Tektronix TDS 310 User manual

4.
Instruction Manual
Tektronix
TDS 310, TOS 320, & TDS 350
Two Channel Oscilloscopes
070-8568-02

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TEK .INTER-OFFICE COMlvllJNlCATlON.-
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Sohn Martin 94-540
TO 3:.'t Juno 25, 1991
FWW
Frank Gray, SO-PAT
M3KC.T
GIDEP permit request
In response to the request to grant permission to the
Government Industry Exchange Pro ram
Tektronix operator, service and P
(GPDEP) to reproduce
nstruction manuals,
Tektronix, Inc. hereby grant6 such permission for distribution
of such documents to any GTDEP user that is a full participant
in the Metrology Data Interchange Data Base of GIDEP provided
that all copies of the original work include the entire
copyright notice and ownership statement exactly a-&it appears
in the original, together with the Legend "Reproduded with
pemieeion,a
This permission has been approved by the Intellectual
aeon% 1[
Committee of Tektronix
ded
and a copy of this memo may
to GIDEP to provide'the requested permission.
g:&dy
Group Pat&t Coun&al

S
:9
I
Front Panel
TDS 300 Series oscilloscopes are simple to use. To reduce the clutter of
knobs and buttons on the front panel (see Figure 3-1), many instrument
control functions are menu driven. Use menus to access instrument func -
tions that you typically set once before making measurements. Use knobs
or buttons to control instrument functions that you most often adjust during
measurements.
Figure 3-1: The TDS 320 Oscilloscope Front Panel
The menus are easy to use. For example, to make a change to the vertical
operating system, press the VERTICAL MENU button to display the menu
choices.
This section illustrates each control and connector and contains brief de -
scriptions of its use or function.
3-3
IWO CIWIN~
riIk~o nix_TDS3~COP~_~OOM~J
Ii
‘7, ___ ________
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0
0
-Q
- MENU
NOLII MIAWOO ~EFL_~) G~~5’
~ o o c~ o c
11)0501, OII~LA)ACOulRF -
0000
VERTICAL FIORIZONTAL TRIGQEA
o OH 1
00011505
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P0511104
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LSVCL
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VERTICAL
— MENU
HORIZONTAL
MENU TRIGGER MENU
OMATH 0 0
0
0 soiis~~i~
~~OO
0 REF 2
~
-wit OH 1 OH 2 Ii EXITHIG
4,
TDS 310, TDS 320, & TDS 350 Instruction Manual

Front Panel j
-s
Display and Power
Controls
~Tekt*ffon~x TDS32O~U~Z~ - .!~. J
U
1J
U
U
ci.
Mt~l1
/\
The ON/STAY button toggles
instrument power.
The Main Menu buttons provide
access to mainmenu selections. See
page 2-3 for more in formation on the
user interface.
The Side Menu buttons provide
access to side menu selections. See
page 2-2 for more information en the
user interface.
The CLEAR MENU button clears all
menus from the screen.
Operation
SI
a.
SI
F!
F!.:
.4
A—
3-4

Fro~j Panel
Vertical Controls
The Waveform $ele~t buttons
d~spfay and select wavEforms (CHI,
CH2, MATH, REFI, and RE~2). ~
light next to a button illuminates
when that waveform Is selected.
The V&,’jj~~J POSITION knob
CofltfOlS the vertical position of
the presently selected wao/Oform.
The VERTICAL MENU buttOn calls
up the vertical operations menu.
l~or more i,~o rmaf ion OtT vert/cal
operations, see page 3- 7.
The VOLrS/Qft( knob controls the
vertical scale of (he presently
selected waveform.
The WAVEFORM OFF button
turnS off the presently selected
waveform.
Probe compensation output.
See page 2-7 for instruOt,onson
110W tO compensate the probes.
OCH 1
o OH 2
OM,ATH
oREF 1
OREF 2
0B~ COMP
Connector to chassis
TDS 310, TDS 320, & TIDS 350 ln~truction Manual

Front Panel
Horizontal Controls
-—ii
— HORIZONTAL
HORIZONTAL
MENU
SE C) ID I V
0-
The HorizOntal POSITION knob
controls the horIzontal position of all
waveforms.
The HORIZONTAL MENU button calls
up the honzorotal operations menu.
For more Information on hori~c’nfal
operations see page 3-20.
The SEC/DIV knob controls the
horizontal scale of the active
waveforms.
H
Operation

Front Panel
Trigger Controls
The Trigger Status Lights
Indicate the Status Of the
iri~gering system. The ThIGD
light illuminates when the
iFJ$frunJeflt recognizes a valid
trigger.
The READY light illuminates
when the instrument can accept
a valid trigger and is waiting for
that event to occur.
C) TI~!G’D
U READY
The Trigger LEVEL knob controls
the trigger.
The TRIGGER MENU bUtton calls
up the trigger menu. See
page 3-25 for more hlfornJatIOn
on triggering.
TRIGGER
SET LEVEL
TO 50%
FORCE
T~GER
The SET LEVEL TO 50% button sets
the (rigger ievol at the half-way point
between the peaks of the tngger
signal.
The FORCE TRIGGER button forces
the oscilloscope to start acquiring a
waveform regardless of whet her a
trigger event occurs. This button has
no effect if tile acquisition system is
stopped.
lIDS 310, TDS 320, & TOS 350 Instruction Manual

—
Operation
Front Pa~eI
Miscellaneous
Controls
The MEASURE button calls up the
automated measurements menu.
See page 3-29 for more information
on autO~flated measurements.
The UTILITY button calls up the utility
menu. See page 3-45 far more
information on utilities.
The AUTOSET button automatically
sets up the instrument to produce a
usable display of the input signals.
For more on the autoset function,
see page 2-11.
The RUN/STOP button starts
and stops acquisition.
The HARDCOPY button starts
print operations. See page 3-41
for more in? ormstiOfl On making
har~l copies.
SAVE/AECALL
SETUP CURSOR
The General Purpose Knob controls
many side menu functions, including
the cursors. the TOGGLE button
switches control from cur5or 10
cursor.
The SAVEIRECALL. SETUP button
calls up the save/recall setup menu.
See page 3-43 for more information
On 5aving and recalling setups.
ACQUIRE
The 4COUIRE button calls tip the
acquisition menu. See page 237
for more information on
controlling acquisition.
El
El
The CURSOR button calls up ~he
cur5or menu. See page 3-33 for
Information on making
measurements with cursors.
The DISPLAY button calls up the
display menu. See page 3-39 for
informatiOn on controlling the
display.
3-B

Display Map
The Status Readouts show trigger status
(stopped, waiting for trigger, etc.) and
acquisition status (mode and sampling
rate or number of acquisitions).
The side menu offers
a choice of specific
actions.
The Trigger Readout
shows the trigger source
and level and whether
the instrument is
triggered on the rising or
falling edge of the
waveform.
The value entered with When the general purpose
the general purpose knob is first assigned, the
Trigger position (T). knob, knob icon appears here.
Trigger Level: —1 OmV
Run: 2OMS/s Sample
indicates
position of
vertical bar
cursors in the
waveform
record.
Shows what part of the wave form record is displayed.
The waveform
record icon.
Trigger level
indicator
Trigger point
indicator
Channel Ground
Indicator
Cursor measurement
readouts. See
page 3-33 for more
in formation on cursors.
The Channel Readout
shows the VOLTS/DIV
of all active channels.
The main menu offers
a Choice of major
actions.
The Time Base Readout
shows the time base setting.
M indicates (M)ain time base,
D indicates (D)elayed time
base.
When in video trigger
mode, the readout
displays source and
trigger feature (Field 1,
Field 2, or Lines).
los 310, TDS 320. & TDS 350 Instruction Manual

Front Panel
Inputs
The channel BNC inputs (CHI The EXT TRIG in put accepts
and CH2) accept electrical external trigger signals. See
signals for display. page 3’26 for more information
on external triggering.
Operation

~1d
Rear Panel
The Option 14 Panel (Option 14
instruments only) allows access to
three communications interfaces: a
Centronics parallel port, an RS-232
interlace, and a GPIB interface.
The power connector accepts line
voltage to power the instrument. See
page 1-3 for a list ofpower cord and
connect or options.
The fuse drawer holds the line fuse.
See page 8’9 for fuse replacement
procedures.
You can use the Centronics, RS-232,
and GPIB interlaces to transmit
hardcopy data; see page 3-41 for
hardcopy procedures.
You can use the GPIB and RS-232
interfaces to operate and program the
oscilloscope from a GPIB controller;
see the TOS 310, 320, & 350
Programmer Manual for more
in formation. information.
F.
TDS 310, TDS 320, & TDS 350 Instruction Manual

CH 1
CH 2
Ext
Ext(lO
AC Line
DC
AC
HF Reject
LF Reject
Noise Reject
Figure 3-2: Primary Functions Menu Map
3-74 Operation
Menu Maps
Side Menu
TRIGGER
MENU
P
C—
Lett-most
main menu
button
Pop-up
Type
Edge
Main Menu
Source
Coupling
Slope
Level
Mode
Holdotf
Side Menu
ii,
Cdl
TRIGGER Main Menu 0h2
MENU Ext
o Pop-up - ,~, Ext~1O
AC Line
I Source
— Type Trigger On I Field 1
Video Field 2
Lines
Left-most Mode
button
Auto main menu Holdoft ~ Set to Mm Normal
Holdofl
I Rising
Falling
~ Level
SelloUt
Set to ECL
Set to 50%
Auto
Normal
Holdotf
Setto Mm
Side Menu
II!
HORIZONTAL
MENU I
~
Main Menu
~
Time Base
Trigger Position
}I
I
I
~
Main Only
Intensified
Delayed Only
Delayed Runs
After Main
Pretrig er
Setto~O%
Setto5O%
Set to 90%
Side Menu
-~ SideMenu~ -
DC
Main Menu AC
GND
VERTICAL Coupling Invert Oft
MENU Invert ,,.,,_.,.,..j I Invert On
C Bandwidth
Fine Scale ‘“‘~••Lj Full Bandwidth
Position
Offset Fine Scare
Vertical Position
Set toO Divs
_________ Vertical Offset
Set to 0 V
P
OMATH I
o--I
Ch1i-Ch2
Ch2-Chl
Ch I - Ch 2
Ch 1 ‘Oh 2
I
I
I
I
F
FF
F
F
1•
o REF I
C
Or
o REF 2
C
Side Menu
CR1 I
CR2 I
Save to Ref X
MATH
RefY
I Horizontal Position Lock

Menu Maps
Style
Intensity I
C —1 Readout
Graticule
Format
Frame
Full
YT
XV
Side Menu
Main Menu
~ Sample
Peak Detect
acouine Mode AverageEnvelope
C ~ Stop After Run/Stop Bufton Only
Single Acquisition Sequence
Side Menu
Main Menu
Automated
Measurements
Select
~ Measurement I
Remove Measurement 2
MEASuRE Measurement 3
High-Low
Setup AU Measurements
Reference Gate with V Bar Cursors
Levels
C — Gating •—~~__~ Measurement 4
Histogram
Max/mm
Set Levels In
High Ret
Mid Ref
Low Ref
Figure 3-3: Secondary Functions Menu Map
Side Menu
Mwn Menu
-Vff
H bars CuRSOR Function V bars
Paired
C H Time Units —I 1/seconds (Hz)
Seconds
Side Menu
Main Menu
Vectors
Dots
Vector Accumulate
Dot Accumulate
Overall
Text/G rat
Waveform
Contrast
Side Menu
To Setupi
Main Menu~ To Setup2
Save
To SetuplO
Current
Setup
Recall Setupl
Recall Recall Setup2
Saved
Setup
Recall Recall SetuplO
Factory
Setup OK Confirm
Display T @ Trigger Point
SAVEIREOALL
SETUP
C
Jr
Main Menu Side Menu
Jr
JH
Centronics
Pop-up GPIB
Jr
Config Landscape
Portrait
u~i~ f/O
C Hard Copy
Diag T/L Address
Hardcopy
Off Bus
Cal ______~~~ Formats
RS-232C
Con I/aural/on
OK Confirm
TDS 310, los 320, & TOS 350 Instruction Manual
3-15

- .. .. •.#•qa~ .—.~———~‘-. ..4...V. . .a.. .~ .~ ~ .I.~...._a...... ~.. .. .._.aep.._..,_._~ ..• ... p . I .11 .....i,~i..., 1 ,fl~.r.,..
3
II
Manipulating Waveforms
There are four basic ways to manipulate waveforms with TDS 300 Series
oscilloscopes. -
• You can Change their display parameters wfth the Vertical and horizontal
systems
• You can add, subtract, and multiply them with the waveform math tea -
tu re
• You can save them to and recall them from reference waveform memo -
ries
To access the vertical System features, press the VERTICAL MENU button,
shown in Figure 3-4.
NOTE
The VERTICAL MENU button calls up the vertical menu only if a
channel waveform (CH I or CH 2)/s selected. If a math or refer -
ence waveform is selected, the VERTICAL MENU button calls up
the math or reference waveform menu.
VERTICAL
~1
o OH 1 -~ ~. POSETiON
CI
OCH2
C _____VERTICAL MENU
WAVEFORM Off F
PROSE COMP C
— 5V41.
Figure 3-4: The VERTICAL MENU Button
Figure 3-5 shows the Vertical menu.
TD5 310, TOS 320, & TD5 350 Instruction Manual
3-17
Vertica’ Operations
I
I
I
I
I
11
0 MATH
C,
OREF I
C
OREF 2
C
— Verticai Menu
VOLTSIOiV
0

Manipulating Waveforms
7
Figure 3-5: The Vertical Menu
NOTE
I
E
~!
-x
0
U
ci
LC C~CI~J
Use the vertical menu to performthese tasks.
Select Input Coupling — Press the main menu button Coupling. Use the
side menu to select DC, AC, or ground (GND) coupling.
invert a Waveform -~- Press the main menu button Invert. Use the side
menu to turn invert off and on. When you turn invert on, the selected wave -
form flips” around the zero volt axis. Figure 3-6 shows an inverted pulse
signal.
Invert flips” the waveform, but it does not alter the trigger level
accordingly To obtain a stable trigger after inverting a waveform,
press SET LEVEL TO 50%.
3-lB
OperCtiOfl

—
Manipulating Waveforms
Figure 3-6: Inverting a Waveform
0
U
U
Select Bandwidth — Press the main menu button Bandwidth. Use the
side menu to switch between 20 MHz and full bandwidth.
Make Fine V/div Adjustments — Press the main menu button Fine
Scale to activate the General Purpose Knob. Then use the knob to make
precise adjustments to the vertical scale setting.
Adjust Vertical Position — Press the main menu button Position to
activate the General Purpose Knob. Then, use the knob to adjust vertica~
position or use the side menu to set the vertical position toO divisions.
Vertical position is limited to a range of ± 5 divisions.
NOTE
This selectionperforms the same function as the vertical POSiTION
knob.
Adjust Vertical Offset — Press the main menu button Offset to activate
the General Purpose Knob. Then use the knob to adjust offset or use the
side menu to set the offset toO V. Offset performs the same basic function
as the vertical POSITION knob, but it has a wider range. Use oftset to view a
waveform that has a large DC bias. -
r
Normal Wave! orm —
inverted Waveform —
10k twIn: 200MS/s Sample
RE’
I V 51 2SOflS
RQI I 1V 25011$
I Source Coupling
I Type C112 DC
I Edge
Slope
012 x 401,V
Level mode Hoidolt
40111V Auto 5000$
105 310, lOS 320, & TOS 350 Instruction Manual
3-19

Manipulating Waveforms
Horizontal To access horizontal system features, press the HORIZONTAL MENU
Operations button, shown in Figure 3-7. Figure 3-8 shows the horizontal menu. p
11OR~Z0NTAL~
P051110W
0
HORIZONTAL
MENU
c:::::~—--—----—-~ Hoñzontal Menu
SEC/Div
0
Figure 3-7: The HORIZONTAL MENU Button
____ U
____ U
L~I~II~
Figure 3-8: The Horizontal Menu
Use the horizontal menu to performthese tasks.
3-20 operation
Teic Run: 200MS/s Sample
Oela~’ Tüue- 1.00 5~s
~nne~seI
I ritensilled
U
ii
I
I
Ii 250115 Clii 1 —30 OlnV
~Po~o~nTTTh
DeI~yed OI,ly
Set to Mill
I

Manipulating Waveforms
Select the Time Base — Press the main menu button Time Base. Use
the side menu to select from these options.
• Press Main Only to show only the main time base.
• Press Intensified to show both the main and delayed time bases. The
oscilloscope intensifies a portion of the waveform; this intensified zone
indicates the location of the delayed time base with respect to the main.
Use the SEC/DIV knob to change the length of the zone and the Gener -
al Purpose Knob to change its position.
• Press Delayed Only to show only the delayed time base.
• Use the General Purpose Knob to adjust the delay time (the interval
between the main and delayed time bases). You adjust the delay time in
coarse increments when Main Only or Intensified are selected and in
fine increments when Delayed Only is selected. The side menu selection
Delayed Runs After Main shows the delay time.
• Press SET to Mm to set the delay time to its minimum value.
Adjust Horizontal Trigger Position — Press the main menu button
Trigger Position. Use the General Purpose Knob to adjust horizontal
e
trigger position, or use side menu selections to set the trigger position to
10%, 50%, or 90% of the waveform record.
Displaying Math TDS 300 Series oscilloscopes can add or multiply the two channel wave-
Waveforms forms or subtract one from the other and display the result as a math wave-
form. To activate the math waveform, press the MATH button, shown in
Figure 3-9.
VERTICAL
o CH I a. POSITION
~Iv
OCH2 I
~ I VERTICAL
MENU
lcD
I VOLTS/DIV
OREF 1
(~2
WAVEFORM OFF
Figure 3-9: The MATH Button
0 MATH
Math
PROBE COUP
TDS 310, TDS 320, & TDS 350 Instruction Manual
3-21

Manipulating Waveforms
Then select a formula from the side menu (Chi + Ch2, Chi — Ch2, Ch2 —
Chl, or CH1 * Ch2). Figure 3-/0 shows a square wave on Channel 2 added
to a sine wave on Channel 1.
Figure 3-10: A Math Waveform
TDS 300 Series Oscilloscopes have two reference waveforms. You can use
the reference waveforms to store live” waveforms (channel and math wave-
forms). You can also shift a stored waveform from one reference waveform
to the other.
Reference waveforms respond just like live waveformsto changes in vertical
position and scale, but they do not respond to horizontal scale adjustments.
There is no way to horizontally expand a reference waveform.
To save a live waveform to a reference waveform, press one of the reference
waveform buttons (REF 1 or REF 2) shown in Figure 3-11.
E
1
I
Saving and Recalling
Waveforms
F
F
Operation
3-22

IL
VERTICAL
o CH 1 ‘~ ~ POSITION
• cJfl
I OCH2 I
C
I VERTICAL
- I MENU
OMATH1
C -
VOLTSIDIV
OREF1
Ref OIREF2
Ref 2 _—*KJ WAVE;0AM OFF
— PROSE COMP c
/“ svfl.
Figure 3-11: The Reference Waveform Buttons
w
If the selected reference waveform already holds a waveform, it appears on
the screen. A side menu also appears; select one of these options from the
side menu (see Figure 3-12).
• Press Save CH1 to Ref(x) to save the channel 1 waveform to the se -
• lected reference waveform.
• • Press Save CH2 to Ref(x) to save the channel 2 waveform to the se -
lected reference waveform.
• Press Save MATH to Ref(x) to save the math waveform to the selected
reference waveform.
• Press Save Ref(y) to Ref(x) to save the unselected reference waveform
to the selected reference waveform. (For example, Ref2 to Ref 1 or Ref 1
- to Ref2.)
• • Press Horizontal Position to toggle between the Lock and Independent
modes. In Lock mode, the horizontal position of the selected reference
waveform is locked to the live waveforms. In Independent mode, the
selected reference waveform is independently positionable.
NOTE
If you save a waveform to a “full” reference waveform, its previous
contents will be overwritten.
R
TDS 310, TOS 320, & TDS 350 Instruction Manual
3-23