from the A trigger. Use
the general purpose knob to set
the time value.
Set to Delay
Time (B³▼)
then Set
(B³▼) to 0s
Sets the B Trigger After A Time
value to the horizontal B³▼
value, then sets B³▼to zero
seconds. B³▼is the delay
time from the B trigger point to
the expansion point (center
screen).
Set to Min Sets B Trigger After A time to
26.4 ns.
B Events Sets the oscilloscope to trigger
on the nth B-trigger event after
the A trigger. Use the general
purpose knob to set the event
value.
Set to Min Sets the B events count to 1.
29
Video Trigger Menu
Bottom Side Description
Standard 525/NTSC Triggerson a NTSC signal.
625/PAL Triggers on a PAL signal.
SECAM Triggers on a SECAM signal.
Source Selects the trigger source. See
Edge Trigger Menu for descrip-
tions of these menu items.
TriggerOn Odd Triggers on odd or even fields in
Even an interlaced signal.
All Fields Triggers on any field in an
interlacedornoninterlaced
signal.
All Lines Triggers on all lines.
NOTE. The Extended Video application module
(TDS3VID) adds more video features including
custom video triggering, video picture,
vectorscope, and analog HDTV triggering.

31
Bottom DescriptionSide
Source Sets Source, coupling, slope,
Coupling and level for the B trigger.
These settings are independent
Slope of similar settings for the A
trigger. See Edge TriggerMenu
Level for descriptions of these menu
items.
Utility Menus
Configuration System Menu
Bottom Side Description
Language English Use to choose your native
Français language. Most on-screen text
appears in the language you
Deutsch appears in the language you
choose.
Italiano
Español
Português
(Russian)
(Japanese)
(Korean)
(Simplified
Chinese)
(Traditional
Chinese)
32
Bottom DescriptionSide
Set Date &
Time
Display Date/
Time Use to turn the date/time display On or Off.
HourMin Use to set the internal clock
with the current hour and min-
ute.
MonthDay Use to set the internal clock
with the current month and day.
Year Use to set the internal clock
with the current year.
OK Enter
Date/Time Sets the date and time of the internal clock.
Battery
Time-Outs
PowerOff
Time-Out Use to set the time before an automatic shut down.
Backlight
Time-Out Use to set the time before the backlight automatically turns off.
Tek Secure
EraseMemory Erases all nonvolatile waveform and setup memory.
Version Use to see the firmware ver-
sion.

34
Bottom DescriptionSide
EthernetNet-
workSettings
Change
Instrument
Settings
Sets oscilloscope Ethernet
parameters such as the IP
address,instrument name, and
domainname.
DHCP/
BOOTP Enables or disables DHCP/ BOOTPsupport.
Debug Enables or disables a debug
messagewindow.
Test
Connection Tests the connection to your network.
EthernetPrint-
AddPrinter
Adds, renames, or deletes an
er Settings
Rename
Printer
Ethernetnetworkprinterfrom
the oscilloscope printer list.
DeletePrinter
Confirm
Delete Enables or disables displaying a printernamedelete confirmation
message.
More Information. Refer to the TDS3000 & TDS3000B
Series Digital Phosphor Oscilloscope Programmer
Manual for more information.
33
I/O System Menu
Bottom Side Description
GPIB
(TDS3GV) Talk/Listen Ad-
dress Sets the GPIB address.
HardCopy
(Talk Only) Sets the GPIB port to talk only for making hard copies.
Off Bus Disables the GPIB port.
Debug Enables and disables a mes-
sage window to help you debug
GPIBproblems.
RS-232
(TDS3GV) BaudRate Sets the baud rate in steps from
1200 to 38400.
Flagging Use to enable hard flagging
(RTS/CTS) or turn flagging off.
EOL Selectsend-of-lineterminator.
Debug Enables and disables a mes-
sage window to help you debug
RS-232problems.
SetRS-232
Parametersto
Default Values
Sets baud rate = 9600, hard
flagging = on, and EOL = LF.

35
Hard Copy System Menu (Utility > System: Hard Copy )
Bottom Side Description
Format Choose the correct hard copy
format for your printer.
Options Portrait Prints in a portrait orientation.
Landscape Prints in a landscape orienta-
tion.
Compression Turn on or off hard copy file .gz
compressionformat.
Ink Saver Off Prints the display colors.
On Prints colors optimized for
printing on white paper.
Preview Shows a preview of the hard
copy colors on the display.
Port Centronics Uses the parallel printer port.
GPIB Uses the GPIB port.
RS-232 Uses the RS-232 port.
File Saves the hard copy to the
floppy disk.
Ethernet Uses the Ethernet LAN port.
ClearSpool Stops a hard copy in progress.
Clears the print spooler.
36
Calibration System Menu
Bottom Side Description
System Cal
Signal Path Compensates the signal paths
to obtain best measurement
accuracy.
Factory Cal Used to calibrate the oscillo-
scope. This is a service function
only.
Cal Due
Control
NotifyAfter
Hours of Op-
eration
Sets the number of hours of
operation before notifying you
that a calibration is due.
NotifyAfter
Years of
Elapsed Time
Sets the number of years before
notifying you that a calibration is
due.
Signal Path Compensation. You can run the Signal Path
Compensation routine anytime but you should always
run the routine if the ambient temperature changes by
10 °C or more.