Rigol DG1000 Series User manual

RIGOL
Service Guide
DG1000 Series Dual-channel
Function/Arbitrary Waveform Generator
Oct. 2015
RIGOL TECHNOLOGIES, INC.

RIGOL
DG1000 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
SGB06102-1110
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 the company’s sole decision.
Information in this publication replaces all previously released materials.
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 that 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 TECHNOLOGIES, INC.
E-mail: [e-mail]
Website: www.rigol.com

RIGOL
DG1000 Service Guide
II
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 follow the instructions
specified in this manual to use the instrument properly.
Use Proper Power Cord.
Only the exclusive 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, connect the earth terminal of the power cord to the Protective
Earth terminal before connecting any input or output terminals.
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.
Ensure that no overvoltage (such as that caused by a bolt of lightning) can reach the
product. Otherwise, the operator might be exposed to the danger of an electric shock.
Do Not Operate Without Covers.
Do not operate the instrument with covers or panels removed.
Do Not Insert Anything Into the Air Outlet.
Do not insert anything into the air outlet to avoid damage to 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 on.
Do Not Operate With Suspected Failures.
If you suspect damage occurs to the instrument, have it inspected by RIGOL

RIGOL
DG1000 Service Guide
III
authorized personnel before further operations. Any maintenance, adjustment or
replacement especially to circuits or accessories must be performed by RIGOL
authorized personnel.
Provide Adequate Ventilation.
Inadequate ventilation may cause an increase of temperature in the instrument, which
would cause damage to the instrument. So please keep the instrument well ventilated
and inspect the intake and fan regularly.
Do Not Operate in Wet Conditions.
To avoid short circuiting to the interior of the instrument or an electric shock, never
operate the instrument in a humid environment.
Do Not Operate in an Explosive Atmosphere.
To avoid personal injuries or damage to the instrument, never operate the instrument
in an explosive atmosphere.
Keep Instrument Surfaces Clean and Dry.
To avoid dust or moisture from affecting the performance of the instrument, keep the
surfaces of the instrument clean and dry.
Prevent Electrostatic Impact.
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.
Use the Battery Properly.
Do not expose the battery (if available) to high temperature or fire. Improper change
of a battery (lithium battery) may cause an explosion. Use the RIGOL specified
battery only.
Handle with Caution.
Please handle with care during transportation to avoid damage to keys, knobs,
interfaces and other parts on the panels.

RIGOL
DG1000 Service Guide
IV
Safety Notices and Symbols
Safety Notices in this Manual:
WARNING
Indicates a potentially hazardous situation which, if not avoided, will result
in death or serious injury.
CAUTION
Indicates a potentially hazardous situation which, if not avoided, could
result in damage to the product or loss of important data.
Safety Terms 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.
Safety Symbols on the Product:
Hazardous
Voltage
Safety
Warning
Protective
Earth
Terminal
Chassis
Ground
Test
Ground

Contents RIGOL
DG1000 Service Guide
V
Contents
Guaranty and Declaration.......................................................................... I
Safety Requirement..................................................................................II
General Safety Summary............................................................................ II
Safety Notices and Symbols........................................................................IV
Chapter 1 Disassembly and Assembly.................................................. 1-1
Notices to Disassembly and Assembly........................................................1-1
Instrument Appearance............................................................................1-2
Disassemble the Handle...........................................................................1-3
Disassemble the Rear Cover .....................................................................1-4
Disassemble the Metal Enclosure ..............................................................1-5
Disassemble Rear BNC Boards..................................................................1-6
Disassemble the Power Supply Board ........................................................1-7
Disassemble the Main Board.....................................................................1-8
Disassemble the Front Panel and LCD........................................................ 1-9
Disassemble the Keypad Board............................................................... 1-10
Assembly Procedures............................................................................. 1-11
Chapter 2 Troubleshooting&Maintenance ........................................... 2-1
Troubleshooting ......................................................................................2-1
Maintenance...........................................................................................2-2
System Maintenance .........................................................................2-2
Exploded View Drawing and Replacement Parts List .............................2-3
Warranty..........................................................................................2-5
Care and Cleaning.............................................................................2-6

Chapter 1 Disassembly and AssemblyRIGOL
DG1000 Service Guide
1-1
Chapter 1 Disassembly and Assembly
Notices to Disassembly and Assembly
Notices:
Do not disassemble the instrument unless for working requirement.
Only authorized personnel are allowed to 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 or get hurt when disassembling the
metal structures.
To avoid causing damage to the instrument due to improper operation and to
save your time, we recommend you to follow the disassembly steps and methods
in this guide manual.
Required Tools:
Phillips screwdriver T20 and T10
BNC socket wrench
WARNING
Ensure that the power supply is cut off before disassembling the
instrument. Only well-trained professional personnel or qualified
personnel are allowed to disassemble the instrument.
Note:
DG1000 series dual-
channel function/arbitrary waveform generator consists of two
models: DG1022 and DG1022A. In this manual, DG1022 is taken as an example for
illustration and the contents are also applicable to DG1022A.

RIGOL Chapter 1 Disassembly and Assembly
DG1000 Service Guide
1-2
Instrument Appearance
The figure below is the appearance drawing of DG1000 series dual-channel
function/arbitrary waveform generator. 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 instrument.
The recommended disassembly procedures are as follows:
Disassemble the Handle Disassemble the Rear Cover Disassemble the Metal
Enclosure Disassemble Rear BNC Boards Disassemble the Power Supply Board
Disassemble the Main Board Disassemble the Front Panel and LCD 
Disassemble the Keypad Board
Figure 1-1 DG1000 Appearance Drawing

Chapter 1 Disassembly and AssemblyRIGOL
DG1000 Service Guide
1-3
Disassemble the Handle
Figure 1-2 Disassemble the Handle
Disassembly Step:
Rotate the handle upright and pull out from the sides of the instrument to remove the
handle.
Handle

RIGOL Chapter 1 Disassembly and Assembly
DG1000 Service Guide
1-4
Disassemble the Rear Cover
Figure 1-3 Disassemble the Rear Cover
Part Description:
①2 screws (M4×8 torx pan head screw, used for fastening the rear cover to the
metal chassis)
Disassembly Steps:
1. Use the T20 screwdriver to remove 2 screws (①) that fasten the rear cover to the
metal chassis.
2. Take off the rear cover gently (Note: Pay attention to the direction of the rear
cover when assembling it, do not turn the rear cover upside down).
Rear Cover
①
①

Chapter 1 Disassembly and AssemblyRIGOL
DG1000 Service Guide
1-5
Disassemble the Metal Enclosure
Figure 1-4 Disassemble the Metal Enclosure
Part Description:
①1 screw (M4×8, torx pan head screw, used for fastening the metal enclosure to the
metal chassis)
Disassembly Steps:
1. Use the T20 screwdriver to remove the screw (①) that secures the metal
enclosure.
2. Take off the metal enclosure gently.
Metal Enclosure
①

RIGOL Chapter 1 Disassembly and Assembly
DG1000 Service Guide
1-6
Disassemble Rear BNC Boards
Figure 1-5 Disassemble Rear BNC Boards
Part Description:
①4 BNC nuts.
Disassembly Steps:
1. Remove 4 BNC nuts (①) using the BNC socket wrench.
2. Take out two rear BNC boards from the metal chassis and remove two 10-pin
cables that connect the main board.
Note:
There are two sets of rear BNC boards and each board has two BNC connectors on
it. When assembling, follow the bottom-up assembly procedure. First, insert the
10-pin cable of the rear BNC board into the slot of the main board; then from inside
the metal chassis, get two BNC connectors on the rear BNC board through two
holes located at the lower position of the rear BNC fixture, then fasten them to the
fixture using two BNC nuts. Perform the same assembly procedure for another set
of the rear BNC board.
Rear BNC Boards
①

Chapter 1 Disassembly and AssemblyRIGOL
DG1000 Service Guide
1-7
Disassemble the Power Supply Board
Figure 1-6 Disassemble the Power Supply Board
Part Description:
①4 screws (M3×6 torx pan head combination screws, used for fastening the power
supply board to the metal chassis)
Disassembly Steps:
1. Remove the M4×8 torx pan head screw (as indicated in the figure above) that
fastens the power supply ground wire to the metal chassis using the T20
screwdriver.
2. Disconnect the wires on the power supply board.
3. Remove 4 screws (①) that fasten the power supply board to the metal chassis
using the T20 screwdriver.
4. Take out the power supply board.
Note:
Before disconnecting the wires on the power supply board, remember the
connection methods and positions of the wires to avoid incorrect connection
when assembling.
①
①
①
①
The position of the screw fixing
the power supply ground wire
Power Supply Board

RIGOL Chapter 1 Disassembly and Assembly
DG1000 Service Guide
1-8
Disassemble the Main Board
Figure 1-7 Disassemble the Main Board
Part Description:
①6 screws (M3×6 torx pan head combination screws, used for fastening the main
board to the metal chassis)
Disassembly Steps:
1. Disconnect the wires on the main board.
2. Remove 6 screws (①) that fasten the main board to metal chassis using the T10
screwdriver.
3. Take out the main board.
Note:
Disassembling the main board is not recommended unless otherwise required.
Before disconnecting wires on the main board, remember the connection
methods and positions of the wires to avoid incorrect connection when
assembling.
Main Board
①
①
①
①
①
①

Chapter 1 Disassembly and AssemblyRIGOL
DG1000 Service Guide
1-9
Disassemble the Front Panel and LCD
Figure 1-8 Disassemble the Front Panel and LCD
Part Description:
①4 screws (PTP3×8 torx pan head self-tapping screw, used for fastening the front
panel to the metal chassis)
②3 screws (PTP3×8 torx pan head self-tapping screw, used for fastening the LCD to
the front panel.
Disassembly Steps:
1. Remove 4 screws (①) that fasten the front panel to the metal chassis using the
T10 screwdriver.
2. Remove the knob on the front panel.
3. Take off the front panel gently.
4. Remove 3 screws (②) that fasten the LCD to the front panel using the T10
screwdriver.
5. Take off the LCD gently.
②
②
①
①
Front Panel
LCD
②

RIGOL Chapter 1 Disassembly and Assembly
DG1000 Service Guide
1-10
Disassemble the Keypad Board
Figure 1-9 Disassemble the Keypad Board
Part Description:
①6 screws (M3×6 torx flat head countersunk screws, used for fastening the keypad
board to the metal chassis)
②2 screws (M3×6 torx pan head combination screws, used for fastening the front
USB board to the metal chassis)
Disassembly Steps:
1. Take off the rubber keypad.
2. Remove 6 screws (①) that fasten the keypad board to the metal chassis using the
T10 screwdriver, then take off the keypad board.
3. Remove 2 screws (②) that fasten the front USB board to the metal chassis using
the T10 screwdriver, then take off the front USB board.
②
②
①
Key Board
Rubber Keys
Front USB Board

Chapter 1 Disassembly and AssemblyRIGOL
DG1000 Service Guide
1-11
Assembly Procedures
The assembly procedures are simply the reversal of the disassembly procedures.
Check whether the cables are correctly connected and whether all the screws are
installed after completing each assembly procedure.