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7313/R7313
Instruction Manual
43 pgs2.94 Mb0

Tektronix 7313/R7313 Instruction Manual

7313/R7313
I
OSCILLOSCOPE
MTM
OPTIDMS
OPERATORS
7313lR7313 Operators
TABLE OF CONTENTS
LlST OF ILLUSTRATIONS LlST OF TABLES
SECTION 1 OPERATING INSTRUCTIONS
Preliminary Operation
Safety Information
Operating Voltage Plug-In Units Controls and Connectors
External Internal
Familiarization Procedure
Set-Up Information Display Controls Vertical and Horizontal System Controls Calibrator and Triggering Controls Storage Controls
General Operating Information
Intensity Controls Display Focus Graticule Beamfinder Vertical Mode Trigger Source Readout (Deleted by Option
1) Storage Operation Calibrator Signal Outputs
Remote Single Sweep Reset
(Delete with Option 7) Display Photography X-Y
Operation Intensity Modulation Raster Display Applications
SECTION
2
SPECIFICATION General
Standard Accessories
System Specifications
SECTION
3
RACKMOUNTING INSTRUCTIONS
lnstrument Dimensions Rack Dimensions Slide-Out Tracks Mounting Procedure
Removing Or Installing The lnstrument Slide-Out Track Lubrication
SECTION
4
INSTRUMENT OPTIONS
Option 1
Option 3 Option
5
(Rackmount lnstrument only)
Option 7
Page
I
I
iii
7313lR7313 Operators
Figure
1-1
LIST OF ILLUSTRATIONS
Page Frontispiece Location of voltage selector, spare
jumper, and alternate fuse in power unit
(7313 shown).
Front-panel controls and connectors.
Rear-panel controls and connectors.
Location and function of internal
selectors.
Definition of measurement lines on the 7313lR7313 graticules.
Location of the readout on the crt identifying the originating plug-in
compartment and channel.
Slideout track assembly.
Vertical mounting position of the left stationary section and location of the
thumbscrew securing hole. These
dimensions also apply to the right front rail.
Details for mounting stationary sections.
Installing and removing the instrument.
Adjusting the slide-out tracks for smooth sliding action.
R7313 dimensional drawing.
7313lR7313 Operators
LIST
OF
TABLES
Table
1-1 Color Coding of Cord Conductors
1-2 Regulating Range and Fuse Data
2-1 Electrical Specifications
2-2 Environmental Specifications
2-3
Physical Specifications
2-4 System Vertical Specifications
4-1 Option Information Locator
Page
1-1
1-2
2- 1
2-7
2-7
2-8
4- 1
NOTE
Refer to the
7313lR7313 Service manual for circuit description, maintenance, calibration, diagrams, and parts replacement information.
7313JR7313
FEATURES
The
Tektronix
7313/RJ313
Oscilloscope
is a solid-state instrument designed for general-purpose application where
display storage is desired along
with
high performance conventional (non-store) operation.
This
instrument has three plug-in
compartments that accept Tektronix 7-Series plug-in units
to
form a complete measurement sysrem.
The
two plug-in
compartments on the left are connected
to
the vertical deflection system. The right plug-in compartment
is
connected to the
horizontal deflection system. Eleczronic switching between the vertical
plug-in
compartments
allow
a
multi-trace vertical
display. The flexibility of this plug-in feature
and
the
variety
af
plug-in units available allow this system to be
used
for many
applications.
The cathode
ray
tube is a direct view. bi-stable storage tube having an
8 x 10
division display area divided into two
4
x
10
division storage screens,
The
storage screens are independently controlled
for
split screen applfcations. A non-storing
area to the left of the storage screens permits
beam
location without disturbing a stored display. Regulated
dc
power supplies
assure that performance
is
not affected
by
variations
in
line voltage and frequency, or by changes in load due to varying
power requirements of the plug-in units.
The
7313/R7313
operates from
a
115
volt
or
a
230
volt nominal line voltage source.
7313/R7313
Operators
8
Section 1-731 3lR7313 Operators
OPERATING INSTRUCTIONS
To effectively use the 7313/R7313 Oscilloscope, the the instrument frame.
for electric-shock
protection, insert operation and capabilities of the instrument must be this plug only in a mating outlet with a safety-earth known. This section describes the operation of controls contact, or otherwise connect the frame to a safety-earth and connectors and gives basic and general operating system. The color-coding of the cord conductors is in information. accordance with recognized standards as shown in
Table
1-1.
PRELIMINARY OPERATION
Power Cord Conductor Identification
SAFETY INFORMATION
Conductor Color Alternate Color
This instruction manual contains informative and war-
ning text which the user must follow to ensure safe
Ungrounded (Line)
Black
White
operation and to retain the instrument in safe condition.
Grounded (Neutral) Grounding (Earthing) Green-Yellow Green-Yellow
AC POWER SOURCES.
This instrument is intended to be operated from a single-phase earth-reference power source having one current-carrying conductor (the Neutral Conductor) near earth potential. Operation from power sources where both current-carrying conductors are live with respect to earth (such as phase-to-phase on a three-wire system) is not recommended, since only the
Line Conductor has over-current (fuse) protection within
the instrument.
AC POWER CORD.
This instrument has a three-wire power cord with a three-terminal polarized plug for connection to the power source and safety earth. The safety-earth terminal of the plug is directly connected to
OPERATING VOLTAGE
The 731 3/R7313 can be operated from either a 11 0-volt
or a 220-volt nominal line-voltage source. In addition,
three operating ranges can be selected within each nominal line voltage source. Use the following procedure to obtain correct instrument operation from the line voltage available:
1.
Disconnect the instrument from the power source.
REV.
C,
AUG.
1976
Operating Instructions-7313/R7313 Operators
2. To gain access to the voltage selector jumper, nominal line voltage. Use the fuse located in the Alt Fuse
perform the applicable procedure which follows:
holder on the Rectifier board (see Fig. 1-1 for location and Table 1-2 for fuse type). Also change the line-cord plug to
7313. ~emove three screws from each sideof the Power
match the power-source receptacle or use a suitable
unit. Slide the power unit out of the rearof the chassis (see
adapter,
Fig. 1-1).
R7313. Remove the top cover and remove the power unit from the rear of the instrument. See Power Unit Removal in the Maintenance section.
CAUTION
This instrument may be damaged if operated with the Line Selector set to the incorrect positions for the line voltage applied.
3. To convert from 110-volts to 220-volts nominal line voltage, or vice versa, remove the voltage-selector jumper and replace it with the spare jumper stored on the pins adjacent to voltage selector area (see Fig. 1-1). The jumpers are color coded to indicate the nominal voltage for which they are intended; brown for 110-volt nominal operation and red for 220-volt nominal operation. Change the rear-panel fuse to provide protection for the selected
4. To convert the instrument from one regulating range to another, remove the voltage selector jumper and reinstall it on the set of pins that represents the desired regulating range. Select a range that iscentered about the average line voltage to which the instrument is to be connected (see Table 1-2).
TABLE
1-2
Regulating Range and Fuse Data
REMOVE THREE
SCREWS FROM EACH
RECTIFIER
REMOVE POWER UNIT
FROM OSCILLOSCOPE
I
Pins Selected
LOW MED
HI Line Fuse
Fig.
1-1.
Locations of voltage selector, spare jumper, and alternate fuse in power unit (7313 shown).
Regulating Range
110-volts nominal
90 to 110 volts 99 to 121 volts
108 to 132 volts
3.2 A slow-blow
220-volts nominal
180 to 220 volts 198 to 242 volts
218 to 262 volts
1.6 A slow-blow
Operating Instructions-7313fR7313 Operators
PLUG-IN UNITS
The 7313lR7313 is designed to accept up to three Tektronix 7-series plug-in units. This plug-in feature allows a variety of display combinations and also allows selection of polarity, sensitivity, display mode, etc. to meet the measurement requirements. In addition, it allows the oscilloscope system to be expaned to meet future
measurement requirements. The overall capabilities of the
resultant system are in large part determined by the characteristics of the plug-in selected. Refer to the Tektronix Products catalog for specifications of plug-in
units currently available.
To install a plug-in unit into one of the plug-in compartments, align the slots in the top and bottom of the plug-in with the associated guide rails in the plug-in compartment. Push the plug-in unit firmly into the plug-in compartment until it locks into place. To removea plug-in, pull the release latch on the plug-in unit to disengage it and pull the unit out of the plug-in compartment. Plug-in
units can be removed or installed without turning off the instrument power.
All of the plug-in compartments do not have to be filled to operate the instrument; the only plug-ins needed are those required for the measurement to be made. At environmental extremes, excess interference may be
radiated into or out of the instrument through the plug-in
compartments. To reduce such interference, or to meet
EM1 specifications on factory equipped Option 3 or field EM1 modified instruments, all unused plug-in com- partments must be covered with an EM1 shielded blank plug-in panel. Order or use only Tektronix Part No. 016-
0155-00. One is required for each unused compartment.
When the 7313/R7313 is calibrated in accordance with
the calibration procedure given in the service manual, the
vertical and horizontal gains are normalized. This allows
calibrated plug-in units to be changed from one plug-in compartment to another without recalibration. However, the basic calibration of the individual plug-in units should be checked when they are installed in this system to verify their measurement accuracy. See the operating instruc- tions section of the plug-in unit instruction manual for verification procedure.
The plug-in versatility of the
7313/R7313 allows a variety of display modes with many different plug-in units. The following information is provided to aid in plug-in unit
selection.
To produce a single-trace display, install a single- channel vertical unit (or dual-channel unit set for single- channel operation) in either of the vertical compartments; for dual-trace displays, either install a dual-channel vertical unit in one of the vertical compartments or install a single-channel vertical unit in each vertical compartment. A combination of a single-channel and dual-channel vertical unit allows a three-trace display; likewise, a combination of two dual-channel vertical units allows a four-trace display.
Non-delayed single-trace displays can be obtained
with a single-trace time-base unit.
A
dual-trace time-base
unit must be used for delayed-sweep displays.
X-Y displays can be obtained in two ways with the 7313/R7313 system. If a 7B-series time-base unit is available that has an amplifier feature, the
X
signal can either be routed through one of the vertical units via the internal-trigger pickoff circuitry to the horizontal system, or connected to the external horizontal input connector of the time-base unit. Then, the vertical signal
(Y)
is con- nected to the remaining vertical unit. Also, a 7A-series amplifier plug-in can be installed in one of the horizontal compartments for X-Y operation.
Special purpose plug-ins may have specific restrictions regarding the plug-in compartments in which they can be installed. This information will be given in the instruction manuals for these plug-ins. Refer to the Tektronix Products catalog for additional information on plug-in unit selection.
NOTE
Later production of rackmount ocilloscopes are provided with support posts between the individual plug-in compartments.
A
post or posts must be
removed if a multi-width plug-in is to
be
installed. To remove a post, unfasten the screws that secure it at the top and bottom of the plug-in housing.
CONTROLS AND CONNECTORS
EXTERNAL
The major controls and connectors for operation of the
7313/R7313 are located on the front panel of the instru-
ment and several auxiliary functions are provided on the rear panel. Fig. 1-2 provides a brief description of the front-panel controls and connectorsand Fig. 1-3 provides a brief description of the rear-panel controls and connec- tors. More detailed information is given under General Operating Information.
REV. B,
JULY,
1975
Operating
Instructions-7313/R7313
Operators
a
INTENSITY.
Varies brightness of
cit
display.
@
READOUT.
Varies
brightness
of
rsadout
portion
of
cn
display.
@
FOCUS.
Provides
optimum display definition.
@
BEAMFINDER.
Returns
crt
display
by
compressing vertical
and
horizontal deflection within graticuls
area.
@
GRAT
ILLUM. Varier gratieule illumination.
@
TRIG
SOURCE.
Selects
source
of
trigger signal
for
time-bass unit.
@
VERT
MODE. Selects vertical plug-in compartment that provider vertical deflection signal.
@
STORE
(UPPER
and
LOWER).
Selects
storage
operation.
@
ENHANCE
[UPPER
and
LOWER).
Increaser writing
rate
for
storage
of
single
sweep
displays.
10
AUTO ERASE
{UPPER
and
LOWER).
Stores
the
crt
display at
the
end of each
sweep
and inhibits further
O
sweeps
for
a
time selected
by
the
VIEW
TIME
control.
@
ERASE
(UPPER
and
LOWER).
Manually
eraser
stored
diglay.
@
VIEW
TIME.
Determiner variable viewing interval
of
stored display.
@
LOCATE.
Pushbuttan switch unblankr
the
crt
to
pravids
in
indication
of
the
sweep
starting point.
@
INTEGRATE.
Permits
storage
of
very
fast
rap~titive signals.
@
ENHANCE
Level
(Level not labeled).
Provides
a
selectable increase
in
writing
speed
for
single
sweep
displays.
@
CALIRRATOR Pin
jack<
pmvirlr
rl
V,
0.4
V,
and
40
rnV
~utputs
st
a
OM
kilohertz repetition
rate.
Oc
output
can
be
selected
by
an
internal
selector.
@
POWER.
POWER
switch
controls
power
to
the instrurnenl;
POWER
light indicates
that
the
power
switch
is
on
and
the
instrument
is
connected
to
the
pawer
source.
@
Camera
Power
(not
labeled).
Provider
pawer
output
and
receives
remote
single
sweep
reset
for
compatible
camera
systems.
fig.
1-2.
Front-pmel
controls
and
connectom.
Operating Instructions-7313/R7313 Operators
INTERNAL
SET-UP
INFORMATION
Several switch functions are located on circuit boards within the instrument. A brief description of each internal switch is given in the following discussion.
REMOTE ERASE SELECTOR.
Internal multi-pin con-
nector (located on Storage Switch circuit board) to
determine whether the external signal, applied to the
REMOTE ERASE IN connector, erases the upper storage screen, lower storage screen, or both storage screens. See Fig. 1-4 for further information.
CALIBRATOR SELECTOR.
Internal multi-pin connec- tor (located on the Calibrator circuit board) to determine whether the CALIBRATOR output is a one-kilohertz square-wave signal or a dc voltage level. See Fig. 1-4 for
further information.
READOUT MODE SWITCH.
Two-position switch
(located on the Readout circuit board) to determine whether the readout display is present independent of a sweep (free runs) or is triggered at the end of each sweep. See Fig. 1-4 for further information.
VOLTAGE SELECTOR.
Multi-pin connector selects Low, Medium, or High voltage regulating range. The multi- pin connector can be exchanged to select 110-volt or 220-
volt nominal line voltage source. See Fig. 1-1 and
Preliminary Operation, in this section, for further informa- tion.
FAMILIARIZATION PROCEDURE
The following procedure may be used for familiariza- tion with the 7313/R7313 or as a check of basic instrument operation. If performance of the Familiarization Procedure reveals improper calibration or instrument malfunction, first check the operation of the associated plug-in units; then refer to the Calibration and
Maintenance sections of the 7313/R7313 Service Manual.
A Set-Up Status summary, preceding each major section of the Familiarization Procedure, provides the settings of controls and lists the signals connected at that
point in the procedure.
1. Set the front-panel controls as follows: INTENSITY Midrange
FOCUS Midrange READOUT OFF (counterclockwise
into switch detent)
GRAT
ILLUM (screw- Counterclockwise
driver adjustment) VERT MODE LEFT TRIG SOURCE VERT MODE
STORE (UPPER Off (push button out)
and LOWER)
ENHANCE (UPPER Off (push button out)
and LOWER)
AUTO ERASE (UPPER
Off (push button out)
and LOWER)
2. Connect the
7313/R7313 to a power source that
meets the voltage and frequency requirements of the
instrument. If the available linevoltage is outside the limits
of the Voltage Selector, see Operating Voltage discussion
in this section.
3. Insert Tektronix 7A-series amplifier units into both the Left Vertical and Right Vertical compartments. lnserta 76-series dual time-base unit into the Horizontal compart-
ment.
4. Turn the POWER switch ON. Allow several minutes
warm-up so that the instrument reaches a normal operating temperature before proceeding.
5.
Connect a BNC-to-pin-jack cable from the 4 V CALIBRATOR output to the amplifier unit installed in the Left Vertical compartment.
6.
Set both vertical units for a vertical deflection factor of two volts/division and center the vertical position controls. Set both vertical units for ac input coupling.
7. Set the time-base unit in the Horizontal compartment
for a sweep rate of one
millisecond/division. Set the triggering for the auto mode, internal source, ac coupling, and adjust for a stable display. Position the display as
necessary.
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