Tektronix CG 5001 User manual

Tektronix , Inc.
P.O. Box 500
Beaverton
,
Oregon
070-4767-00
Product Group
76
97077
Tektronix
COMMITTED TO
EXCELLENCE
PLEASE
CHECK FOR
CHANGE
INFORMATION
AT THE
REAR
OF
THIS
MANUAL .
CG
5001 /
CG
551AP
PROGRAMMABLE
CALIBRATION
GENERATOR
(
SN
B050000 &
UP
)
VOL 2
With
Options
INSTRUCTION
MANUAL
Serial
Number
First Printing SEP 1983

Copyright
©
1983 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
registered
trademarks of
Tektronix
,
Inc.
TELEQUIPMENT
is
a
registered
trademark of
Tektronix
U.K.
Limited
.
KTRONIX
Printed in U.S.A. Specification and price change privileges
are
reserved
.
INSTRUMENT SERIAL NUMBERS
are
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
Tektronix
Guernsey
, Ltd. ,
Channel
Islands
100000
200000
Tektronix United Kingdom , Ltd. , London
300000
700000
Sony
/ Tektronix
, Japan
Tektronix Holland , NV , Heerenveen ,
The Netherlands

LIST
OF
ILLUSTRATIONS
LIST
OF
TABLES
.
.
OPERATORS
SAFETY
SUMMARY
SERVICE
SAFETY
SUMMARY
Section 5
CALIBRATION
TABLE
OF
CONTENTS
Introduction
...
Test
Equipment
Required
Calibration
Interval . . .
PERFORMANCE
CHECK
Purpose
..
Limits
and
Tolerances
.
Equipment
Required . .
Preparation ..
List of
Performance
Checks
Preliminary
Instructions
Voltage
Amplitude Mode
Current
Amplitude
Mode ..
Low
Amplitude
Edge
Mode
High
Amplitude
Edge
Mode
.
Markers
Mode
Slewed
Edge
Mode .
.
GPIB
Interface
Test . .
ADJUSTMENT
PROCEDURE
Introduction . ...
Services
Available
Limits
and
Tolerances ..
Internal
Adjustments
...
Equipment
Alternatives and
Partial
Procedures
Preliminary Procedures .
Adjustment
Steps
. .
.
Section 6
MAINTENANCE
Cleaning
Visual
Inspection
..
Semiconductor
Checks
.
.
●
.
Page
iv
V
vii
PREVENTIVE
MAINTENANCE
....
6-1
Introduction
..
6-1
Static
-
Sensitive
Components
...
6-1
6-2
6-2
6-2
5-1
5-1
5-1
5-4
5-4
5-4
5-4
5-4
5-4
5-4
5-5
5-9
5-11
5-15
5-18
5-20
5-22
5-24
5-24
5-24
5-24
5-24
5-24
5-24
5-24
CG
5001
/ CG
551AP ,
Vol . 2
(
SN
B050000
&
Above )
Section 6
MAINTENANCE (
cont
)
General
Troubleshooting
Troubleshooting
Aids ..
Troubleshooting
Equipment
General
Troubleshooting
Techniques
...
INSTRUMENT
DISASSEMBLY
AND
Reference
Board
Output Board . . .
High
Edge Board .
GPIB
Board
BOARD
MAINTENANCE ..
6-8
Circuit
Board
Removal 6-8
Front
Panel
Removal 6-8
Display LED Removal
6-8
Front
Panel
Circuit
Board
6-8
Main
Interconnect
Board
6-8
Time
Interface
Board
6-8
6-8 ..
Time
Mark
Board .
Power
Supply
Boards
6-8
Power
Supply
Interface
Board . .
6-11
.
Introduction ..
Obtaining
Replacement
Parts
Soldering
Techniques .
Component Removal and
Replacement
Adjustment
After
Repair
...
CG
551AP
DIAGNOSTIC
PROCEDURES
...
Introduction
...
Equipment
Required
Adjustment and
Test
Point
Locations
Self -
Test
Description
CMOS
Test
RAM
Test
ROM
Test .
Shift
Register
Test
Page
6-3
6-3
6-6
CORRECTIVE
MAINTENANCE
...
6-13
6-13
6-13
6-13
..
6-6
6-11
6-11
6-12
6-12
6-14
6-16
6-17
6-17
6-17
6-17
6-18
6-21
6-21
6-21
6-22

CG 5001 / CG 551AP , Vol . 2
( SN B050000 & Above )
TABLE OF CONTENTS ( cont )
Section 6 MAINTENANCE ( cont )
Amplitude
Test
Time Test ..
Front Panel Test . . .
ii
Reset
and
Display Test .
Check
Pushbuttons and
Controls
Display
Test
..
CPU Power Test . . .
Power On
Sequence
Test
Variable and Units
/ Div Test . .
Head Sense Test ..
Signature Analysis .
SA Test . . . .
Mux Scan Test . .
Mux Load Test ..
Kernel Test
Data
Register
Formats
Introduction
..
Register
Definitions
...
..
.
.
Page
6-22
6-22
6-22
6-22
6-23
6-23
6-23
6-23
6-23
6-23
6-29
6-29
6-31
6-33
6-35
6-38
6-38
6-38
Section 7
OPTIONS
Section 8
REPLACEABLE
ELECTRICAL
PARTS
Section 9
DIAGRAMS
AND
ILLUSTRATIONS
Adjustment
and Test
Point
Locations
Relay
State
Table
Troubleshooting Trees
Block
Diagrams
Interface
Connections
Schematic
Diagrams
Component
Reference
Charts (
Grid
Locators )
Section
10
REPLACEABLE
MECHANICAL
PARTS
ACCESSORIES
CHANGE
INFORMATION

Fig
.
No.
5-1
5-2
5-3
6-1
6-2
6-3
6-4
6-5
6-6
6-7
6-8
6-9
6-10
6-11
6-12
LIST OF ILLUSTRATIONS
Typical response curve of sampling system
with the TD Pulser . Reference curve for Low
Edge Aberration Check ( Steps 131 and 13m ) 5-13
Typical
sampling
system
response
curve
without
the
TD
Pulser
(
Low Edge
Aberration Check , Steps 13r and 13x )
Typical
waveform
for
positive
and
negative
low edge aberration checks ....
5-29
Color code for resistors and capacitors . 6-4
Semiconductor
lead
configurations
...
6-5
Orientation of multi - pin connectors . . . . 6-6
CG 5001 / CG 551AP circuit board locations .
Power is lost
to all boards
except CPU
and
Front Panel if the A3 board is removed
Circuit
board
holding
screw
.
Page
●
...
Top
view of CG
5001 / CG 551AP
. . .
Bottom view of CG 5001 / CG 551AP .
Rear view of CG 5001 / CG 551AP ...
Outside of Time Interface board . Although
only
one side is
shown , small
board removal
instructions are identical for both sides . 6-11
Output
board
. . .
6-11
Method
of
removing
magnetic
latch
relay
armature ..
Coaxial
end
lead
connector
assembly
..
5-14
6-9
6-10
6-10
6-10
6-10
6-12
6-15
Fig
.
No.
6-13
6-14
6-15
6-16
6-17
6-18
CG 5001 / CG 551AP , Vol . 2
( SN B050000 & Above )
9-1
9-2
9-3
thru
9-40
9-41
thru
9-76
Exploded view
of circuit board
pin and
ferrule . . . .
6-15
Troubleshooting chart for the Display Test 6-24
Troubleshooting
chart for
the CPU Power
Test ..
Troubleshooting
chart for
the Power
On
Sequence Test
. . .
Troubleshooting chart for the Variable and
Units / Div Test
....
Troubleshooting
chart for
the Head Sense
Test ..
NOTE
Page
Adjustment
and
Test Point
Locations
Relay
State
Table
....
6-27
The following illustrations appear in the Diagrams
and
Illustrations
foldout
section .
Troubleshooting Trees 1 through 35
Parts
Location Grids
6-25
6-26
6-28
ili

CG 5001 / CG
551AP
, Vol .
2
( SN
B050000 &
Above )
Table
No.
5-1
5-2
5-3
5-4
5-5
5-6
5-7
5-8
5-9
5-10
5-11
6-1
6-2
6-3
6-4
iv
LIST OF TABLES
Page
List of Test
Equipment
Requirements ...
5-1
Voltage Range and DC Accuracy .
5-5
Voltage Variable Range Accuracy
5-6
5-6
5-7
5-9
Voltage Mode
Current
Limits
...
Initial
Settings For
Sampling
System .
DC
Current
Accuracy and
Range
..
Low Amplitude Edge Signal Check
Settings For Risetime and Aberrations
Check ..
....
5-12
Counter
Display
For
Slewed
Edge
Accuracy
.
Calibration
Displays
For
Step 8
Calibration
Factor
Voltage
Limits
.
Relative Susceptibility To Static Discharge
Damage
.....
Signature
Version
Table
SA Test Signature Tables
Mux Scan Test Signature Tables
. .
●
5-18
5-22
5-26
5-33
6-2
6-29
6-30
6-31
Table
No.
6-5
6-6
6-7
9-1
NOTE
The following tables appear in the Diagrams and
Illustrations foldout section .
9-2
9-3
9-4
Mux Load Test Signature Tables
Kernel Test Signature Tables .
Data
Register
Format List
.
9-5
thru
9-36
Power
Connections , PS
Interface Board
( A5A2 - P1003 )
Power
Connections
, Time Mark
Board
(
A4
-
P1006
)
Power Connections , CPU Board
(
A9 -
P1001 )
GPIB / Time Reference Connections ( Time
Mark and
CPU
Boards )
Page
6-34
6-36
6-39
Component
Reference
Charts

The
general
safety
information in this part
of the
summary
is for both
operating
and
servicing personnel .
Specific
warnings and cautions will be found throughout the
manual
where
they
apply , but
may not
appear
in this
summary .
OPERATORS SAFETY SUMMARY
TERMS
In
This
Manual
CAUTION
statements
identify
conditions or
practices
that
could
result
in
damage
to
the
equipment or
other
property .
WARNING
statements
identify
conditions or
practices
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 .
In
This
Manual
A
DANGER
indicates a
personal
injury
hazard
immediately
accessible as
one
reads the
marking .
SYMBOLS
This
symbol indicates
where applicable
cautionary or
other
information is to
be
found .
As
Marked
on
Equipment
DANGER
High
voltage
.
Protective ground ( earth ) terminal .
ATTENTION
refer to manual .
CG 5001 /
CG
551AP , Vol . 2
( SN
B050000 &
Above )
Power Source
This product is intended to operate in a power module
connected
to
a power
source
that
will not apply
more than
250 volts rms between the supply conductors or between
either
supply conductor and
ground
. A
protective
ground
connection by way of the grounding conductor in the
power module power cord is essential for safe operation .
Grounding
the
Product
This product is grounded through the grounding conduc
tor of the power module power cord . To avoid electrical
shock
,
plug the
power
cord
into a
properly
wired
recep
tacle before connecting to the product input or output
terminals . A protective ground connection by way of the
grounding
conductor
in the
power
module power cord is
essential for
safe operation .
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
To avoid
fire
hazard
,
use only
the fuse of
correct type ,
voltage rating and current rating as specified in the parts
list
for your
product
.
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
To avoid
personal
injury , do
not operate
this
product
without covers or panels installed . Do not apply power to
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
Do not perform internal service or adjustment of this
product unless another person capable of rendering first
aid and
resuscitation is
present
.
CG 5001 / CG
551AP , Vol . 2
( SN
B050000 &
Above )
Use Care When Servicing With Power On
Dangerous voltages exist at several points in this product .
To avoid personal injury , do not touch exposed connec
tions and components while power is on .
Disconnect power before removing protective panels ,
soldering , or replacing components .
Power
Source
This product is intended to operate in a power module
connected to a power source that will not apply more than
250 volts rms between the supply conductors or between
either supply conductor and ground . A protective ground
connection by way of the grounding conductor in the
power
module
power cord is
essential
for safe
operation .
vii

CG 5001 / CG 551AP , Vol . 2
( SN
B050000
&
Above )
viii
MA
INST
JO
NOAM
CONTINUE
Tektronix
VARIABLE
UNITS
/ DIV
VARIABLE
READDUCTES
DUE
ERROR
VAR
RATE -
18
HATE
100
TRIGGER
OUTPUT
WINT
500
CG
551AP
PROGRAMMABLE
CALIBRATION
GENERATOR
OP
REMOTE
VARIABLE
VOLTAGE
AMPLITUDE
MODE
CURRENT
EDGE
FAST
EDGE
NUMBER
OF
DIVISIONS
(
MULTIPLIER )
7000
1000
EDGE
POLARITY
FR
FREQUENCY
2017
THE
100kHz
D
100Hz
JOK
IMR
TIMING
MODE
SLEWED
EDGE
84
100
SHIFT
CURRENT
LOOP
MASX10
C
CG 5001 / CG 551AP Programmable Calibration Generator
MARKERS
10m
/ 52
USE
FOR
15001040
OUTPUT
220V
MAX
ON
2690-1