Rigol DSG3000 Series User manual

RIGOL
Service Guide
DSG3000 Series RF Signal Generator
Nov. 2013
RIGOL Technologies, Inc.

RIGOL
DSG3000 Service Guide I
Guaranty and Declaration
Copyright
© 2013 RIGOL Technologies, Inc. All Rights Reserved.
Trademark Information
RIGOL is a registered trademark of RIGOL Technologies, Inc.
Publication Number
SGG01100-1110
Notices
RIGOL products are protected by patent law in and outside of P.R.C.
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.
RIGOL shall not be liable for losses caused by either incidental or consequential 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 or 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]
Websites: www.rigol.com

RIGOL
II DSG3000 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 power cord to the Protective Earth terminal
before 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 the isobaric electric
potential as 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.
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 expose to 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 qualified service 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 increasing of temperature or damages to the device. So please keep
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 in
a humid environment.

RIGOL
DSG3000 Service Guide III
Do Not Operate in an Explosive Atmosphere.
In order to avoid damages 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 air, please keep the surface of device clean and dry.
Electrostatic Prevention.
Operate in an electrostatic discharge protective area environment to avoid damages induced by static
discharges. Always ground both the internal and external conductors of the cable to release static
before connecting.
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 damages to buttons, knob interfaces and other
parts on the panels.

RIGOL
IV DSG3000 Service Guide
Safety Terms and Symbols
Terms Used in this Manual. These terms may appear in this manual:
WARNING
Warning statements indicate the conditions or practices that could result in injury or
loss of life.
CAUTION
Caution statements indicate the 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
indicates an injury or hazard may immediately happen.
WARNING
indicates an injury or hazard may be accessible potentially.
CAUTION
indicates potential damage to the instrument or other property might occur.
Symbols Used on the Product. These symbols may appear on the product:
Hazardous
Voltage
Safety
Warning
Protective
Earth
Terminal
Chassis
Ground
Test
Ground

RIGOL
DSG3000 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.
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 qualifiziertes Kundendienstpersonal 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

RIGOL
VI DSG3000 Service Guide
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
RIGOLangegebenenAkkus.
Sicherer Transport.
Transportieren Sie das Gerät sorgfältig (Verpackung!), um Schäden an Bedienelementen, Anschlüssen
und anderen Teilen zu vermeiden.

RIGOL
DSG3000 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
bedeutet, dass eine mögliche Beschädigung des Instruments oder anderer
Gegenstände auftreten kann.
Symbole auf dem Produkt. Diese Symbole können auf dem Produkt erscheinen:
GefährlicheS
pannung Sicherheits- Hinweis Schutz-erde Gehäusemasse Erde

RIGOL
VIII DSG3000 Service Guide
Document Overview
Format Conventions in this Manual
1. Button
The key at the front panel is denoted by the format of “Text Box + Button Name (Bold)” in the
manual, for example, FREQ denotes the FREQ key.
2. Menu:
The menu is denoted by the format of “Character Shading + Menu Word (Bold)” in the manual,
for example, Frequency denotes the frequency item under FREQ.
3. Connector:
The connector at the front or rear panel is denoted by the format of “Square Brackets +
Connector Name (Bold) in the manual, for example, [RF OUTPUT 50Ω].
4. Operation Steps:
The next step of the operation is denoted by an arrow “” in the manual. For example, FREQ 
Frequency denotes pressing FREQ at the front panel and then pressing Frequency.
Manuals of this Product
The manuals of this product mainly include the quick guide, user’s guide, programming guide, data
sheet and service guide. For the newest version of the desired manual, download it from
www.rigol.com.

RIGOL
DSG3000 Service Guide IX
Content
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 Instrument.....................................................................................1-2
Disassemble the Rear Foot Pad........................................................................................1-4
Disassemble the Handle..................................................................................................1-5
Disassemble the Feet......................................................................................................1-6
Disassemble the Metal Cover...........................................................................................1-7
Disassemble the Front Shield...........................................................................................1-8
Disassemble the Front Panel............................................................................................1-9
Disassemble the IQ Module...........................................................................................1-10
Disassemble the Digital Board........................................................................................1-11
Disassemble the Power Module......................................................................................1-12
Disassemble the IQ Input and Output Cables..................................................................1-13
Disassemble the OCXO Blank.........................................................................................1-14
Disassemble the OCXO Module......................................................................................1-15
Disassemble the Power Outlet .......................................................................................1-16
Disassemble the IQ Rigid Cable .....................................................................................1-17
Disassemble the RF Module...........................................................................................1-18
Disassemble the Fan.....................................................................................................1-19
Disassemble the Front Panel Keys and Knob....................................................................1-20
Disassemble the N Head ...............................................................................................1-21
Disassemble the LCD Display.........................................................................................1-22
Disassemble the Key Board ...........................................................................................1-23
Assemble Procedures....................................................................................................1-24
Chapter 2 Troubleshooting&Maintenance ................................................................. 2-1
Troubleshooting .............................................................................................................2-1
Maintenance..................................................................................................................2-4
System Maintenance ................................................................................................2-4
Warranty.................................................................................................................2-4
General Care and Cleaning........................................................................................2-5
Environmental Considerations ...................................................................................2-5

Chapter 1 Disassemble and Assemble RIGOL
DSG3000 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 the 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 screw driver T20/T10
BNC socket
SMA torque wrench
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 DSG3000 Service Guide
Exploded View of the Instrument
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 take care not to scratch the surfaces of the parts. This manual mainly illustrates the
disassembly and assembly methods of the DSG3000 series RF signal generator. The exploded view of
the DSG3000 (with options IQ-DSG3000 and OCXO-A08) is shown in Figure 1-1.
Figure 1-1 Exploded View of DSG3000

Chapter 1 Disassemble and Assemble RIGOL
DSG3000 Service Guide 1-3
Table 1-1 Parts Description of DSG3000 Exploded View
SN
Part Name
SN
Part Name
1
Front panel
21
Rear foot pad below
2
Side key
22
Torx pan head screw M4*14
3
LCD display
23
Rear foot pad above
4
Main key
24
Metal cover
5
Knob
25
Digital board
6
LCD fixed frame
26
IQ input and output cables (BNC)
7
Torx pan head screw assembly
#PM/SW/FW3*8
27
BNC fixing plate
8
N head
28
OCXO module
9
Front shield on the lower left
29
Torx countersunk head screw #FM3*10
10
Torx pan head screw M4*6
30
Power outlet
11
Metal front cover
31
Front shield on the upper right
12
IQ module
32
Countersunk head torx tapping screw
ST5*10
13
Front shield on the lower right
33
Power module
14
Torx pan head screw assembly
#PM/SW/FW3*6
34
Fan
15
Handle assembly
35
Front shield on the upper left
16
Torx pan head screw assembly
#PM/SW/FW3*25
36
Metal chassis
17
RF module
37
BNC gasket
18
Little feet
38
Main key board
19
Metal brace
39
LCD adapter plate
20
Torx countersunk head screw M5*14
40
Left key board
The recommended disassemble procedures are as follows.
Disassemble the Rear Foot Pad →Disassemble the Handle →Disassemble the Feet →Disassemble
the Metal Cover →Disassemble the Front Shield →Disassemble the Front Panel →Disassemble
the IQ Module →Disassemble the Digital Board →Disassemble the Power Module →Disassemble
the IQ Input and Output Cables →Disassemble the OCXO Blank →Disassemble the OCXO Module
→Disassemble the Power Outlet →Disassemble the IQ Rigid Cable →Disassemble the RF Module
→Disassemble the Fan →Disassemble the Front Panel Keys and Knob →Disassemble the N Head
→Disassemble the LCD Display →Disassemble the Key Board

RIGOL Chapter 1 Disassemble and Assemble
1-4 DSG3000 Service Guide
Disassemble the Rear Foot Pad
Figure 1-2 Disassemble the Rear Foot Pad
Part Explanation:
①4 screws (M4*14 torx pan head screw) fixing the rear foot pads.
Disassemble Steps:
1. Remove the 4 screws (①) fixing the rear foot pads using the screw driver (T20).
2. Take off the rear foot pads gently.
NOTE: the rear foot pads above the instrument have two ribs and those below the instrument have
three ribs when assembling.
①
①
①
①

Chapter 1 Disassemble and Assemble RIGOL
DSG3000 Service Guide 1-5
Disassemble the Handle
Figure 1-3 Disassemble the Handle
Part Explanation:
①1 handle metal plate.
②1 handle rubber sleeve.
③2 handle locating rings.
④2 handle locating plastic parts.
⑤2 strews (M5*14 torx countersunk head screw) fixing the handle.
Disassemble Steps:
1. Remove the 2 screws (⑤) fixing the handle using the screw driver (T20).
2. Take off the handle locating plastic parts, handle locating rings and the handle assembly which
consists of the handle rubber sleeve and handle metal plate.
NOTE: you need to check in advance whether the metal cover is installed into place when assembling.
③
④
⑤
①
②
③
④
⑤

RIGOL Chapter 1 Disassemble and Assemble
1-6 DSG3000 Service Guide
Disassemble the Feet
Figure 1-4 Disassemble the Feet
Part Explanation:
①2 screws (M4*6 torx pan head screw) fixing the feet.
②2 little feet.
③2 metal braces.
Disassemble Steps:
1. Remove the 2 screws (①) fixing the feet using the screw driver (T20).
2. Take off the feet gently.
NOTE: make sure that the direction of the metal braces is correct when assembling.
①
①
②
②
③
③

Chapter 1 Disassemble and Assemble RIGOL
DSG3000 Service Guide 1-7
Disassemble the Metal Cover
Figure 1-5 Disassemble the Metal Cover
Part Explanation:
①1 metal cover.
Disassemble Step:
1. Remove the metal cover gently in the direction of the arrow (as shown in the figure above).
NOTE: the combine seam of the metal cover situates at the bottom when assembling.
①

RIGOL Chapter 1 Disassemble and Assemble
1-8 DSG3000 Service Guide
Disassemble the Front Shield
Figure 1-6 Disassemble the Front Shield
Part Explanation:
①8 screws (M4*6 torx pan head screw) fixing the front shields.
Disassemble Steps:
1. Remove the 8 screws (①) fixing the front shields using the screw driver (T20).
2. Take off the front shields gently.
NOTE: when assembling, the front shields above the instrument have two ribs and those below the
instrument have one rib.
①
①
①
①
①
①
①
①