Tektronix 2465A User manual

TEK
INTENSITY
BEAM
FINO
•
SERVICE
MANUAL
2467 350MHz GPIB STATUS
OSCILLOSCOPE
FOCUS READOUT INTENSITY
070-6019-01
Product 38
2465A/2467
POSITION PO!!_TION
RECALL CHOP/ 20MHz
HELP ALT BWLIMIT
:
VOLTS/DIV
VOLTS/DIV
CH
CH 2
RMS RMS
TRACE
SERIAL
CH 3
CH
4
PROBE@lms
f
TO

SERVICE
MANUAL
First Printing APR 1987
Revised MAY 1987
070-6019-01
Product Group 38
2465A/2467
OSCILLOSCOPES
SERVICE
I WARNING I
THE FOLLOWING SERVICING INSTRUCTIONS ARE
FOR USE BY QUALIFIED PERSONNEL ONLY. TO
AVOID PERSONAL INJURY, DO NOT PERFORM ANY
SERVICING OTHER THAN THAT CONTAINED
IN
OPERATING INSTRUCTIONS UNLESS YOU ARE
QUALIFIED TO DO SO. REFER TO OPERATORS
SAFETY SUMMARY
AND SERVICE SAFETY SUM-
MARY
PRIOR TO PERFORMING ANY SERVICE.
Please Check for
CHANGE INFORMATION
at the Rear of This Manual
TO EXCELLENCE

Copyright© 1986, 1987 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.
Printed
in U.S.A. Specification and price change privileges
are reserved.
INSTRUMENT SERIAL NUMBERS
Each instrument has a serial number on a panelinsert, 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
100000
200000
300000
700000
Tektronix, Inc., Beaverton, Oregon, USA
Tektronix Guernsey, Ltd., Channel Islands
Tektronix United Kingdom, Ltd., London
Sony/Tektronix, Japan
Tektronix Holland,
NV, Heerenveen,
The Netherlands

2465A/2467 Service
TABLE OF CONTENTS
Page
LIST OF ILLUSTRATIONS .................. iii
LIST OF TABLES................................. iv
OPERATORS SAFETY SUMMARY ....
vi
SERVICING SAFETY SUMMARY....... vii
SECTION 1 SPECIFICATION
INTRODUCTION.............................. 1-1
PERFORMANCE CONDITIONS...... 1-1
SECTION 2 OPERATING INFORMATION
SAFETY ........................................... 2-1
LINE VOLTAGE SELECTION.......... 2-1
LINE FUSE....................................... 2-1
POWER CORD................................ 2-1
INSTRUMENT COOLING................ 2-1
OPERATING INFORMATION.......... 2-1
START-UP....................................... 2-2
REPACKAGING FOR SHIPMENT
.. 2-2
SECTION 3 THEORY OF OPERATION
INTRODUCTION................................... 3-1
SECTION ORGANIZATION............. 3-1
HYBRID AND INTEGRATED
CIRCUIT DESCRIPTIONS ..............
3-1
BLOCK DIAGRAM........................... 3-1
BLOCK DESCRIPTION ................... 3-1
DETAILED CIRCUIT DESCRIPTION 3-5
INTRODUCTION.............................. 3-5
PROCESSOR AND DIGITAL
CONTROL........................................ 3-5
FRONT-PANEL SCANNING and
ANALOG CONTROLS..................... 3-9
FRONT-PANEL CONTROLS...........
3-11
ATTENUATORS AND PREAMPS .. 3-13
DISPLAY SEQUENCER,
TRIGGERS, AND SWEEPS ............ 3-17
VERTiCAL CHANNEL SWiTCH
AND OUTPUT AMPLIFIERS........... 3-23
READOUT........................................ 3-27
HIGH VOLTAGE POWER SUPPLY
AND CRT
FOR 2465A ONLY.......... 3-35
HIGH VOLTAGE POWER SUPPLY
AND MCP-CRT FOR 2467 ONLY... 3-40
LOW VOLTAGE POWER SUPPLY. 3-46
LOW-VOLTAGE REGULATORS.....
3-51
POWER DISTRIBUTION................. 3-53
INTERCONNECTIONS .................... 3-53
SECTION 4 PERFORMANCE CHECK AND
FUNCTIONAL VERIFICATION
Page
INTRODUCTION ................................ 4-1
PREPARATION................................ 4-1
VERTICAL.......................................... 4-4
TRIGGERING ..................................... 4-15
HORIZONTAL .................................... 4-20
COUNTER/TIMER/TRIGGER
CHECKS............................................. 4-27
HORIZONTAL (cont) .......................... 4-32
CALIBRATOR,EXTERNAL
Z-AXIS AND GATE OUTPUTS.......... 4-34
ADDITIONAL FUNCTIONAL
VERIFICATION................................... 4-36
WORD RECOGNIZER CHECKS....... 4-38
SECTION 5 ADJUSTMENT PROCEDURE
INTRODUCTION................................... 5-1
POWER SUPPLIES........................... 5-2
2467 CRT ADJUSTMENTS
SN 8011012 AND UP........................ 5-4
2465A CRT ADJUSTMENTS
SN 8014331 AND UP........................ 5-7
DAC
REF, CH 1 AND CH 2
INPUT CAPACITANCE, AND
VERTICAL READOUT JITTER
ADJUSTMENTS................................. 5-10
AUTOMATIC CALIBRATION
CONSTANTS, HORIZONTAL
AND VERTICAL GAIN,
CENTERING, AND TRANSIENT
RESPONSE ADJUSTMENTS............ 5-13
CAL
01-HORIZONT AL.................. 5-13
CAL
02-VERTICAL ....................... 5-17
CAL
03- TRIGGERING .................. 5-18
CAL
04-CH 2 DELAY
ENABLE/DISABLE .......................... 5-19
CAL
05-Set HRS ON and
PWR ON/OFF CYCLES................... 5-20
CAL
06-VERTICAL
TRANSiENT RESPONSE................ 5-20
CAL
O7-READOUT CENTERING
AND GAIN........................................ 5-23
DYNAMIC CENTERING,
DC BALANCE, AND
X-Y PHASE DIFFERENTIAL
ADJUSTMENTS................................. 5-24
2467 CRT ADJUSTMENTS
SN 8011011 AND BEFORE.............. 5-27
2465A CRT ADJUSTMENTS
SN 8014330 AND BEFORE.............. 5-30

2465A/2467 Service
TABLE OF CONTENTS (cont)
Page
SECTION 6 MAINTENANCE
STATIC-SENSITIVE COMPONENTS .. 6-1
PREVENTIVE MAINTENANCE............ 6-2
INTRODUCTION.............................. 6-2
GENERAL CARE............................. 6-2
INSPECTION AND
CLEANING....................................... 6-2
LUBRICATION................................. 6-4
SEMICONDUCTOR CHECKS......... 6-4
PERIODIC READJUSTMENT ......... 6-4
TROUBLESHOOTING.......................... 6-5
INTRODUCTION.............................. 6-5
TROUBLESHOOTING AIDS ........... 6-5
TROUBLESHOOTING
EQUIPMENT.................................... 6-7
TROUBLESHOOTING
TECHNIQUES.................................. 6-7
DIAGNOSTIC ROUTINES .. ............. 6-10
CORRECTIVE MAINTENANCE........... 6-20
INTRODUCTION.............................. 6-20
MAINTENANCE PRECAUTIONS.... 6-20
OBTAINING REPLACEMENT
PARTS ............................................. 6-20
MAINTENANCE AIDS ..................... 6-21
INTERCONNECTIONS .................... 6-21
TRANSISTORS, INTEGRATED
CIRCUITS, AND HYBRID
CIRCUITS ........................................ 6-22
SOLDERING TECHNIQUES ........... 6-22
REMOVAL AND REPLACEMENT
INSTRUCTIONS .............................. 6-24
SECTION 7 OPTIONS
INTRODUCTION.............................. 7-1
POWER CORD OPTIONS............... 7-1
OPTION 01 (2465A ONLY).............. 7-1
OPTION 1R...................................... 7-1
ii
Page
OPTION 05 ...................................... 7-2
OPTIONS 06 AND 09 ...................... 7-2
OPTION 10 ...................................... 7-2
OPTION 11 ...................................... 7-2
SECTION 8 2465A REPLACEABLE ELECTRICAL
PARTS
SECTION 9 2467 REPLACEABLE ELECTRICAL PARTS
SECTION 10 DIAGRAMS
ACRONYM DICTIONARY
SECTION 11 2465A REPLACEABLE MECHANICAL
PARTS
SECTION 12 2467 REPLACEABLE MECHANICAL
PARTS
CHANGE INFORMATION
Diagnostic and Troubleshooting Information:
DIAGNOSTIC ROUTINES.......................... 6-10
TROUBLESHOOTING CHARTS................ SECTION 10

Figure
1-1
1-2
2-1
3-1
3-1
3-2
3-3
3-4
3-5
3-6
3-7
3-8
3-9
3-10
3-11
3-12
6-1
6-2
6-3
10-1
10-2
10-3
10-4
10-5
10-6
10-7
10-8
10-9
10-10
10-11
10-12
10-13
2465A/2467 Service
LIST OF ILLUSTRATIONS
Page
2465A Dimensional drawing.... .. ................................ .. ............. .. .......... .. ....................................... 1-22
2467 Dimensional drawing ........................................ .. .................................................................. 1-23
Line selector switch, line fuse, and detachable power cord......................................................... 2-2
Instrument block diagram.............................................................................................................. 3-2
Instrument block diagram (cont).................................................................................................... 3-3
Address decoding .......................................................................................................................... 3-7
Front-panel switch matrix.............................................................................................................. 3-12
Scale illumination circuit ....
.. . .. ........ .. .................... .. .......... .. ....... .. .. .. .............................................. 3-16
Sweep generator ........................................................................................................................... 3-22
Developing the readout display......................................................
.. .. .. .. .. . .. .................................. 3-28
Readout display priorities .............................................................................................................. 3-32
Timing of Refresh Prioritizer.......................................................................................................... 3-33
De restorer circuit (2465A only)..................................................................................................... 3-38
De restorer circuit (2467 only} A 3-43
Timing relationships of the Inverter Drive signals......................................................................... 3-48
Simplified schematic of control network ....................................................................................... 3-49
Multipin Connector Orientation ..................................................................................................... 6-6
Ribbon Cable Removal .................................................................................................................. 6-26
Power Switch Push Button Disassembly......................................................................................
6-31
Color codes for resistors and capacitors.
Semiconductor lead configurations.
Locating components on schemcatic diagrams and circuit board illustrations.
Instrument block diagram.
AS-Control board.
AS-Front Panel board.
A 1-Main and AS-Scale Illumination boards.
A 15-Holdoff board.
A
14-Dynamic Centering board.
A4-Readout board.
A9-2467 High Voltage board.
A9-2465A High Voltage board.
A2-Regulator and A3-lnverter boards.
iii

2465A/2467 Service
LIST OF TABLES
Table Page
1-1 2465A/2467 Electrical Characteristics........................................................................................... 1-2
1-2 Option 06 ( CIT /T) Electrical Characteristics.................................................................................. 1- 11
1-3 Resolution Selections . .... .. .. .. .. .. ... .. .. .... . .. .. .. .. .... . .. . .... . .. . .. .. ............ ...... .......... ... .. . .. .. . .. . .. .... .. .. .. . .. . .. . 1-16
1-4 Resolution Selections .....
.. ...... .. ....... .. ....... ...... .. .. .... .... .. .... .. .... . .. .. .. .... .. .. .. ...... .. .... .. ..... .. ....... .. . ...... . 1- 16
1-5 Option 09 (WR) Electrical Characteristics .... .. .. . .... . ...... .. .. .. .. . ........ . .... .. .. . .... . .. .. .... . ........ .. .......... . .. . 1-17
1-6 2465A Mechanical Characteristics
.... .. .. .. ...... ... .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .... .. .. .. .. .. . .... . .... . .. . .... .. .. . .. .. .. . .. .. 1-18
1-7
2467 Mechanical Characteristics .................................................................................................. 1-19
1-8 Environmental Requirements......................................................................................................... 1-20
2-1 Power Cord and Voltage Data ...................................................................................................... 2-3
3-1 Intensity Control ............................................................................................................................ 3-19
3-2 Trigger Source Selection ............................................................................................................... 3-21
3-3 Vertical Display Selection .............................................................................................................. 3-24
3-4 Horizontal Display Selection.......................................................................................................... 3-26
3-5 Blanking
and Intensity Control Selection ...................................................................................... 3-27
3-6 Readout Display Mode Selection ..................................................................................................
3-31
3-7 Operation of Prioritizer Shift Register........................................................................................... 3-32
4-1 Test Equipment Required.............................................................................................................. 4-2
4-2
Accuracy Limits.............................................................................................................................. 4-7
4-3
Accuracy Limits.............................................................................................................................. 4-9
4-4 CH 3 and CH 4 Accuracy Limits .. . .. . .. . .. .. .. ... .. .. .. .. .. .. .... .... ........ ... .. .. .. ...... .. .. .. ... .. .. .. .. . .. . .... ... .... .. .. .. 4-11
4-5 CH 1 or CH 2 Triggering Conditions . .. . .... .. . ...... . ...... .. .. . .. .. .......... .. .... .. .. .. .. .. ...... . .... .. .. .. . .. . .......... . .. 4-16
4-6 CH 3 or CH 4 Triggering Conditions ........ . .. .. .... .. ........ . .. . .. .. .. ... .. ... .... .. . .. . ...... .. ........ . .... . .. .. .. .. ... .. ... 4-17
4-7 Settings for A and B Timing Accuracy Checks ..... .. .... .. .. . .. .. .. .. . .. .. .. ... .. . .. .. .. .. .. .. ... .. ... .. .. .. . .. . .. .. .. ... 4-22
4-8 Horizontal Timing Accuracy Checked Against the Graticule........................................................ 4-23
4-9 Delta Time Display Accuracy......................................................................................................... 4-25
4-10 Delayed Sweep Delta Time Accuracy .. .. .. .. .. ... .. . .. .. .... .... .. . .. .. ... .. .... .... . ...... .. . ... . .... ...... .. .. .. . .. . .. .. .. ... 4-26
4-11 Data Setup Time Checks .. . ... .. .. .. .. .. .. ... .. .... . ... .. .. .... .. .... . ... .. ... .... ... .. .. .. .. .. .. .. . .. ... ... .. .. . .... .. .. . .. ..... .. . .. 4-39
4-12 Data Hold Time Checks................................................................................................................. 4-40
4-13 Minimum Clock
Pulse Width Checks ............................................................................................ 4-40
4-14
Delay From Selected Edge to WORD RECOG OUT Checks ...................................................... 4-41
4-15 Word Recognition Delay................................................................................................................ 4-41
5-1 Power Supply Voltage and Ripple Tolerances.............................................................................. 5-3
5-2
Horizontal Timing ........................................................................................................................... 5-15
5-3 Horizontal Timing ........................................................................................................................... 5-16
5-4 Vertical Calibration Signals............................................................................................................ 5-17
5-5 Vertical Calibration Signals............................................................................................................ 5-18
6-1 Susceptibility to Static Discharge Damage................................................................................... 6-1
6-2 External Inspection Check List...................................................................................................... 6-2
6-3 Internal Inspection Check List....................................................................................................... 6-3
6-4
Sequence of Diagnostic Tests....................................................................................................... 6-11
6-5 Sequence of Exerciser Routines .. .. .... .. ... .. .. .... . .. . .. . .. .. .. .... .. .... .... . .. . .. .. .. ...... .. .. .. .... .. .... .. . .. .... . ...... . .. 6-13
6-6 Kernel Test Failure Codes ............................................................................................................. 6-13
6-7 Front-Panel LED Option Codes ..................................................................................................... 6-13
6-8 Front-Panel LED Device Codes..................................................................................................... 6-14
6-9 Potentiometer Codes and Values (Exerciser 01) .......................................................................... 6-16
6-10
Pots and Switches Column .. . .. .. .. .. .. .... .. .. .. .. .. ..... .. .... .. ...... .. . .... .. ...... .. ... .. . .... ..... .... . .. . .. ....... .. ........ .. 6-17
6-11 NOP Test Data .............................................................................................................................. 6-19
6-12
Maintenance Aids .......................................................................................................................... 6-21
iv

2465A/2467 Service
OPERATORS SAFETY SUMMARY
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.
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.
Terms as Marked on Equipment
CAUTION indicates a personal injury hazard not immedi-
ately 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 cau-
tionary or other information is to be found. For
maximum input voltage see Table 1-1 .
Symbols as Marked on Equipment
DANGER - High voltage.
Protective ground (earth) terminal.
ATTENTION -Refer to manual.
Power Source
This product is intended to operate from 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 cord is essential for safe
operation.
vi
Grounding the Product
This product is grounded through the grounding conductor
of the power cord. To avoid electrical shock, plug the
power cord into a properly wired receptacle before making
any connections to the product input or output terminals.
A protective ground connection by way of the grounding
conductor in the power cord is essential for safe operation.
Danger Arising from Loss of Ground
Upon loss of the protective-ground connection, all accessi-
ble conductive parts (including knobs and controls that
may appear to be insulated) can render an electric shock.
Use the Proper Power Cord
Use only the power cord and connector specified for your
product.
Use only a power cord that is in good condition.
For detailed information on power cords and connectors,
see Table 2-1.
Use the Proper Fuse
To avoid fire hazard, use only a fuse of the correct type,
voltage rating and current rating as specified in the parts
list for your product.
Do Not Operate in Explosive Atmospheres
To avoid explosion, do not operate this instrument in an
explosive atmosphere unless it has been specifically
certified for such operation.
Do Not Remove Covers or Panels
To avoid personal injury, do not remove the product cov-
ers or panels. Do not operate the instrument without the
covers and panels properly installed.

2465A/2467 Service
SERVICING 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 pro-
duct unless another person capable of rendering first
aid
and resuscitation is present.
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 or components while power is
on.
Disconnect power before removing protective panels,
soldering, or replacing components.
Power Source
This product is intended to operate from a power source
that does 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 cord is essential for safe
operation.
vii

Section 1-2465A/2467 Service
SPECIFICATION
INTRODUCTION
The TEKTRONIX 2465A and 2467 Oscilloscopes are
portable 300-MHz
and 350-MHz bandwidth instruments
having four-channel vertical deflection systems. Channel 1
and Channel 2 provide calibrated deflection factors from
2
mV per division to 5 V per division. For each of these
channels, input impedance
is selectable between two
values: either 1
þÿM© in parallel with 15 pF, or 50 þÿ©internal
termination. Input-signal coupling with 1
þÿM© impedance
can be selected as either AC or DC. Channel 3 and Chan-
nel 4 have deflection factors of either 0.1 V or 0.5 V per
division.
Each of these channels has an input impedance
of 1
þÿM© in parallel with 15 pF, with DC input-signal
coupling.
The trigger system works automatically for most sig-
nals. They operate
in various modes, from any channel,
with couplings for a wide range of signals. The trigger
system gives stable displays from
de to 500 MHz.
The horizontal deflection system provides calibrated
sweep speeds from i
.5 s per division to 500 ps per divi-
sion, including the effects of the
X10 magnifier and the
calibrated variable between the 1-2-5 steps. Horizontal
displays include A-Sweep, B-Sweep (delayed), A alternated
with
B, and CH 1 (for X/Y displays).
The AUTO, SAVE, and RECALL features save time and
prevent errors. Pressing the AUTO Setup button gives a
workable setup for almost any signal. For repetitive mea-
surements, the Save
and Recall functions record and
immediately or sequentially restore as many as 30 instru-
ment setups. The SETUP buttons operate
all instrument
functions, including the extended function options.
Direct, on-screen readouts of time measurements, volt-
age measurements, scale factors, trigger levels, and
auxiliary information also save time
and improve operator
confidence.
The 2467 yields 4 divisions/ns visual writing rate. This
is about 100 times faster than conventional, high-
performance oscilloscopes.
The 2467 visibly displays any
signal, at
any repetition-rate, at any sweep speed, in typi-
cal room light. Visible single-shots include 1 ns steps at
500 ps/division.
The instruments are shipped with the following stan-
dard accessories:
2 Probe packages (2465A)
4 Probe packages (2467)
1 Snap-lock accessories pouch
1 Zip-lock accessories pouch
1 Operators manual
1 Power cord (installed)
1
2-A, 250-V fuse
1 Clear plastic CRT filter
1 Blue plastic CRT filter (installed)
1 Front-panel cover
1 Operators pocket reference card
For part numbers and further information about both
standard and optional accessories, refer to "Options
and
Accessories" (Section 7) of the instruments Operators
manual or the Accessories information at the rear of this
manual. Your Tektronix representative or local Tektronix
Field Office can also provide accessories information and
ordering assistance.
PERFORMANCE CONDITIONS
The following electrical characteristics (Table 1-1) are
valid for the instrument when it has
been adjusted at an
ambient temperature between +20°C and +30°C, has
had a warm-up period of at least 20 minutes, and is
operating at an ambient temperature between -15°C and
+
55 °C (unless otherwise noted).
Items listed
in the "Performance Requirements" column
define the measurement capabilities of the instruments.
Supplementary measurement conditions may also
be listed
in the "Performance Requirement" column.
Mechanicai characteristics are iisted
in Tabies 1-6 and
1-7.
Environmental characteristics are given
in Table 1-8.
The oscilloscope meets the environmental requirements of
MIL-T-28800C for Type
111, Class 3, Style C equipment,
with the humidity and temperature requirements defined
in
paragraphs 3.9.2.2, 3.9.2.3, and 3.9.2.4.
1-1

Specification-2465A/2467 Service
Table 1-1
2465A/2467 Electrical Characteristics
Characteristics Performance Requirements
VERTICAL DEFLECTION
SYSTEM-CHANNEL 1 AND CHANNEL 2
Deflection Factor
Range 2 mV/division
to 5 V/division in a 1-2-5 sequence of 11 steps.
Accuracy 1
þÿM© input, noninverted.
+15°C to +35°C
On-Graticule Accuracy Within ± 2% at any VOLTS/DIV setting for a four or five-division
signal centered on the screen.
ΔV V Accuracy (using cursors over entire
±(1.25% of reading +0.03 div + signal aberrations).
graticule area)
-15°C to + 15°C and + 35°C
to
Add ± 2% of reading.a
+55°C
50 þÿ©Coupling Add ± 1%
of reading.
CH 2 Inverted Add ± 1%
of reading.
þÿ”V Range ± 8 X VOLTS/DIV setting.a
V/DIV VARiable, noninverted Continuously variable between VOLTS/DIV settings. Extends
deflection factor
to >12.5 V/division.
Frequency Response Bandwidth is measured with a leveled, low distortion, þÿ50©source,
sine-wave generator, terminated in 50 þÿ©The reference signal
amplitude is set
at the lesser of 6 divisions or the maximum leveled
amplitude.
Bandwidth with probe is checked using a probe-tip-to-GR (017-
0520-00) termination adapter.
Bandwidth with external termination is checked using a BNC þÿ50©
feed through terminator (011-0049-01
).
-3 dB Bandwidth Using standard accessory probe
or internal þÿ50© termination.
+15°C to +35°C
De to 350 MHz.
-15°C to + 15°C and + 35°C to
De to 300 MHz.a
+55°C
-4.7 dB Bandwidth Using þÿ50©external termination on þÿ1M©input.
8Performance requirement not checked
in manual.
1-2

Specification-2465A/2467 Service
Table 1-1 (cont)
Characteristics Performance Requirements
AC Coupled, Lower -3 dB 10 Hz or less.a
Frequency
With Standard Accessory Probe 1 Hz or less.
Step Response Rise Time
<=1 ns (calculated from Tr=0.35/BW).a
Channel Isolation
>=100:1 attenuation of deselected channel at 100 MHz; >=50:1 at
350 MHz, for an eight-division input signal from 2 mV per division
to 500 mV per division, with equal VOLTS/DIV settings on both
channels.
Displayed Channel 2 Signal Adjustable through a range of at least
-500 ps to +500 ps.a
Delay with Respect to Channel
1 Signal
Input R and C
(1 þÿM©)
Resistance 1
þÿM© ±0.5%.
8
Capacitance 15 pF
±2 pF. a
Maximum Input Voltage
DC, AC, or GND Coupled 400 V
(de + peak ac).
800 V p-p ac at 10 kHz or less.a
Input R (50 þÿ©)
Resistance
50 þÿ© ±1%. a
VSWR
De to 300 MHz <=1.3:1. a
300 to 350 MHz
<=1.5:1 . a
Maximum Input Voltage 5 V rms, averaged for 1 second;
±50 V peak.8
Cascaded Operation Channel 2 Vertical Signal Output into Channel 1 input;
DC coupled
using a 50 þÿ©RG-58C/U coaxial cable, with 1
þÿM© DC or 1 þÿM© AC
Channel 1 input coupling; with Channel 1 and Channel 2
VOLTS/DIV set at 2 mV and 20 MHz Bandwidth Limit On.
Deflection Factor 200 µV per division ± 10%.
CMRR (ADD Mode with
At least 20:1 at 50 MHz for common-mode signals of eight
Channel 2 inverted) divisions
or less, with VAR VOLTS/DIV control adjusted for best
CMRR at 50 kHz, at any VOLTS/DIV setting.
•Performance requirement not checked in manual.
1-3

Specification-2465A/2467 Service
Table 1-1 (cont)
Characteristics Performance Requirements
VERTICAL DEFLECTION
SYSTEM-CHANNEL 3 AND CHANNEL 4
Deflection Factors
Values
Accuracy
Frequency Response
- 3 dB Bandwidth
+15°C to +35°C
-15°C to +15°C and +35°C to
+55°C
-4.7 dB Bandwidth
+15°C to +35°C
-15°C to +15°C and +35°C to
+55°C
Step Response Rise Time
Channel Isolation
Signal Delay Between Channel
1 and Either Channel 3 or
Channel 4
Input Resistance
Input Capacitance
Maximum Input Voltage
•Performance requirement not checked in manual.
1-4
100 mV and 500 mV per division.
Within ± 10%.
Bandwidth is measured with a leveled, low distortion, þÿ50©source,
sine-wave generator, terminated
in 50 þÿ©. The reference signal
amplitude is set at the lesser of 6 divisions or the maximum leveled
amplitude. External termination bandwidth is checked with a 4
division reference signal.
Bandwidth with probe
is checked using a probe-tip-to-GR (017-
0520-00) termination adapter.
Bandwidth with external termination
is checked using a BNC þÿ50©
feed through terminator (011-0049-01
).
Using standard accessory probe.
De to 350 MHz.
De to 300 MHz.a
Using þÿ50©external termination.
De to 350 MHz.a
De to 300 MHz.a
<=1 ns (calculated from Tr=0.35/BW). a
>=50: 1 attenuation of deselected channel at 100 MHz with an 8-
division input signal.
Within ± 1
.0 ns, measured at the 50% points.a
1
þÿM© ±1%. a
15 pF
±3 pF. a
400 V (de+ peak ac).
800 V p-p ac at 10 kHz or less.a

Specification-2465A/2467 Service
Table
1-1 (cont)
Characteristics Performance Requirements
VERTICAL DEFLECTION
SYSTEM-ALL CHANNELS
Low-frequency Linearity
Bandwidth Limiter
Vertical Signal Delay
Chopped Mode Switching Rate
Minimum P-P Signal Amplitude for Stable Triggering
from Channel 1 or Channel 2 Source
DC Coupled
NOISE
REJ Coupled
AC Coupled
HF REJ Coupled
LF REJ Coupled
Minimum P-P Signal Amplitude for Stable Triggering
from ADD Source
Minimum P-P Signal Amplitude for Stable Triggering
from
CH 3 or CH 4 Source
Minimum P-P Signal Amplitude for Stable Triggering
from Composite, Multiple Channel Source, ALT
Vertical Mode
8Performance
requirement not checked in manual.
0.1 division or less compression or expansion of a two-division,
center-screen signal when positioned anywhere within the graticule
area.
Reduces upper 3
dB bandpass to a limit of 13 MHz to 24 MHz.
At least 30 ns
of the sweep is displayed before the triggering event
is displayed at any SEC/DIV
>=10 ns/div. At 5 ns/div, at least 10 ns
of the sweep is displayed before the triggering event.a
With displayed SEC/DIV
in the 20 µs to 2 µs/div range, the
switching rate is 2.5 MHz ± 0.2%. Otherwise, the switching rate is
1 MHz ± 0.2%. The display cycle rate equals the chop switching
rate divided by the number
of channels displayed. The chop
switching rate is modulated slightly
to minimize waveform breaks
with repetitive signals.a
TRIGGERING
0.35 division from de
to 50 MHz; increasing to 1.0 division at
300 MHz and 1.5 divisions at 500 MHz.
<=1.2 divisions from de to 50 MHz; increasing to 3 divisions at
300 MHz and 4.5 divisions at 500 MHz.
0.35 division from 60 Hz to 50 MHz; increasing to 1.0 division at
300 MHz and 1.5 divisions at 500 MHz. Attenuates signals below
60 Hz.
0.5 division from de
to 30 kHz.
0.5 division from 80 kHz
to 50 MHz; increasing to 1.0 division at
300 MHz and 1.5 divisions at 500 MHz.
Add 0.5 division
to CH 1 or CH 2 requirement at 300 MHz and
500 MHz.
0.5 x
CH 1 or CH 2 requirement.a
Checked at 50 mV per division.
Add 1 division to the single-channel source specification.
1-5

Specification-2465A/2467 Service
Table 1-1 (cont)
Characteristics Performance Requirements
Maximum P-P Signal Rejected by NOISE
REJ
COUPLING Signals Within the Vertical Bandwidth
CH 1 or CH 2 SOURCE
>=0.4 division for VOLTS/DIV settings of 10 mV /div and higher.
Maximum noise amplitude rejected is reduced at 2
mV /div and
5 mV/div.
CH 3 or CH 4 SOURCE
>=0.2 division.a
Jitter
2467
<=100 ps with 5 divisions of 300 MHz at 500 ps/division.
2465A
<=50 ps with 5 divisions of 300 MHz at 500 ps/division.
LEVEL Control Range
CH I or CH 2 SOURCE ± 18 X VOLTS/DIV setting.a
CH 3 or CH 4 SOURCE
±9 X VOLTS/DIV setting.a
LEVEL Readout Accuracy For triggering signals with transition times greater than
20 ns.
CH 1 or CH 2 SOURCE
+15°C to +35°C
Within ± [3% of setting + 3% of p-p signal + 0.2 division +
0.5 mV + (0.5
mV x probe attenuation factor)] with Vertical Input
at 1
þÿM© DC, CH 2 Source Not Inverted, and Trigger DC Coupled.
-15°C to +35°C and +35°C to Add 1.5 mV X probe attenuation to
+15°C to +35°C
+55°C
specification.a
50 þÿ©Input Add ± 1% to 1
þÿM© input specification.a
CH 2 Inverted Add ± 1%
of setting to non-inverted specification.a
NOISE
REJ Coupled Add
±0.6 division to DC Coupled specifications.a
CH 3 or CH 4 SOURCE Within ± [3%
of setting + 4% of p-p signal + 0.1 division +
(0.5 mV x probe attenuation factor)] and Trigger
DC Coupled.a
NOISE
REJ Coupled Add ± 0.3 division to the
DC Coupled specification.a
AUTO LVL Mode Maximum Triggering Signal Period
A SEC/DIV Setting
<10 ms At least
20 ms. a
10 ms to 50 ms
At least four times the A-SEC/DIV setting.a
>50 ms At least 200
ms.a
8Performance requirement not checked
in manual.
1-6

Specification-2465A/2467 Service
Table
1-1 (cont)
Characteristics Performance Requirements
AUTO Mode Maximum Triggering Signal Period
A-SEC/DIV Setting
<10 ms At least 80 ms.a
10 ms to 50 ms At least 16 times the A-SEC/DIV setting.a
>50 ms At least 800
ms. a
AUTO LVL Mode Trigger Acquisition Time Eight to 100 times the AUTO LVL Mode maximum triggering signal
period, depending on the triggering signal period and waveform.
Trigger Holdoff
Minimum
2467 The greater of the A-SEC/DIV setting value
or 1 µs, within +33%
+ 500 ns to -10%. a
2465A The greater of the A-SEC/DIV setting value
or 2 µs, within +33%
to -10%, except 1 µS at 5 ns/div.a
Variable Increases trigger holdoff time to 10 to 25 times the minimum
holdoff.
SLOPE Selection Conforms
to trigger-source waveform or ac power-source
waveform.
HORIZONTAL DEFLECTION SYSTEM
A Sweep Time Base Range 500 ms/div to 5 ns/div in a 1-2-5 sequence of 25 steps. X10 MAG
extends maximum sweep rate
to 500 ps/div.
B Sweep Time Base Range 50 ms/div
to 5 ns/div in a 1-2-5 sequence of 22 steps. X10 MAG
extends maximum sweep rate
to 500 ps/div.
Timing Accuracy
+15°C to +35°C, A Sweep, with SEC/DIV at 100 ms/div or
faster.
Sweep Accuracy Unmagnified ±(0.7% of time interval +
0.6.% of full scale).
þÿ”tAccuracy With Cursors, Unmagnified
±(0.5% of time interval + 0.3% of full scale).
þÿ”tAccuracy with Sweep Delay ± (0.3%
of time interval + 0.1 % of full scale).
Delay Accuracy, A Sweep Trigger
to Start of B ±(0.3% of delay setting + 0.6% of full scale) +o to -25 ns.
Sweep
B-Sweep Accuracy and þÿ”tAccuracy with Cursors on Add ± 0.3%
of time interval to A-Sweep specifications.
B Sweep
8
Performance requirement not checked in manual.
1-7

Specification-2465A/2467 Service
Table 1-1 (cont)
Characteristics Performance Requirements
X10 MAG Accuracy Add ± 0.5%
of time interval to unmagnified Sweep and þÿ”t Cursors
specifications. Exclude the first 0.5 division after the sweep starts
(the first 0.5%
of the full 100 division sweep).
500 ms
or 200 ms/div Timing Accuracy (A Sweep Add ± 0.5%
of interval to specifications for A SEC/DIV at 100 ms
only)
or faster.
SEC/DIV VAR Timing Accuracy Add 2%
of time interval to sweep accuracy specifications when
VAR is out
of detent.
Timing Accuracy
(-15°C to +15°C and +35°C to Add ± 0.2%
of time interval to all þÿ”t and delay specifications. Add
+55°C)
± 0.5% of interval to sweep accuracy specification.a
þÿ”t Readout Resolution Greater
of either 10 ps or 0.025% of full scale.a
þÿ”t Range ± 10 times A-SEC/DIV setting with Cursors, ± 9.95 times A-
SEC/DIV setting with Sweep Delay.a
Sweep Delay Range 0
to 9.95 times the A SEC/DIV setting, from 500 ms to 10 ns. A-
Sweep triggering event is observable on B Sweep with zero delay
setting for A SEC/DIV settings 50
µSor faster.a
Delay Jitter
2467 Within
0.01 % (one part or less in 10,000) of the maximum available
delay, plus 100
ps.a
2465A Within 0.004% (one part
or less in 25,000) of the maximum
available delay, plus 50 ps.a
Horizontal POSITION Range Start
of 1 ms per division sweep can be positioned from right of
graticule center to at least 10 divisions left of graticule center.
Some portion
of 1 ms per division sweep is always visible with X10
MAG off. a
X-Y Operation
X-Axis Deflection Factor Range, Variable, and Same as Channel 1.
Input Characteristics
Deflection Factor Accuracy Same as Channel 1.a
X-Axis Bandwidth
De to 3 MHz.
Phase Difference Between X and Y with BW
<=1 ° from de to 1 MHz; <=3° from 1 MHz to 2 MHz.
Limit Off
X-Axis Low-frequency Linearity
0.1 division or less compression or expansion of a two-division,
center-screen signal when positioned within the graticule area.
8Performance requirement not checked in manual.
1-8

Characteristics
Cursor Position Range
Delta Volts
(.l V}
Delta Time (.lt)
Graticule
Size
2467
2465A
Markings
Trace Rotation Range
Standard Phosphor
Visual Writing Rate
2467
2465A
Photographic Writing Speed (2467)
Display Intensity Limitation (2467)
Sensitivity
De to 2 MHz
2 MHz to 20 MHz
Input Resistance
Maximum Input Voltage
8
Performance requirement not checked in manual.
Specification-2465A/2467 Service
Table
1-1 (cont)
Performance Requirements
DISPLAY
At least the center 7.6 vertical divisions.a
At least the center 9.6 horizontal divisions.a
68 mm X 85 mm. a
80 mm X 100 mm. a
8 major divisions vertically and 10 major divisions horizontally, with
auxiliary markings.a
Adequate to atign trace with the center horizontal graticule line.
P31 a
<=4 divisions/ns.
NOTE
Using the standard-accessory color filter, no more than 5 bright
spots will be visible
at maximum intensity and no bright-spot halo
will be visible within the center 7 X 9 divisions. Additional bright
spots may be visible after displaying a high-intensity trace. These
added spots will extinguish when intensity is
set to minimum.
>=20 divisions/µs.
>= 10 divisions/ns.
Control settings and trigger rate are monitored to limit the display
intensity after a time
of no control activity.a
Z-AXIS INPUT
Positive voltage decreases intensity; +2 V blanks a maximum
intensity trace.
+2 V modulates a normal intensity trace.a
9 þÿk© ±10%. a
± 25 V peak; 25 V p-p ac at 10 kHz or less.a
1-9

Specification-2465A/2467 Service
Table 1-1 (cont)
Characteristics Performance Requirements
SIGNAL OUTPUTS
CALIBRATOR With A SEC/DIV set to 1 ms.
Output Voltage and Current 0.4 V ± 1% into a þÿ1M©load, 0.2 V ± 1.5% into a
þÿ50© load, or
8 mA ± 1.5% into a short circuit.a
Repetition Period
Two times the A SEC/DIV setting for SEC/DIV from 100 ns to
100 ms.
Accuracy ±
0.1 %, during sweep time.
CH 2 SIGNAL OUT
Output Voltage 20 mV/division ± 10% into 1
þÿM© 10 mV/division ± 10% into 50 þÿ©.
Offset ± 20 mV into 1 þÿM©,when de balance has been performed within
± 5°C of the operating temperature.
A GATE OUT and B GATE OUT
Output Voltage 2.4 V
to 5 V positive-going pulse, starting at OV to 400 mV.
Output Drive Will supply 400 µA during
HI state; will sink 2 mA during LO state.a
AC POWER SOURCE
Source Voltage
Nominal Ranges
115 V 90 V
to 132 V.
230V
180 V to 250 V.
Source Frequency 48 Hz to 440 Hz.a
Fuse Rating 2 A, 250 V, AGC/3AG, Fast blow;
or 1.6 A, 250 V, 5 X 20 mm
Quick-acting.a
Maximum Power Consumption (fully optioned 120 watts (180
VA). a
instrument)
Primary Circuit Dielectric Voltage Withstand Test 1500 V rms, 60 Hz for 10 seconds without breakdown.a
Primary Grounding Type test
to 0.1 þÿ©maximum. Routine test to check grounding
continuity between chassis ground and protective earth ground.a
•Performance requirement not checked in manual.
1-10

Specification-2465A/2467 Service
Table 1-2
Optioii 08
(CIT /T) Electrical Characteristics
Characteristics
Maximum Input Frequency for Count and Delay by
Events
Minimum Width
of High or Low State of Input Signal
for Count and Delay by Events
Sensitivity
De to 50 MHz (0.5 Hz to 50 MHz for
Frequency and Period)
CH 1 and CH 2
CH 3 and CH 4
50 MHz to 150 MHz
CH 1 and CH 2
CH 3 and CH 4
Ranges
Automatic Ranging
PErformance
requirement not checked in manual.
Performance Requirements
SIGNAL INPUT
With DC Coupling of A Trigger and B Trigger.
>=150 MHz.
<=3.3 ns.
For Count, Delay by Events, and Logic Trigger Functions
Excluding Word Recognizer.
1.5 divisions.
0.75 division.
4.0 divisions.
2.0 divisions.
FREQUENCY
RANGE LSD8
1 Hz 100 nHz
10 Hz 1 µHz
100 Hz 10 µHz
1 kHz 100
µHz
10 kHz 1 mHz
100 kHz 10 mHz
1 MHz 100 mHz
10 MHz 1 Hz
100 MHz 10 Hz
150 MHz 100 Hz
Upranges at 100%
of full scale; downranges at 9% of full
scale. Downrange occurs at 90 MHz on 150 MHz range.
Full scale corresponds
to the value given in the Range
column. The maximum displayed value for any range is the
Range value minus the LSD value.
1-11