Tektronix 214 User manual

Tektronix
,
Inc.
P.O.
Box 500
Beaverton
,
Oregon
97077
070-5054-00
Product
Group
40
Tektronix
COMMITTED
TO
EXCELLENCE
PLEASE
CHECK
FOR
CHANGE
INFORMATION
AT
THE REAR OF
THIS
MANUAL
.
214
OSCILLOSCOPE
OPERATORS
SN
B300000 &
ABOVE
INSTRUCTION
Serial Number
MANUAL
First Printing APR 1984
Revised MAR 1985

Copyright
1973 ,
1984
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 .
TRONIX
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
INTRODUCTION
SAFETY
CONSIDERATIONS .
ACCESSORIES ..
CONTROLS AND
CONNECTORS
FRONT
PANEL CONTROLS
LEFT SIDE
PANEL
CONTROLS ..
RIGHT SIDE
PANEL
CONTROLS .
OPERATING
CONSIDERATIONS
OPERATING POWER INFORMATION
INTERNAL
BATTERY
OPERATION
BATTERY
CHARGING
..
AC OPERATION ....
INTENSITY
CONTROL .
GRATICULE ..
CRT
CARE
SIGNAL
CONNECTIONS
TABLE OF
CONTENTS
GROUNDING ....
INPUT
COUPLING
INSTRUMENT
FAMILIARIZATION
VERTICAL CHANNEL SELECTION
VERTICAL DEFLECTION FACTOR ..
TRIGGER SOURCE ..
TRIGGER SLOPE ..
Page
ii
1
1
1
2
2
3
3
LO 5
5
5
5
5
5
6
6
6
6
7
8
8
8
8
8
TRIGGER LEVEL .
AUTO PRESET
STORAGE OPERATION .
SWEEP MODE ...
AUTO
NORM .
SINGLE SWEEP .
HORIZONTAL
SWEEP
RATE .
X - Y
OPERATION .....
OPERATOR'S
ADJUSTMENTS
EQUIPMENT
REQUIRED .
VERT GAIN
CHECK
...
STEP
ATTENUATOR
BALANCE
.
HORIZONTAL GAIN
CHECK .
HORIZONTAL
TIMING
CHECK
FOCUS ......
AUTO
PRESET .
BASIC APPLICATIONS
VOLTAGE MEASUREMENTS
AC
SIGNALS ..
TIME -
DURATION
MEASUREMENTS
214 OPERATORS
SN B300000 & ABOVE
FREQUENCY MEASUREMENTS ..
RISETIME MEASUREMENTS
PHASE MEASUREMENTS ...
RANDOM SIGNAL MEASUREMENTS
LOW - FREQUENCY SIGNALS
OPTIONS
OPTION 1
OPTION 2
SPECIFICATION
8
9
9
9
9
9
9
10
10
11
11
11
11
12
12
12
12
13
.
13
13
14
15
.
15
. 15
. 16
17
18
18
18
19
i

214 OPERATORS
SN B300000 & ABOVE
ii
Figure
1
2
3
4
5
567U
8
Table
1
2
LIST
OF
ILLUSTRATIONS
The 214
Oscilloscope ..
Rear
panel
showing
insulated compartment
Front panel controls ....
Right
side panel
controls
....
Definition
of
measurement lines on
the 214
graticule
Measuring
peak - to -
peak
voltage .
Measuring the
time duration
between
points on
a
waveform
.
Measuring
risetime
....
Measuring
phase
difference
Test
Equipment .
Specifications
LIST
OF
TABLES
Page
iv
1
2
3
10
13
15
15
16
Page
11
19
ï

OPERATORS
SAFETY
SUMMARY
Terms in This Manual
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 and do
not
appear in this
summary
.
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 .
Terms as
Marked on
Equipment
214
OPERATORS
SN
B300000
&
ABOVE
CAUTION indicates a personal injury hazard not
immediately accessible as one reads the markings , or a
hazard to property , including the equipment itself .
DANGER
indicates a
personal
injury
hazard
immediately
accessible as one reads
the
marking .
Symbols
in
This Manual
This symbol
indicates where
applicable
cautionary or
other
information is to be
found .
Symbols as Marked on Equipment
4
DANGER -
High
voltage
.
Protective ground ( earth ) terminal .
ATTENTION - Refer to manual .
iii

214 OPERATORS
SN B300000 & ABOVE
iv
I
CH
1
08
INPUT
COUPLING
Al
OC
B
STEP
ATTEN
BAL
INPUT COUPLING
At GNO
Di
CH 2
AY )
STEP
ATTEN
BA
Tektronix
POSITION
POS
POSITION
POS
HEADY
/
VAR
V / DIV
CAL
VAR V / DIV
VAR
CAL
STORE
VOLTS
/
DIV
SINGLE
(
EXT
SWP
T
RESET
ERASE
214
STORAGE
OSCILLOSCOPE
CH1
HORIZ )
POWER
BATTERY
VERT
MODE
CH2
TRICKER
AUTO
PRESET
LEVEL
/ SLOPE
BOYN
CH 2
9181
AU
PRESE
INT
INTENSITY
90
SWP
CAL
TRIG
SOURCE
COMP CR 2
EXY
FOCUS
HORIZ
MAG
VAR
CAL
POS
WORIZ
SEC
DIV
EXT TRIG
Tektronix 214 Dual - Trace Storage Oscilloscope .
COMMON
00:27
5054-01
C

The
Tektronix 214
Storage
Oscilloscope is a
solid -
state
portable
instrument
designed
for
general
-
purpose
applications where display storage is desired , along with
conventional ( NONSTORE ) operation . The instrument is
mechanically contructed to withstand the extremes
associated with portability . The small size of the 214 makes
it an extremely portable oscilloscope for on - location
maintenance im many fields
of
application .
SAFETY CONSIDERATIONS
INTRODUCTION
INSULATED
COMPARTMENT
WARNING
When battery operated , store the AC plug in the
insulated compartment , see Fig . 1. The RFI circuitry
connected between the instrument common and the
AC power plug can cause small amounts of current
from an
elevated reference to be
present
on the
AC
power plug
, imposing
a
possible
shock hazard
.
SHOWN CLOSED
5052-04
Fig . 1. Rear panel showing insulated compartment .
1
The instrument is shipped with the following standard
accessories :
1
1
1
1
ACCESSORIES
Visor ,
CRT
214 OPERATORS
SN B300000 & ABOVE
Case ,
Carrying
Strap , Carrying
Operators
manual
Service manual
For part numbers and further information about both
standard and optional accessories
refer to
the
" Accessories " page at the back of this manual . Your
Tektronix representative or local Tektronix Field Office can
also
provide
accessories
information
.
1

214 OPERATORS
SN
B300000 &
ABOVE
Controls
and
connectors
necessary
for
operation of the
214 are located on the front and right side panels of the
instrument . The power on off switch is located on the lower
left side of the instrument . Vertical controls are color - coded
with the tip of the corresponding probe . To make full use of
the capabilities of this instrument , the operator should be
familiar with the function and use of each control and
connector
.
8
CONTROLS AND CONNECTORS
ABD
2
2 3
5888888888
4
5
FRONT PANEL CONTROLS
1 )
READY LED -
Indicates sweep has
been reset
and a
single display will be presented upon receipt of an
adequate trigger signal .
2 )
SINGLE
SWP -
When
pushed , the
sweep
operates
in
the
Single
Sweep
mode
. After
a
sweep is
displayed ,
further sweeps cannot be presented until the RESET
button is pressed and released . Automatic Enhance
occures
in
SINGLE SWP
storage at
sweep rates of
0.1 ms / div and above .
Fig . 2. Front panel controls .
COMMON and probe
ground
straps
are
electrically
connected . Therefore , an elevated reference applied
to
any
ground is present on
the others - as
indicated by
the yellow warning bands under the probe retractable
hook tips , and the ground strap protective coverings .
6
WARNING
1
³
7
5054-02
3 ) RESET - When pressed and in the Single Sweep
mode
, a single display
will be
presented after correct
triggering . Must
be pressed again
before another
sweep
can
be
displayed
.
When
VERT
MODE
switch
is
set to BOTH , only one channel will be displayed for
each
RESET
actuation
.
4 ) STORE - When pushed , the CRT operates in the
Storage mode . With the button out , the CRT operates
in the conventional , NONSTORE , mode . Automatic
Enhance provides faster storage capabilities when in
SINGLE SWP at sweep rates of 0.1 ms / div and faster .
1

5 ERASE - Momentary contact switch that , when
pushed and released , erases a stored display from the
CRT .
6 POWER ( BATTERY ) -Red LED to indicate when the
instrument is on .
When
light
extinguishes ,
battery
charge
is
low and
about
five
minutes of
operating life
remains .
7
VOLTS
LTS
/
DIV
-
Selects
vertical
deflection
factor
( vertical VAR must be in the CAL position for
indicated
deflection
)
.
LEFT SIDE PANEL CONTROLS
8 Power ON - OFF - Turns the instrument on or off
regardless of whether the internal battery source or
an external AC source is being used . Does not
interrupt charging current to the internal batteries
when the
instrument is
connected to AC
line
voltage
.
RIGHT
SIDE PANEL
CONTROLS
AND
CONNECTORS
9
INPUT
COUPLING -
Selects
method
used
to
couple
the
channel input
signal to the
vertical
amplifier
system .
AC - Input
signal is
capacitively coupled to
the
vertical
amplifier
.
The dc
component of
input signal
is
blocked . Low -
frequency limit ( -3
db
point ) is
approximately 2
Hz .
GND -
Vertical amplifier input
circuit
is
grounded
( does not ground the input signal ) . Allows
precharging the input coupling capacitor .
9
¬
10
12
14
15
(
11 )
( 13
( 10 ) STEP
ATTEN BAL -
Screwdriver
adjustment to
balance the vertical system for minimum trace shift
when
changing deflection
factors
.
DC - All
frequency
components
of
the input
signal
are coupled to the vertical amplifier system .
( 11 ) Vertical POS - Controls the vertical position of the
appropriate
trace .
( 12 ) VAR VOLTS
/ DIV -
Provides
a
continuously variable
uncalibrated deflection factor between the calibrated
settings of the
VOLTS
/ DIV
switch .
214 OPERATORS
SN B300000 & ABOVE
( 13 ) VERT MODE
- Selects the
mode of
operation for the
vertical
amplifier
system .
CH 1 - Selects
only the Channel
1 input signal for
display
.
17
19
16 18
BOTH - Selects both Channel 1 and Channel 2
input signals for display .
CH 2 - Selects
only the Channel 2
input signal for
display
.
( 14 )
AUTO
PRESET
-
Screwdriver
adjustment to
set the
PRESET
trigger
point
for
AUTO
sweep operation .
( 15 )
LEVEL /
SLOPE
-
Selects
the
amplitude point
and
slope of
the
trigger
signal
on
which the
sweep
is
triggered . When the indicator dot is to the left of
center , the
sweep is
triggered on the positive -
going
slope of the
trigger signal
; to the right
of center ,
on
the negative - going slope . When the LEVEL / SLOPE
contol
is
set to
the
AUTO
PRESET
detent
, the
sweep
is automatically triggered at a preset level on the
positive - going
slope .
( 16 )
INTENSITY
-
Controls
brightness
of
CRT
display .
Fig
. 3.
Right side
panel
controls .
20
23 24
(
22 )
21
5054-03
3

214
OPERATORS
SN
B300000 &
ABOVE
( 17 ) TRIG SOURCE - Selects the source of the trigger
signal
.
COMP - Sweep is triggered from a DC - coupled
sample of the
vertical
signal after
the
vertical
switching .
CH
2 - Sweep is
triggered
from
an AC - coupled
sample of
the CH
2
vertical signal
before the
vertical
switching .
4
EXT Sweep is triggered from the DC - coupled
signal
applied to the EXT
TRIG
banana jack .
18
)
FOCUS
-
Screwdriver
adjustment to obtain
a well
defined
display .
( 19 ) SWP CAL - Screwdriver adjustment to provide
calibrated
sweep
timing .
( 20 ) VAR HORIZ MAG - Provides continuously variable
sweep
magnification
to a
maximum
of at
least five
times
the sweep
rate
indicated by the SEC / DIV
switch
.
( 21 )
Horizontal POS -
Controls the
horizontal position of
the trace .
( 22 ) SEC / DIV - Selects the sweep rate ( VAR HORIZ MAG
must be in CAL detent for indicated sweep rate ) . X - Y
position allows for X - Y operation with CH 2 supplying
the vertical deflection and CH 1 the horizontal
deflection .
( 23 ) EXT TRIG - Banana jack for input of an external
trigger
signal .
(
24 )
COMMO
MMON € Input banana jack to establish common
ground between the 214 and the external signal
source
or
equipment under test
. Electrically
connected
to the
probe
ground
clips
.
O