Rigol MSO4000 Series User manual

RIGOL
Service Guide
MSO4000/DS4000 Series Digital
Oscilloscope
Oct. 2014
RIGOL Technologies, Inc.

RIGOL
MSO4000/DS4000 Service Guide I
Guaranty and Declaration
Copyright
© 2014 RIGOL Technologies, Inc. All Rights Reserved.
Trademark Information
RIGOL is a registered trademark of RIGOL Technologies, Inc.
Publication Number
SGA15102-1110
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
II MSO4000/DS4000 Service Guide
Safety Requirement
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.

RIGOL
MSO4000/DS4000 Service Guide III
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
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.

RIGOL
IV MSO4000/DS4000 Service Guide
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
MSO4000/DS4000 Service Guide V
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
VI MSO4000/DS4000 Service Guide
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
MSO4000/DS4000 Service Guide VII
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
VIII MSO4000/DS4000 Service Guide
Document Overview
Format Conventions in this Manual:
1. Key
The function keys at the front panel are denoted by the format of “Button Name
(Bold) + Text Box”. For example, Utility denotes the “Utility” key.
2. Menu
The menu items are denoted by the format of “Menu Word (Bold) + Character
Shading”. For example, System denotes the “System” menu item under Utility.
3. Operation Step
The next step of operation is denoted by an arrow “”. For example, Utility 
System denotes pressing Utility at the front panel and then pressing System.
Content Conventions in this Manual:
MSO4000/DS4000 series includes the following models.
Model Analog
Bandwidth
Number of
Analog
Channels
Digital
Channel
Bandwidth
Number of
Digital
Channels
MSO4054
500MHz
4
250MHz
16
MSO4052
500MHz
2
250MHz
16
MSO4034
350MHz
4
250MHz
16
MSO4032
350MHz
2
250MHz
16
MSO4024
200MHz
4
250MHz
16
MSO4022
200MHz
2
250MHz
16
MSO4014
100MHz
4
250MHz
16
MSO4012
100MHz
2
250MHz
16
DS4054
500MHz
4
--
--
DS4052
500MHz
2
--
--
DS4034
350MHz
4
--
--
DS4032
350MHz
2
--
--
DS4024
200MHz
4
--
--
DS4022
200MHz
2
--
--
DS4014
100MHz
4
--
--
DS4012
100MHz
2
--
--
User Manuals of this Product:
The user manuals of this product include the Quick Guide, User’s Guide, Programming
Guide, Data sheet and etc. For the latest version of the desired manual, download it
from www.rigol.com.

Contents RIGOL
MSO4000/DS4000 Service Guide IX
Contents
Guaranty and Declaration.......................................................................... I
Safety Requirement..................................................................................II
General Safety Summary............................................................................ II
Safety Terms and Symbols .........................................................................IV
Allgemeine Sicherheits Informationen...........................................................V
Sicherheits Begriffe und Symbole...............................................................VII
Document Overview.............................................................................. VIII
Chapter 1 Disassemble and Assemble ................................................. 1-1
Disassemble and Assemble Notices ........................................................... 1-1
Exploded View of the Device ....................................................................1-2
To Disassemble the Rear Cover................................................................. 1-4
To Disassemble the Rear Metal Cover........................................................ 1-5
To Disassemble the Fan and Power Socket................................................. 1-7
To Disassemble the Power Supply and Interface Board................................1-8
To Disassemble the Front Panel and Knobs ................................................1-9
To Disassemble the LCD and Pinboard..................................................... 1-11
To Disassemble the Keyboards................................................................ 1-12
To Disassemble the Main Board .............................................................. 1-14
Assemble Procedures............................................................................. 1-16
Chapter 2 Troubleshooting&Maintenance ........................................... 2-1
Troubleshooting ......................................................................................2-1
Maintenance...........................................................................................2-3
System Maintenance .........................................................................2-3
Warranty..........................................................................................2-3
General Care and Cleaning................................................................. 2-4
Environmental Considerations ............................................................2-4

Chapter 1 Disassemble and Assemble RIGOL
MSO4000/DS4000 Service Guide
1-1
Chapter 1 Disassemble and Assemble
Disassemble and Assemble Notices
Notices:
Do not disassemble the instrument unless for working requirement.
Only authorized personnel can disassemble the instrument.
Cut off the power supply before disassembling the instrument.
Please wear anti-static wrist strap or make other anti-static precaution when
disassembling the instrument.
Please use proper tools and follow the correct steps.
Take care not to deform the metal structure and be scuffed when disassembling
the metal structures.
Tools Required:
Phillips screwdriver T10
BNC socket
5mm hexagon socket
WARNING
Make sure that the power supply is cut off before disassembling the
instrument. Only personnel with relative training or relative qualification
certification can disassemble the instrument.

RIGOL Chapter 1 Disassemble and Assemble
1-2 MSO4000/DS4000 Service Guide
Exploded View of the Device
You need to get a basic understanding of the main parts of the instrument before
disassembling and assembling the instrument. When disassembling or assembling the
instrument, please follow the procedures and avoid scratching the part surface. This
manual mainly introduces the disassemble and assemble methods of
MSO4000/DS4000 series digital oscilloscope. The exploded view of MSO4000/DS4000
(take MSO4000 as an example) is as shown in Figure 1-1.
Figure 1-1 Exploded View of MSO4000/DS4000
6
5
13
9
16
40
19
18
433 37 26
39 25 28 24 29
46
30 3 8
38
2
21
43
10
7
41
42
31
32
45
27
221113423 35
15
1720 1412
44
36

Chapter 1 Disassemble and Assemble RIGOL
MSO4000/DS4000 Service Guide 1-3
Table 1-1 Part Explanation of MSO4000/DS4000 Exploded View
No.
Part Name
No.
Part Name
1
Front Metal Plate
24
Power PCB Board
2
Rear Metal Cover
25
Heating Tube
3
Handle Groove on Rear Metal
Cover
26 Power Shield
4
LCD Frame
27
Interface PCB Board
5
Navigation Knob (Inner Layer)
28
USB HOST Interface
6
Navigation Knob (Outer Layer)
29
USB DEVICE Interface
7
Rear Cover
30
LAN Interface
8
Handle
31
Video Output Interface
9
Front Panel
32
BNC Connector
10 Main Rear Supporting Leg 33
PCB Board of Keys at the Right
Side of the Screen
11
Supporting Block of Keys at the
Top
34 Main Key PCB Board
12
Large Knob
35
Probe Pinboard
13 Small Knob 36
PCB Board of Keys at the Left
Side of the Screen
14
Front Non-slip Pad
37
Screen Pinboard PCB Board
15
Presser of Keys at the Top
38
Fan
16
Shield
39
Power Socket
17
Main Keys
40
LCD
18
Keys at the Left Side of the
Screen
41 Auxiliary Rear Supporting Leg
19
Keys at the Right Side of the
Screen
42 Rear Supporting Foot
20
Keys at the Top
43
Rear Supporting Foot Block
21 Power Key 44
Rear Supporting Foot Rotating
Shaft
22 Main Board 45
Torx Pan Head Screw Assembly
#FW3*6
23
PCB Board of Keys at the Top
46
Blot
The recommended disassemble procedures are as follows:
To Disassemble the Rear Cover To Disassemble the Rear Metal Cover To
Disassemble the Fan and Power Socket To Disassemble the Power Supply and
Interface Board To Disassemble the Front Panel and Knobs To Disassemble the
LCD and Pinboard To Disassemble the Keyboards To Disassemble the Main Board

RIGOL Chapter 1 Disassemble and Assemble
1-4 MSO4000/DS4000 Service Guide
To Disassemble the Rear Cover
Figure 1-2 To Disassemble the Rear Cover
Part Explanations:
①2 screws (torx countersunk head screw #FM3*10) at the handle groove.
②2 screws (torx pan head screw assembly #FW3*8) at the bottom of the cover (the
positions of some of the screws are not marked out in the figure above).
Disassemble Steps:
1. Remove the 2 screws (①) at the handle groove using the screwdriver (T10).
2. Remove the 2 screws (②, one on each side) at the bottom of the cover using the
screwdriver (T10).
3. Remove the rear cover gently.
①
①
②
Rear Cover

Chapter 1 Disassemble and Assemble RIGOL
MSO4000/DS4000 Service Guide 1-5
To Disassemble the Rear Metal Cover
Figure 1-3 To Disassemble the Rear Metal Cover
Part Explanation:
①8 screws (torx countersunk head screw #FM3*6) fixing the front metal plate and
rear metal cover (the positions of some of the screws are not marked out in the
figure above and please disassemble them according to their actual positions).
Disassemble Steps:
1. Remove the 8 screws (①, 3 on the top and bottom respectively and 1 on the left
and right respectively) fixing the front metal plate and rear metal cover using the
screwdriver (T10).
2. Remove the AC power cable, rear interface board power cable and data cable
connected to the main board. Then, take off the rear metal cover gently.
①
①
①
①
Rear Metal Cover

RIGOL Chapter 1 Disassemble and Assemble
1-6 MSO4000/DS4000 Service Guide
Tip
Pay attention to the connecting positions of the power cables and data cable
before removing them to avoid incorrect connection or incomplete connection
when assembling the instrument.
Insert the cables to the corresponding ports on the main board before
assembling the rear metal cover.

Chapter 1 Disassemble and Assemble RIGOL
MSO4000/DS4000 Service Guide 1-7
To Disassemble the Fan and Power Socket
Figure 1-4 To Disassemble the Fan and Power Socket
Part Explanations:
①2 screws (torx countersunk head screw #FM3*10) fixing the power socket.
②4 screws (torx countersunk head self tapping screw #PTF5*10) fixing the fan.
Disassemble Steps:
1. Remove the 2 screws (①) fixing the power socket using the screwdriver (T10).
2. Remove the 4 screws (②) fixing the fan using the screwdriver (T10).
3. Remove the fan cable and the power socket cables from the corresponding port.
4. Remove the fan and the power socket gently.
Tip
1. When assembling the fan, pay attention to its direction.
2. Pay attention to the connecting positions of the fan cable and the power
socket cables before removing them to avoid incorrect connection or
incomplete connection when assembling the instrument.
Fan
Power Socket
②
①

RIGOL Chapter 1 Disassemble and Assemble
1-8 MSO4000/DS4000 Service Guide
To Disassemble the Power Supply and Interface
Board
Figure 1-5 To Disassemble the Power Supply and Interface Board
Part Explanations:
①4 screws (torx pan head screw #FM3*10) fixing the power supply.
②3 screws (torx pan head screw assembly #FW3*6) fixing the rear interface board.
Disassemble Steps:
1. Remove the 2 nuts and washers at the BNC ports on the rear metal cover using
the BNC socket.
2. Remove the British System DB9 screws on both ends of RS232 using the 5mm
hexagon socket.
3. Remove the 4 screw (①) fixing the power supply using the screwdriver (T10).
4. Remove the 3 screws (②) fixing the rear interface board using the screwdriver
(T10).
5. Remove the power supply module and the interface board gently.
①
①
①
①
Interface Board
Power Supply
②
②
②
BNC × 2
RS232