Rigol DS1074B User manual

RIGOL
Service Guide
DS1000B Series Digital Oscilloscope
DS1074B, DS1104B, DS1204B
Dec. 2014
RIGOL Technologies, Inc.

RIGOL
DS1000B Service Guide I
Guaranty and Declaration
Copyright
© 2009 RIGOL Technologies, Inc. All Rights Reserved.
Trademark Information
RIGOL is a registered trademark of RIGOL Technologies, Inc.
Publication Number
SGA04106-1110
Notices
RIGOL products are covered by P.R.C. and foreign patents, issued and pending.
RIGOL reserves the right to modify or change parts of or all the specifications
and pricing policies at company’s sole decision.
Information in this publication replaces all previously corresponding material.
Information in this publication is subject to change without notice.
RIGOL shall not be liable for either incidental or consequential losses in
connection with the furnishing, use or performance of this manual as well as any
information contained.
Any part of this document is forbidden to be copied, photocopied or rearranged
without prior written approval of RIGOL.
Product Certification
RIGOL guarantees this product conforms to the national and industrial standards in
China as well as the ISO9001:2008 standard and the ISO14001:2004 standard. Other
international standard conformance certification is in progress.
Contact Us
If you have any problem or requirement when using our products or this manual,
please contact RIGOL.
E-mail: [e-mail]
Website: www.rigol.com

RIGOL
DS1000B Service Guide
II
General Safety Summary
Please review the following safety precautions carefully before putting the instrument
into operation so as to avoid any personal injury or damage to the instrument and any
product connected to it. To prevent potential hazards, please use the instrument only
specified by this manual.
Use Proper Power Cord.
Only the power cord designed for the instrument and authorized for use within the
local country could be used.
Ground the Instrument.
The instrument is grounded through the Protective Earth lead of the power cord. To
avoid electric shock, it is essential to connect the earth terminal of the power cord to
the Protective Earth terminal before connecting any inputs or outputs.
Connect the Probe Correctly.
If a probe is used, do not connect the ground lead to high voltage since it has isobaric
electric potential as the ground.
Observe All Terminal Ratings.
To avoid fire or shock hazard, observe all ratings and markers on the instrument and
check your manual for more information about ratings before connecting the
instrument.
Use Proper Overvoltage Protection.
Make sure that no overvoltage (such as that caused by a thunderstorm) can reach the
product, or else the operator might be exposed to the danger of electrical shock.
Do Not Operate Without Covers.
Do not operate the instrument with covers or panels removed.
Do Not Insert Anything Into the Holes of Fan.
Do not insert anything into the holes of the fan to avoid damaging the instrument.
Use Proper Fuse.
Please use the specified fuses.
Avoid Circuit or Wire Exposure.
Do not touch exposed junctions and components when the unit is powered.
Do Not Operate With Suspected Failures.
If you suspect damage occurs to the instrument, have it inspected by RIGOL
authorized personnel before further operations. Any maintenance, adjustment or

RIGOL
DS1000B Service Guide III
replacement especially to circuits or accessories must be performed by RIGOL
authorized personnel.
Keep Well Ventilation.
Inadequate ventilation may cause an increase of instrument temperature which would
cause damage to the device. So please keep the instrument well ventilated and
inspect the intake and fan regularly.
Do Not Operate in Wet Conditions.
In order to avoid short circuiting to the interior of the device or electric shock, please
do not operate the instrument in a humid environment.
Do Not Operate in an Explosive Atmosphere.
In order to avoid damage to the device or personal injuries, it is important to operate
the device away from an explosive atmosphere.
Keep Product Surfaces Clean and Dry.
To avoid the influence of dust and/or moisture in the air, please keep the surface of the
device clean and dry.
Electrostatic Prevention.
Operate the instrument in an electrostatic discharge protective environment to avoid
damage induced by static discharges. Always ground both the internal and external
conductors of cables to release static before making connections.
Proper Use of Battery.
If a battery is supplied, it must not be exposed to high temperature or in contact with
fire. Keep it out of the reach of children. Improper change of battery (note: lithium
battery) may cause explosion. Use RIGOL specified battery only.
Handling Safety.
Please handle with care during transportation to avoid damage to buttons, knob
interfaces and other parts on the panels.
The disturbance test of all the models meet the limit values of A in the
standard of EN 61326: 1997+A1+A2+A3, but can’t meet the limit values of
B.
Measurement Category
DS1000B series digital oscilloscope is intended to be used for measurements in
Measurement Category I.
Measurement Category Definitions
Measurement Category I is for measurements performed on circuits not directly
connected to MAINS. Examples are measurements on circuits not derived from MAINS,
and specially protected (internal) MAINS derived circuits. In the latter case, transient

RIGOL
DS1000B Service Guide
IV
stresses are variable; for that reason, the transient withstand capability of the
equipment is made known to the user.
WARNING
IEC Measurement Category I. The input terminals may be connected to circuit
terminal in IEC Category I installations for voltages up to 300 VAC. To avoid the
danger of electric shock, do not connect the inputs to circuit’s voltages above 300
VAC.
Transient overvoltage is also present on circuits that are isolated from mains.
DS1000B series digital oscilloscopes is designed to safely withstand occasional
transient overvoltage up to 1000Vpk. Do not use this equipment to measure circuits
where transient overvoltage could exceed this level.

RIGOL
DS1000B Service Guide V
Safety Terms and Symbols
Terms Used in this Manual. These terms may appear in this manual:
WARNING
Warning statements indicate conditions or practices that could result in
injury or loss of life.
CAUTION
Caution statements indicate conditions or practices that could result in
damage to this product or other property.
Terms Used on the Product. These terms may appear on the product:
DANGER
It calls attention to an operation, if not correctly performed, could
result in injury or hazard immediately.
WARNING
It calls attention to an operation, if not correctly performed, could
result in
potential injury or hazard.
CAUTION
It calls attention to an operation, if not correctly performed, could
result in damage to the product or other devices connected to the
product.
Symbols Used on the Product. These symbols may appear on the product:
Hazardous
Voltage
Safety
Warning
Protective
Earth
Terminal
Chassis
Ground
Test
Ground

RIGOL
DS1000B Service Guide
VI
Allgemeine Sicherheits Informationen
Überprüfen Sie diefolgenden Sicherheitshinweise
sorgfältigumPersonenschädenoderSchäden am Gerätundan damit verbundenen
weiteren Gerätenzu vermeiden. Zur Vermeidung vonGefahren, nutzen Sie bitte das
Gerät nur so, wiein diesem Handbuchangegeben.
Um Feuer oder Verletzungen zu vermeiden, verwenden Sie ein
ordnungsgemäßes Netzkabel.
Verwenden Sie für dieses Gerät nur das für ihr Land zugelassene und genehmigte
Netzkabel.
Erden des Gerätes.
Das Gerät ist durch den Schutzleiter im Netzkabel geerdet. Um Gefahren durch
elektrischen Schlag zu vermeiden, ist es unerlässlich, die Erdung durchzuführen. Erst
dann dürfen weitere Ein- oder Ausgänge verbunden werden.
Anschluss einesTastkopfes.
Die Erdungsklemmen der Sonden sindauf dem gleichen Spannungspegel des
Instruments geerdet. SchließenSie die Erdungsklemmen an keine hohe Spannung an.
Beachten Sie alle Anschlüsse.
Zur Vermeidung von Feuer oder Stromschlag, beachten Sie alle Bemerkungen und
Markierungen auf dem Instrument. Befolgen Sie die Bedienungsanleitung für weitere
Informationen, bevor Sie weitere Anschlüsse an das Instrument legen.
Verwenden Sie einen geeigneten Überspannungsschutz.
Stellen Sie sicher, daß keinerlei Überspannung (wie z.B. durch Gewitter verursacht)
das Gerät erreichen kann. Andernfallsbestehtfür den Anwender die
GefahreinesStromschlages.
Nicht ohne Abdeckung einschalten.
Betreiben Sie das Gerät nicht mit entfernten Gehäuse-Abdeckungen.
Betreiben Sie das Gerät nicht geöffnet.
Der Betrieb mit offenen oder entfernten Gehäuseteilen ist nicht zulässig. Nichts in
entsprechende Öffnungen stecken (Lüfter z.B.)
Passende Sicherung verwenden.
Setzen Sie nur die spezifikationsgemäßen Sicherungen ein.
Vermeiden Sie ungeschützte Verbindungen.
Berühren Sie keine unisolierten Verbindungen oder Baugruppen, während das Gerät in
Betrieb ist.

RIGOL
DS1000B Service Guide VII
Betreiben Sie das Gerät nicht im Fehlerfall.
Wenn Sie am Gerät einen Defekt vermuten, sorgen Sie dafür, bevor Sie das Gerät
wieder betreiben, dass eine Untersuchung durch RIGOL autorisiertem Personal
durchgeführt wird. Jedwede Wartung, Einstellarbeiten oder Austausch von Teilen am
Gerät, sowie am Zubehör dürfen nur von RIGOL autorisiertem Personal durchgeführt
werden.
Belüftung sicherstellen.
Unzureichende Belüftung kann zu Temperaturanstiegen und somit zu thermischen
Schäden am Gerät führen. Stellen Sie deswegen die Belüftung sicher und kontrollieren
regelmäßig Lüfter und Belüftungsöffnungen.
Nicht in feuchter Umgebung betreiben.
Zur Vermeidung von Kurzschluß im Geräteinneren und Stromschlag betreiben Sie das
Gerät bitte niemals in feuchter Umgebung.
Nicht in explosiver Atmosphäre betreiben.
Zur Vermeidung von Personen- und Sachschäden ist es unumgänglich, das Gerät
ausschließlich fernab jedweder explosiven Atmosphäre zu betreiben.
Geräteoberflächen sauber und trocken halten.
Um den Einfluß von Staub und Feuchtigkeit aus der Luft auszuschließen, halten Sie
bitte die Geräteoberflächen sauber und trocken.
Schutz gegen elektrostatische Entladung (ESD).
Sorgen Sie für eine elektrostatisch geschützte Umgebung, um somit Schäden und
Funktionsstörungen durch ESD zu vermeiden. Erden Sie vor dem Anschluß immer
Innen- und Außenleiter der Verbindungsleitung, um statische Aufladung zu entladen.
Die richtige Verwendung desAkku.
Wenneine Batterieverwendet wird, vermeiden Sie hohe Temperaturen bzw. Feuer
ausgesetzt werden. Bewahren Sie es außerhalbder Reichweitevon Kindern auf.
UnsachgemäßeÄnderung derBatterie (Anmerkung: Lithium-Batterie) kann zu einer
Explosion führen. VerwendenSie nur von RIGOL angegebenenAkkus.
Sicherer Transport.
Transportieren Sie das Gerät sorgfältig (Verpackung!), um Schäden an
Bedienelementen, Anschlüssen und anderen Teilen zu vermeiden.

RIGOL
DS1000B Service Guide
VIII
Sicherheits Begriffe und Symbole
Begriffe in diesem Guide. Diese Begriffe können in diesem Handbuch auftauchen:
WARNING
Die Kennzeichnung WARNING beschreibt Gefahrenquellen die leibliche
Schäden oder den Tod von Personen zur Folge haben können.
CAUTION
Die Kennzeichnung Caution (Vorsicht) beschreibt Gefahrenquellen die
Schäden am Gerät hervorrufen können.
Begriffe auf dem Produkt. Diese Bedingungen können auf dem Produkt
erscheinen:
DANGER
weist auf eine Verletzung oder Gefährdung hin, die sofort
geschehen kann.
WARNING
weist auf eine Verletzung oder Gefährdung hin, die möglicherweise
nicht sofort geschehen.
CAUTION
weist auf eine Verletzung oder Gefährdung hin und bedeutet, dass
eine mögliche Beschädigung des Instruments oder anderer
Gegenstände auftreten kann.
Symbole auf dem Produkt. Diese Symbole können auf dem Produkt erscheinen:
Gefährliche
Spannung Sicherheits- Hinweis Schutz-erde Gehäusemasse Erde

RIGOL
DS1000B Service Guide IX
Document Overview
Chapter 1 Specifications
List the specifications and general specifications of DS1000B series.
Chapter 2 To Prepare for Use
Introduce the preparations should be done before using the oscilloscope.
Chapter 3 Performance Test
Introduce how to execute the performance tests of DS1000B series to understand its
current performance status.
Chapter 4 Calibration
Introduce how to calibrate DS1000B series.
Chapter 5 Disassemble and Assemble
Introduce how to disassemble and assemble DS1000B series to get detailed
understanding of its structure.
Chapter 6 Troubleshooting
List the failures may appear when using DS1000B series and the corresponding
solutions.
Chapter 7 Replaceable Parts
List the replaceable parts.
Chapter 8 Service&Support
Provide the service and support information.

RIGOL Contents
DS1000B Service Guide
X
Contents
Guaranty and Declaration ..........................................................................I
General Safety Summary.......................................................................... II
Safety Terms and Symbols........................................................................ V
Allgemeine Sicherheits Informationen.....................................................VI
Sicherheits Begriffe und Symbole .........................................................VIII
Document Overview.................................................................................IX
Chapter 1 Specifications...................................................................... 1-1
Specifications..........................................................................................1-2
General Specifications..............................................................................1-5
Chapter 2 To Prepare for Use............................................................... 2-1
General Inspection...................................................................................2-2
Power-on Inspection ................................................................................2-3
To Connect the Probes .............................................................................2-4
Probe Compensation................................................................................2-5
Auto Setting of Waveform Display .............................................................2-7
Chapter 3 Performance Test ................................................................ 3-1
Interface Test..........................................................................................3-2
USB Host Interface Test.....................................................................3-2
USB Device Interface Test..................................................................3-4
LAN Interface Test.............................................................................3-5
Specification Test.....................................................................................3-6
Impedance Test ................................................................................3-7
DC Gain Accuracy Test.......................................................................3-8
Bandwidth Test...............................................................................3-11
Bandwidth Limit Test .......................................................................3-13
Time Base Accuracy Test..................................................................3-16
Zero Point Offset Test ......................................................................3-17
Chapter 4 Calibration........................................................................... 4-1
Chapter 5 Disassemble and Assemble.................................................. 5-1
Disassemble and Assemble Notices............................................................5-2
Structure Diagram ...................................................................................5-3
To Disassemble and Assemble the Cover....................................................5-4
To Disassemble and Assemble the Upper Metal Cover..................................5-5
To Disassemble and Assemble the Rear Metal Cover and Power Board ..........5-6
To Disassemble and Assemble the Interface Board and Fan..........................5-8
To Disassemble and Assemble the Panel and LCD .......................................5-9

Contents RIGOL
DS1000B Service Guide XI
To Disassemble and Assemble the Keyboard ............................................ 5-10
To Disassemble and Assemble the Main Board.......................................... 5-11
Chapter 6 Troubleshooting.................................................................. 6-1
Chapter 7 Replaceable Parts................................................................ 7-1
Chapter 8 Service&Support ................................................................. 8-1
Warranty................................................................................................8-2
Worry-free Support Plan...........................................................................8-3
General Care and Cleaning....................................................................... 8-4
Appendix Test Record Form.......................................................................1
Index .........................................................................................................1

RIGOL Contents
DS1000B Service Guide
XII
Figures
Figure 2-1 To Connect the power cord..............................................................2-3
Figure 2-2 Power-on Inspection.......................................................................2-3
Figure 2-3 BNC Interface Connection................................................................2-4
Figure 2-4 Circuit Under Test Connection..........................................................2-4
Figure 2-5 To Set the Probe Switch and Attenuation Coefficient ..........................2-5
Figure 2-6 To Connect the Probe Compensator..................................................2-5
Figure 2-7 Waveform Compensation.................................................................2-6
Figure 3-1 Connection of the USB Host Interface at the Front Panel ....................3-2
Figure 3-2 Connection of the USB Host Interface at the Rear Panel.....................3-2
Figure 3-3 USB Storage Device Connection Succeeds.........................................3-3
Figure 3-4 USB Device Interface Connection .....................................................3-4
Figure 3-5 USB Device Interface Connection Fails..............................................3-4
Figure 3-6 LAN Setup Interface........................................................................3-5
Figure 3-7 Remote Control Interface Based on LAN Interface Connection.............3-5
Figure 3-8 To Connect the Test Devices............................................................3-6
Figure 4-1 Self-calibration interface..................................................................4-1
Figure 4-2 Self-Calibration Finishes...................................................................4-2
Figure 5-1 DS1000B Stereogram......................................................................5-3
Figure 5-2 To Disassemble and Assemble the Cover...........................................5-4
Figure 5-3 To Disassemble and Assemble the Upper Metal Cover.........................5-5
Figure 5-4 To Disassemble and Assemble the Rear Metal Cover and Power Board.5-6
Figure 5-5 To Disassemble and Assemble the Interface Board and Fan ................5-8
Figure 5-6 To Disassemble and Assemble the Panel and LCD ..............................5-9
Figure 5-7 To Disassemble and Assemble the Keyboard....................................5-10
Figure 5-8 To Disassemble and Assemble the Main Board.................................5-11
Figure 7-1 DS1000B Exploded View..................................................................7-1

Contents RIGOL
DS1000B Service Guide XIII
Tables
Table 2-1 Auto Setting Items...........................................................................2-7
Table 3-1 Setting Value of the Oscilloscope under Test..................................... 3-11
Table 3-2 Horizontal Time Base Setting Value for the Oscilloscope under Test .... 3-17
Table 7-1 Replaceable Parts List ......................................................................7-1

Chapter 1 Specifications RIGOL
DS1000B Service Guide
1-1
Chapter 1 Specifications
All the specifications apply to the DS1000B series oscilloscopes unless otherwise
noted. To meet these specifications, the oscilloscope should meet the following two
conditions.
The instrument must have been operating continuously for at least 30 minutes
under the specified operating temperature.
You have to perform the “Self Cal” operation, accessible through the Utility menu,
if the operating temperature variation is equal to or greater than 5°C.
Note:
The vertical scale values are measured by a probe with 1X attenuation ratio
unless otherwise noted.
All the specifications are guaranteed unless those marked with “typical”.

RIGOL Chapter 1 Specifications
DS1000B Service Guide
1-2
Specifications
Acquisition
Sample Mode
Real-Time
Equivalent-time
Sample Rate
2GSa/s (half channel[1])
1GSa/s (each channel)
50GSa/s[2]
Average
After all the channels finish N samples at the same time,
N can be 2, 4, 8, 16, 32, 64, 128 and 256
Input
Input Coupling
DC, AC, GND
Input Impedance
1MΩ±2.0%
The input capacity is 18pF±3pF
Probe Attenuation
Factors
0.001X, 0.01X, 0.1X, 1X, 2X, 5X, 10X, 20X, 50X, 100X,
200X, 500X, 1000X
Maximum Input Voltage
Maximum input voltage of the analog channel:
CAT I 300Vrms, 1000Vpk; transient overvoltage
1000Vpk
CAT II 100Vrms, 1000Vpk
RP2200 10:1, CAT II 300Vrms
RP3300A 10:1, CAT II 300Vrms
Time delay between
channel (Typical)
500ps
Horizontal
Sample Rate Range
3.65Sa/s to 2GSa/s (Real-Time),
3.65Sa/s to 50GSa/s (Equivalent-time)
Waveform Interpolation
Sin(x)/x
Memory Depth
Half channel[1]: 16k sample points when the horizontal
timebase is 20ns/div or lower
8k sample points when the horizontal
timebase is 50ns/div or higher
Each channel: 8k sample points
Scan Speed Range
(S/div)
1ns/div~50s/div, DS1204B
2ns/div~50s/div, DS1104B
5ns/div~50s/div, DS1074B
1-2-5 Sequence
Sample Rate and
Delay Time Accuracy
±50ppm (any time interval that is ≥1ms)
Vertical
A/D Converter
8bit resolution, two channels sample simultaneously
Sensitivity (V/div)
Range
2mV/div to 10V/div at input BNC
Offset Range
±40V (250mV/div to 10V/div)
±2V (2mV/div to 245mV/div)
Equivalent Bandwidth
70MHz (DS1074B)

Chapter 1 Specifications RIGOL
DS1000B Service Guide
1-3
100MHz (DS1104B)
200MHz (DS1204B)
Single-shot Bandwidth
70MHz (DS1074B)
100MHz (DS1104B)
200MHz (DS1204B)
Selectable Analog
Bandwidth Limit
20MHz (typical)
Lower Frequency
Response (AC -3dB)
≤5Hz (at BNC)
Rise Time (Typical at
BNC)
<1.75ns, <3.5ns, <5ns,
On 200MHz, 100MHz, 70MHz respectively
DC Gain Accuracy
2mV/div to 5mV/div: ±4% (Normal or Average
acquisition mode)
10mV/div to 10V/div: ±3% (Normal or Average
acquisition mode)
DC Measurement
Accuracy (Average
Acquisition Mode)
When the vertical position is zero and N≥16:
±(DC Gain Accuracy × reading + 0.1div + 1mV)
When the vertical position is not zero and N≥16:
±[DC Gain Accuracy × (reading + vertical position) +
(1% × vertical position) + 0.2div]
Add 2mV for settings from 2mV/div to 245 mV/div
Add 50mV for settings from 250mV/div to 10V/div
Voltage Difference (△V)
Measurement Accuracy
(Average Acquisition
Mode)
Voltage difference between two points on the waveform
after performing average operation on ≥16 waveforms
captured under the same setting and environment
condition:
±(DC Gain Accuracy × reading + 0.05 div)
Trigger
Trigger Sensitivity
0.1div to 1.0div (adjustable)
Trigger Level Range
Internal
±6 divisions from center of screen
EXT
±1.2V
EXT/5
±6V
Trigger Level Accuracy
(T
ypical) applicable for
the signal of rising and
falling time ≥20ns
Internal
±(0.3div × V/div) (±4div from
center of screen)
EXT
±(6% of setting + 40 mV)
EXT/5
±(6% of setting + 200 mV)
Trigger Offset
Normal mode: pre-trigger (memory depth/(2 × sample
rate)), delay trigger 1s
Slow Scan mode: pre-trigger 6div, delay trigger 6div
Trigger Holdoff Range
100ns to 1.5s
HF Rejection
100kHz ±20%
LF Rejection
10kHz ±20%

RIGOL Chapter 1 Specifications
DS1000B Service Guide
1-4
Set Level to 50%
(Typical) Input signal frequency ≥50Hz
Edge Trigger
Edge Type
Rising, Falling, Rising + Falling
Pulse Trigger
Trigger Condition
(
＞
,
＜
, =) positive pulse, (
＞
,
＜
, =) negative pulse
Pulse Width Range
20ns to 10s
Video Trigger
Video Standard&Line
Frequency
Support standard NTSC, PAL and SECAM broadcast
standards. The range of the number of lines: 1 to 525
(NTSC) and 1 to 625 (PAL/SECAM)
Pattern Trigger
Pattern Setup
H, L, X, ,
Alternate Trigger
CH1, CH2, CH3, CH4
Edge, Pulse, Video
Measurement
Cursor
Manual
Voltage difference between cursors (∆V)
Time difference between cursors (∆T)
Reciprocal of ∆T in Hertz (1/∆T)
Track
Voltage value and time value of waveform
point
Auto
Cursors can be displayed in auto
measurement
Auto Measure
Vpp, Vamp, Vmax, Vmin, Vtop, Vbase, Vavg, Vrms,
Overshoot, Preshoot, Freq, Period, Rise Time, Fall Time,
+Width, -Width, +Duty, -Duty, Delay A→B, Delay A→
B，Phase A→B,Phase A→B
Note:
[1] Half channel indicates selecting one of CH1 and CH2, or one of CH3 and CH4.
[2] This is the highest specification for the highest model. The specific equivalent sample rate of
each model is as follows.
DS1204B: 50GSa/s
DS1104B: 25GSa/s
DS1074B: 10GSa/s