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Service Guide
Publication Number 54845-97008
February 2001
This manual applies directly to Infiniium oscilloscopes with serial number prefixes:
• XX3625 through XX4106 and above
for information about serial numbers, see “Instruments Covered by this Guide” in section 1.
The part number for this Service Guide
For Safety information, Warranties, and Regulatory
information, see the pages at the back of this book.
Copyright Agilent Technologies 1997-2001
All Rights Reserved.
Agilent Model 54835A/45
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The Agilent Technologies Infiniium Oscilloscope Model 54835A/45A/46A at a Glance Ease of use with high performance Acquisition and general controls start and stop the scope and do basic setup The Agilent Technologies Infiniium oscilloscopes combine unprecedented ease-of-use with high- Run and stop controls for continuous or performance digitizing oscilloscope functionality single-shot acquisitions to simplify your design and analysis measurement Clear display before one or more acquisit
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Horizontal Acquisition and general controls controls Display and Floppy Disk Drive Graphical Interface Trigger Setup Vertical Power Auxiliary Marker and Quick Inputs Trigger Input Measurements Vertical AutoProbe Controls Interface iii
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In This Book This book provides the service documentation for the Agilent Technologies 54835A/45A/46A oscilloscope. It is divided into eight chapters. Chapter 1 provides general information and specifications. Chapter 2 shows you how to prepare the oscilloscope for use. Chapter 3 gives performance tests. Chapter 4 covers calibration and adjustment procedures, how to do them, and how often they need to be done. Chapter 5 provides troubleshooting information. Chapter 6 gives the procedures and t
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Contents Contents 1 1 General Information 1-2 Instruments covered by this service guide 1-2 Accessories supplied 1-3 Options available 1-4 Accessories available 1-5 Specifications & characteristics 1-7 Agilent Technologies 54835A/45A/46A general characteristics 1-14 Recommended test equipment 1-16 2 Preparing for Use 2-2 Setting Up the Oscilloscope 2-3 To inspect the instrument 2-3 To connect power 2-4 To connect the mouse or other pointing device 2-5 To attach the optional trackball 2-5 To con
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Contents Mainframe Cal Factor Memory Error 4-2 Operating Hints 4-3 Loading Default Oscilloscope Settings 4-3 Loading New Software 4-3 Calibration Procedures 4-3 To check the power supply 4-4 To check the 715 Hz auxiliary output (probe compensation squarewave) 4-6 To check the flat panel display (FPD) 4-7 To run the self calibration 4-10 5Troubleshooting -25 Safety 5-2 Tools Required 5-2 ESD Precautions 5-2 Keystroke Conventions 5-2 Default Setup 5-3 To install the fan safety shield 5-3 To troubl
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Contents To remove and replace the floppy disk drive 6-21 To remove and replace the motherboard 6-21 To remove and replace the power supply 6-24 To remove and replace the fan 6-25 To remove and replace the CPU 6-26 To remove and replace RAM SIMMs or SDRAM DIMMs 6-27 To remove and replace an attenuator 6-28 To reset the attenuator contact counter 6-30 To remove and replace an acquisition hybrid 6-32 7 Replaceable Parts 7-2 Ordering Replaceable Parts 7-2 Power Cables and Plug Configurations 7-3
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1 Instruments covered by this service guide 1-2 Accessories supplied 1-3 Options available 1-4 Accessories available 1-5 Specifications & characteristics 1-7 Agilent Technologies 54835A/45A/46A general characteristics 1-14 Recommended test equipment 1-16 General Information
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General Information This chapter of the Agilent Technologies Infiniium Oscilloscope Service Guide gives you general information about the instrument. The following topics are covered in this chapter. • Instrument identification • Options • Accessories • Specifications and characteristics • Test equipment requirements Instruments covered by this service guide On the rear panel of the instrument is a serial number label and a VIN # label. The serial number is in the form of XX00000000 while th
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Chapter 1: General Information Accessories supplied Accessories supplied The following accessories are supplied. • Agilent Mouse, Agilent P/N C3751-60201 • Agilent Mouse Pad, Agilent P/N 54810-85903 •1 Keyboard • (4) Agilent 1161A 10:1 10 MΩ passive probes • Accessory Pouch (Agilent P/N 54810-68701) • Power cord (see chapter 7, “Replaceable Parts,” for available power cords) • User's Quick Start Guide • Programmer’s Guide and Programmer’s Quick Reference • Agilent Technologies Infiniium Oscillos
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Chapter 1: General Information Options available Options available The following options are available for the Agilent Technologies Infiniium oscilloscope. Table 1-2 Agilent Technologies Infiniium Oscilloscope Model 54835A/45A/46A Options Option Number Description 090 Delete standard probes 001 Add 2 standard probes—Agilent 1161A probes for the Agilent 54835A/45A/46A 002 Add 1 Agilent 1162A 1:1 passive probe 003 Add 1 Agilent 1163A 10:1 500 Ω , low-C passive probe 006 Add 1 Agilent 1152A 2.5 GH
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Chapter 1: General Information Accessories available Accessories available The following accessories are available for use with the Agilent Technologies Infiniium oscilloscope. Table 1-3 Accessories for the Agilent Technologies Infiniium Oscilloscope Model 54835A/45A/46A Agilent 1144A 800 MHz Active Probe Requires Agilent 1142A power supply—Agilent 1144-61604 probe power extender also required when using 2 or more Agilent 1144A active probes Agilent 1144-61604 Power Probe Extender Agilent 114
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Chapter 1: General Information Accessories available Agilent E2612A Touchpad Pointing Device Agilent E2625A Communication Mask Test Kit Agilent 54810-68703 Service Kit (includes service software and fan safety shield) Agilent 54801-00601 Fan Safety Shield (clips onto side of chassis with cover removed) Agilent E2635A Voice Control Retrofit Kit Agilent E2636A Microphone Replacement 1–6
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Chapter 1: General Information Specifications & characteristics Specifications & characteristics The following tables list the performance specifications and operating characteristics for the Agilent Technologies 54835A/45A/46A oscilloscope. Asterisks (*) denotes warranted specifications, all others are typical. Specifications are valid after a 30 minute warm-up period, and within ± 5 °C from the self-calibration temperature. Acquisition Maximum Sample Rate Real Time Agilent Models 54835A —
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Chapter 1: General Information Specifications & characteristics Vertical Number of Channels 4 (simultaneous acquisition) Bandwidth Analog Bandwidth (-3dB)* 50Ω : 1.0 GHz — Agilent 54835A 50Ω : 1.5 GHz — Agilent 54845A 50Ω : 2.25 GHz — Agilent 54846A 1 MΩ : 500 MHz (with Agilent 1161A probe) System Bandwidth Agilent 1161A 10:1 passive probe: 500 MHz Agilent 1162A 1:1 passive probe: 25 MHz Agilent 1163A 10:1, 500 Ω passive probe: 1.5 GHz Agilent 1152A 2.5 GHz, 0.6 pF active probe: 1.3 GHz (Agile
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Chapter 1: General Information Specifications & characteristics 2 Offset Accuracy* ± (1.00% of channel offset + 1% of full scale) at full-resolution channel scale. dc Voltage Measurement Dual Cursor ±[(dc gain accuracy)+(resolution)] 2 Accuracy* Single Cursor ±[(dc gain accuracy) +(offset accuracy)+(resolution/2)] AutoProbe Interface AutoProbe is an intelligent communication and power link between compatible probes and Infiniium scopes. AutoProbe completely configures the scope for the attache
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Chapter 1: General Information Specifications & characteristics Trigger 2 Sensitivity* Internal dc to 100 MHz: 0.5 div 100 MHz to 500 MHz: 1.0 div 500 MHz to 1 GHz: 1.5 div Auxiliary dc to 500 MHz: 300 mV pp Maximum Input Voltage* Auxiliary ±15 V, CAT I Minimum Pulse Width 500 ps at > 1.0 div (internal, external) Level Range Internal ±8 div from center screen Auxiliary ±5 V Sweep Modes Auto, triggered, single Trigger Coupling dc, ac (7 Hz), low frequency reject (50 kHz), high frequency reject
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Chapter 1: General Information Specifications & characteristics Display Display 8.4-inch diagonal color active matrix LCD module incorporating amorphous silicon TFTs. Active Display Area 171 mm x 128 mm (21,888 sq. mm) Waveform Viewing Area 104 mm x 159 mm (16,536 sq. mm) in Full screen mode (graphical user interface off) Display Resolution 640 pixels horizontally x 480 pixels vertically Waveform Colors Select from 100 hues, 0-100% saturation and 0-100% luminosity. Dual Intensity Infinite Pers
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Chapter 1: General Information Specifications & characteristics FFT 5 Frequency Range Agilent 54835A — 2-channel mode: dc to 2 GHz (Sample rate/2) Agilent 54835A — 4-channel mode: dc to 1 GHz (Sample rate/2) Agilent 54845A — 2-channel mode: dc to 4 GHz (Sample rate/2) Agilent 54845A — 4-channel mode: dc to 2 GHz (Sample rate/2) Agilent 54846A — 2-channel mode: dc to 4 GHz (Sample rate/2) Agilent 54846A — 4-channel mode: dc to 2 GHz (Sample rate/2) -5 Freq. Accuracy (1/2 frequency res
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Chapter 1: General Information Specifications & characteristics Video Output 15-pin VGA, full color. Notes 1 Rise Time figures are calculated from: tr=.35/Bandwidth. 2 Magnification is used below the 10 mV/div range and between the major attenuation settings. Full scale is defined as the major attenuator setting over an intermediate setting. (Major settings for 50Ω : 10, 20, 50, 100, 200, 500, 1000 mV Major settings for 1 MΩ : all as for 50Ω plus 2 V) 3N/A 4 For bandwidth limited signals, tr >=
