Agilent Technologies 5517B Operation manual

Operating and Service
Manual
This manual applies directly to Agilent Model 5517B/C/D Laser Head
having serial number prefix listed below, unless accompanied by a
"Manual Updating Changes" package indicating otherwise.
SERIAL PREFIX NUMBER: 3745A for 5517B
3744A for 5517C
3741A for 5517D
New Instruments
This manual, with enclosed "Manual Changes" sheet, applies to Agilent
5517B/C/D Laser Heads having serial number prefixes as listed on the
"Manual Change" sheets.
Older Instruments
For serial prefix numbers below those listed above, refer to Section VII for
Manual Changes.
Agilent 5517B/C/D Laser Head

©Copyright Agilent
Technologies, Inc. 1987, 1993,
2000
All Rights Reserved.
Reproduction, adaptation, or
translations without prior
written permission is prohibited,
except as allowed under the
copyright laws.
Printed: August 2000
Printed in USA
Manual part number
05517-90047
Certification and
Warranty
Certification
Agilent Technologies certifies
that this product met its
published specification at the
time of shipment from the
factory. Agilent further certifies
that its calibration
measurements are traceable to
the United States National
Institute of Standards and
Technology (formerly National
Bureau of Standards), to the
extent allowed by the Institute's
calibration facility, and to the
calibration facilities of other
International Standards
Organization members
Warranty
Agilent warrants Agilent
hardware, accessories and
supplies against defects in
materials and workmanship for
a period of one year from date of
shipment. If Agilent receives
notice of such defects during the
warranty period, Agilent will, at
its option, either repair or
replace products which prove to
be defective. Replacement
products may be either new or
like-new.
Agilent warrants that Agilent
software will not fail to execute
its programming instructions,
for the period specified above,
due to defects in material and
workmanship when properly
installed and used. If Agilent
receives notice of such defects
during the warranty period,
Agilent will replace software
media which does not execute its
programming instructions due
to such defects.
For detailed warranty
information, see back matter
Safety Considerations
General
This product and related
documentation must be
reviewed for familiarization
with this safety markings and
instructions before operation.
This product is a safety Class I
instrument (provided with a
protective earth terminal).
Before Applying Power
Verify that the product is set to
match the available line voltage
and the correct fuse is installed.
Refer to instructions in Chapter
1 of the Manual.
Before Cleaning
Disconnect the product from
operating power before
cleaning.
Safety Earth Ground
An uninterruptible safety earth
ground must be provided from
the mains power source to the
product input wiring terminals
or supplied power cable.
Warning Symbols That
May Be Used In This
Book
Instruction manual symbol; the
product will be marked with
this symbol when it is necessary
for the user to refer to the
instruction manual.
Indicates hazardous
voltages.
Indicates earth (ground)
terminal.
Safety Considerations
(contd)
or
Indicates terminal is connected
to chassis when such
connection is not apparent
Indicates Direct current
Indicates Alternating current.
WARNING
BODILY INJURY OR
DEATH MAY RESULT
FROM FAILURE TO
HEED A WARNING DO
NOT PROCEED BEYOND
A WARNING UNTIL THE
INDICATED CONDITIONS
ARE
FULLYUNDERSTOOD
AND MET.
CAUTION
Damage to equipment, or
incorrect measurement data,
may result from failure to heed
a caution Do not proceed
beyond a CAUTION until the
indicated conditions are fully
understood and met
These CAUTION labels are
required by the United States
Center for Devices and
Radiological Health. Failure to
follow their instructions may
result in personal injury
This symbol indicates laser
radiation
For additional safety and
acoustic noise information, see
back matter
Agilent Technologies, Inc 8.CD.L.03.11 97 R1 J CW1FL
Santa Clara Division

5301 Stevens Creek Boulevard
Santa Clara, California 95052-8059
END PRODUCT LASER SAFETY CONSIDERATIONS
The 5517B Laser Head complies with U.S. National Center for Devices and
Radiological Health regulations 21 CFR 1040.10 and 1040.11.
These regulations may also apply to the end product into which the 5517B will be
designed. Care must be taken to insure that the end product complies with all
applicable national and local laser safety regulations.

LASER HEAD SAFETY LABELS

TABLE OF CONTENTS
Section Title Page
I GENERAL INFORMATION........................................................................................ 1-1
1-1. Introduction 1-1
1 -4. Equipment Description 1-1
1-8. Manual Organization 1-2
1 -10. Instruments Covered by this Manual 1-2
1-14. Safety Considerations 1-3
1-16. Equipment Supplied 1-3
1-18. Available Accessories 1-3
1-22. Specifications 1-4
1-24. Recommended Test Equipment 1-5
1-26. Warranty 1-5
1-28. Options 1-6
1-29. Option 910 1-6
1-31. Support Options 1-6
II INSTALLATION............................................................................................................2-1
2-1. Introduction 2-1
2-3. Unpacking, Inspection, and Reshipment 2-1
2-5. Unpacking and Inspection .........................................................................2-1
2-7. Warranty Claims ........................................................................................2-1
2-9. Laser Tube Shipment.................................................................................2-1
2-11. Tagging for Service 2-2
2-13. Packaging for Reshipment 2-2
2-14. Installation 2-2
2-16. System Cabling 2-3
2-19. Power and Signal Connections 2-4
2-21. Grounding Considerations 2-8
2-23. Power Supply Requirements 2-8
2-25. Power Dissipation 2-8
2-27. Fusing 2-8
2-29. Dimensions 2-9
2-31. Mounting and Fixturing 2-10
2-39. Operational Verification Check 2-11
2-41. Operating Environment 2-11
2-42. Storage 2-11
2-43. Environment...............................................................................................2-11

III OPERATION..................................................................................................................3-1
3-1. Introduction 3-1
3-4. Power Application ......................................................................................3-1
3-6. HP 5517B Laser Head Front Panel Controls 3-2
3-8. HP 5517B Laser Head Rear Panel Indicators and Connectors 3-3
3-10. Operating Modes 3-4
3-12. Warmup Time Operating Notes 3-4
3-13. HP 10740A Coupler Based Systems - Manual Monitoring 3-5
3-14. Systems with HP 10745A or HP 10746A Cards - Automatic Monitoring 3-5
3-16. HP 10740A Coupler - Error Signal Information 3-5
3-17. HP 10746A Error Signal Processing 3-5
3-18. HP 10745A Background Information3-6
3-19. Program Modifications 3-6
TABLE OF CONTENTS (Continued)
Section Title Page
IV PERFORMANCE TESTS............................................................................................ 4-1
4-1. Introduction 4-1
4-3. Recommended Test Equipment 4-1
4-5. Test Record 4-1
4-7. HP 5517B Performance Test 4-1
4-9. Input Voltage Check ................................................................................. 4-1
4-11. Laser Power Output Test 4-2
4-13. Procedure 4-2
V ADJUSTMENTS.......................................................................................................... 5-1
5-1. Introduction 5-1
5-3. Safety Considerations 5-1
5-5. Recommended Test Equipment 5-1
5-7. Factory Selected Components 5-1
5-9. Adjustment Procedures 5-1
5-11. Reference Temperature Adjustments 5-2
5-14. reliminary Procedure5-2
5-17. aser Tube Current Adjustment 5-4
VI REPLACEABLE PARTS ............................................................................................ 6-1
6-1. Introduction 6-1
6-3. Reference Designations 6-1
6-5. Replaceable Parts 6-1
6-8. How to Order a Part 6-1
6-10. Parts Identification 6-1
6-14. Contacting Hewlett-Packard 6-2

6-18. Cabinet Parts and Hardware 6-2
VII MANUAL CHANGES.................................................................................................. 7-1
7-1. Introduction 7-1
7-3. Manual Cha nges 7-1
7-6. Older Instruments 7-1
VIII SERVICE .................................................................................................................. 8-1
8-1. Introduction 8-1
8-3. Theory of Operation .................................................................................. 8-1
8-5. Recommended Test Equipment ............................................................... 8-1
8-7. Service Aids............................................................................................... 8-1
8-9. Schematic Diagram Symbols and Reference Designations.................... 8-1
8-11. Cleaning Printed Circuit Boards 8-2
8-14. Safety Considerations .............................................................................. 8-2
8-16. Safety Symbols 8-4
8-18. Before and After Service Product Safety Checks 8-5
8-20. Laser Head Block Diagram Description8-5
8-28. Laser Tuning .............................................................................................8-8
8-31. Warmup Mode Tuning 8-8
8-36. Optical Mode Tuning.................................................................................8-10
8-42. Laser Assembly Optics..............................................................................8-12
8-44. Reference Receiver 8-13
8-46. Shutter Mechanism 8-13
8-48. Assembly/Schematic Locations of HP 5517B Block Diagram Elements 8-13
8-49. Rear Panel LED Indicators 8-13
TABLE OF CONTENTS (Continued)
Section Title .........................................................................................................Page
8-51. built-in Test Aids 8-13
8-54. Assembly Removal Instructions 8-15
8-65. HP 5517B Trouble Isolation 8-1 9
8-66. Quick Tuning Checkout Procedure 8-19
8-70. Testing the Liquid Crystal Switch 8-20
8-73. HP 5517B Trouble Isolation Procedure 8-23
8-75. A1 Connector Board Circuit Theory 8-24
8-78. Power Distribution 8-25
8-82. A1 Connector Board Troubleshooting 8-25
8-84. Rear Panel LED Operational Check 8-25
8-86. A2 High Voltage Power Supply Circuit Theory 8-26
8-88. High Voltage Power Supply Troubleshooting 8-27
8-90. A3 Controller/Reference BD & A4 Sampler BD Circuit Theory 8-28
8-91. Introduction 8-28

8-94. Clock (A) 8-29
8-96. Dividers (B) 8-29
8-98. State Machine (E) 8-30
8-104. Liquid Crystal (D) 8-30
8-108. Photodiode and Amplifier (D) 8-30
8-110. Warm-up Error Amplifier and Comparator 0) 8-31
8-113. Subtracting Sample and Hold (E) 8-31
8-117. Power Amplifier 8-32
8-120. Reference Receiver (L) 8-32
8-124. Line Driver (K) 8-32
8-126. Power-On Reset (POR) (G) 8-32
8-128. Laser Head Power Supply Conditioning (C) 8-32
8-130. A4 Sampler Board 8-32
8-132. A3 Controller/Reference Board Troubleshooting8-32
8-134. Standard Troubleshooting Procedures 8-33
8-136. Digital Troubleshooting 8-33
8-139. Photodiode and Amplifier Troubleshooting 8-37
8-141. Liquid Crystal Troubleshooting 8-38
8-143. Subtracting Sample and Hold Troubleshooting 8-39
8-145. Power Amplifier Troubleshooting 8-40
8-146. Warm-Up Error Amplifier Troubleshooting 8-41
8-148. Power Supply Troubleshooting 8-42
8-150. Reference Receiver Troubleshooting 8-42

Figure 1-1. HP 5517B Laser Head