LeCroy LC564DL User manual

LC684DL-SM-E ECO 1001
LeCroy Color Digital Oscilloscopes
LC564DL
Service Manual
Version B- September 2002
LC564DL 1GHz Oscilloscope

LeCroy Corporate Headquarters
700 Chestnut Ridge Road
Chestnut Ridge, NY 10977-6499
USA
Tel : [phone]
http://www.lecroy.com
LeCroy European Service
LeCroy SA
2, Chemin Pre-de-la Fontaine
CH-1217 Meyrin 1 Geneva
Switzerland
Tel : [phone]
LeCroy Japan Service
LeCroy Japan Corporation
Sasazuka Center Bldg – 6th floor,
1-6, 2-Chome, Sasazuka, Shibuya-ku
Tokyo Japan 151-0073
Tel. [phone]
Copyright © March 2002. LeCroy is a registered trade-mark of LeCroyCorporation.
All rights reserved. Information in this publication supersedes all earlier versions.
Specifications subject to change.

Table of Contents i
Read this first
1. Warranty and Product Support 1-1
1.1 Warranty 1-1
1.2 Product Assistance 1-1
1.3 Maintenance Agreements 1-1
1.4 Staying Up to Date 1-2
1.5 Service and Repair 1-2
1.6 How to Return a Product 1-2
1.7 What Comes with your Scope 1-2
General Information 2-1
2.1 Product Assistance 2-1
2.2 Installation for Safe and Efficient Operation 2-1
Operating Environment 2-1
Safety Symbols 2-1
Power Requirements 2-3
Cleaning and Maintenance 2-3
Power On 2-3
Specifications
3.1 Signal Capture 3-1
3.2 Acquisition Modes 3-2
3.3 Timebase System 3-2
3.4 Triggering System 3-2
3.5 Smart trigger Types 3-3
3.6 Autosetup 3-3
3.7 Probes 3-3
3.8 Display 3-4
3.9 Rapid Signal Processing 3-4
3.10 Waveform Processing 3-5
3.11 Interfacing 3-6
3.12 General 3-6
3.13 CE Approval 3-6
Theory of Operation
4.1 Processor Board 4-1
MPC603e Processor 4-1
Power Supplies 4-1
32 bit Peripherals 4-1
Figure 4-1: Processor Block Diagram 4-2
DRAM 4-3
Normal Access Timing 4-3
Burst Access Timing 4-3
Refresh Timing 4-3

ii Table of Contents
Theory of Operation
Memory Mapping 4-4
VGA 4-4
9601-2 Board: VGA proper termination 4-4
Bus Sizer 4-5
16 and 8-bit peripherals 4-5
PCMCIA Interface 4-5
Flash Prom 4-6
NVRAM 4-6
Interrupt Controller 4-6
Floppy Controller 4-6
Centronics 4-6
Small Peripheral Interface 4-7
Serial Interface For On Board Peripherals 4-7
RTC 4-7
Front Panel 4-7
Watchdog and Reset Generation 4-8
Bus Error Generation 4-8
I/O Structure & GAL's Installed 4-8
Figure 4-2: Peripheral Decoding and Data Bus Size 4-9
4.2 900079 Main Acquisition Board 4-10
4.2.1 Introduction 4-10
4.2.2 Front End 4-10
Front End Power off State 4-11
Figure 4-3: Front End Power off State 4-11
50Ohm Input Direct Path 4-12
Figure 4-4: 50Ohm Input Direct Path 4-12
50Ohm Input Divide by 10 Path 4-12
Figure 4-5: 50Ohm Input Divide by 10 Path 4-12
1 MOhm Direct Path 4-13
Figure 4-6: 1 MOhm Direct Path 4-13
I Mohm Input Divide by 10 AC Coupled Path 4-13
Figure 4-7: 1 Mohm Divide by 10 AC Coupled 4-13
Front end analog controls 4-13
4.2.3 Main Acquisition Board Block Diagram 4-14
Figure 4-8: Front End, Trigger, Sample & Hold, ADC 4-14
4.2.4 One, Two and Four Channel Mode 4-15
Four Channel Mode 4-15
Figure 4-9 Four Channel Mode Signal Routing 4-15
Two Channel Mode 4-15
Figure 4-10 Two Channel Mode Signal Routing 4-15
4.2.4 Control & Transfer Block Diagram 4-16
Figure 4-11: Processor Control, Min/Max, Buffer Memory 4-16
4.2.5 Trigger 4-17
Analog Controls 4-17
TV Trigger 4-17
4.2.6 Analog to Digital Converter 4-17
Introduction 4-17

Theory of Operation
4.2.7 Time Base 4-18
Introduction 4-18
Figure 4-12: Time Base Block Diagram 4-18
4.3 F9301-4 GPIB & RS232 Interface 4-19
4.3.1 GPIB/RS232 Interface Block Diagram 4-19
Figure 4-13: GPIB/RS232 Interface Block Diagram 4-19
4.3.2 RS232 Serial Interface 4-19
4.3.3 GPIB Interface 4-19
4.4 Front Panel 4-20
4.5 F9300-7 Printer Controller 4-20
4.6 PS9611 Power Supply 4-20
4.6.1 Specifications 4-20
4.6.2 Power Supply Block Diagram 4-22
Performance Verification
5 Performance Verification Procedures 5-1
5.1 Introduction 5-1
5.1.1 List of Tested Characteristics 5-1
5.1.2 Calibration Cycle 5-1
5.2 Test Equipment Required 5-2
5.2.1 Test Records 5-2
5.3 Turn On 5-2
5.4 Input Impedance 5-3
5.4.1 Channel Input Impedance 5-3
5.4.1.a DC 1MΩ5-3
5.4.1.b AC 1MΩ5-4
5.4.1.c DC 50Ω5-5
5.4.2 External Trigger Input Impedance 5-6
5.4.2.a DC 1MΩ5-6
5.4.2.b DC 50Ω5-7
5.4.3 Ground 5-8
5.5 Leakage Current 5-9
5.5.1 Channel Leakage Current 5-9
5.5.1.a DC 1MΩ5-9
5.5.1.b DC 50Ω5-10
5.5.2 External Trigger Leakage Current 5-10
5.5.2.a DC 50Ω5-10
5.5.2.b DC 50ΩEXT/5 5-11
5.6 Average Noise Level 5-11
5.6.1 Peak to Peak Noise 5-11
5.6.1.a DC 1MΩ5-11
5.6.1.b AC 1MΩ5-14
5.6.1.c DC 50Ω5-15
5.6.1.d DC 50Ω, 2 Channel Mode 5-16
Table of Contents iii

iv Table of Contents
Performance Verification
5.6.2 RMS Noise 5-18
5.6.2.a DC 1MΩ5-18
5.6.2.b AC 1MΩ5-19
5.6.2.c DC 50Ω5-20
5.6.2.d DC 50Ω, 2 Channel Mode 5-21
5.6.3 Ground Line Test 5-23
5.6.3.a DC 1MΩ5-23
5.6.3.b DC 50Ω5-26
5.6.3.c DC 50Ω, 2 Channel Mode 5-27
5.7 DC Accuracy 5-28
5.7.1 Positive DC Accuracy 5-28
5.7.1.a DC 50Ω5-28
5.7.1.b DC 1MΩ5-32
5.7.2 Negative DC Accuracy 5-35
5.7.2.a DC 50Ω5-35
5.7.2.b DC 1MΩ5-36
5.8 Offset Accuracy 5-37
5.8.1 Positive Offset Accuracy 5-37
5.8.1.a DC 50Ω5-37
5.8.1.b DC 1MΩ5-40
5.8.2 Negative Offset Accuracy 5-41
5.8.2.a DC 50Ω5-41
5.8.2.b DC 1MΩ5-42
5.9 Bandwidth 5-44
5.9.1 Description 5-44
5.9.1.a DC 50Ω5-44
5.9.1.b DC 50Ωwith Bandwidth Limiter On 5-48
5.9.2 DC 1MΩ5-51
5.10 Trigger Level 5-54
5.10.1 Description 5-54
5.10.2 Channel Trigger at 0 Division Threshold 5-54
5.10.3 Channel Trigger at +3 Divisions Threshold 5-57
5.10.4 Channel Trigger at −3 Divisions Threshold 5-58
5.10.5 External Trigger at 0 Division Threshold 5-60
5.10.6 External Trigger at +3 Divisions Threshold 5-62
5.10.7 External Trigger at −3 Divisions Threshold 5-63
5.10.8 External/5 Trigger at 0 Division Threshold 5-64
5.10.9 External/5 Trigger at +3 Divisions Threshold 5-66
5.10.10 External/5 Trigger at −3 Divisions Threshold 5-67
5.11 Smart Trigger 5-68
5.11.1 Trigger on Pulse Width 10 nsec 5-68
5.11.1.a Pulse Width < 10 nsec 5-68
5.11.1.b Pulse Width > 10 nsec 5-68
5.11.2 Trigger on Pulse Width 100 nsec 5-70

Performance Verification
5.11.2.a Pulse Width < 100 nsec 5-70
5.11.2.b Pulse Width > 100 nsec 5-70
5.12 Time Base Accuracy 5-71
5.12.1 Description 5-71
5.12.2 500 MHz Clock Verification Procedure 5-71
5.13 Overshoot and Rise time 5-73
5.13.a DC 50Ω5-73
5.13.b DC 1MΩ5-75
Test Record
Table 1 LC684D Performance Certificate 1 of 12
Table 2 Impedance Test Record 2 of 12
Table 3 Leakage Voltage Test Record 2 of 12
Table 4 Peak to Peak Noise Test Record 3 of 12
Table 5 RMS Noise Test Record 3 of 12
Table 6 DC 1MΩGround Line Test Record 4 of 12
Table 7 DC 50ΩGround Line Test Record 4 of 12
Table 8 DC 50ΩPositive DC Accuracy Test Record 5 of 12
Table 9 DC 1MΩPositive DC Accuracy Test Record 6 of 12
Table 10 DC 50ΩNegative DC Accuracy Test Record 7 of 12
Table 11 DC 1MΩNegative DC Accuracy Test Record 7 of 12
Table 12 Positive Offset Test Record 7 of 12
Table 13 Negative Offset Test Record 8 of 12
Table 14 DC 50Ω, 50 mv/div. Bandwidth Test Record 8 of 12
Table 15 DC 50Ω, 100 mv/div. Bandwidth Test Record 9 of 12
Table 16 DC 50Ω, Bandwidth Limiter Test Record 9 of 12
Table 17 DC 1MΩ, Bandwidth Test Record 10 of 12
Table 18 Channel DC Trigger Test Record 10 of 12
Table 19 External & Ext/5 DC Trigger Test Record 11 of 12
Table 20 Smart Trigger Test Record 12 of 12
Table 21 Time Base Test Record 12 of 12
Table 22 Rise time and Overshoot Test Record 12 of 12
Table of Contents v

vi Table of Contents
Maintenance
6.1 Introduction 6-1
6.1.1 Safety Precautions 6-1
6.1.2 Antistatic Precautions 6-1
6.2 Disassembly and Assembly Procedure 6-2
6.2.1 Disassembly Procedure 6-2
6.2.1.a Removal of the Front Bezel 6-2
6.2.1.b Removal of the Upper Cover Assembly 6-2
6.2.1.c Removal of the Front Frame with Color Monitor 6-3
6.2.1.d Removal of the Processor Board 6-3
6.2.1.e Removal of the Power Supply Assembly 6-3
6.2.1.f Removal of the Upper Shield Assembly 6-4
6.2.1.g Removal of the Rear Panel Assembly 6-4
6.2.1.h Removal of the Main Board Assembly 6-4
6.2.2 Assembly Procedure 6-5
6.3 Software Update Procedure 6-6
6.3.1 Upgrading Firmware 6-6
6.3.1.a Performing the Update from GPIB 6-6
6.3.1.b Performing the Update from RS232 6-7
6.3.1.c Performing the Update from Floppy 6-8
6.3.2 Software Options 6-8
6.3.2.1 Changing Software Option Key 6-9
6.3.2.1.a Scope ID, Scope Serial Number 6-9
6.3.2.1.b Entering Option Key 6-9
6.3.3 Processor Board Exchange Procedure 6-9
6.4 Equipment and Spare Parts Recommended for Service 6-10
6.4.1 Test Equipment Required 6-10
6.4.2 Spare Parts Recommended for Service 6-10
6.5 Calibration Procedures 6-10
6.5.1 Power Supply Calibration Procedure 6-11
6.6 Troubleshooting and Flow Charts 6-12
6.6.1 Introduction 6-12
6.6.2 Line Fuses Replacement 6-12
6.6.3 Initial Troubleshooting Chart 6-12
6.6.4 Fan Problem 6-14
6.6.5 Power Supply Voltages Problem 6-15
6.6.6 Display Problem 6-16
6.6.7 Front Panel Controls Do not Operate 6-17
6.6.8 Remote Control GPIB & RS232 Problem 6-18
6.6.9 Performance Verification Fails 6-19
6.6.10 Floppy Disk Drive Problem 6-20
6.6.11 Graphic Printer Problem 6-21
6.6.12 Centronics Problem 6-22
6.6.13 Hard Disk Drive Problem 6-23

Replaceable Parts
LC684D, LC684DM, LC684DL & LC684DXL 7-1
9615-GP01 Graphic Printer Assembly 7-2
F9300-7 Printer Controller 7-2
F9300-8 Hard Disk Interface 7-4
F9301-4 GPIB & RS232 Interface 7-5
F9601-11-16 Processor with 16 Mbytes Memory 7-5
F9601-11-64 Processor with 64 Mbytes Memory 7-5
S9601-11 Processor Card without DRAM Memory 7-6
F9601-2 Centronics & VGA Interface 7-8
F9601-6 Floppy Disk Drive Assembly 7-9
F9601-8 Main Switch Board 7-9
F9602-1-64 Processor Card 200 Mhz With DRAM 7-9
S9602-1 Processor 200MHz Card Without DRAM 7-9
F9602-9 Universal Fan Control 7-12
F9615-3 Main Acquisition Board 7-12
S9615-3 Main Acquisition Board 7-13
F9615-5 Keyboard Assembly 7-19
LC684-ACC Accessories 7-20
LC684-CKTRIG Option 7-20
LCDFP9615 LCD Display and Front Panel Assembly 7-21
LCLC9615 Lower Cover 7-21
LCXXX-PAK Packaging Material 7-21
M9615 Mechanical Parts 7-22
RP9615 Rear Panel Assembly 7-22
S9615-21 Buffer Board 7-23
S9615-22 Interface Circuit 7-23
S9615-51 Keypad 7-23
S9615-52 Generic Front Panel 7-24
UC9615 Upper Cover Assembly 7-24
US9615 Upper Shield Rod Assembly 7-24
Table of Contents vii

viii Table of Contents
Mechanical Parts
Figure 8-1: LC684D/DM/DL/DXL Cabinet 8-1
Figure 8-2 LC684D/DM/DL/DXL Chassis Assembly 8-2
Cabinet Replaceable Parts 8-3
Chassis Replaceable Parts 8-3
Figure 8-3: Power Supply Installation 8-4
Figure 8-4: LC684D Lower Cover Assembly 8-5
Power Supply Installation Replaceable Parts 8-6
Lower Cover Replaceable Parts 8-6
Figure 8-5: Lower Cover with CKTRIG Option 8-7
Figure 8-6: Lower Cover 8-8
Lower Cover with CKTRIG Option Replaceable Parts 8-9
Lower Cover Replaceable Parts 8-9
Figure 8-7: CKTRIG Option 8-10
Figure 8-8: Rear Panel Assembly 8-11
CKTRIG Option Replaceable Parts 8-12
Rear Panel Replaceable Parts 8-12
Figure 8-9: F9615-3 Main Board Assembly 8-13
Figure 8-10: Main Board Assembly 8-14
F9615-3 Main Board Replaceable Parts 8-15
Figure 8-11: Upper Shield Assembly 8-16
Figure 8-12: Front Frame Assembly 8-17
Upper Shield Replaceable Parts 8-18
Front Frame Replaceable Parts 8-18
Figure 8-13: Keypad Assembly 8-19
Figure 8-14: Fan Assembly 8-20
Keypad Replaceable Parts 8-21
Fan Replaceable Parts 8-21
Figure 8-15: Graphic Printer Assembly 8-22
Figure 8-16: Upper Cover Assembly 8-23
Graphic Printer Replaceable Parts 8-24
Upper Cover Replaceable Parts 8-24
Figure 8-17: Hard Disk Assembly 8-25
Figure 8-18: Centronics & VGA Interface Assembly 8-26
Figure 8-19: Floppy Disk Assembly 8-27
Hard Disk Replaceable Parts 8-28
Centronics & VGA Replaceable Parts 8-28
Floppy Replaceable Parts 8-28
Figure 8-20 LC684D Dimensions 8-29
Figure 8-21: :C684D Packaging 8-30

Schematics, Layouts, Parts List
F9300-7 Graphics Printer Controller Schematic 9-2
F9300-7 Graphics Printer Controller Layout 9-4
F9300-7 Graphics Printer Controller Parts List 9-5
F9300-8 Hard Disk Interface Schematic 9-7
F9300-8 Hard Disk Interface Layout 9-8
F9300-8 Hard Disk Interface Parts List 9-9
F9301-4 GPIB & RS232 Interface Schematic 9-10
F9301-4 GPIB & RS232 Interface Layout 9-12
F9301-4 GPIB & RS232 Interface Parts List 9-13
F9601-11-X Processor Schematic 9-14
F9601-11-X Processor Layout 9-23
F9601-11-X Processor Parts List 9-25
F9601-2NY Centronics and VGA Interface Schematic 9-31
F9601-2NY Centronics and VGA Interface Layout 9-32
F9601-2NY Centronics and VGA Interface Parts List 9-33
F9601-61 Floppy Adapter Schematic 9-34
F9601-61 Floppy Adapter Layout 9-35
F9601-8NY Main Switch Board Schematic 9-36
F9601-8NY Main Switch Board Layout 9-37
F9601-61 Floppy Adapter Parts List 9-38
F9601-8NY Main Switch Board Parts List 9-38
F9602-1-X 200 MHz Processor Schematic 9-39
F9602-1-X 200 MHz Processor Layout 9-49
F9602-1-X 200 MHz Processor Parts List 9-51
F9602-9 Universal Fan Controller Schematic 9-57
F9602-9 Universal Fan Controller Layout 9-59
F9602-9 Universal Fan Controller Parts List 9-61
S9615-3 Main Acquisition Board Schematic 9-63
S9615-3 Main Acquisition Board Layout 9-123
S9615-3 Main Acquisition Board Parts List 9-161
S9615-21 Buffer Board Schematic 9-190
S9615-21 Buffer Board Layout 9-191
S9615-21 Buffer Board Parts List 9-192
S9615-22 Interface Circuit Schematic 9-193
S9615-22 Interface Circuit Layout 9-194
S9615-51 Keypad Schematic 9-195
S9615-51 Keypad Layout 9-196
S9615-22 Interface Circuit Parts List 9-197
S9615-51 Keypad Parts List 9-197
S9615-52 Generic Front Panel Schematic 9-198
S9615-52 Generic Front Panel Layout 9-199
S9615-52 Generic Front Panel Parts List 9-200
Table of Contents ix

xTable of Contents

Read this First 1-1
1. Warranty and Product Support
It is recommended that you thoroughly inspect the contents of the oscilloscope
packaging immediately upon receipt. Check all contents against the packing
list/invoice copy shipped with the instrument. Unless LeCroy is notified promptly of
any missing or damaged item, responsibility for its replacement cannot be accepted.
Contact your nearest LeCroy Customer Service Center or national distributor
immediately (see chapter 2 for contact numbers).
1.1 Warranty
LeCroy warrants its oscilloscope products for normal use and operation within
specifications for a period of three years from the date of shipment. Calibration each
year is recommended to ensure in-spec. performance. Spares, replacement parts
and repairs are warranted for 90 days. The instrument's firmware has been
thoroughly tested and is thought to be functional, but is supplied without warranty of
any kind covering detailed performance. Products not made by LeCroy are covered
solely by the warranty of the original equipment manufacturer.
Under the LeCroy warranty, LeCroy will repair or, at its option, replace any product
returned within the warranty period to a LeCroy authorized service center. However,
this will be done only if the product is determined after examination by LeCroy to be
defective due to workmanship or materials, and not to have been caused by misuse,
neglect or accident, or by abnormal conditions or operation.
1.2 Product Assistance
Help on installation, calibration, and the use of LeCroy equipment is available from
the LeCroy Customer Service Center in your country.
Note: This warranty replaces all other warranties, expressed or implied, including
but not limited to any implied warranty of merchantability, fitness, or adequacy for any
particular purpose or use. LeCroy shall not be liable for any special, incidental, or
consequential damages, whether in contract or otherwise. The client will be
responsible for the transportation and insurance charges for the return of products to
the service facility. LeCroy will return all products under warranty with transport
prepaid.
1.3 Maintenance Agreements
LeCroy provides a variety of customer support services under Maintenance Agreements.
Such agreements give extended warranty and allow clients to budget maintenance costs
after the initial three-year warranty has expired. Other services such as installation,
training, enhancements and on-site repairs are available through special supplemental
support agreements.

1-2 Read this First
1.4 Staying Up to Date
LeCroy is dedicated to offering state-of-the-art instruments, by continually refining and
improving the performance of LeCroy products. Because of the speed with which
physical modifications may be implemented, this manual and related documentation may
not agree in every detail with the products they describe. For example, there might be
small discrepancies in the values of components affecting pulse shape, timing or offset,
and — infrequently — minor logic changes. However, be assured the scope itself is in full
order and incorporates the most up-to-date circuitry. LeCroy frequently updates
firmware and software during servicing to improve scope performance, free of
charge during warranty. You will be kept informed of such changes, through new or
revised manuals and other publications.
Nevertheless, you should retain this, the original manual, for future reference
to your scope’s unchanged hardware specifications.
1.5 Service and Repair
Please return products requiring maintenance to the Customer Service Department in
your country or to an authorized service facility. The customer is responsible for
transportation charges to the factory, whereas all in-warranty products will be returned to
you with transportation prepaid. Outside the warranty period, you will need to provide us
with a purchase order number before we can repair your LeCroy product. You will be
billed for parts and labor related to the repair work, and for shipping.
1.6 How to return a Product
Contact the nearest LeCroy Service Center or office to find out where to return the
product. All returned products should be identified by model and serial number. You
should describe the defect or failure, and provide your name and contact number. In the
case of a product returned to the factory, a Return Authorization Number (RAN) should
be used.
Return shipments should be made prepaid. We cannot accept COD (Cash On
Delivery) or Collect Return shipments. We recommend air-freighting.
It is important that the RAN be clearly shown on the outside of the shipping package
for prompt redirection to the appropriate LeCroy department.
1.7 WhatComeswith Your Scope
The following items are shipped together with the standard configuration of this
oscilloscope:
•Front Scope Cover
•10:1 10 MΩPP005 Passive Probe — one per channel
•PP096 8GS/s adapter
•Two 250 V Fuses, AC Power Cord and Plug
•Operator’s Manual , Remote Control Manual, Hands-On Guide
•Performance Certificate or Calibration Certificate, Declaration of Conformity
Note: Wherever possible, please use the original shipping carton. If a substitute
carton is used, it should be rigid and packed so that that the product is surrounded
b
y
a minimum of four inches or 10 cm of shock
-
absorbent material.

General Information 2-1
2. General Information
2.1 Product Assistance
Help on installation, calibration, and the use of LeCroy equipment is available from your
local LeCroy office, or from LeCroy’s
•Customer Care Center, 700 Chestnut Ridge Road, Chestnut Ridge,
New York 10977–6499, U.S.A., tel. [phone]
•European Service Center, 2, rue du Pré-de-la-Fontaine, 1217 Meyrin 1,
Geneva Switzerland, tel. [phone].
•LeCroy Japan Corporation, Sasazuka Center Bldg – 6th floor, 1-6, 2-Chome,
Sasazuka, Shibuya-ku, Tokyo Japan 151-0073, tel. [phone]
2.2 Installation for Safe and Efficient Operation
Operating Environment
The oscilloscope will operate to its specifications if the environment is maintained within
the following parameters:
Temperature................5 to 40 °C (41 to 104 °F) rated.
Humidity.......................Maximum relative humidity 80 % RH (non-condensing) for
temperatures up to 31 °C decreasing linearly to 50 % relative humidity
at 40 °C
Altitude.........................2000 m (6560 ft)
The oscilloscope has been qualified to the following EN61010-1 category:
Installation (Overvoltage) CategoryII
Pollution Degree.............................2
Safety Symbols
Where these symbols or indications appear on the front or rear panels, and in this
manual, they have the following meanings:

2-2 General Information
.............................CAUTION: Refer to accompanying documents (for Safety-related
information). See elsewhere in this manual wherever the symbol is
present,as indicated in the Table of Contents.
.............................CAUTION: Risk of electric shock
..............................On (Supply)
[Off (Supply)
.............................. Earth (Ground) Terminal
............................Protective Conductor Terminal
...............................Earth (Ground) Terminal on BNC Connectors
WARNING................... Denotes a hazard. If a WARNING is indicated on the instrument, do
not proceed until its conditions are understood and met.
WARNING
Any use of this instrument in a
manner not specified by the
manufacturer may impair the
instrument’s safety protection.
The oscilloscope has not been designed to make direct measurements on the human
body. Users who connect a LeCroy oscilloscope directly to a person do so at their own
risk.

Power Requirements
The oscilloscope operates from a 115 V (90 to 132 V) or 220 V (180 to 250 V) AC
power source at 45 Hz to 66 Hz. No voltage selection is required, since the instrument
automatically adapts to the line voltage present.
The power supply of the oscilloscope is protected against short-circuit and
overload by means of two 6.3 A/250 V AC, “T” rated fuses (size: 5 X 20 mm),
located above the mains plug. Disconnect the power cord before inspecting or
replacing a fuse. Open the fuse box by inserting a small screwdriver under the
plastic cover and prying it open.
For continued fire protection at all line voltages, replace only with fuses of the
specified type and rating (T 6.3 A/250 V).
Maintain the ground line to avoid an electric shock.
None of the current-carrying conductors may exceed 250 V rms with respect to ground
potential. The oscilloscope is provided with a three-wire electrical cord containing a
three-terminal polarized plug for mains voltage and safety ground connection.
The plug's ground terminal is connected directly to the frame of the unit. For adequate
protection against electrical hazard, this plug must be inserted into a mating outlet
containing a safety ground contact.
CleaningAndMaintenance
Maintenance and repairs should be carried out exclusively by a LeCroy technician (see
Chapter 2). Cleaning should be limited to the exterior of the instrument only, using a
damp, soft cloth. Do not use chemicals or abrasive elements. Under no circumstances
should moisture be allowed to penetrate the oscilloscope. To avoid electric shocks,
disconnect the instrument from the power supply before cleaning.
CAUTION Risk of electrical shock:
No user serviceable parts
inside. Leave repair to
qualified personnel.
Power On
Connect the oscilloscope to the power outlet and switch it on by pressing the power
switch located on the rear panel. After the instrument is switched on, auto-calibration is
performed and a test of the oscilloscope's ADCs and memories is carried out. The full
testing procedure takes approximately 10 seconds, after which time a display will
appear on the screen.
General Information 2-3

2-4 General Information

Specifications 3-1
3. LC564DL Specifications
3.1 Signal Capture
Acquisition System
Bandwidth (-3 dB):
@ 50Ω: DC to 1 GHz
@ 1 MΩDC: Bandwidth dependent on probe used
No. of Channels: 4
Sample Rate: 2 GS/s (4 ch); 4 GS/s (2 ch)
Sensitivity:
50Ω: 2 mV/div to 1 V/div
1MΩ: 2 mV/div to 2 V/div
Scale factors: Choice of over 12 probe attenuation factors selectable via front
panel menus.
Offset Range:
2.0 - 4.99 mV/div: ±400 mV
5.0 - 99 mV/div (50Ωonly) : ±1 V
5.0 - 100 mV/div (1 MΩonly) : ±1 V
0.1 - 1.0V/div (50Ωonly): ±10 V
102 mv - 2.0V/div (1 MΩonly): ±20 V
±20 V across the whole sensitivity range when using the AP020/AP022 FET probe.
DC Accuracy: typical ±2% of full scale + 1% offset setting.
Vertical Resolution: 8 bits.
Bandwidth Limiter: 25 MHz, or 200MHz user selectable
Input Coupling: AC ( > 10Hz typ.), DC, GND.
Input Impedance: 10MΩ//11pF (system capacitance using PP005) or 50 Ω±1.25%.
Max Input: 50Ω: ±5V DC (500mW) or 5V RMS.
1MΩ: 100 V (DC+ peak AC ≤10 kHz).
Acquisition System Configuration
Active
Channels Maximum Sample
Rate
Maximum Record
Length
4 2 GS/s 1 M
2 4 GS/s 2 M
1 4 GS/s 2 M

3-2 Specifications
3.2 Acquisition Modes
Random Interleaved Sampling (RIS): 25GS/s.
For repetitive signals from 200 ps/div to 1 µs/div.
Single shot: For transient and repetitive signals from 1 ns/div (2 Ch), 2 ns/div (4Ch)
Sequence: Stores multiple events- each of them time stamped- in segmented
acquisition memories.
Dead Time Sequence mode: Typically 30 µs
Number of segments available 2-2000,
3.3 Timebase System
Timebases: Main and up to 4 Zoom Traces.
Time/Div Range: 1ns/div (at 4 GS/s), 2ns/div (at 2 GS/s) to 1,000 s/div.
Clock Accuracy: ≤10 ppm.
Interpolator resolution: 10 ps.
Roll Mode in normal trigger mode: 500 ms to 1,000 s/div.
External Clock: Optional (CKTRIG) Zero crossing level DC to 500 MHz rear panel
fixed frequency clock input (<20 ns rise/falltime)
External Reference: Optional (CKTRIG) 10 MHz rear-panel input.
3.4 Triggering System
Trigger Modes: Normal, Auto, Single, and Stop.
Trigger Sources: CH1, CH2, CH3, CH4, Line, Ext, Ext/5. Slope.
Level and Coupling are unique for each source.
Slope: Positive, Negative, Bi-Slope (Window in & out)
Coupling: AC (-3db at <10Hz), DC, HF (175 MHz to 1GHz), LFREJ (>50KHz),
HFREJ (<100MHz).
Pre-trigger recording: 0 to 100% of full scale (adjustable in 1% increments).
Post-trigger delay: 0 to 10,000 divisions (adjustable in 0.1 div increments).
Holdoff by time: 2 ns to 20 s.
Holdoff by events: 1 to 99,999,999.
Internal Trigger Range: ±5 div.
Maximum Trigger Frequency: 1 GHz (DC, AC), > 1.5 GHz (HF)
EXT Trigger Max Input: 1MΩ//20pF: 100V (DC + peak AC≤10kHz)
50Ω±3%: ±5 V DC (500 mW) or 5 V RMS.
EXT Trigger Range: ±0.5 V (±2.5 V with Ext/5).
Trigger Output: Optional ECL rear panel output (option CKTRIG). The calibrator
output can provide a trigger status or a Pass/Fail test output.