Tektronix 7834 User manual
IN
TRU
TION
MANUAL
Tektronix,
Inc
.
P .O
.
Box
500
Beaverton,
Oregon
97077
Serial
Number
070-1988-00
First
Printing
OCTOBER
1976
PAGE
LIST
OF
ILLUSTRATIONS
.......................
ii
LIST
OF
TABLES
.. ................
iii
OPERATORS
SAFETY INFORMATION
...............
iv
SERVICE
SAFETY
INFORMATION
.................
vi
SECTION
1
GENERAL
INFORMATION
INTRODUCTION
......................
1-1
INSTALLATION
......................
1-1
Initial
Inspection
....................
1-1
Operating-Power
Information
.............
1-1
Operating
Voltage
................... .
1-2
Operating
Temperature
.................
1-2
Operating
Position
.................. .
1-3
PACKAGING
FOR
SHIPMENT
..............
1-3
SPECIFICATION
..........................
1-4
SYSTEM
ELECTRICAL
SPECIFICATION
..........
1-15
STANDARD
ACCESSORIES
..................
1-18
RECOMMENDED
ACCESSORIES
...............
1-19
SECTION
2
OPERATING
INSTRUCTIONS
PRELIMINARY
OPERATION
..............
2
.1
PLUG-IN
UNITS
.
.
......
.
.
.
.
.
.
.
.
.
.
.
...
2-1
Installation
of
Plug-In
Units
..............
2-1
CONTROLS
AND
CONNECTORS
........... .
2-1
Front-Panel
Color
Coding
...............
2-1
FUNCTIONAL
CHECK
................. .
2-1
Test
Equipment
Required
...............
2-1
Preliminary
Set
Up
...................
2-6
Display
Focus
......................
2-6
Trace Alignment
.
....
.
..............
2-7
Graticule
Illumination
...
.
............ .
2-7
Control
Illumination
. .
.
.............. .
2-7
Vertical
Deflection
System
............
. .
2-7
Horizontal
Deflection
System
.
. .
.
..
..
.
....
2-7
Triggering
.
.
.
. .
. .
. .
.
..............
2-8
Readout
.
.
....
.
.
.
. .
......
.
.
.
.
.
..
.
2-8
Beamfinder
...
. .
.
.
. . . .
...
..
.....
. .
2-9
Calibrator
......
.
.
..
.
.....
. .
.....
.
2-9
Z-Axis
Input
...
.
.
.
.
.
. .
. .
.
.
.... .
.
.. .
2-9
Storage
Operation
.....
...
...
.
. .
...
.
.
.
2-9
DETAILED
OPERATING
INFORMATION
......
2-11
Graticule
.............
.
. .
..
. .
....
2-11
Light
Filter
................ .
. .
.
.
.
2-11
Control
Illumination
.
.
. .
.
..........
.
.
2-11
Intensity
Controls
....
.
. .
.
. .
.
...
....
.
2-11
Display
Focus
........
.
........
. .
. .
2-12
Astigmatism-Focus Adjustments
..........
2-12
Beamfinder
......................
2-12
Trace
Alignment
...................
2-12
Readout
Display
...................
2-12
Reduced
Scan
Mode
......
.
.
.
....
.
...
2-14
Storage
Display
................
. .
..
2-14
Care
of
Storage
Screen
... .....
2-16
Vertical
and
Horizontal
Mode
Combinations
. .
.2-16
Vertical
Trace
Separation
..............
2-19
Trigger
Source
.....................
2-19
Calibrator
Output
...................
2-19
Signal
Outputs
.................... .
2-19
Display
Photography
.................
2-20
Intensity
Modulation
.................
2-20
Remote
Input
Signals
.................
2-21
APPLICATIONS
.
..........
.2-21
Vertical
Amplifier
Plug-In
Units
...........
2-21
Time-Base
Plug-In
Units
...............
2-22
Sampling
Displays
...................
2-22
Special
Purpose
Plug-In
Units
............
2-22
X-Y
Operation
.....................
2-23
Raster
Displays
....................
2-23
THE
REMAINING
PORTION
OF
THIS
TABLE
OF
CONTENTS
LISTS
THE
SERVICING
INSTRUCTIONS
.
THESE
SERVICING
INSTRUCTIONS
ARE FOR
USE BY
QUALIFIED
SERVICE
PER-
SONNEL
ONLY
.
T
O
AVOID
ELECTRIC
SHOCK
OR
OTHER
PERSONAL
INJURY,
DO
NOT
PERFORM
ANY
SERVICING
OTHER
THAN
THAT
DESCRIBED
IN
THE
OPERATORS
IN-
STRUCTIONS
UNLESS
YOU ARE
QUALIFIED TO
DO
SO
.
WARNING
TABLE
OF
CONTENTS
PAGE
SECTION
3
THEORY
OF
OPERATION
BLOCK
DIAGRAM
...
.
.........
. .
..
.
.....
.
.
3-1
DESCRIPTION
...
.
...........
.
.
......
3-1
DETAILED
CIRCUIT
OPERATION
...............
3-4
LOGIC
FUNDAMENTALS
................
3-4
NON-DIGITAL
DEVICES
.................
3-8
CABLING
..........................
3
.8
CALIBRATOR
AND
MODE
SWITCH
..........
3-8
MAIN
INTERFACE
...................
3-10
LOGIC
...........................
3-10
A
TRIGGER
SELECTOR
.
...............
3-29
B
TRIGGER
SELECTOR
................
3-31
VERTICAL
INTERFACE
.
...............
3-33
HORIZONTAL
INTERFACE
...
.
....
.
.....
3-34
OUTPUT
SIGNALS
......
.
..........
.
.
3-34
READOUT
SYSTEM
.
. .
.
.
. .
. .
.
.
.
. .
.
. .
.
.
3-35
CONVERTER/RECTIFIERS
.
.
....
. .
. .
....
3-52
LV
(LOW-VOLTAGE)
REGULATORS
. .
....
.
.
3-56
MAIN
INTERCONNECT
. .
.
...
.
. .
.
. . .
.
.
.
3-58
VERTICAL
AMPLIFIER
.
.
...
. .
...
. .
.
. . .
3-58
HORIZONTAL
AMPLIFIER
.
......
.
......
3-60
Z
AXIS
&
CRT
.
.
....
.
. . . .
.
...
.
.
. .
. .
.
3-62
AUTO
FOCUS
AMPLIFIER
...
.
...
....
...
.
3-64
STORAGE
CONTROL
AND
TRACE
ALIGN,
STORAGE
DISPLAY
..........
.
.......
3-65
SECTION
4
MAINTENANCE
PREVENTIVE
MAINTENANCE
.................
4-1
CABINET
PANEL
REMOVAL
..............
4-1
CLEANING
.........................
4-1
VISUAL
INSPECTION
...................
4-2
SEMICONDUCTOR
CHECKS
...............
4-2
PERIODIC
ELECTRICAL
ADJUSTMENT
.......
4-2
TROUBLESHOOTING
.......................
4-3
TROUBLESHOOTING
AIDS
.............. .
43
TROUBLESHOOTING
EQUIPMENT
..........
4-5
TROUBLESHOOTING
TECHNIQUES
.........
4-5
TROUBLESHOOTING
THE
HIGH-EFFICIENCY
POWER-SUPPLY UNIT
..................
4-7
CORRECTIVE
MAINTENANCE
................
4-12
OBTAINING
REPLACEMENT
PARTS
........
4-12
SOLDERING TECHNIQUES
..............
4-12
COMPONENT
REMOVAL
AND
REPLACEMENT
.
.4-13
ADJUSTMENT
AFTER
REPAIR
............
4-28
SECTION
5
PERFORMANCE
CHECK
AND
ADJUSTMENT
PRELIMINARY
INFORMATION
............
5
.1
Adjustment
Interval
.
......
.
..........
5-1
Tektronix
Field
Service
.
.
..............
5-1
Using
This
Procedure
.......
.
..........
5-1
TEST
EQUIPMENT
REQUIRED
.
............
5-1
Special
Fixtures
......
.
.............
.
5-1
Test
Equipment
Alternatives
....... .
.
....
5-1
Signal
Connections
. . .
.
....
. .
.. .......
5-2
PERFORMANCE
CHECK/ADJUSTMENT
PROCEDURE
. . .
.....
.
.
.
.
. . .
.
.
....
. . .
5-5
Introduction
. .
.
.
.
.
. .
.
...
.
. .
.
.
...
. .
.
5-5
Index
to
Performance
Check/Adjustment
Procedure
.
. . .
. .
. .
. .
. .
....
.
.
.
.
. . . .
5-5
Setup
Procedure
. .
.
.
.
.
. .
. .
.
...... .
.
.
.
5-6
SECTION
6
INSTRUMENT
OPTIONS
SECTION
7
REPLACEABLE
ELECTRICAL
PARTS
SECTION
8
DIAGRAMS
AND
CIRCUIT
BOARD
ILLUSTRATIONS
SECTION
9
REPLACEABLE
MECHANICAL
PARTS
CHANGE
INFORMATION
7834
Instruction
7834
Instruction
FIGURE
NO
.
Frontis-
piece
7834
Features
.
.
................
.1-1
7834
dimensional
drawing
.....
. .
2-1
Front-panel
controls,
connectors
and
indicators
2-2
Rear-panel
controls
and
connectors
. .
....
2-3
Definition of
graticule
measurement
lines
...
2-4
Location
of
readout
on
the
crt
identifying
the
originating
plug-in
and
channel
.
.
2-5
Location
of
readout
on
the
crt
when
REDUCESCAN
is
selected
. .
.
.......
3-1
Basic
block
diagram
of
the
7834
Storage
Oscilloscope
. .
....
....
3-2
Detailed
block
diagram
of
the
Calibrator
and
Mode
Switch
. .
...
.
. .
3-3
Detailed
block
diagram
of
the
Logic
circuit
. .
3-4
Breakdown
of separate
stages
within
HorizontaLogic
IC
(U4428)
;
showing
inputs
and
outputs
each
stage
.
. . .
. .
.
. .
3-5
(A)
Logic
diagram
for
A
Sweep
Lockout
Stage
;
(B)
Table
of
input/output
combinations
....
3-6
(A)
Logic
diagram
for
B
Sweep
Lockout
stage
;
(B)
Table
of
input/output
combinations
....
3-7
(A)
Logic
diagram
for
Alternate
Pulse
Generatostage
;
(B)
Table
of
input/output
combinations
3-8
Input
and
output
pins for
Z-Axis
Logic
IC
(U443-9
(A)
Logic
diagram
for
Z-Axis
Logic
stage
;
(B)
Table
of
input/output
combinations
. .
3-10
Input
and
output
pins for horizontal
binary
IC
(U4358)
......................
3-11 (A)
Logic
diagram
for
Horizontal
Binary
stage
;
(B)
Table
of
input/output
combinations
....
3-12
Input
and
output
pins for
Vertical
Binary
IC
(U4368)
...
.......
3-13
(A)
Logic
diagram
for
Vertical
Binary
stage
;
(B)
Table
of
input/output
combinations
....
3-14
Input
and
output
pins for Plug-In
Binary
IC
(U4412)
....
........
3-15
(A)
Logic
diagram
for Plug-In
Binary
stage
;
(B)
Table
of
input/output
combinations
. .
3-16
(A)
Diagram
of
clock
generator
stage
;
(B)
Idwaveforms
for
clock
generator
stage
.
3-17
(A)
Logic
diagram
for
Vertical
Chopped
Blankistage
;
(B)
Table
of
input/output
combinations
3-18
Idealized
waveforms
for
Vertical
Chopped
Blanking
stage
.....
.
. .
3-19
(A)
Input
and
output
pins for
Chop
Counter
ICU4340
;
(B) Idealized
waveforms
for
Chop
Counstage.
...
............
3-20
Logic
diagram
of
Chop
Counter
stage
.....
3-21
Logic
diagram
of
Vertical
Mode
Logic
stage
. .
3-22
(A)
Logic
diagram
of
Trace
Separation
stage
;
(B)
Table
of
input/output
combinations
. .
.
3-23
Detailed
block
diagram
of
the
A
Trigger
Selectocircuit.
...
. .
3-24
Detailed
block
diagram
of
the
B
Trigger
Selectocircuit
.
....
.
3-25
Detailed
block
diagram
of
the
Vertical
Interfaccircuit
.
...
. . .
3-26
Location
of
readout
display
on
the
crt
identifyithe
originating
plug-in
and
channel
. .
. .
3-27
Character
selection
matrix
for
7834
Readout
System
. .
. .
3-28
Typical readout
display
where
only
Channel
2
of
the
Right
Vertical
and
B
Horizontal
units
is
displayed
. .
....
.
...
3-29
Detailed
block
diagram
of
the
Readout
System
3-30
Output waveforms
of
the
Timer
stage
.....
D
l
,
e
LIST
OF
ILLUSTRATIONS
PAGE
FIGURE
NO
.
PAGE
3-31
Detail
of
output
at
pins 12, 13,
14
and
16
of
.....
viii
U2126
... . .......................
3-40
....
1-14
3-32
Timer
stage
operation
when
display-skip
condition
...
.2-2
occurs
...... ... ..... . .......
.3-41
....
.2-4
3-33
Timer
relationship
of
the
time-slot
(TS)
pulses
....
2-11
produced by
Q3445
. . ..... ..
3-42
3-34
Typical
encoding
scheme
for voltage-sensing
plug-in
. .
2-13
unit
.
Coding
shown
for deflection factor of
100
microvolts
... ... .... ....
3-44
....
2-13 3-35
Idealized
current
waveforms
of
(A)
Row
analog
data
and
(B)
Column
analog
data
............
3-45
....
.3-2
3-36
Block
representation of
memory
sequence
in
U3401
..........................
3-47
....
.3-9
3-37
Typical
output
waveforms
for
Zeros
Logic
and
...
3-11
Memory
stage
operation
(at
pin 7 of
U3401)
.....
3-48
3-38
Readout
word
relating
10
possible
character
for locations to
the
decimal
point
instructions
that
can
....
3-12
be
encoded,
and
the
resultant
crt
display
.......
3-50
3-39
Flow
chart for
character
generation
by
the
....
3-13
Readout
System
..... ... . .....
3-51
3-40
Detailed
block
diagram
of
Converter/Rectifiers
....
3-14
circuit
.... .
Inverter
...... . .
.3-52
r
3-41
(A)
Representation
of
stage
.
Idealized
. .
3-15
waveforms
of
(B)
total
inverter
current,
I
t,
94)
.3-16
(C)
voltage of
CR1234
and
CR1241,
and
(D)
voltage
across
primary
.. ........
3-54
....
3-17 3-42
Detailed
block
diagram
of the
Low-Voltage
Regulator
circuit
.... .. ...
3-57
...
.3-18
3-43
Detailed
block
diagram
of the
Vertical
Amplifier
circuit
. . . . .. . .
.3-59
....
3-19 3-44
Detailed
block
diagram
of
the
Horizontal
Amplifier
.
3-61
3-45
Detailed
block
diagram
of the
CRT
Circuit
......
3-63
....
3-20 3-46
Detailed
block
diagram
of the
Auto
Focus
Amplifier
circuit
.... ... ... ....
3-65
....
3-21
3-47
Detailed
block
diagram
of
the
7834
Storage
System
.3-66
3-48
Bistable
storage
mode
timing
diagram
.. .....
3-68
....
3-22 3-49
Variable
persistence storage
mode
timing
diagram
.
.3-69
3-50
Bistable
fast
storage
mode
timing
diagram
.......
3-70
.
3-22
3-51
Variable
persistence
fast
mode
timing
diagram
....
3-71
ealized
4-1
Color
code
for
resistors
and
capacitors
.........
.44
...
3-23
4-2
Orientation
of
multi-connector
holders
. ......
.4-5
ng
4-3
Current
sensing
waveform
at
R1287
showing
:
....
3-24
A
.
Power
supplies
not
in
current
limit
operation
.
B
.
Power
supplies
in
current
limit
operation
......
.4-9
...
3-25
4-4
Typical
waveforms
on
C1216
and
C1217
with
the
line
voltage
set to
about
20
V
. . ...... ..
4-10
ter
4-5
Current
waveform
at
T1230
showing
burst
operation
... .
3-26
at line
voltage of
about
60
V
..... .......
4-11
....
3-27
4-6
Current
waveform
at
T1230
for
normal
inverter
....
3-28
operation
at line
voltage of
115
V
. . .....
4-11
4-7
Waveform
at
TP1234
on
the
Power-Supply
Inverter
....
3-28
board
with
the
line
voltage at
about
20
V
.......
4-11
r
4-8 Disassembly
and
assembly
of
Display
and
...
.3-30
Acquisition
units
... ............... .
4-14
r
4-9
Power-supply
unit
securing
screws
..... ...
4-15
...
.3-32
4-10
Location
of
line
storage
capacitor
screws
used
for
manually
discharging
C1216
and
C1217
........
4-15
. .
.3-33
4-11
Location
of securing
screws
for
the
Main
ng Interface
board
.. ...... .. ......
4-18
....
3-35 4-12
Correct
placement
of
power
transistor
and
mount-
ing
hardware
on
rear
heatsink
..............
4-22
....
3-36 4-13
Semiconductor
lead
configurations
...........
4-25
4-14
Coaxial
end-lead
connector
assembly
.... ....
4-26
4-15
Exploded
view
of
circuit-board
pin
and
ferrule
....
4-26
....
3-37 4-16
Removal
procedure
for
pushbutton
switches
. . . .
4-27
....
3-38
5-1
Typical display
when
checking
X-Y
compensation
. .
5-23
....
3-40
5-2
Readout
display
with
Q3416
removed
.........
5-29
LIST
OF
ILLUSTRATIONS
(CONT
.)
LIST
OF
TABLES
7834
Instruction
TABLE
NO
.
PAGE
TABLE
NO
.
PAGE
1-1
Power-Cord
Conductor
Identification
.........
.1-2
3-4
Standard
Readout
Format
.... ....
.
....
.
3-37
1-2
Power-Cord
Plug
Configuration
.............
.1-2
3-5
Channel Address
Code
................ ..
3-43
1-3
Shipping
Carton
Test Strength
.............
.1-3
3-6
Storage
Mode
Switch
Output
Logic
Levels
.......
3-72
1-4
Electrical
Characteristics
.
.1-4
................
4-1
Recommended
Power
Supply
Troubleshooting
1-5
Environmental
. ......
1-13
................
Sequence
.......
................. . .
.48
1-6
Physical
.....
.1-14
.
...
...
.... .
.
...... .
4-2
Typical
Power-Supply
Resistance
............
.4-8
1-7
7834
Oscilloscope
Vertical
System
Specification
...
1-16
4-3
Burst
Voltage
Test
Points
................
.4-9
1-8
7834
Oscilloscope
System
Horizontal
Specifi-
5-1
Test
Equipment
......................
.5-2
cation
.. .
.
.
....
. .
.
..
1-17
........
.
.
.
. .
.
5-2
Power Supply
Tolerance
.................
.5-8
1-9
Special
Purpose
Plug-In
Units
1-17
..............
5-3
Low-Frequency
Compensation
(Signal
Rep
Rate
2-1
Display
Combinations
2-16
..................
vs
:
Sweep
Speed)
.
. . .
.
. .
.
... ..........
5-26
3-1
Basic Logic
Reference
..................
.3-5
5-4
High-Frequency
Compensation
.....
. .
.
.
.. .
5-27
3-2
Input/Output
Combinations
for
A
Trigger
Channel
6-1
Option
Information
Locator
....
.
......
.
.
. .
.6-2
Switch
............
3-30
...............
3-3
Input/Output
Combinations
for
B
Trigger
Channel
Switch
.......
3-32
....................
The
illustrations
in
Section
8
are
located
near
their
associated
dia-
FIGURE
grams on
the
foldout
pages
.
NO
.
8-27
A24-Storage
Mode
Switch
circuit
board
assembly
.
FIGURE
8-28
A25-Partial
Storage
System
circuit
board
assembly
.
NO
.
8-29
A25-Storage
System
circuit
board
assembly
.
8-30
A14-Location
of
+108
Volt
test
point
and
adjustment
.
8-1
Circuit
board
locations
.
8-31
A16-Location
of
Low-Voltage
power
supply
test
points
8-2
Circuit
board
locations
.
and
adjustment
.
8-3
Semiconductor
lead
configuration
.
8-32
A21-Location
of
Z-Axis
and
Display
test
points
and
8-4
A2-Mode
Switch
circuit
board
assembly
.
adjustments
.
8-5
A3-Main
Interface
circuit
board
assembly
.
8-33
A6
(partial)
-Location
of
Z-Axis
Level
adjustment
.
8-6
A6-Logic
circuit
board
assembly
.
8-34
A20-Location
of
Geometry
and
Horizontal
Gain
adjust-
8-7
A7-Trigger
Amplifier
circuit
board
assembly
.
ment
.
8-8
A7-Trigger
Amplifier
circuit
board
assembly
.
8-35
A23
(partial)-Location
of
CRT
Circuit
test
points
and
8-9
A8-Vertical
Interface
circuit
board
assembly
.
adjustments
.
8-10
A11-Horizontal
Interface
circuit
board
assembly
.
8-36
A24-Location
of
trace
alignment
adjustments
.
8-11
A10-Horizontal
interconnect
circuit
board
assembly
.
8-37
Al
2-Location
of
Signals
Out
selector
switches
.
8-12
A9-X-Y
Compensation
circuit
board
assembly
.
8-38
A2
(partial)-Location
of
Calibrator
adjustments
.
8-13
A12-Signal
Out
circuit
board
assembly
.
8-39
A7-Location
of
Trigger
adjustments
.
8-14
A13-Readout
circuit
board
assembly
.
8-40
A9
(partial)-Location
of
X-Y
Compensation
adjustments
.
8-15
A3-Partial
Main
Interface
circuit
board
assembly
.
8-41
A8
(partial)-Location
of
Vertical
Interface
gain
adjust-
8-16
A14-Cap-Rectifier
circuit
board
assembly
.
ment
.
8-17
A15-Power
Supply
Inverter
circuit
board
assembly
.
8-42
A20-Location
of
the
Horizontal
Amplifier
test
points
8-18
A16-LV
Regulator
circuit
board
assembly
.
and
adjustment
.
8-19
A17-Fan
Board
circuit
board
assembly
.
8-43
A19-Location
of
Vertical
Amplifier
adjustments
.
8-20
A3-Main
Interface
circuit
board
assembly
.
8-44
A13
(partial)
-Location
of
Readout
adjustments
.
8-21
A19-Vertical
Amplifier
circuit
board
assembly
.
8-45
A25-Location
of
Storage
test
points
and
adjustments
.
8-22
A20-Horizontal
circuit
board
assembly
.
8-46
A20
(partial)
-Location
of horizontal
Readout
Position
8-23
A21
-Z-Axis
circuit
board
assembly
.
adjustment
.
8-24
A23-Focus
circuit
board
assembly
.
8-47
A19
(partial)
-Location
of
vertical
Readout
Centering
8-25
A22-High
Voltage
circuit
board
assembly
.
adjustment
.
8-26
A21-Z-Axis
circuit
board
assembly
.
8-48
7834
Troubleshooting
chart
.
7834
Instruction
OPERATORS
SAFETY
INFORMATION
4
I
The
following
general
safety
information
applies
to
all
operators
and
service
personnel
.
Specific
warnings
will
be
found
throughout
the
manual
where
they
apply
and
should
be
followed
in
each
instance
.
WARN
I
NG
statements
identify
conditions
or
practices
which
could
result
in
personal
injury
or
loss
of
life
.
CAUTION
statements
identify
conditions
or
practices
which
could
result
in
damage
to the
equipment
or
other
property
.
The word
DANG
E R
on
the
equipment
identifies
areas
of
immediate
hazard
which
could
result
in
personal
injury
or
loss
of
'
life
.
The
following
safety
symbols
may
appear
on
the
equipment
.
CAUTION-Refer
to
manual
DANGER-High
voltage
1
01
Other
warning
symbols
where
they
apply
.
Protective
ground
(earth)
terminal
WARNING
AC
Power
Source
and Connection
This
instrument
operates
from
a
single-phase
power
source
.
Ithas
a three-wire
power
cord
and
a two
pole,
three-terminal
grounding-type
connector
.
The
voltage to
ground
(earth)
from
either
pole of
the
power
source
must
not exceed
the
maximum
'
rated operating
voltage,
250
volts
.
Before
making
connection
to the
power
source,
determine
that the
instrument
is
adjusted
to
match
the voltage
of
the
power
source,
andhasasuitable
two-pole,
three-
terminal
grounding-type
connector
.
Refer
any
changes
to
qualified
service
personnel
.
Grounding
the
Instrument
This
instrument
is
safety
class
/
equipment
(1EC
designation)
.
All
accessible
conductive
parts are
directly
connected
through
the
grounding conductor
of
the
power
cord
to
the
grounding
contact
of
the
power
connector
.
The
power-inputplug
must
be
inserted
only
into
a
mating
receptacle with a
grounding
contact
.
Do
not
defeat
the
grounding
connection
.
Any
interruption
of
the
grounding
connection
can
create
an
electric-shock
hazard
.
Refer
to
qualified
service
personnel
for
verification
of adequate
protective
grounding
system
to
which
this
instrument
is
to
be
connected
.
For
electric-shock
protection,
the
grounding
connection
must be
made
before
making
connection
to
the
instrument's
input
or
output
terminals
.
"
Do
Not
Remove
Instrument
Covers
'
To
avoid
electric-shock
hazard,
operating
personnel
must
notremove
the
protective
instrument
covers
.
Component
replace-
ment
and
internal
adjustments
must
be
made
by
qualified service
personnel
only
.
'
Do
Not Remove
CRT
Implosion
Shield
Do
notremove
the
clear
plastic
implosion
shield
covering
the crt
face
plate
.
This
crt
implosion
shieldprovides
protection
to
the
operator
from
crt
implosion
.
'
Do Not
Operate
in
Explosive
Atmosphere
To
avoid
explosion,
do
not
operate
this
instrument
in
an
explosive
atmosphere
unless
it
has been
certified
for
such
operation
.
Use
the
Proper
Fuse
'
Refer
fuse
replacement
to
qualified
personnel
only
.
To
avoid
fire
hazard,
use
only
the
fuse
specified
in
the
parts
list
for
your
instrument
and
which
is
identical
in
the following
respects
:
A
.
Type
:
Slowblow,
fast
blow,
etc
.
B
.
Voltage
rating
:
250
V,
etc
.
19
C
.
Curren
t
ra
ting
.
Operating-Power
Considerations
Exercise
Care with
Intensity
Level
I
Prevent
Instrument
Damage
7834
Instruction
To
prevent
damage
to
the
instrument
always
check
the
LINE
VOLTAGE
SELECTOR
switch,
located
on
the
rear
of
the
'
instrument,
before
connecting
the
instrument
to
the
supply
circuit
.
'
Crt
phosphor
damage
can
occur
under
adverse conditions
.
Avoid
any
condition
where
an
extremely
bright,
sharply-focused
dot
exists
on
the
crt
.
Also,
remember
that
the
light
filter
reduces
the
apparent
light
output
from
the crt
.
Plug-in
units
should
not
be
installed
or
removed
without
first
turning
the
instrument
power
off, to
prevent
instrument
damage
.
REV
.
A,
NOV
.
1977
7834
Instruction
SERVICE
SAFETY
INFORMATION
The
following
are
safety
precautions
which
appear
in
the
servicing
information
sections
of
this
manual
.
This
Service
Safety
Information
is
in
addition to
the
Operators
Safety
Information
given
previously
.
Do
Not
Service
Alone
Do
not
attempt
internal
service
or adjustment
unless
another
person,
capable
of
rendering
first
aid
and
resuscitation,
is
present
.
Exercise
Care
When
Operating Instrument
with Covers
Removed
Dangerous
potentials
exist
at
several
points
throughout
this
instrument
.
When
the
instrument
is
operated
with the
covers
removed,
do
not
touch
exposed
connections
or
components
.
Some
transistors
have
voltages
present
on
their cases
.
Disconnect
power
before
cleaning
the
instrument
or
replacing
parts
.
Disconnect
Instrument
Power
To
avoid
electric-shock
hazard,
always
disconnect
the
7834
from
the
power
source before
removing
or
replacing
components
.
To
avoid
electric-shock
hazard,
disconnect
the
instrument
from
the
power
source
before
soldering
.
Silicone
Grease
Handling
Handle
silicone
grease
with
care
.
Avoid
getting the
silicone
grease
in
your
eyes
.
Wash
hands
thoroughly
after
use
.
Exercise
Care
When
Servicing
Power
Unit
The
power
supply
unit
has
been
tested at the
factory
to
ensure
safe
operation
.
Improper
repair
of
this
unit
can
result
in
hazardous
potentials
on
the
instrument
chassis
.
Do
not
remove
the
plate
insulator,
block
insulator,
or
transistor
shield
from
the
heat-sink
.
(See
the
exploded
view
drawing
of
the
power
supply
unit
for the location
of
these
components
.)
Disconnect
the
instrument
from
the
power
source
and
allow
the
line
storage capacitors
to
discharge
before
removing
the
power-unit
cover
.
The
line
storage capacitors
remain
charged
with high-voltage
do
for
several
minutes
after the
line
power
is
disconnected
unless
they
are
manually
discharged
.
A
warning-indicator
neon
bulb,
located
on
the
Power-Supply
Inverter
board,
flashes
when
this
stored
voltage
exceeds
about
80
volts
.
Do
not
remove
the
power-unit,cover
while
this
light
is
flashing
.
Use
extreme
caution
when
troubleshooting
in
the
power-supply
unit,
to
avoid
electric
shock
.
Stored do
potentials
on
the
Power-Supply
Inverter
circuit
board
remain
long
after
the
instrument
is
disconnected
from
the
power
source
.
Verify that the
power-cord
plug
is
disconnected
and
that
the
line
storage capacitors
(C1216
and
C1217)
are
completely
discharged
before
attempting
any
repairs
or
ohmic
measurements
.
(A
warning-indicator
neon
bulb,
located
on
the
Power-Supply
Inverter
board,
flashes
when
this
stored
voltage
exceeds
about
80
volts
.
However,
simply
because
the
neon
bulb
is
not
flashing
does
not
mean
that the capacitors are
fully
discharged
.)
CRT
Handling
Use
care
when
handling
a crt
.
Breakage
of
the crt
causes
a high-velocity
scattering
of
glass
fragments
(implosion)
.
Protective
clothing
and
safety
glasses
should
be
worn
.
Avoid
striking
the crt
on any
object
which
might
cause
it
to
crack
or
imp/ode
.
When
storing
a crt
place
it in
a
protective
carton
or set
it
face
down
in
a
protected
location
on a smooth
surface with a soft
mat
under
the
faceplate
.
Avoid
Excessive
Moisture
Circuit
boards
and
components
must
be
dry before
applying
power
to
prevent
damage
from
electrical
arcing
.
Exercise
Care
When
Checking
Diodes
7834
Instruction
When
checking
diodes,
do
not
use
an
ohm-meter
scale
that
has
a high
internal current,
since
high
currents
may
damage
the
diodes
under
test
.
Exercise
Care
When
Soldering
on
Multi-Layer
Boards
Several
of
the
circuit
boards
in
the
7834
are multi-layer
type
boards
with
a
conductive
path
laminated
between
the top
and
bottom board
layers
.
All
soldering
on
these
boards
should be
done
with
extreme
care
to
prevent
breaking
the
connections
to
this
center
conductor
.
Only
experienced
maintenance
personnel
should
attempt
repair
of
these
boards
:
A3-Main
Interface,
A6-Logic,
A7-Trigger
Amplifier,
A8-Vertical
Interface,
A
14-Cap-Rectifier,
and
A25-Storage
circuit
board
.
Exercise
Care
When
Handling
CRT
Anode
Lead
Do
not
touch
any
components
with
the crt
anode
lead
until
it is
fully
discharged
.
Use
Proper
Cleaning
Agents
Avoid
the
use
of
chemical
cleaning
agents
which might
damage
the
plastics
used
in
this
instrument
.
Use
a
non-residue
type
of
cleaner,
preferably
isopropyl
alcohol,
total/y
denatured
ethyl
alcohol,
or
TP35
.
Before
using
any
other
type
of
cleaner,
consult
your
Tektronix
Service
Center
or
representative
.
Do
Not
Use
Pin
Sockets
for
Connection
Points
The
spring
tension
of
the
pin
sockets ensures
a
good
connection
between
the
circuit
board
and
the
pin
.
This
spring
tension
can
be
destroyed
by
using
the
pin
sockets
as a
connecting point
for
spring-loaded
probe
tips,
alligator
clips,
etc
.
7834
Instruction
7834
FEATURES
1987-8
The
Tektronix
7834
Storage
Oscilloscope
is
a
solid-state
instrument
designed
for
fast-writing
speed
storage
applications
.
Three
display
modes
are
available
at
the
front
panel-Nonstore,
Store,
and
Save
;
as
well
as
fourlstorage
modes-Bistable,
Variable
Persistence,
Fast
Bistable,
and
Fast Variable
Persistence
.
In
addition,
the
REDUCED
SCAN
feature
increases
the
stored-writing
speed
capability
.
Power
supply
voltages
are
closely
regulated
to
maintain
instrument
performance
when
variations
in
line
voltage,
line
frequency,
or
plug-in
load
occur
.
The
light-weight,
high-efficiency,
power
supply
operates
from
115-or
230-volt
nominal
supply
source
(50
to
400
hertz)
.
The
instrument's
high
vertical
bandwidth
(400
megahertz),
fast-storage-writing
speed,
and
four
plug-in
compartments
which
accept
7-series
plug-in
units,
form
a
highly
flexible
measurement
system
.
INTRODUCTION
G
AL
INFOR
The
Operators
Manual
is
divided
into
three
main
sections
:
Section
1-General
Information
;
contains
instrument
description,
electrical
specifications,
environmental
char-
acteristics,
standard
and
recommended
accessories,
installation,
and
packaging
for
shipment
instructions
.
Section
2-Operating
Instructions
;
contains
information
relative
to
operating
and
checking
the
instrument
operation
.
Section
3--Instrument
Options
;
contains
a
description of
available
options
and
gives
the location of
the
incorporated
information
for
those
options
.
The
Instruction
Manual
contains
both
operating
and
servicing
information
for the
7834
Storage
Oscilloscope
.
Sections
1
and
2of the
Instruction
Manual
contain
the
same
information
as
Section
1
and
2
of the
Operators
Manual
;
the
remaining seven
sections
of the
Instruction
Manual
are
as
follows
:
ATr
O
Section
T-Replaceable
Electrical
Parts
;
contains
infor-
mation
necessary to
order
replaceable
parts
and
assemblies
related
to
the
electrical
functions
of the
instrument
.
Section
8--Diagrams
and
Circuit
Board
Illustrations
;
includes detailed
circuit
schematics,
locations
of
assembled
boards within
the
instrument,
voltage
and
waveform
information,
circuit
board
component
locators,
and
locations
of
adjustments
to
aid
in
performing
the
Adjustment
procedure
.
Section
9-Replaceable
Mechanical
Parts
;
includes
information
necessary to
order
replaceable
mechanical
parts
and
shows
exploded
drawings
which
identify
assemblies
.
Initial
Inspection
INSTALLATION
Section
1-7834
This
instrument
was
inspected
both mechanically
and
electrically
before
shipment
.
It
should
be
free
of
mars
or
scratches
and
should
meet
or
exceed
all
electrical
specifications
.
To
confirm
this,
inspect
the
instrument
for
physical
damage
incurred
in
transit
and
test
the
electrical
performance
by
following
the
Operating
Instructions
in
Section
2
and
Performance
Check
Procedure
in
Section
5 of
the
Instruction
Manual
.
If
there
is
damage
or
deficiency,
contact
your
local
Tektronix
Field
Office or
representative
.
Operating-Power
Information
This
instrument
can
be
operated
from
either
a
115-volt or
230-volt
nominal
supply
source,
48
to
440
hertz
.
CAUTION
To
prevent
damage
to
the
instrument,
always
check
the
LINE
VOL
TAGS SELECTOR
switch
located
on
the
rear
of
the
instrument
before
connecting
the
instrument
to the
supply
circuit
.
General
Information-7834
WARNING
AC
POWER
SOURCE
AND
CONNECTION
.
This
instrument
operates
from
a
single-phase
power
source
.
It
has
a three-wire
power
cord
and
two-pole, three-terminal
grounding-type
plug
.
The
voltage
to
ground
(earth)
from
either
pole of
the
power
source
must
not exceed
the
maximum
rated operating
voltage,
250
volts
.
Before
making
connection
to
the
power
source,
determine
that the
instrument
is
adjusted
to
match
the voltage
of
the
powersource,
and
has
a
suitable
two-pole, three-terminal
grounding-
type plug
.
Refer
any
changes
to qualified
service
personnel
.
GROUNDING
.
This
instrument
is
safety
class
I
equipment
(1EC
designation)
.
All
accessible
conductive
parts
are
directly
connected
through
the
grounding
conductor
of
the
power
cord
to the
grounding
contact
of
the
power
plug
.
The
power
input
plug
must
only be
inserted
in
a
mating
receptacle
with
a
grounding
contact
.
Do
not
defeat
the
grounding
connection
.
Any
interruption
of
the
grounding
connection
can
create
an
electric
shock
hazard
.
For
electric
shock
protection,
the
grounding
connection
must
be
made
before
making
connection
to
the
instrument's
input
or
output
terminals
.
TABLE
1-1
Power-Cord
Conductor
Identification
The
power-cord
plug required
depends
upon
the ac input
voltage
and
the
country
in
which
the
instrument
is
to be
used
.
Should
you
require
a
power-cord
plug
other
than
that
supplied with
your
instrument,
refer
to the
standards
listed
in
Table
1-2
.
Nominal
Supply
Voltage
115
V
ac
230
V
ac
Operating Voltage
TABLE
1-2
Power-Cord
Plug
Configuration
Reference Standards
'ANSI
C73
.11
2
NEMA
5-15-P
3
1EC
83
'ANSI
C73
.20
3
1EC
83
4
BS
1363
S
CEE
7,
sheets
IV, VI,
and
VII
2
AS
C112
NEMA
6-15-P
'
ANSI-American
National
Standards
Institute
a
NEMA-National
Electrical
Manufacturer's
Association
3
1EC--International Electrotechnical
Commission
°
BS--British
Standards
Institution
S
CEE-International
Commission
on
Rules
for the
Approval
of
Electrical
Equipment
s
AS-Standards
Association
of
Australia
The LINE
VOLTAGE
SELECTOR
switch
(located
on
the
rear
panel)
allows
selection
of 115-volt or
230-volt
nominal
line
voltage
operation
.
To
convert
from
115-volt to
230-
volt
operation,
change
the
power
cord
and
plug to
match
the
power-source
receptacle,
then
use a
small
screwdriver
to
move
the
LINE
VOLTAGE
SELECTOR
switch
to
the
desired
range
.
Condu
c
tor
Color
Alternate
Color
Ungrounded
(Line)
Brown
Black
G
Grounded
(Ne
utral) Bl
ue
-
White
Grou
nd
ed
(E
arthi
ng)
Green-Yellow
-
Green-Yell
-
ow
-
Operating
Position
2
.
Enclose
the
instrument
with
polyethylene
sheeting or
equivalent to
protect
the
finish
of the
instrument
.
A
bail-type
stand,
mounted on
the
bottom
of the
instrument,
permits
the
instrument
to be
tilted
up
about
10
°
for
more
convenient
crt
viewing
.
PACKAGING
FOR
SHIPMENT
If
this
instrument
is
to be
shipped
for
long distances
by
commercial
transportation,
it is
recommended
that
the
instrument
be
packaged
in
the
original
manner
.
The
carton
and
packaging
material
in
which
your
instrument
was
shipped
should
be saved
and
used
for
this
purpose
.
Also,
if
this
instrument
is
to be
shipped
to
a
Tektronix
Service
Center
for
service
or
repair,
attach a tag to the
instrument
showing
the
following
:
Owner
of the
instrument
(with
address),
the
name
of
a
person
at
your
firm
who
can
be
contacted,
complete
instrument
type
and
serial
number,
and
a
description of the
service
required
.
If
the
original
packaging
is
unfit
for
use or not
available,
package
the
instrument
as
follows
:
1
.
Obtain
a
carton of
corrugated
cardboard
having
inside
dimensions
at
least
six
inches
greater
than
the
instrument
dimensions
;
refer
to
Table
1-3
for
carton
test
strength
requirements
.
3
.
Cushion
the
instrument
on
all
sides
by
tightly
packing
dunnage
or
urethane
foam
between
the
carton
and
the
instrument,
allowing
three
inches
on
each
side
.
4
.
Seal
the
carton
with
shipping
tape
or
with
an
industrial
stapler
.
5
.
Mark
the
address
of
the
Tektronix
Service
Center
and
your
return
address
on
the
carton
in
one
or
more
prominent
locations
.
Shipping
Carton
Test
Strength
TABLE
1-3
General
Information-7834
Gross
Weight
(Ib)
I
Carton
Test Strength
(Ib)
0-10
200
10-30
275
30- 120
375
120-
140 500
140-
160
600
General
Information--7834
The
electrical
characteristics
listed
in
Table
1-4
apply
when
the
following
conditions
are
met
:
(1)
Adjustment
of
the
instru-
ment must
have
taken
place
at
an
ambient
temperature
between
+20
°
and
+30
°
C
;
(2)
The
instrument
must
be
allowed
a
30-minute
warm-up
period
;
(3)
All
specifications
are
valid
at
an
ambient
temperature
of
0
°
to
+50
°
C,
unless
otherwise
stated
;
(4)
All
specifications
are
valid
in
Full
Scan
(0
.9
cm/div)
and
Reduced
Scan
(0
.45
cm/div)
modes,
unless
otherwise
stated
;
(5)
The
instrument
must
be
in
an
environment
that
meets
the
limits
described
in
Table
1-5
.
Any
applicable
conditions
not
listed
above
are
expressly
stated
as
part of that
characteristic
.
Deflection
Factor
C
harac
t
eristic
Difference
Between
Vertical
Compartments
Low-Frequency
Linearity
Bandwidth
Isolation
Between
Vertical
Compartments
All
Vertical
Modes
Delay
Line
Vertical
Display
Modes
LEFT
ALT
ADD
CHOP
SPECIFICATION
TABLE
1-4
Electrical
Characteristics
Performance
Requirement
1
%
or
less
.
Left
vertical-unit
displayed
.
NOTE
VERTI
CAL SYSTEM
._
...
._-____
t_---
Compatible
with
all
7000-series
plug-in
units
.
0
.1
div
or
less
compression
or
expansion
of a
center-
screen 2-div
display
positioned
anywhere
vertically
within
graticule
area
.
Varies
with
plug-in
unit
selected
.
See
7834
Oscilloscope
Vertical
Systems
Specification,
Table
1-7
.
At
least
100
:1
from
do
to
150
MHz
and
at
least
30
:1
from
150
MHz
to
400
MHz
.
Permits viewing
the
leading
edge
of
triggering
signal
.
7850
Series
time-base
units are
not
compatible
with the
7834
delay
line
unless
otherwise
stated
in
the
Tektronix
Products
catalog
.
Selected
by
front-panel
VERTICAL
MODE
switch
.
Display
alternates
between
left
and
right vertical
units
.
Display
shows
algebraic
sum
of
left
and
right
vertical
units
.
Display
chops
between
left
and
right
vertical
units
.
Characteristic
TABLE
1-4
(CONT
.)
Electrical
Characteristics
RIGHT
Chopped
Mode
Repetition
Rate
VERT
TRACE
SEPARATION
(B)
Deflection
Factor
Difference
Between
Horizontal
Compartments
Fastest
Calibrated
Sweep
Rate
Horizontal
Display
Mode
A
ALT
CHOP
Chopped
Mode
Repetition
Rate
Phase
Shift
Between
Vertical
and
Horizontal Deflection
Systems
With Option
2
(B
HORIZ
Compartment
Only)
Bandwidth
(7D34
Horizontal
Only
with
10
Div
Reference)
With Option
2(BHOR!ZCompartment
Only)
AandBTRIGGER
SOURCE
VERT
MODE
LEFT
VERT
RIGHTVERT
HORIZONTAL
SYSTEM
TRIGGER SYSTEM
General
Information-7834
Performance
Requirement
Right
vertical-unit
displayed
.
1
MHz
within
20%
.
Positions
"B"
trace
at
least
4div
above
and
below
"Y\^
trace,
when
7834
operates
in
dual-sweep
mode
.
Compatible
with
all
7000-series
plug-in
units
.
1ns/div
.
Selected
by
fmnopanel
HORIZONTAL
MODE
switch,
Aho,izonm!
unit
displayed
.
Display
alternates
between
A
and
8horizonta!
units
.
Display
chops
between
A
and
B horizontal
units
.
B
horizontal
unit
displayed
.
200 kHz
within
20%
.
%" n,less
from
dctoatleast
35
kHz
.
2
0
o,less
from
doto
1
MHz
.
From
dc
to
at
least
1
MHz
.
From
dc
to at
least
1
MHz
.
Selected
by
front-panel
switches
.
From
vertical
unit
se1ected
by
VERTICAL
MODE
switch
;
except
that
in
CHOP
mode
signals
are
added
algebraically
.
From
left
vertical
unit
only
.
From
right
vertical
uni
t
only
.
General
Information-7834
VVavod`apo
Po!a,ity
Source
Impedance
Output
Voqage
Into
100
k2
or
greater
!nto
50T2
Output
Current
Amplitude
Accuracy
(P-P
Voltage)
Repetition
Rate
Duty
Facto,
Rise
Time
and
Fall
Time
+SAWTOOTH0UT
Source
Polarity
Output
Vokage
Ree
of
Rise
!ntn5012
Chaoutehmin
I
Performance
Requirement
Into
1
M2
Output
Resistance
TABLE
1-4
(CONT
.)
Electrical
Characteristics
CALIBRATOR
SIGNAL
OUTPUTS
Squarewmve
.
450D
.
Positive
going
with
Qsdine
near
Wound
.
(Selected
by
%nopenel
CALIBRATOR
switch
.)
40mV
'
U
.4V
'
4V
.
4mV
'
40mV
'
0,4
V
.
40
mA
available
through
CALIBRATOR
output
with
optional
BNC-to-Current
Loop
adapter
.
CALIBRATOR
switch
must
be
set
to4
Vfo,calibrated
output
Within
1%
.
1
kHz
within
015%
.
49
.8
to
50
.2%
.
25Unoo,less
into
10UpFo,less
.
AH0R!Ztime-base
unit
o,BH0R!Ztime-base
unit
.
Positive
going
with
baseline
ot0Vwithin
1
V
into
1
MD
.
5OmV/unit
of
time
selected
by
time-base
unit
timo/div
switch,
within
15%
;
1UUnok1ivmax
.
1
V/unitoftime
selected
by
time-base
unit
timo/div
switch,
within
10%
;
1
us/]iv
max
.
Approximately
950/%
.
+GATE
OUT
Source
DOW
Gee
Po!a,ity
A
or B
Gate
A
DOW
Gate
Output
Voltage
Into
50
12
Rise
Time
Into
50
Q
Output
Resistance
VERTS!GOUT
Source
Output
Voltage
Into
50
Q
Into
1
M2
Bandwidth
Into
5U
D
DC
Centering
Aberrations
Output
Resistance
Characteristic
TABLE
1-4
(CONT
.)
Electrical
Characteristics
Performance
Requirement
AHOR!Ztime-base
unit
o,BH0R!Ztime-base
unit
.
Derived
from
the
A
HOR!Ztime-base
unit
main
gate
.
Derived
from
the B
H0R!Ztime-base
unit
main
gate
.
gate
.
Derived
from
the
A
H0R!Ztime-base
unit
delayed
gate
.
Positive
going
with
baseline
at0Vwithin
1
.UV
(into
1
MD)
.
Positive
level
when
Atime-base
delayed
sweep
o,
O
sweep
is
enabled
.
O
V
within
1
.0
V
(into
1
K0D)
when
sweeps
are
disabled
.
Output
is
always
positive
when
no
plug-in
is
used
or
plug-in
does
not
provide
delayed
note
.
[i5Vwithin
10%
.
l0Vwithin
10&
(up to
1
uo/div}
.
Approximately
950
2
.
Selected
by
A
TRIGGER
SOURCE
switch
.
~
Same
as
ATR!GGERS0URCE
.
25
mV/div
of
vertical
deflection
within
25%
.
0
.5
V/div
of
vertical
deflection
within
25%
.
Varies
with
vertical
plug-in
selected
;
see
7834-Series
Oscilloscope
Vertical
Systems
Specification,
Table
1-7
.
UVwithin
1
V
into
1
M2
.
15%
orless
p'vwithin
50
ns of
step
.
Approximately
950
Q
.
General
Information-7834
General
Information-7834
External
Z-Axis
Input
Polarity
and
Sensitivity
Low-Frequency
Response
Input
Resistance
Input
Capacitance
Open-Circuit
Voltage
Maximum
Input
Voltage
Maximum
Repetition
Rate
Readout
Modes
FREE
RUN
Char
acteristic
Storage
Mode
NON-STORE
BISTABLE
or
VAR
PERSIST
FAST BISTABLE
or
FAST
VAR
PERSIST
SAVE
GATED
Storage
Mode
NON-STORE
BISTABLE
Z-AXIS
S
YSTEM
TABLE
1-4
(CONT
.)
Electrical
Characteristics
To
dc
.
1
MHz
.
READOUT
DISPLAY
Less
than
50 pF
.
Performance
Re
quirement
Positive
2
V
provides
complete
blanking
from
maximum-
intensity
condition
;
negative
2
V
provides
complete
unblanking
from
minimum-intensity
condition
.
Approximately
470
52
,
.
Approximately
0
V
.
Within
15
V
(dc plus
peak
ac)
.
Selected
by
front-panel
switch
.
Continuously
displayed
.
Continuously
displayed,
except
turns
off
during
erase
cycle
.
Continuously
displayed,
except
turns
off
at
beginning
of
erase cycle
or
at initiation
of
single
sweep
reset
until
end
of
transfer
cycle
.
Also, turns
off
when
displayed
time
base
operates
in
other
than
single-sweep
mode
and
MULTI
TRACE
DLY
control
is
not
in
detent
.
Displayed
for
approximately
1
s
after
save
mode
is
entered,
then
turns
off
.
One
frame
of
readout
is
provided
at
end
of
displayed
sweep
.
Continuously
displayed
except
turns
off
from
beginning
of
erase
cycle
until
end
of
first
displayed
sweep
.
Phosphor
VAR
PERSIST
Character
Height
Full
Scan
FAST
BISTABLE
Reduced
Scan
Cathode
Ray
Tube
Graticule
Type
Area
Full
Scan
Reduced
Scan
Full
Scan
Characteristic
TABLE
1-4
(CONT
.)
Electric
al
Chara
c
teristics
FAST
VAR
PERSIST
SAVE
BISTABLE
or
FAST
BISTABLE
VAR
PERSIST
FAST
VAR
PERSIST
Stored
Vertical
and
Horizontal
Resolution
in
VAR
PERSIST
and
VAR
PERSIST
FAST
DISPLAY
One
frame
of
readout
is
provided
at
the
end
of
displayed
sweep
.
Erase cycle
inhibits
readout
display
.
Continuously
displayed
except
turns off
at
beginning
of
erase
cycle,
or at
initiation
of single-sweep
reset until
end
of
transfer
cycle
.
Also, turns
off
when
displayed
time
base
operates
in
other
than
single
sweep
mode
and
when
MULTI
TRACE
DLY
control
is
not
in
detent
.
One
frame
of
readout
is
provided
in
end
of
transfer
cycle
;
turns
off
when
displayed
time
base
operates
in
other
than
single
sweep
mode
and
when
MULTI
TRACE
DLY
control
is
not
in
detent
.
Displayed
for
approximately
1 s
after
save
mode
is
entered, then turns off
.
Allows
one
frame
of
readout
to be displayed
at
end
of
displayed
sweep
.
Allows one
frame
of
readout
to
be
displayed
at
end
of
transfer
cycle
.
0
.35 div
to
0
.5
div
.
0
.2
div
t
o 0
.3
div
.
Internal
;
illuminated
with
variable
edge
lighting
.
8 x
10
div
;
0
.9
cm/div
.
8
x 10
div
;
0.45
cm/div
centered
on
faceplate
.
P31
.
10
lines/div
.
Performance
Requirement
General
Information-7834
General
Information-7834
High
Vokage
Overall
Accelerating
Voltage
Geometry
8EAMF!NDER
Stored
Writing
Speed
Full
Scan
(Center
0x
Odiv
at
U.9om/div)
FAST
VAR
PERSIST
FAST
ElISTABLE
Characteristic
VAR
PERSIST
B!STA8LE
Reduced
Scan
(Center
8 x
1Odi,at0
.45om/div}
FAST
VAR
PERSIST
FAST BISTABLE
VAR
PERSIST
B!STABLE
Stored
View
Time
AUTO
ERASE
VIEW
DME
Minimum
Maximum
CONTROL
ILLUMINATION
8!STABLEundFAST
B!STABLE
VARPERSIST
andFAST
VARPERS!ST
TABLE
1-4
(CONT
.)
Electrical
Characteristics
STORAGE
REMOTE
CONNECTORS
&
SWITCHES
Performance
Requirement
Approximately
10
kV
(approximately
12
kV
in
reduced
Within
0]
di"
nfv,rboa!
and
horizontal
graicule
lines
.
Anuadno
BEAMFINDER
limits
display
to
within
gouiou!oama
.
30Udiv/uo(27OomQ)
.
5Odiv&u(45om&s)
.
%
div/uo
<18om0o>
.
0
.03div/uo
(U
.D27
om/ps)
.
5
'
500divoo(2
'
500omae)
.
77Odiv/us(3GUom/po)
.
12div/pm<5
.4om/pm>
.
02div/us
((lU0om/po>
.
Less
than
1
s
.
Greater
V`an
4o
.
At
least
30 minutes
(typically
hours)
.
30
s
or
more
at
maximum
persistence
.
High,
medium
and
off
.
(Three
position
switch
located
on
rear
of
instrument)
.
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