Tektronix THS 720, THS 710 Service Manual
Service Manual
THS 710 & THS 720
TekScope
070-9246-03
This document applies to firmware version 1.00
and above.
Warning
The servicing instructions are for use by qualified
personnel only. To avoid personal injury, do not
perform any servicing unless you are qualified to
do so. Refer to all safety summaries prior to
performing service.
Copyright E T ektronix, Inc. 1995. All rights reserved.
T ektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes
that in all previously published material. Specifications and price change privileges reserved.
Printed in the U.S.A.
T ektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000
TEKTRONIX and TEK are registered trademarks of T ektronix, Inc.
T ek Secure is a registered trademark of Tektronix, Inc.
T ekTools, TekScope, and IsolatedChannel are trademarks of Tektronix, Inc.
WARRANTY
T ektronix warrants that this product will be free from defects in materials and workmanship for a period of three (3) years
from the date of shipment. If any such product proves defective during this warranty period, T ektronix, at its option, either
will repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the
defective product.
In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the
warranty period and make suitable arrangements for the performance of service. Customer shall be responsible for
packaging and shipping the defective product to the service center designated by T ektronix, with shipping charges prepaid.
T ektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the
T ektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any
other charges for products returned to any other locations.
This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate
maintenance and care. T ektronix shall not be obligated to furnish service under this warranty a) to repair damage resulting
from attempts by personnel other than T ektronix representatives to install, repair or service the product; b) to repair
damage resulting from improper use or connection to incompatible equipment; or c) to service a product that has been
modified or integrated with other products when the effect of such modification or integration increases the time or
difficulty of servicing the product.
THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THIS PRODUCT IN LIEU OF ANY
OTHER WARRANTIES, EXPRESSED OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
TEKTRONIX’ RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND
EXCLUSIVE REMEDY PROVIDED TO THE CUST OMER FOR BREACH OF THIS WARRANTY. TEKTRONIX
AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT , SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS
ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.
Service Assurance
If you have not already purchased Service Assurance for this product, you may do so at any time during the product’s
warranty period. Service Assurance provides Repair Protection and Calibration Services to meet your needs.
Repair Protection extends priority repair services beyond the product’s warranty period; you may purchase up to three
years of Repair Protection.
Calibration Services provide annual calibration of your product, standards compliance and required audit documentation,
recall assurance, and reminder notification of scheduled calibration. Coverage begins upon registration; you may purchase
up to five years of Calibration Services.
Service Assurance Advantages
H Priced well below the cost of a single repair or calibration
H Avoid delays for service by eliminating the need for separate purchase authorizations from your company
H Eliminates unexpected service expenses
For Information and Ordering
For more information or to order Service Assurance, contact your T ektronix representative and provide the information
below . Service Assurance may not be available in locations outside the United States of America.
Name VISA or Master Card number and expiration
Company date or purchase order number
Address Repair Protection (1,2, or 3 years)
City , State, Postal code Calibration Services (1,2,3,4, or 5 years)
Country Instrument model and serial number
Phone Instrument purchase date
Table of Contents
Specifications
Operator Information
Theory of Operation
General Safety Summary v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Safety Summary vii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preface ix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Related Manuals ix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Conventions x. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Internal and External Power Sources 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Understanding the Front Panel 2–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting and Using the Probes 2–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main Board 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inverter Board 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Display Module 3–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Switch Assembly 3–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Performance Verification
T est Record 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Performance Verification Procedures 4–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustment Procedures
Required Equipment 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overview of the Adjustment Process 5–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessing the Adjustment-Lockout Jumper 5–3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oscilloscope Adjustment 5–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Meter Adjustment 5–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing the Adjustment-Lockout Jumper 5–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance
Preparation 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preventing ESD 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Cleaning 6–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal and Installation Procedures 6–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 6–28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repackaging Instructions 6–40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
THS 710 & THS 720 Service Manual
i
Contents
Options
Electrical Parts List
Diagrams
Mechanical Parts List
Options 7–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Parts List 8–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagrams 9–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Ordering Information 10–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the Replaceable Parts List 10–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ii
THS 710 & THS 720 Service Manual
List of Figures
Contents
Figure 3–1: Module-level block diagram 3–2. . . . . . . . . . . . . . . . . . . . . . .
Figure 5–1: Location of adjustment-lockout jumper 5–4. . . . . . . . . . . . . .
Figure 5–2: Oscilloscope adjustment setups 5–6. . . . . . . . . . . . . . . . . . . . .
Figure 5–3: Meter adjustment setups 5–9. . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5–4: Relocating the adjustment-lockout jumper 5–11. . . . . . . . . . .
Figure 6–1: Removing the tilt stand 6–8. . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–2: Installing the tilt stand 6–9. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–3: Installing a new front-panel label 6–10. . . . . . . . . . . . . . . . . . .
Figure 6–4: Removing the battery door 6–12. . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–5: Assembling a new front cover 6–13. . . . . . . . . . . . . . . . . . . . . .
Figure 6–6: Installing the gasket 6–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–7: Installing the handle 6–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–8: Removing the display module 6–17. . . . . . . . . . . . . . . . . . . . . .
Figure 6–9: Opening the display cable connector 6–18. . . . . . . . . . . . . . . .
Figure 6–10: Routing cables to the inverter board 6–19. . . . . . . . . . . . . . .
Figure 6–11: Lifting the chassis 6–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–12: Foam pad and hole plug locations on the
back cover 6–21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–13: Routing the battery wires 6–22. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–14: Removing the main board and switch
flex-circuit assembly 6–24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–15: Foam pad locations on the chassis 6–25. . . . . . . . . . . . . . . . . .
Figure 6–16: Reassembling the chassis 6–27. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–17: Battery connector location 6–29. . . . . . . . . . . . . . . . . . . . . . . .
Figure 6–18: Bypassing the ON/STBY switch 6–31. . . . . . . . . . . . . . . . . . .
Figure 10–1: Exploded diagram 10–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
THS 710 & THS 720 Service Manual
iii
Contents
List of Tables
Table 1–1: Oscilloscope specifications 1–1. . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–2: DMM specifications 1–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–3: General specifications 1–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 5–1: Summary of oscilloscope adjustment steps 5–5. . . . . . . . . . . .
Table 5–2: Summary of meter adjustment steps 5–8. . . . . . . . . . . . . . . . .
Table 6–1: Internal inspection check list 6–3. . . . . . . . . . . . . . . . . . . . . . .
Table 6–2: Removal and installation procedures 6–6. . . . . . . . . . . . . . . . .
Table 7–1: TekScope instrument options 7–1. . . . . . . . . . . . . . . . . . . . . . .
Table 10–1: Replaceable standard accessories 10–6. . . . . . . . . . . . . . . . . . .
iv
THS 710 & THS 720 Service Manual
General Safety Summary
Review the following safety precautions to avoid injury and prevent damage to
this product or any products connected to it.
Only qualified personnel should perform service procedures.
Injury Precautions
Avoid Electric Overload
Avoid Electric Shock
Do Not Operate Without
Covers
Do Not Operate in
To avoid injury or fire hazard, do not apply a voltage to any input, including the
common inputs, that varies from ground by more than the maximum rating for
that input.
To avoid injury or loss of life, do not connect or disconnect probes or test leads
while they are connected to a voltage source.
To avoid electric shock or fire hazard, do not operate this product with covers or
panels removed.
To avoid electric shock, do not operate this product in wet or damp conditions.
Wet/Damp Conditions
Do Not Operate in
Explosive Atmosphere
To avoid injury or fire hazard, do not operate this product in an explosive
atmosphere.
Product Damage Precautions
Use Proper Power Source
Do not operate this product from a power source that applies more than the
voltage specified.
Do Not Operate With
Suspected Failures
THS 710 & THS 720 Service Manual
If you suspect there is damage to this product, have it inspected by qualified
service personnel.
v
General Safety Summary
Safety Terms and Symbols
Terms in This Manual
Terms on the Product
These terms may appear in this manual:
WARNING. Warning statements identify conditions or practices that could result
in injury or loss of life.
CAUTION. Caution statements identify conditions or practices that could result in
damage to this product or other property.
These terms may appear on the product:
DANGER indicates an injury hazard immediately accessible as you read the
marking.
WARNING indicates an injury hazard not immediately accessible as you read the
marking.
CAUTION indicates a hazard to property including the product.
Symbols on the Product
The following symbols may appear on the product:
DANGER
High Voltage
Certifications and Compliances
CSA Certified AC Adapter
Compliances
vi
CSA Certification includes the AC adapters appropriate for use in the North
America power network. All other AC adapters supplied are approved for the
country of use.
Consult the product specifications for Installation Category, Pollution Degree,
and Safety Class.
Protective Ground
(Earth) T erminal
ATTENTION
Refer to Manual
Double
Insulated
THS 710 & THS 720 Service Manual
Service Safety Summary
Only qualified personnel should perform service procedures. Read this Service
Safety Summary and the General Safety Summary before performing any service
procedures.
Do Not Service Alone
Use Care When Servicing
With Power On
Do not perform internal service or adjustments of this product unless another
person capable of rendering first aid and resuscitation is present.
Dangerous voltages or currents may exist in this product. Disconnect power,
remove battery (if applicable), and disconnect test leads before removing
protective panels, soldering, or replacing components.
To avoid electric shock, do not touch exposed connections.
THS 710 & THS 720 Service Manual
vii
Service Safety Summary
viii
THS 710 & THS 720 Service Manual
Preface
Related Manuals
This is the Service Manual for the THS 700 Series TekScope instruments. This
manual provides information to troubleshoot and repair the instrument to the
module level.
Additional documentation for the instrument is contained in the related manuals
listed below.
User Manual
Language
English 070-9247-XX 070-9257-XX 070-9245-XX
French 070-9248-XX 070-9275-XX
German 070-9249-XX 070-9276-XX
Italian 070-9250-XX 070-9277-XX
Korean 070-9251-XX 070-9278-XX
Portuguese 070-9252-XX 070-9279-XX
Spanish 070-9253-XX 070-9280-XX
Simple Chinese 070-9254-XX 070-9281-XX
Standard
Chinese
Japanese 070-9258-XX
Part Number
070-9255-XX 070-9256-XX
Reference
Part Number
Programmer Manual
Part Number
THS 710 & THS 720 Service Manual
ix
Preface
Conventions
In the Performance Verification, Adjustments, and Maintenance chapters of this
manual, TekScope instrument setups are shown in tables similar to the one
shown below.
The header of each table contains icons that represent the controls and menu
items used to set up the instrument. To make a specific setup, read the table from
left to right and then from top to bottom as shown below. The table contains the
symbol “—” if no action is required.
1. Choose scope
mode or meter
mode.
2. Press this button on the front
panel.
3. Press this
bezel button.
6. 7. —
8. 9. 10.
4. Press the
bezel button
again until this
selection is highlighted.
5. Use the
+
the value for a
parameter.
/– rocker to set
x
THS 710 & THS 720 Service Manual
Specifications
Single Sequence
oltage
ommo
t
N
This chapter contains the oscilloscope, DMM, and general specifications for the
THS 710 and THS 720 TekScope instruments. All specifications are guaranteed
unless noted “typical.” Specifications that are marked with the n symbol are
checked in the chapter Performance Verification.
All specifications apply to both the THS 710 and THS 720 unless noted
otherwise. All specifications assume horizontal MAG is off, unless noted
otherwise. To meet specifications, two conditions must first be met:
H The TekScope instrument must have been operating continuously for ten
minutes within the operating temperature range specified.
H You must perform the Compensate Signal Path operation, accessible through
the utility menu, if the ambient temperature changes by more than 5° C.
T able 1–1: Oscilloscope specifications
Acquisition
Acquisition Modes Sample (Normal), Peak detect, Envelope, and Average
Acquisition Rate,
typical
Inputs
Input Coupling DC, AC, or GND
Input Impedance,
DC Coupled
Maximum V
Between Signal and
C
n at Inpu
BNC
Maximum Voltage
Between Common
and Earth Ground
at BNC
Up to 25 waveforms per second (2 channels, sample acquisition mode,
MAG on, no measurements)
Acquisition Mode Acquisition Stops After
Sample, Peak Detect Single acquisition, one or two
channels simultaneously
Average, Envelope N acquisitions, one or two chan-
nels simultaneously, N is settable
from 2 to 256 or ∞
1 M ±1% in parallel with 25 pF ±2 pF
Overvoltage Category Maximum Voltage
CA T II Environment 300 V
CA T III Environment
For steady-state sinusoidal waveforms, derate at 20 dB/decade above
100 kHz to 13 V
Category description on page 1–10.
30 V
RMS
, 42.4 V
at 3 MHz and above. Also, refer to Overvoltage
pk
pk
150 V
RMS
RMS
THS 710 & THS 720 Service Manual
1–1
Specifications
ple
Pe
Detect or
ve-
lope
ise Time at BN
typical
T able 1–1: Oscilloscope specifications (Cont.)
Inputs
Channel-to-Channel
Common Mode
Rejection, typical
Channel-to-Channel
Crosstalk, typical
Common to Chassis
Capacitance, typical
Vertical
Number of Channels 2
Digitizers 8 bit resolution, separate digitizers for each channel sample
VOL TS/DIV Range 5 mV/div to 50 V/div at input BNC
Polarity Normal and Invert
Position Range ±10 divisions
n Analog Bandwidth
at BNC, DC Cou
(at 5 mV/div, typical)
ak
Bandwidth,
typical
En
100:1 at frequencies ≤50 MHz, measured on MATH Ch1 – Ch2
waveform, with test signal applied between signal and common of both
channels, and with the same VOLTS/DIV and coupling settings on each
channel
≥100:1 at 50 MHz, measured on one channel, with test signal applied
between signal and common of the other channel, and with the same
VOL TS/DIV and coupling settings on each channel
65 pF
simultaneously
THS 710 THS 720
d
60 MHz at input BNC
THS 710 THS 720
50 MHz (1 ms/div or slower)
100 MHz at input BNC
(90 MHz above 35° C)
75 MHz (1 ms/div or slower)
1–2
Analog Bandwidth
Limit, typical
Lower Frequency
Limit, AC Coupled,
typical
R
Peak Detect or Envelope Pulse Response,
typical
DC Gain Accuracy ±2% for Sample or Average acquisition mode
Position Accuracy ±[0.4% × |(position × volts/div)| + (0.1 div × volts/div)]
C,
Selectable between 20 MHz or full
≤10 Hz at BNC, reduced by a factor of ten when using a 10X passive
probe
THS 710 THS 720
5.8 ns 3.5 ns
Captures 50% or greater amplitude of pulses ≥ 8 ns wide (≥ 20 ns wide
at 500 ns/div)
THS 710 & THS 720 Service Manual
T able 1–1: Oscilloscope specifications (Cont.)
rement
Accuracy, Average
Sample
e
S
e
sitivity
ype
sitivity
ype
typical
Vertical
n DC Measu
Acquisition Mode
DC Measurement
Accuracy , Sample
Acq. Mode, typical
Horizontal
Rate Rang
Record Length 2500 samples for each channel
EC/DIV Rang
(including MAG)
n Sample Rate and
Delay Time Accuracy
Delay Time Range Zero to 50 s
Trigger
n Trigger Sen
Edge Trigger T
Trigger Sen
Edge Trigger T
Trigger Level Range ±4 divisions from center of screen
Trigger Level
Accuracy , typical
SET LEVEL TO 50%,
typical
Width Range, Pulse
Trigger T ype, typical
Measurement Type Accuracy
Average of ≥16 waveforms
Delta volts between any two
averages of ≥16 waveforms
acquired under same setup and
ambient conditions
±[2% × |reading + (position × volts/div)| + (0.15 div × volts/div) +
0.6 mV]
THS 710 THS 720
5 S/s to 250 MS/s, in a 1.25, 2.5,
5 sequence
THS 710 THS 720
10 ns/div to 50 s/div
±200 ppm over any ≥1 ms time interval
,
Coupling Sensitivity
DC 0.35 div from DC to 50 MHz,
,
Coupling Sensitivity
,
NOISE REJ 3.5 times the DC-coupled limits
HF REJ 1.5 times the DC-coupled limit
LF REJ 1.5 times the DC-coupled limits
±0.2 divisions, for signals having rise and fall times ≥20 ns
Operates with input signals ≥50 Hz
99 ns to 1 s, with resolution of 33 ns or approximately 1% of setting
(whichever is greater)
Specifications
±[2% × |reading +
(position × volts/div)| +
(0.1 div × volts/div)]
±[2% × |reading| +
(0.05 div × volts/div)]
5 S/s to 500 MS/s, in a 1.25, 2.5,
5 sequence
5 ns/div to 50 s/div
increasing to 1 div at 100 MHz
from DC to 30 kHz, attenuates
signals above 30 kHz
for frequencies above 1 kHz,
attenuates signals below 1 kHz
THS 710 & THS 720 Service Manual
1–3
Specifications
Si
Formats
ype
Analo
D
ple
oltage
Probe Tip
erence Le
T able 1–1: Oscilloscope specifications (Cont.)
Trigger
Width Tolerance
Range, Pulse Trigger
Type, typical
Sensitivity, Video
Trigger T ype, typical
gnal
and
Field Rates, Video
Trigger T
Holdoff Range 495 ns to 10 s
Measurements
Cursors Voltage difference between cursors (DV)
Automated
Measurements
With P6113B Probe
g Bandwidth,
C Cou
d
Probe Attenuation 10X
Maximum V
Between
and Ref
Maximum Voltage
Between Reference
Lead and Earth
Ground Using
P61 13B Probe
5%, 10%, 15%, or 20%
Composite video signal with negative sync pulse amplitude from 0.6
to 2.5 divisions
Broadcast systems Supports NTSC, PAL, and
Interlaced Field 1 or field 2
Non-interlaced Any field or any line
Line Rates 15 kHz to 65 kHz, in five ranges
Time difference between cursors (DT)
Reciprocal of DT in Hertz (1/DT)
Amplitude, Burst Width, Cycle Mean, Cycle RMS, Fall Time,
Frequency, High, Low, Max, Mean, Min, Negative Duty Cycle, Negative
Overshoot, Negative Width, Pk – Pk, Period, Positive Duty Cycle,
Positive Overshoot, Positive Width, Rise Time, and RMS
THS 710 THS 720
60 MHz
Overvoltage Category Maximum Voltage
CA T II Environment 300 V
ad
CA T III Environment
For steady-state sinusoidal waveforms, derate at 20 dB/decade above
100 kHz to 13 V
at 3 MHz and above. Also, refer to Overvoltage
pk
Category description on page 1–10.
30 V
RMS
, 42.4 V
pk
SECAM
100 MHz
RMS
150 V
RMS
1–4
THS 710 & THS 720 Service Manual
T able 1–1: Oscilloscope specifications (Cont.)
Analo
D
ple
oltage
Probe Tip
erence Le
oltage
Probe Tip
erence Le
oltage
erence
With P5102 Probe
g Bandwidth,
C Cou
d
Probe Attenuation 10X
Maximum V
Between
and Ref
DC Coupled
Maximum V
Between
and Ref
AC Coupled
Maximum V
Between Ref
Lead and Earth
Ground
Single Channel Common Lead Feedthrough with P5102
Probe, typical
THS 710 THS 720
60 MHz
Overvoltage Category Maximum Voltage
CA T II Environment 1000 V
ad,
CA T III Environment
Overvoltage Category Maximum Voltage
CA T II Environment ±1000 V
ad,
CA T III Environment
Overvoltage Category Maximum Voltage
CA T II Environment 600 V
CA T III Environment
1000:1 from DC to 100 kHz, measured on either channel, with probe tip
and reference lead connected together, and with test signal applied
between tip/reference and earth ground
A 3000 V/ms slew rate results in ≤0.5 division feedthrough, measured
on either channel, with probe tip and reference lead connected
together, and with test signal applied between tip/reference and earth
ground
100 MHz
600 V
RMS
±600 V
RMS
300 V
RMS
Specifications
RMS
DC
DC
THS 710 & THS 720 Service Manual
1–5
Specifications
oltage
ts
oltage
or
esolutio
esolutio
T able 1–2: DMM specifications
General
Resolution 33⁄4 digit, 4000 count full scale reading except as noted
Input Resistance, AC
or DC Voltage
Input Capacitance,
AC or DC Voltage,
typical
Maximum V
Between DMM and
COM Inpu
Maximum V
Between DMM
COM Input and Earth
Ground
DC Voltage
Ranges and
R
n
n Accuracy ±(0.5% of reading + 5 counts)
Normal Mode
Rejection, typical
Common Mode
Rejection, typical
AC Voltage
Conversion Type AC conversions are true RMS. The AC measurement is based on the
10 M ±10%
≤100 pF
Overvoltage Category Maximum Voltage
CA T II Environment 600 V
CA T III Environment 300 V
RMS
RMS
Overvoltage Category Maximum Voltage
CA T II Environment 600 V
CA T III Environment
300 V
RMS
RMS
Range Resolution
400.0 mV
0.1 mV
4.000 V 1 mV
40.00 V 10 mV
400.0 V 100 mV
880 V 1 V
Rejects AC signals by >60 dB at 50 Hz or 60 Hz (user selectable)
Rejects AC signals by >100 dB at 50 Hz or 60 Hz (user selectable)
AC and DC components of the signal as shown below:
1–6
AC Measurement = RMS(AC+DC) – DC
Ranges and
R
n
Range Resolution
400.0 mV
0.1 mV
4.000 V 1 mV
40.00 V 10 mV
400.0 V 100 mV
640 V 1 V
THS 710 & THS 720 Service Manual
T able 1–2: DMM specifications (Cont.)
Accuracy
esolutio
Accuracy, typical
oltage for Full
Scale Resistance
rement, typical
Ope
ircuit Voltage
typical
AC Voltage
n
Bandwidth, typical ≥5 kHz for all ranges
Common Mode
Rejection, typical
/Resistance
Ranges and
R
Bias V
Measu
n
n C
Input Waveform Maximum Error
Sinusoidal waveforms ±(2% of reading + 5 counts)
Nonsinusoidal waveforms with
crest factor up to 3
Rejects AC signals by >60 dB at DC, 50 Hz, and 60 Hz
Range Resolution
400.0
4.000 k 1
40.00 k 10
400.0 k 100
4.000 M 1 k
40.00 M 10 k
Range Maximum Error
All ranges except 40 M ±(0.5% of reading + 2 counts)
40 M ±(2% of reading + 5 counts) for
Range Full Scale Bias Voltage
400.0 350 mV
4.000 k 200 mV
40.00 k 350 mV
400.0 k 350 mV
4.000 M 400 mV
40.00 M 1.10 V
,
Range Open Circuit Voltage
400.0 4.8 V
All other ranges ≤1.2 V
Specifications
±(4% of reading + 5 counts)
0.1
≤60% relative humidity
THS 710 & THS 720 Service Manual
1–7
Specifications
J-45 Connector
Pinout
T able 1–2: DMM specifications (Cont.)
Continuity Check
Indication An audible tone is generated when measured resistance is below 50 ,
typical
Open Circuit Voltage,
typical
Test Current, typical 1 mA
Diode Check
Range Zero to 2 V, measures forward voltage drop of semiconductor junction
Voltage Accuracy,
typical
Open Circuit Voltage,
typical
Test Current, typical 1 mA
Data Logger
Horizontal Scale
Range
4.8 V
±25%
4.8 V
24 hours/div to 30 s/div (4 minutes to 8 days, full scale)
T able 1–3: General specifications
Display
Display Type 4.7 in (120 mm) diagonal liquid crystal
Display Resolution 320 horizontal by 240 vertical pixels
Display Contrast Adjustable, temperature compensated
Backlight Intensity,
typical
RS-232 Interface
Device Type DTE
R
2
35 cd/m
Pin Number Signal
1 DCD
2 DSR
3 DTR
4 GND
5 RXD
6 TXD
7 CTS
8 RTS
1–8
THS 710 & THS 720 Service Manual
Specifications
ttery
emperature
ity
Altitude
T able 1–3: General specifications (Cont.)
Probe Compensator Output
Output Voltage,
typical
Frequency, typical 1.2 kHz
Power Source
Battery Replaceable Ni-Cd battery pack
Battery Life, typical Approximately two hours of continuous use from a full charge
Low Battery Indica-
tion, typical
Battery Saver Standby Time-out and Backlight Time-out extend battery life. Time-out
Ba
Charging
Time, typical
External Power 12 VDC nominal, center positive; Operates with input from 10 VDC to
5.0 V into ≥1 M load
Low battery message first appears approximately ten minutes before
the instrument powers off automatically
ranges from 1 minute to 15 minutes, or off.
With T ekScope instrument operat-
ing
With T ekScope instrument turned
off
In external charger 1.5 hours
15 VDC
20 hours
20 hours
The DC INPUT disconnects itself automatically if >15 VDC is applied.
If this occurs, disconnect the overvoltage and then reconnect to a
voltage in the proper range.
Memory Retention,
typical
Fuse This instrument has no user-replaceable fuses
Environmental
T
Humid
All memory is retained indefinitely with battery removed and without
external power applied.
Operating –10° C to +50° C
Nonoperating –20° C to +60° C
+40° C or below ≤95% relative humidity
+41° C to +50° C ≤75% relative humudity
Operating 2,000 m
Nonoperating 15,000 m
THS 710 & THS 720 Service Manual
1–9
Specifications
ibratio
Size
t
Overvoltage
ory
T able 1–3: General specifications (Cont.)
Environmental
Random V
Drop Resistance,
typical
Mechanical
Weigh
Certifications and Compliances
Certifications Listed UL31 11-1 and CAN/CSA-C22.2 No. 1010.1-92, complies with
n Operating 2.66 g
Nonoperating 3.48 g
Survives a 30 in drop onto concrete with only cosmetic damage
Height 8.53 in (217 mm)
Width 6.95 in (177 mm)
Depth 2.00 in (50.8 mm)
With battery installed 3.2 lbs (1.5 kg)
With all standard accessories in
soft carry case
When packaged for domestic
shipment
EN61010-1
Categ
Category Examples
CA T III A typical CAT III environment is
CA T II A typical CAT II environment is
from 5 Hz to 500 Hz,
RMS
10 minutes on each axis
from 5 Hz to 500 Hz,
RMS
10 minutes on each axis
7.5 lbs (3.4 kg)
9.0 lbs (4.1 kg)
the power distribution system
within a building or factory. These
environments are somewhat
protected from lightning strikes,
but susceptible to switching
transients and other disturbances
that may generate high voltage
impulses.
the 120/240 V distribution system
within a lab or office. These
environments are fairly well
protected from external high
voltage disturbances.
1–10
THS 710 & THS 720 Service Manual
Specifications
T able 1–3: General specifications (Cont.)
Certifications and Compliances
EC Declaration of
Conformity
FCC Compliance Emissions comply with FCC Code of Federal Regulations 47 CFR, Part
Adjustment Interval
The recommended adjustment interval is one year
Meets the intent of Directive 89/336/EEC for Electromagnetic
Compatibility and Low-Voltage Directive 73/23/ECC for Product Safety.
Compliance was demonstrated to the following specifications as listed
in the official Journal of the European Communities:
EN 55011 Class A: Radiated and Conducted Emissions
13
EN 50081–1 Emissions:
EN 60555–2 Power Harmonics
EN 50082–1 Immunity:
IEC 801–2 Electrostatic Discharge
IEC 801–3 RF Radiated
2
IEC 801–4 Fast Transients
IEC 801–5 Surge
3
EN 61010–1 Safety
1
Tektronix-supplied ferrite bead required on instrument end of
RS-232 cable
2
Performance criteria: ≤ 5.0 div increase in peak to peak noise
(Sample acquisition mode, full bandwidth); otherwise, ≤ 1.0 div
increase in peak to peak noise
3
Applies to instrument operating with Tektronix-supplied AC
adapter
15, Subpart B, Class A
THS 710 & THS 720 Service Manual
1–11
Specifications
1–12
THS 710 & THS 720 Service Manual
Operator Information
This chapter provides a quick overview of the following topics:
H Internal and external power sources
H Understanding the front panel
H Connecting and using the probes
For more detailed information about TekScope instrument operation, refer to the
THS 710 & THS 720 User Manual.
Internal and External Power Sources
You can power the TekScope instrument from the internal battery pack or from
the AC adapter (both are standard accessories).
Using the Battery Pack
Before using the battery for the first time, it must be charged. You can use
external power to charge the battery pack while it is in the TekScope instrument.
Or you can charge the battery pack with the optional external battery charger.
Typical battery charging times are listed below.
Configuration Typical Charging Time
Battery pack in TekScope instrument 20 hours
Battery pack in external charger 1.5 hours
You can remove and replace the battery pack without losing any saved
information. The current setup, saved setups, saved waveforms, and saved data
are stored in nonvolatile memory that does not depend on battery power.
CAUTION. To prevent loss of saved information, set the ON/STBY switch to STBY
before removing the battery pack.
THS 710 & THS 720 Service Manual
2–1
Operator Information
Battery pack
Using External Power
For benchtop operation, you can use external power. Attach the AC adapter
as shown below.
The DC INPUT disconnects itself if an overvoltage is applied. If this
occurs, disconnect and then reconnect the AC adapter to resume operation
from external power.
External power
to DC INPUT
2–2
CAUTION. To avoid overheating, do not connect external power while the
instrument is in a confined space, such as in the soft case.
THS 710 & THS 720 Service Manual
Loading...