Tektronix PG 506 User manual

PG 506
CALIBRATION
GENERATOR
(SN B040000
AN D U P)

T~Jckronbc
INSTRUCTION
MANUAL
Tektronix, Inc .
P .O . Box 500
Beaverton, Oregon

97077

Serial
Number
COMMITTED TO
EXCELLENCE
PLEASE
CHECK FOR CHANGE
INFORMATION
AT THE
REAR OF THIS
MANUAL .
PG
506
CALI
BRATION
GENERATOR
(SN 8040000
AID UP)
070-3383-00

First Printing NOV
1980
Product Group 75

Revised
APR
1984

Copyright © 1980 Tektronix, Inc
.
All rights
reserved .
Contents of this publication may not
be reproduced in any
form without the written permission
of
Tektronix,
Inc .
Products of Tektronix, Inc .
and
its
subsidiaries are covered
by U .S . and
foreign
patents and/or
pending
patents .
TEKTRONIX, TEK, SCOPE-MOBILE, and

are
registered trademarks of Tektronix, Inc . TELEQUIPMENT
is a registered trademark of Tektronix U .K . Limited .
Printed in U .S .A . Specification and price change privileges
are reserved .
INSTRUMENT SERIAL NUMBERS
Each instrument has a serial number on a panel
insert, tag,
or stamped on the chassis . The first
number or letter
designates the country of manufacture
. The last five digits
of the serial number are
assigned sequentially and are
unique to each instrument .
Those manufactured in the
United States have six
unique digits . The country of
manufacture is identified
as
follows
:
8000000

Tektronix, Inc ., Beaverton, Oregon, USA
100000

Tektronix Guernsey, Ltd ., Channel Islands
200000

Tektronix United Kingdom, Ltd ., London
300000

Sony/Tektronix, Japan
700000

Tektronix Holland, NV, Heerenveen,
The Netherlands

TABLE OF
CONTENTS
Page
LIST OF
ILLUSTRATIONS ................ . . ii
LIST OF TABLES . ... ..................... . .
Section
1 Specification . . ................
1-1
Section 2 Operating
Instructions ........... 2-1
WARNING
THE
FOLLOWING SERVICE INSTRUCTIONS ARE
FOR
USE
BY QUALIFIED PERSONNEL ONLY . T O
AVOID PERSONAL INJURY, DO NOT PERFORM
ANY SERVICING OTHER
THAN THAT
CONTAINED IN
OPERATING INSTRUCTIONS
UNLESS YOU
ARE QUALIFIED TO DO SO .
Section 3 Theory of Operation .............
3-1
Section 4
Calibration Procedure ............ 4-1
Performance Check
.... ....... 4-3
Adjustment Procedure .... ..... 4-12
Section s Maintenance ............. .....
5-1
Section 6
Options ................. . . . . . 6-1
Section ? Replaceable Electrical Parts . . . . ...
7-1
Section 8
Diagrams and Illustrations ......... 8-1
Section 9

Replaceable
Mechanical Parts ...... 9-1
PG 506 (SN 8040000 & up)

PG 506 (SN
8040000 & up)
LIST O F
I LLUSTRATI ONS
Fig .
No .

Page
PG 506 Calibration
Generator ........

vi
2-1

Plug-in installation and
removal ....... 2-2
2-2

PG
506 controls and connectors ......
2-3
2-3

OutputsignalsfromthePG
506Cafibration
Generator ............ .... ......
2-6
2-4

Risetime Berating
graph ...... . ..... 2-7
2-5

Typical
waveforms showing correct
and
incorrect compensation
adjustments ... 2-8
2-6

Typical
lowfrequency response curve . .

2-9
2-7

Distortion of square waves
caused by low
frequency effects .................

2-9
2-8

Typical waveform
showing ringing at front
corner ... .
.... .................
2-9
3-1

DVM timing diagram for a negative
input to
the integrator U460 .... ............
3-4
4-1

Attenuator
connections for current source
4-4
4-2

Typical response curve of
sampling system 4-9
4-3

Typical sampling
oscilloscope response
display ... .
.... . ... ........... .
4-10
4-4

Typical
sampling oscilloscope response
display ...... ........ .
......... 4-10
4-5

Adjustment
locations for the A1 Main
circuit board .... ............ ....
4-13
4-6

Adjustment locations
for the A2
DVM/Period
circuit board . . .........
4-14
4-7

Adjustment
locations for the
A3 Fast Rise
Output circuit board .......... .....
4-16
4-8

Typical response curve
as displayed on the
sampling system
............... . .
4-17
4-9

Typical response curve as displayed on
the
sampling oscilloscope . . ............

4-17
5-1

Pin assignments
for the PG 506 (rear view,
partial) .......
........ . . .......
5-3
5-2

Main interface board (partial)
showing
amplitude and trigger
output cable
connections ............ ....... ..
5-4

LIST OF TABLES
Table
No .

Page
1-1

Electrical
Characteristics . . .........

1-1
1-2

Environmental Characteristics .......

1-3
1-3

Physical Characteristics . . . ........

1-3
2-1

Output Load Vs . Voltage Out ........

2-5
4-1

Test
Equipment Required .... ......

4-1
4-2

Standard Amplitude (into 1 Mfg) Within
0 .25%, fl ~V ............. ......

4-3
4-3

100 V do Range DEFLECTION ERROR
Resolution Tolerances ...... ......

4-5
4-4

10 V do Range DEFLECTION
ERROR
Resolution Tolerances ....... .....

4-5
45

Standard Amplitude into a 50 O Load . .

4-5
46

Fast Rise and High Amplitude Output
Period ..... ..................
.

4-7
5-1

Selected Component Criteria ....... .

5-1
5-2 RelativeSusceptibilitytoStaticDischarge
Damage .... . ..................
5-5
PG 506 (SN 8040000
& up)

PG 506 (SN 8040000
& up)
OPERATORS SAFETY
SUMMARY
The general safety information
in this part ofthe summary

supply conductors
or between either supply
conductor
is for both operating and
servicing personnel . Specific

and
ground . A protective ground
connection by way of the
warnings and
cautions will be found throughout
the

groundingconductor in
the power cord is essential for
manual
where they apply, but may not appear
in this

safe operation
.
summary .
TERMS
This product is grounded through the
grounding conduc
In This
Manual

for of the power cord . To
avoid electrical shock, plug the
power cord into
a properly wired receptacle before
CAUTION statements
identify conditions or practices
that

connecting to
the product input or output terminals .
A
could result indamagetotheequipmentorotherproperty
.

protective ground connection by way of
the grounding
conductor in the power cord is
essential for safe opera
WARNING statements
identify conditions or practices

tion .
that could result
in personal injury or loss of life .
As Marked on
Equipment
CAUTION indicates a personal
injury hazard not im-
mediately accessible
as one reads the marking, or a
hazard to property
including the equipment
itself .
DANGER indicates a personal
injury hazard immediately
accessible as one reads the marking
.
SYMBO LS
To avoid fire hazard, use
only the fuse of correct type,
voltage rating
and current rating as specified in
the parts
In This Manual

list for your product .
This symbol indicates where
applicable
QI

cautionary or other
information is to be
found .
As Marked on
Equipment
DANGER
- High voltage .
Protective ground
(earth) terminal .
ATTENTION - refer to
manual .
Grounding the
Product
Danger Arising From Loss of
Ground
Upon loss
of the protective-ground connection,
all
accessible
conductive parts (including knobs
and con-
trols that may appear to be
insulating) can render an
electric shock .
Use the Proper
Fuse
Refer fuse replacement to
qualified service personnel
.
Do Not Operate in Explosive
Atmospheres
To avoid
explosion, do not operate this
product in an
explosive atmosphere unless
it has been specifically
certified for such
operation .
Do Not Operate
Without Covers (for TM 500
plug-
ins
only)
Power Source To
avoid personal
injury, do not operate this product
This product is intended to operate
from a power source

without covers
or panels installed . Do not apply
power to
that will not apply more
than 250 volts rms between the

the plug-in
via a plug-in extender .

SERVICE SAFETY SUMMARY
FOR
QUALIFIED SERVICE PERSONNEL
ONLY
Refer also to the preceding Operators
Safety Summary .
Do
Not Service Alone

Disconnect power before removing
protective panels,
soldering, or replacing
components .
Do not perform
internal service or adjustment of this
product unless another person capable of rendering first
aid and resuscitation is present .
Power Source
PG 506 (SN 8040000 & up)
This product is intended to
operate from a power source
Use Care When Servicing With Power On

that will not apply more than 250 volts rms between
the
supply conductors or between either
supply conductor
Dangerous voltages
exist at several points in this product .

and ground . A protective
ground connection byway of the
To avoid personal
injury, do not touch exposed connec-

grounding conductor
in the power cord is essential for
lions and components
while power is on .

safe operation
.

PG 506 (SN8040000 &
up)
PG 506 Calibration
Generator

Performance Conditions

Items listed in the Performance
Requirements column
The electrical characteristics are
valid only if the

of the
ElectricalCharacteristicsareverifiedbycompleting
PG 506 has been calibrated at
an ambienttemperature

the Performance Check
in the Service Section of this
between+20°Cand+30°C
and is operating at an ambient

manual
. Items listed in the Supplemental
Information
temperature between 0°Cand
+50°C . Forced air circula-

column are not verified in this manual
. They are either
tion is required
for ambient temperatures above +40°C .

explanatory notes or
performance characteristics for
which no limits are
specified .
Characteristics

Performance
Requirements

Supplemental
Information
Range (Peak-to-Peak)
1 MSl Load

~

200 ~V to 100 V
Accuracy

~

Within 0 .25°/a
t1 ~cV
50 S2 Load

I

100 ~V to 5 V
Accuracy

~

Within 0 .25% t1pV
Period

Approximately 1 ms
(1 kHz square wave,
chopped DC)
Deflection Error Readout
Range

+ and - 7 .5%
Resolution

Within 0 .1%
HIGH
AMPLITUDE OUTPUT
Amplitude (Peak-to-Peak)
Unterminated

I

~6 V to ,60 V
50
! ;2
Load

I

~0 .5 V to ~5 V
REVDEC 198 1
SPECIFICATION
SPECI
FI CATI O N
Table 1-1
ELECTRICAL CHARACTERISTICS
STANDARD AMPLITUDE OUTPUT
Section 1-PG 506 (SN 8040000
& up)
_

Polarity

Positive, measured from a negative
potential to ground .