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54835A
Agilent Technologies 54835A User Manual
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Chapter 7: R
eplaceab
le Parts
Explod
ed Views
7–5
Fan and
Acqu
isi
tion As
sem
bly
A11
B1 & B3
W2
A13A1
W4
W3
W5
H22
W17
A3
H8
MP60
H1
H2
W6
Option
al Fan
Safety S
hield
A13A2
W11
W21
A13A5-8
A13
H2
H28
H29
H27
176
178
Table of Contents
Table of Contents
5
In this Book
4
1 General Information
9
Instruments Covered by this Service Guide
10
Accessories Supplied
11
Options Available
12
Accessories Available
13
Specifications & Characteristics
15
Agilent Technologies 54835A/45A/46A General Characteristics
22
Recommended Test Equipment
24
Preparing for Use
25
2 Preparing for Use
26
Setting up the Oscilloscope
27
To Inspect the Instrument
27
To Connect Power
28
To Connect the Mouse or Other Pointing Device
29
To Attach the Optional Trackball
29
To Connect the Keyboard
31
To Connect to the LAN Card
31
To Connect Oscilloscope Probes
32
To Connect a Printer
33
To Connect an External Monitor
34
To Connect the GPIB Cable
34
To Tilt the Oscilloscope Upward for Easier Viewing
35
To Power on the Oscilloscope
36
To Verify Basic Oscilloscope Operation
37
To Clean the Instrument
38
To Clean the Display Monitor Contrast Filter
38
Testing Performance
39
Equipment Required
40
Self-Test Verification
40
Testing Interval
40
Operating Hints
41
Performance Test Procedures
41
Specifications
41
Test Record
41
To Test the DC Calibrator
42
Procedure
42
To Test Input Resistance
44
Procedure
44
To Test Voltage Measurement Accuracy
45
Procedure
45
Figure
46
2 Press Default Setup to Set the Oscilloscope to Default Conditions
49
To Test Offset Accuracy
49
Procedure
49
To Test Bandwidth
51
Equivalent Time Test
51
Real Time Test
53
Ω , 500 Mhz Test
53
To Test Time Measurement Accuracy
54
Equivalent Time Mode Procedure
54
Real-Time Mode Procedure
59
5 Select Acquisition from the Setup Menu
59
See Figure
59
Figure
59
To Test Trigger Sensitivity
61
Internal Trigger Test
61
Procedure-Auxiliary Trigger Test
63
Calibrating and Adjusting
67
Equipment Required
68
Mainframe Cal Factor Memory Error
68
Self Calibration Interval and Hardware Adjustments
68
Calibration Procedures
69
Loading Default Oscilloscope Settings
69
Loading New Software
69
Operating Hints
69
To Check the Power Supply
70
To Check the 715 Hz Auxiliary Output (Probe Compensation Squarewave)
72
To Check the Flat Panel Display (FPD)
73
To Run the Self Calibration
76
Troubleshooting
79
ESD Precautions
80
Keystroke Conventions
80
Safety
80
Tools Required
80
Default Setup
81
To Install the Fan Safety Shield
81
To Troubleshoot the Instrument
82
Primary Trouble Isolation
84
No Display Trouble Isolation
87
Power Supply Trouble Isolation
91
To Check Probe Power Outputs
94
To Check the Keyboard
95
Test Procedure
95
Troubleshooting Procedure
96
To Check the Leds
97
To Check the Motherboard, CPU, and RAM
99
To Check the SVGA Display Board Video Signals
100
To Check the Backlight Inverter Voltages
101
POST Code Listing (AMI Motherboard Only)
102
To Configure the Motherboard Jumpers and Set up the BIOS
107
Motherboard / Floppy Drive Configurations BIOS Setup
107
Configuring the AMI Series 727 Motherboard Jumpers
110
To Configure the AMI Series 727 WINBIOS Parameters
112
Configuring the AMI Series 757 Motherboard for 200 Mhz CPU
115
To Configure the AMI Series 757 WINBIOS Parameters with 1.44 Mbyte Floppy Drive
117
Configuring the AMI Series 757 Motherboard for 300 Mhz CPU
120
To Configure the AMI Series 757 WINBIOS Parameters with 120 Mbyte Floppy Drive
122
To Configure the FIC Series VA-503A Motherboard BIOS Parameters
126
To Troubleshoot the Acquisition System
127
Determining the Acquisition Contact Closure Count
127
Isolating Acquisition Problems
127
To Troubleshoot Attenuator Failures
134
Attenuator Click Test
134
Swapping Attenuators
135
Attenuator Connectivity Test
135
Software Revisions
137
Replacing Assemblies
139
ESD Precautions
140
Tools Required
140
To Return the Instrument to Agilent Technologies for Service
141
To Remove and Replace the Cover
142
To Disconnect and Connect Mylar Flex Cables
143
To Remove and Replace the Autoprobe Assembly
144
To Remove and Replace the Probe Power and Control Assembly
146
To Remove and Replace the Backlight Inverter Board
147
To Remove and Replace the Front Panel Assembly
147
To Remove and Replace the Keyboard and Flat-Panel Display Assemblies
150
To Remove and Replace the Acquisition Board Assembly
152
To Remove and Replace the LAN Interface Board
153
To Remove and Replace the GPIB Interface Board
154
To Remove and Replace the Scope Interface Board and SVGA Display Board
155
To Separate the Scope Interface Board and SVGA Display Board
156
To Remove and Replace the Option 200 Sound Card
157
To Remove and Replace the Hard Disk Drive
158
To Remove and Replace the Floppy Disk Drive
159
To Remove and Replace the Motherboard
159
To Remove and Replace the Power Supply
162
To Remove and Replace the Fan
163
To Remove and Replace the CPU
164
To Remove and Replace RAM Simms or SDRAM Dimms
165
To Remove and Replace an Attenuator
166
To Reset the Attenuator Contact Counter
168
To Remove and Replace an Acquisition Hybrid
170
To Remove the Acquisition Hybrid
170
To Replace the Acquisition Hybrid
171
The Hybrid Connector
172
7 Replaceable Parts
173
Ordering Replaceable Parts
174
Power Cables and Plug Configurations
175
Exploded Views
176
Replaceable Parts List
187
Theory of Operation
195
Block-Level Theory
197
Block-Level Theory
198
Acquisition System
198
Disk Drives
198
Attenuators
198
Motherboard
198
SVGA Display Card
199
GPIB Interface Card
199
Probe Power and Control
199
Attenuator Theory
201
Acquisition Theory
201
Acquisition Board
201
Acquisition Modes
203
Scope Interface Board
203
Declaration of Conformity
205
4
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Agilent Technologies 54835A Specifications
General
Brand
Agilent Technologies
Model
54835A
Category
Test Equipment
Language
English
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