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TEKTRONIX+
INSTRUCTION MANUAL
Tekt ronix, Inc.
P.O. BOX 500
Beaverton, Oregon 97005 Serial Numbw
1.
AFRIL 19%
070-1414-00
A IR F ORCE
Apr 79-ZOO-nEPRIm
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F,RGM
TEKTPCJNIX,
INC. FSD
_ .
.
. . .--...
__.-_. . .
TEK INTER-OFFICE
TO
John Martin
FnOM
Frank Gray, SO-PAT
6. ZS. 1991 13:49
p. 2
COMMUNICATION
.
94-540
>,-I’ t
Juno 25, 1991
SlJ%fC.T
GXDEPpermit request
In reeponse to the request to grant pemissLon to the
Government
Industry
Exchange Pro ram
Tektronix operator, marvice and
P
(CPDEP) to reproduce
nstruction
manuals,
Tektronix, fnc. hereby grants such permission
for diatrlbution
of such documents to any GIDEP 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 tigend HReproduded with
permieeion.*
This
permission has been approved by the Intellectual
lropsrt committee OF Tektronix,
be prov ded
and a copy of this memo may
to GIDEP to provide the requested permission.
geG&Ay
Group Pa&t Coumal
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*9
‘ T
SECTION 1
SECTION 2
SECTION 3
SECTION 4
577.010~02 Service
TABLE OF CONTENTS
SPECIFICATION
Introduction
Characteristics
Electrical
Collector Supply
Step Generator
Display Amplifiers
Indicator and CRT (Display
Module)
Power Input
Environmental
Temperature
Altitude
Transportation
Physical
Net Weight
Dimensions
OPERATING INFORMATION
Introduction
Preliminary
Function of Controls
577
01 and D2
Familiarization
CIRCUIT DESCRIPTION
General
Block Diagram Description (577)
Circuit Dewiption (677)
Power supply
Step Generator
Step Amplifier
Horizontal Amplifier
Vsrtical Amplifier
Collector Supply
Block Diagram Dsscription
(Dl and 02)
Circuit Description (01 and D2)
Deflection Amplifier
CRT Circui t
l i igh.Voltage Regulator
High-Voltage Output
CRT Control Circui ts
Swags Circuit (01 only)
MAINTENANCE
Introduction
Preventive Maintenance
General
Cleaning
Lubrication
Visual Inspection
Page
1.1
1.1
1-2
1-2
l-3
1-3
1-3
1-3
I-3
I-3
1-3
2-l
2.1
2-l
2-3
2-3
3.1
3~1
3.1
3-2
3-5
3.8
3-8
3-10
3.10
3.11
3-11
3-11
3.12
3-12
3.12
4.1
4-l
4.1
4.1
4.1
Transistors and Integrated Circuits 4-1
Recalibration
42
SECTION 4
SECTION 5
SECTION 6
SECTION 7
SECTION 8
MAINTENA NCE (cont j Page
Troubleshooting
Introduction
42
Troubleshooting Equipment
4-2
Troubleshooting Aids 42
Circuit Board Removal and
Replacement
Rem oval of Main Circuit Board
4.3
Replacing the Main Circuit Board 4-3
Replacing the Side Rail
4-6
Removal of the Col lector Sweep
Board 46
Acce ss to Power Supply Circuit
Board 4-6
Rem oval o f Power Supply Circuit
Board
4-6
Miscellaneous
Max Peak Vol ts-Series Rssistors
Knob Alignment
4.7
Removal of Display Uni t f rom
Mainframe
4.7
Removal of 577.Test Fixture
Interface connector 4.7
Replacement of 577.Test Fixture
Interface connector
4.7
CHECK AND ADJUSTMENT PROCEDURE
Introduction
5.1
Son&s Available 5-l
Tes t Equipment Required
5-l
Short-Form Performance Cheek
Procedure 5.1
Performance Check
5-3
Short-Form Adjustnwnt Procedure 5-23
Adjustment Procedure
5.24
ELECTRICAL PARTS LIST
577
01
D2
DIAGRAMS
Diagrams and Circuit Board
Illustrations
7~1
Vol tage and Waveform Tert
Conditions
7-2
Location of Tes t Points and Adiustmen t$
Diagrams
Circuit Board Il lustrations
MECHANICA L PARTS LIST
Mechanical Parts List
Mechgnical Parts List Il lustrations
8-l
CHANGE INFORMATION
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The 577-01
or 02 Curve
Tracer and Disalav
Unit
is the
mainframe of a curve tracer ~ystcm. The plug-in test
fixtures are covered in separate service manuals.
The system is a dvnamic curve tracer that permits the
display of characteristics of a variety of devices.
The 577 isdesigned to bolt to the display module that is
available in either a storage (01) or non-storage
(WZ)
ersion.
*
3.5 kV accelerating potential ensures a bright display on
the 8 x 10 division (IBinch DI 1.27 cm/&v) internal
b
graticule.
The 577 features include pulsed steps, calibratetl step
offset. step polarity tracking with collector supply polarity,
independen t horizontal and vertical magnifiers, and auto.
matic display positioning when used with the 177 Test
Fixture. When urcd with the 177 Test Fixture. the display
dims automatically when the collector supply
voltage
is
reduced r” zero.
The collector supply. 0 to 1600 volts in five ranges. is
continuously variable within each range.
A step qenerator supplies either current or voltage steps.
Current steps are 5 nA/Step to 200 mA/Step and voltage
steps we 5 mV/Step t0 2 V/Step. Single or repetitive steps
of up to IO Steps per family (approximately 1 to 95 stepa
per family in STEP X.1) can be applied to the device under
test.
When using the 177 Standard Test Fixture, vertical
current limiting protects the device under test. When the
device under test current cauw the display to exceed 2.5
times full-screen vertical deflection for a short time, the
collector supply is disabled if the MAX PEAK POWER
WATTS setting is above .6 for serial numbers B010200,and
up (577-01) and 8010120 and up (577.D2),or theSERIES
RESfSTORS witch is below 8 k for serial numbers below
8010200 (577.Dl) and 8010120 (577.WZ).
The horizontal display amplifier measures voltage ranging
from 5 mV/DIV to 200 ViDlV and base voltage from
5mViD lV TO ZVIDIV,. The STEP GEN position of the
HORlZ VOLTS/DIV witch permits the step generator
output to be displayed. Illuminated knob+.kirt readout is
provided on the horizontal and base-step switches.
A safety ‘interlock provides operator protection from
hazardous potentials. Interlock can be defeated from the
test fixture.
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
POWW
sources where both
currentarrying conductors are live with respect to earth
(such as phase-twphase on a threewire system) is not
recommended, since only the Line Conductor has
over.c”rrent (fusel’protection within the instrument.
This instrument has a threewire 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 the instrument frame. For
electric-shock protection, insert this plug only in a mating
outlet with a safety-earth contact. The color-coding of the
cord conductors is in accordance with recognized standards.
The electrical and environmental characteristics shown
are valid for instruments operated in an ambient
temperature range from +l@C (t5O”F) to +40°C (t104”F)
after a five-minute warmup, if calibrated at t2O”C (t58”FJ
to
t3o c
(+86’~).
CHARACTERISTICS
ELECTRICAL
hllectnr sllnolv
~~~~
oltage anges
I
6.5 V 25 v
I
IOOV I 4oov I 16OOV
Max PI--’
- ~~~~~~- .^ . 1
^_.
--
--A 1 0.15A 1 0.04A
-..--,
.Pz s
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