This document supports firmware version 3.00
and above for TDS3000B Series instruments only.
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.
Tektronix 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 privilege s reserved.
Printed in the U.S.A.
Tektronix, Inc., P.O. Box 500, Beaverton, OR 97077
TEKTRONIX, TEK, TEKPROBE, and Tek Secure are registered trademarks of Tektronix, Inc.
DPX, WaveAlert, OpenChoice, and e*Scope are trademarks of Tektronix, Inc.
Table of Contents
Specifications
Operating Information
General Safety Summaryvii...................................
Service Safety Summaryxi....................................
Figure 10--3: Exploded view, main board and disk drive10--8.........
Figure 10--4: Exploded view, circuit board assembly and fan10--10......
Figure 10--5: Exploded view, rear case half10--13.....................
iv
TDS3000B Series Service Manual
List of Tables
Table of Contents
T able 1--1: Specifications1--1...................................
T able 6--1: Internal inspection check list6--3......................
Table 6--2: Removal and installation procedures6--6................
Table 7--1: TDS3000B Series options7--1.........................
TDS3000B Series Service Manual
v
Table of Contents
vi
TDS3000B Series 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. To avoid potential hazards, use this
product only as specified.
To Avoid Fire or Personal
Injury
Use Proper Power Cord. Use only the power cord specified for this product and
certified for the country of use.
Connect and Disconnect Properly. Connect the probe output to the measurement
instrument before connecting the probe to the circuit under test. Disconnect the
probe input and the probe ground from the circuit under test before disconnecting
the probe from the measurement instrument.
Ground the Product. When operating with AC power, this product is grounded
through the grounding conductor of the power cord. To avoid electric shock, the
grounding conductor must be connected to earth ground. Before making
connections to the input or output terminals of the product, ensure that the
product is properly grounded.
When operating with battery power, this product must still be grounded. To
prevent electric shock, always connect a grounding wire between the ground
terminal on the rear panel and earth ground.
Observe All Terminal Ratings. T o avoid fire or shock hazard, observe all ratings
and markings on the product. Consult the product manual for further ratings
information before making connections to the product.
Connect the ground lead of the probe to earth ground only.
TDS3000B Series Service Manual
vii
General Safety Summary
Replace Batteries Properly. Replace batteries only with the proper type and rating
specified.
Recharge Batteries Properly. Recharge batteries for the recommended charge
cycle only.
Do Not Operate Without Covers. Do not operate this product with covers or panels
removed.
Avoid Exposed Circuitry. Do not touch exposed connections and components
when power is present.
Do Not Operate With Suspected Failures. If you suspect there is damage to this
product, have it inspected by qualified service personnel.
Do Not Operate in Wet/Damp Conditions.
Do Not Operate in an Explosive Atmosphere.
Keep Product Surfaces Clean and Dry.
Provide Proper Ventilation. Refer to the manual’s installation instructions for
details on installing the product so it has proper ventilation.
Safety Terms and Symbols
Terms in this Manual. 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.
Terms on the Product. 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.
viii
TDS3000B Series Service Manual
General Safety Summary
Symbols on the Product. These symbols may appear on the product:
WARNING
High Voltage
Ethernet PortChassis Ground
Preventing Electrostatic Damage
CAUTION. Electrostatic discharge (ESD) can damage components in the
oscilloscope and its accessories. To prevent ESD, observe these precautions
when directed to do so.
Use a Ground Strap. Wear a grounded antistatic wrist strap to discharge the static
voltage from your body while installing or removing sensitive components.
Use a Safe Work Area. Do not use any devices capable of generating or holding a
static charge in the work area where you install or remove sensitive components.
Avoid handling sensitive components in areas that have a floor or benchtop
surface capable of generating a static charge.
Handle Components Carefully. Do not slide sensitive components over any
surface. Do not touch exposed connector pins. Handle sensitive components as
little as possible.
Protective Ground
(Earth) Terminal
CAUTION
Refer to Manual
Battery
Information
Transport and Store Carefully. Transport and store sensitive components in a
static-protected bag or container.
TDS3000B Series Service Manual
ix
General Safety Summary
Product End-of-Life
Handling
Transportation and
Lithium Ion Batteries
Observe the following guidelines when recycling an instrument or component:
Mercury Notification. This oscilloscope uses an LCD backlight lamp that contains
mercury. Disposal may be regulated due to environmental considerations. P lease
contact your local authorities or the Electronics Industries Alliance
(www.eiae.org) for disposal or recycling information.
Battery Recycling. This product may contain a Nickel Cadmium (NiCd) or
lithium ion (Li-ion) rechargeable battery, which must be recycled or disposed of
properly. Please properly dispose or recycle the battery according to local
government regulations.
The TDS3BATB lithium ion rechargeable battery pack contains less than 8
grams of lithium, with individual cells containing less than 1.5 grams of lithium,
as measured by International Civil Aviation Organization (ICAO) standards.
Consult your air carrier for applicability and determination of any special lithium
ion battery transportation requirements.
x
TDS3000B Series 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. Do not perform internal service or adjustments of this
product unless another person capable of rendering first aid and resuscitation is
present.
Disconnect Power. To avoid electric shock, switch off the instrument power, then
disconnect the power cord from the mains power.
Use Care When Servicing With Power On. 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.
TDS3000B Series Service Manual
xi
Service Safety Summary
xii
TDS3000B Series Service Manual
Preface
This Service manual provides information to troubleshoot, disassemble, and
repair the following TDS3000B Series Digital Phosphor Oscilloscopes instrument to the module level:
HTDS3012B
HTDS3014B
HTDS3024B
HTDS3032B
HTDS3034B
HTDS3044B
HTDS3052B
HTDS3054B
HTDS3064B
TDS3000B Series Service Manual
xiii
Preface
Contacting Tektronix
Phone1-800-833-9200*
AddressTektronix, Inc.
Department or name (if known)
14200 SW Karl Braun Drive
P.O. Box 500
Beaverton, OR 97077
USA
Web sitewww.tektronix.com
Sales support1-800-833-9200, select option 1*
Service support1-800-833-9200, select option 2*
Technical supportwww.tektronix.com/support
1-800-833-9200, select option 3*
6:00 a.m. -- 5:00 p.m. Pacific Standard time
*
This phone number is toll free in North America. After office hours, please leave a voice mail
message.
Outside North America, contact a Tektronix sales office or distributor; see the Tektronix web
site for a list of offices.
xiv
TDS3000B Series Service Manual
Specifications
Specifications
g
q
This appendix contains specifications for the TDS3000B Series oscilloscopes.
All specifications are guaranteed unless noted as “typical.” T ypical specifications
are provided for your convenience but are not guaranteed. Specifications that are
marked with the n symbol are checked in Performance Verification.
All specifications apply to all TDS3000B models unless noted otherwise.
To meet specifications, two conditions must first be met:
HThe oscilloscope must have been operating continuously for twenty minutes
within the operating temperature range specified.
HYou must perform the Compensate Signal Path operation described on
page 2--22 prior to evaluating specifications. If the operating temperature
changes by more than 10 °C, you must perform the Compensate Signal Path
operation again.
Table 1- 1: Specifications
Acquisition
Acquisition modesSample (Normal), Peak detect, Envelope, and Average
Single SequenceAcquisition modeAcquisition stops after
Sample, Peak DetectOne acquisition, all channels
simultaneously
Average, EnvelopeN acquisitions, all channels
simultaneously, N is settable from
2to256(or∞ for Envelope)
TDS3000B Series Service Manual
1- 1
Specifications
g
,yp
Table 1- 1: Specifications (cont.)
Inputs
Input couplingDC, AC, or GND
Channel input remains terminated when using GND coupling.
Input impedance,
DC coupled
Maximum voltage atOvervoltage categoryMaximum voltage
input BNC (1 MΩ)
Maximum voltage at
input BNC (50 Ω)
Maximum floating
voltage
Channel-to-channel
crosstalk, typical
Differential delay,
typical
1MΩ ±1% in parallel with 13 pF ±2 pF, TekProbe compatible
50 Ω ±1%; VSWR ≤ 1.5:1 from DC to 500 MHz, typical
CAT I Environment
150 V
RMS
(400 Vpk)
(refer to page 1--11)
CAT II Environment
100 V
RMS
(400 Vpk)
(refer to page 1--11)
For steady-state sinusoidal waveforms, derate at 20 dB/decade above
200 kHz to 13 V
5V
with peaks ≤±30 V
RMS
at 3 MHz and above.
pk
0 V from chassis (BNC) ground to earth ground, or
30 V
>30 V
(42 Vpk) only under these conditions: no signal voltages
RMS
(>42 Vpk), all common leads connected to the same voltage,
RMS
no grounded peripherals attached
Measured on one channel, with test signal applied to another channel,
and with the same scale and coupling settings on each channel
Frequency rangeCrosstalk
≤ 100 MHz≥ 100:1
≤ 200 MHz≥ 50:1
≤ 300 MHz≥ 50:1
≤ 400 MHz≥ 30:1
≤ 500 MHz≥ 30:1
≤ 600 MHz≥ 30:1
100 ps between any two channels with the same scale and coupling
settings
1- 2
TDS3000B Series Service Manual
Specifications
g
,
c
a
Table 1- 1: Specifications (cont.)
Vertical
Number of channelsTDS30x2BTDS30x4B
2 plus external trigger input4 plus external trigger input
Digitizers9-bit resolution, separate digitizers for each channel sample
simultaneously
SCALE Range1MΩ50 Ω
(at BNC)
Fine SCALEAdjustable with ≥ 1% resolut ion
PolarityNormal and Invert
Position range±5 divisions
n Analog
bandwidth, 50 Ω
(also typical at 1 MΩ
with standard probe)
Calculated rise
time, typi
l
1mV/divto10V/div1mV/div to 1 V/div
Bandwidth limit set to Full, operating ambient ≤30 °C, derate 1%/°C
above 30 °C
Scale range
5mV/divto
1V/div
2mV/divto
4.98 mV/div
1mV/divto
1.99 mV/div
TDS301xB100 MHz100 MHz90 MHz
TDS302xB200 MHz100 MHz90 MHz
TDS303xB300 MHz250 MHz150 MHz
TDS304xB400 MHz250 MHz150 MHz
TDS305xB500 MHz300 MHz175 MHz
TDS306xB600 MHz
1
300 MHz175 MHz
TDS301xB3.5 ns
TDS302xB
1.75 ns
TDS3000B Series Service Manual
TDS303xB1.2 ns
TDS304xB0.9 ns
TDS305xB0.7 ns
TDS306xB0.6 ns
1
500 MHz at 5 mV/div; 600 MHz at 10 mV/div and greater.
30 hours in the oscilloscope, 5 hours using the optional external
charger TDS3CHG
Line fuseInternal, not user replaceable
Environmental
TemperatureOperating range (no disk installed): +5 °Cto+50°C
RMS
to 250 V
, continuous range
RMS
Nonoperating range (no disk installed): --20 °Cto+60°C
Typical operating range for floppy disks: +10 °Cto+50°C
HumidityOperating range (no disk installed): 20% to 80% RH below 32 °C,
derate upper limit to 21% RH at 50 °C
Nonoperating range (no disk installed): 5% to 90% RH below 41 °C,
derate upper limit to 30% RH at 60 °C
Typical operating range for floppy disks: 20% to 80% RH below 32 °C,
derate upper limit to 21% RH at 50 °C
Pollution DegreePollution Degree 2: Typical home or office environment.
1- 8
TDS3000B Series Service Manual
Table 1- 1: Specifications (cont.)
Environmental
AltitudeOperating limit: 3000 m
Nonoperating limit: 15,000 m
Random vibrationOperating: 0.31 g
Nonoperating: 2.46 g
axis
Drop resistance,
typical
Survives a 152 mm (6 in) drop onto concrete with only cosmetic
damage
Mechanical
SizeHeight: 176 mm (6.9 in), 229 mm (9.0 in) including handle
Width: 375 mm (14.75 in)
Depth: 149 mm (5.9 in)
WeightOscilloscope only: 3.2 kg (7.0 lbs)
from 5 Hz to 500 Hz, 10 minutes on each axis
RMS
from 5 Hz to 500 Hz, 10 minutes on each
RMS
Specifications
With accessories and carry case: 4.1 kg (9.0 lbs)
When packaged for domestic shipment: 5.5 kg (12.0 lbs)
Optional TDS3BATB battery pack: 0.85 kg (1.9 lbs)
TDS3000B Series Service Manual
1- 9
Specifications
Table 1- 1: Specifications (cont.)
EMC certifications and compliances
EMC Compliance:
European Union
1
Emissions that exceed the levels required by this standard may occur when this equipment
is connected to a test object.
2
To ensure compliance to the standards listed above, attach only high quality shielded
cables to this instrument. High quality shielded cables typically are braid and foil types that
have low impedance connections to shielded connectors at both ends.
3
The increase in trace noise while subjected to a test field (3 V/m over the frequency range
80 MHz to 1 GHz, with 80% amplitude modulation at 1 kHz) is not to exceed 8 major
divisions peak-to-peak. Ambient conducted fields may induce triggering when the trigger
threshold is offset less than 4 major divisions from ground reference.
4
The increase in trace noise while subjected to a test field (3 V/m over the frequency range
150 kHz to 80 MHz, with 80% amplitude modulation at 1 kHz) is not to exceed
2 major divisions peak-to-peak. Ambient conducted fields m ay induce triggering when the
trigger threshold is offset less than 1 major division from ground reference.
Meets the intent of Directive 89/336/EEC for Electromagnetic
Compatibility. Compliance was demonstrated to the following
specifications as listed in the Official Journal of the European
Communities:
EN 61326
EMC requirements for Class A electrical equipment for
measurement, control, and laboratory use
1,2
IEC 61000-4-2
Electrostatic discharge immunity (Performance criterion B)
IEC 61000-4-3
RF electromagnetic field immunity (Performance
criterion B)
3
IEC 61000-4-4
Electrical fast transient/burst immunity (Performance
criterion B)
IEC 61000-4-5
Power line surge immunity (Performance criterion B)
IEC 61000-4-6
Conducted RF immunity (Performance criterion B)
IEC 61000-4-11
Voltage dips and interruptions immunity (Performance
criterion B)
EN 61000-3-2
AC power line harmonic emissions
EN 61000-3-3
Voltage changes, fluctuations and flicker
4
1- 10
TDS3000B Series Service Manual
Specifications
Table 1- 1: Specifications (cont.)
EMC certifications and compliances
EMC Compliance:
Australia/New Zealand
EMC Compliance:
Russia
FCC Compliance:
U.S.A.
Safety certifications and compliances
EC Declaration of
Conformity -- Low
Voltage
(TDS3000B Series,
P3010, and P6139A)
(P3010 and P6139A)EN 61010-2-031:1995
Approvals
(TDS3000B Series,
P3010, and P6139A)
(P3010 and P6139A)EN 61010-2-031:1995 -- Particular requirements for hand-held probe
Installation/
Overvoltage Category
Descriptions
Meets the intent of Australian EMC Framework as demonstrated to the
following specification:
AS/NZS 2064.1/2
This product was certified by the GOST ministry of Russia to be in
compliance with all applicable EMC regulations.
Emissions comply with FCC Code of Federal Regulations 47, Part 15,
Subpart B, Class A Limits
Compliance was demonstrated to the following speci fication as listed in
the Official Journal of the European Communities:
Low Voltage Directive 73/23/EEC as ammended by 93/68/EEC
EN 61010-1/A2:1995
Safety requirements for electrical equipment for
measurement, control, and laboratory use
Particular requirements for hand-held probe assemblies
for electrical measurement and test equipment
UL3111-1 -- Standard for electrical measuring and test equipment
CAN/CSA C22.2 No. 1010.1 -- Safety requirements for electrical
equipment for measurement, control and laboratory use
assemblies for electrical measurement and test equipment
Terminals on this product may have different installation category
designations. The installation categories are: