Agilent 8510XF Service Quick Reference Guide

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Agilent Technologies 8510XF Network Analyzer System

Service Quick Reference Guide

Agilent Part Number: E7340-90013 Printed in USA Print Date: May 2002

Supersedes: June 2001

Notice

Restricted Rights Legend

If software is for use in the performance of a U.S. Government prime contract or subcontract, Software is delivered and licensed as "Commercial computer sofware" as deﬁned in DFAR 252.227-7014 (June 1995), or as a "commercial item" as deﬁned in FAR 2.101(a) or as "Restricted computer software" as deﬁned in FAR52.227-19(June1987) or any equivalentagency regulation or contract clause. Use, duplication or disclosure of Software is subject Agilent Technologies’ standard commercial license terms, and nonDOD Departments and Agencies of the U.S. Government will receive no greater than Restricted Rights as deﬁned FAR 52.227-19(c)(1-2) (June

1987). U.S. Government users will receiveno greater than Limited Rights as deﬁned in FAR 52.227-14 (June 1987) or DFAR 252.227-7015 (b)(2) (November 1995), as applicable in any technical data.

Hewlett-Packard to Agilent Technologies Transition

This documentation supports a product that previously shipped under the Hewlett-Packard company brand name. The brand name has now been changed to Agilent Technologies. The two products are functionally identical, only our name has changed. The document still includes references to Hewlett-Packard products, some of which have been transitioned to Agilent Technologies.

Windows ® is a registered copyright of Microsoft corportation.

8510XF Service Quick Reference Guide

What You’ll Find in This Manual…

Chapter 1 Installation “Preﬂight” Checkout

Chapter 2 Upgrading a Source for 8510XF

Chapter 3 Making 8510XF Adjustments

• Vertical Alignment Adjustment

• Degaussing the Display

• 8360 Series Sources Full User CAL

• Power Level Calibration

❍ Detector Gain Cal ❍ Conversion Loss Cal

Chapter 4 Performance Veriﬁcation

Chapter 5 System Level Servicing and Troubleshooting

• Theory of Operation

• Troubleshooting Block Diagrams

8510XF Service Quick Reference Guide

iii

Warranty

Certiﬁcation

DOCUMENTATION WARRANTY

Agilent Technologies certifies that this product met its published specifications at the time of shipment from the factory. Agilent Technologies further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology (NIST, formerly NBS), to the extent allowed by the Institute’s calibration facility, and to the calibration facilities of other International Standards Organization members.

THE MATERIAL CONTAINED IN THIS DOCUMENT IS PROVIDED "AS IS," AND IS SUBJECT TO BEING CHANGED, WITHOUT NOTICE, IN FUTURE EDITIONS. FURTHER, TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, AGILENT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED WITH REGARD TO THIS MANUAL AND ANY INFORMATIONCONTAINEDHEREIN,INCLUDINGBUTNOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. AGILENT SHALL NOT BE LIABLE FOR ERRORS OR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES IN CONNECTION WITH THE FURNISHING, USE, OR PERFORMANCE OF THIS DOCUMENT OR ANY INFORMATION CONTAINED HEREIN. SHOULD AGILENT AND THE USER HAVE A SEPARATE WRITTEN AGREEMENT WITH WARRANTY TERMS COVERING THE MATERIAL IN THIS DOCUMENT THAT CONFLICT WITH THESE TERMS, THE WARRANTY TERMS IN THE SEPARATE AGREEMENT WILL CONTROL.

Assistance Product maintenance agreements and other customer assistance agreements

are available for Agilent Technologies products. For assistance, call your local Agilent Technologies ofﬁce (refer to

“Contacting Agilent” on page v).

8510XF Service Quick Reference Guide

Contacting Agilent

Online assistance: www.agilent.com/find/assist United States

(tel) 1 800 452 4844

New Zealand

(tel) 0 800 738 378 (fax) (+64) 4 495 8950

Malaysia

(tel) 1 800 828 848 (fax) 1 800 801 664

Taiwan

(tel) 0800-047-866 (fax) (886) 2 25456723

Latin America

(tel) (305) 269 7500 (fax) (305) 269 7599

Japan

(tel) (+81) 426 56 7832 (fax) (+81) 426 56 7840

Philippines

(tel) (632) 8426802 (tel) (

PLDT subscriber only):

1 800 16510170

(fax) (632) 8426809 (fax) (

PLDT subscriber only):

1 800 16510288

People’s Republic of China

(tel) (preferred):

800-810-0189

(tel) (alternate):

10800-650-0021 (fax) 10800-650-0121

Canada

(tel) 1 877 894 4414 (fax) (905) 282-6495

Australia

(tel) 1 800 629 485 (fax) (+61) 3 9210 5947

Thailand

(tel) outside Bangkok:

(088) 226 008

(tel) within Bangkok:

(662) 661 3999 (fax) (66) 1 661 3714

India

(tel) 1-600-11-2929 (fax) 000-800-650-1101

Europe

(tel) (+31) 20 547 2323 (fax) (+31) 20 547 2390

Singapore

(tel) 1 800 375 8100 (fax) (65) 836 0252

Hong Kong

(tel) 800 930 871 (fax) (852) 2506 9233

8510XF Service Quick Reference Guide

Safety and Regulatory Information

Review this product and related documentation to familiarize yourself with safety markings and instructions before you operate the instrument. This product has been designed and tested in accordance with international standards.

WARNING The WARNING notice denotes a hazard. It calls attention to a

procedure, practice, or the like, that, if not correctly performed or adhered to, could result in personal injury. Do not proceed beyond a WARNING notice until the indicated conditions are fully understood and met.

CAUTION The CAUTION notice denotes a hazard. It calls attention to an operating

procedure, practice, or the like, which, if not correctly performed or adhered to, could result in damage to the product or loss of important data. Do not proceed beyond a CAUTION notice until the indicated conditions are fully understood and met.

Instrument Markings

When you see this symbol on your instrument, you should refer to the instrument’s instruction manual for important information.

This symbol indicates hazardous voltages.

The laser radiation symbol is marked on products that have a laser output.

This symbol indicates that the instrument requires alternating current (ac) input.

The CE mark is a registered trademark of the European Community. If it is accompanied by a year, it indicates the year the design was proven.

The C-Tick mark is a registered trademark of the Australian Spectrum Agency.

The CSA mark is a registered trademark of the Canadian Standards Association.

8510XF Service Quick Reference Guide

1SM1-A This text indicates that the instrument is an Industrial Scientiﬁc and

Medical Group 1 Class A product (CISPER 11, Clause 4). This ISM device complies with Canadian ICES-001.

Cet appareil ISM est conforme a la norme NMB du Canada. This symbol indicates that the power line switch is ON.

This symbol indicates that the power line switch is OFF or in STANDBY position.

Safety Earth Ground

This is a Safety Class I product (provided with a protective earthing terminal). An uninterruptible safety earth ground must be provided from the main power source to the product input wiring terminals, power cord, or supplied power cord set. Whenever it is likely that the protection has been impaired, the product must be made inoperative and secured against any unintended operation.

BeforeApplying Power Verify that the product is conﬁgured to match the available main power

source as described in the input power conﬁguration instructions in this manual. If this product is to be powered by autotransformer, make sure the common terminal is connected to the neutral (grounded) side of the ac power supply.

8510XF Service Quick Reference Guide

vii

Typeface Conventions

Italics

• Used to emphasize important information:

Use this software

only

with the xxxxxX system.

• Used for the title of a publication:

Refer to the

xxxxxX System-Level User’s Guide

• Used to indicate a variable:

Type

LOAD BIN

Instrument Display • Used to show on-screen prompts and messages that you will see on the

display of an instrument:

The xxxxxX will display the message

[Keycap] • Used for labeled keys on the front panel of an instrument or on a

computer keyboard:

Press

[Return].

{Softkey} • Used for simulated keys that appear on an instrument display:

Press

{Prior Menu}.

User Entry • Used to indicate text that you will enter using the computer keyboard;

text shown in this typeface must be typed

Type

LOAD PARMFILE

filename

CAL1 SAVED.

exactly

as printed:

Path Name

Computer Display

• Used for examples of programming code:

#endif // ifndef NO_CLASS

• Used for a subdirectory name or ﬁle path:

Edit the ﬁle

usr/local/bin/sample.txt

• Used to show messages, prompts, and window labels that appear on a

computer monitor:

The

Edit Parameterswindow will appear on the screen.

• Used for menus, lists, dialog boxes, and button boxes on a computer

monitor from which you make selections using the mouse or keyboard:

Double-click

EXIT to quit the program.

viii

8510XF Service Quick Reference Guide

Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii

What You’ll Find in This Manual… . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv

Certiﬁcation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv

DOCUMENTATION WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . iv

Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv

Contacting Agilent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

Safety and Regulatory Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi

Safety Earth Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Before Applying Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Typeface Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii

1. Installation “Preflight” Checkout

System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

System Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Rack Diagram Conﬁgured for Coaxial Measurements . . . . . . . . . . 1-2

Rack Diagram Conﬁgured for Wafer-Probe Measurements . . . . . . . 1-3

Front View Cabling Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Rear View Cabling (rack mounted source) . . . . . . . . . . . . . . . . . . . . 1-5

Rear View Cabling (table mounted source) . . . . . . . . . . . . . . . . . . . 1-6

8510XF Option 006 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

2. Upgrading a Source for 8510XF

3. Making 8510XF Adjustments

Procedure 1. Vertical Alignment Adjustment . . . . . . . . . . . . . . . . . . 3-3

Procedure 2. DeGaussing (Demagnetizing) the Display . . . . . . . . . 3-4

Procedure 3. 8360 Series Sources Full User CAL . . . . . . . . . . . . . . 3-5

Procedure 3A. 8360 Series Sources Modulator Offset and Gain

Adjustment (8510XF RF source only) . . . . . . . . . . . . . . . . . . . . 3-5

Procedure 4. Power Level Calibration . . . . . . . . . . . . . . . . . . . . . . . 3-6

4. Performance Verification

Verification Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

When to Verify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Materials Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Calibration and Frequency Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Verification Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

General Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Software Conﬁguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Verification Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Low Band Veriﬁcation (< 50 GHz) . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

8510XF Service Quick Reference Guide Contents ix

High Band Veriﬁcation (> 50 GHz) . . . . . . . . . . . . . . . . . . . . . . . . 4-10

CW Frequency Accuracy Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

Materials Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

Performance Test Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

5. System Level Servicing & Troubleshooting

Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Millimeter Wave Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Frequency Bands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

8510XF Firmware Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Hardware States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

Instrument States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

Power Level Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

Test Plots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

x 8510XF Service Quick Reference Guide

1 Installation “Preﬂight” Checkout

System Overview The 8510XF network analyzer system has been designed to measure

broadband devices to 110 GHz, on-wafer or coax, fully calibrated, in a single frequency sweep.

Single RF connection to 110 GHz

The 8510XF system provides frequency coverage from 45 MHz to 110 GHz in a single sweep with a single connection.

Millimeter-wave measurements in 1.0 mm coax

With a single connection, fully error-corrected measurements to 110 GHz are made in 1.0 mm coax. Making millimeter-wave measurements in

1.0 mm coax delivers uncompromised performance and improved productivity compared to waveguide.

Convenient millimeter-wave on-wafer measurements

The 8510XF system is designed for convenient on-wafer measurements using the 1.0 mm coax connector to interface with the 1.0 mm wafer probe.

Broadband calibration with built-in ﬁrmware

The built-in ﬁrmware of the 8510XF system enables you to perform a single calibration from 45 MHz to 110 GHz, either in coax or on-wafer.

8510XF Service Quick Reference Guide

1-1

Rack Diagram Conﬁgured for Coaxial Measurements

Installation “Preflight” Checkout

System Diagrams

Figure 1-1 Rack diagram conﬁgured for coaxial measurements

1-2

8510XF Service Quick Reference Guide

Rack Diagram Conﬁgured for Wafer-Probe Measurements

Installation “Preflight” Checkout

System Diagrams

Figure 1-2 Rack diagram conﬁgured for wafer-probe measurements

8510XF Service Quick Reference Guide

1-3

Front View Cabling Diagram

Installation “Preflight” Checkout

System Diagrams

3.5 mm

Figure 1-3 Front view wiring diagram

Figure 1-4 Test head connectors

1-4

8510XF Service Quick Reference Guide

2.4 mm

SMA

testhead.cdr

Rear View Cabling (rack mounted source)

Installation “Preflight” Checkout

System Diagrams

Figure 1-5 Rear view wiring diagram (rack mounted source)

8510XF Service Quick Reference Guide

1-5

Rear View Cabling (table mounted source)

Installation “Preflight” Checkout

System Diagrams

Figure 1-6 Rear view wiring diagram (table mounted source)

1-6

8510XF Service Quick Reference Guide

Installation “Preflight” Checkout

8510XF Option 006

8510XF Option 006 provides the capability to add an additional 8510 series test set provided Option 001 is installed in the test set. Option 006 includes:

• Coupler and ampliﬁer added to millimeter-wave controller

• 2.4 mm termination added to rear panel

Figure 1-7 8510XF Option 006

The conﬁguration for the 8510XF Option 006 is as shown in Figure 1-8.

Figure 1-8 Multiple test set example application

8510XF Service Quick Reference Guide

1-7

Installation “Preflight” Checkout

8510XF Option 006

1-8

8510XF Service Quick Reference Guide

2 Upgrading a Source for 8510XF

All 8360 series sources are compatible, but only the 83621A/B or 83651A/B are recommended in order to insure full functionality of the 8510XF.

Table 2-1 shows the upgrade options required.

NOTE 83651/21A and 83650/20A/B will also work for upgraded 8510XF systems

as long as it has test port ﬂatness correction modiﬁcation or capability, rear panel output (Option 004), and 1 Hz frequency resolution (Option 008) installed.

Table 2-1 Source Upgrades

Model

83620B/21B 83650A/B 83651A/B

83621A 83631A

83620A 83623A 83624A 83630A 83640A

1. Fully compatible at time of shipment.

2. Can be used for 8510XF LO source when upgraded and includes Options 004 and 008.

3. Includes installation.

4. 83623L, 30L, 40L and 50L, with Option 004 and 008, will also work as LO source, but do not have

2 2

2 24 2 2 2

modulation capability (83623L maximum power at highest frequency is + 15 dBm).

Maximum Power at Highest Frequency

+ 13 dBm + 2.5 dBm + 2.5 dBm

+13 dBm + 10 dBm

+ 13 dBm + 17 dBm + 20 dBm + 10 dBm + 26 dBm

Serial Preﬁx

All No modiﬁcation required.

< 3103A 3103A 3104A to 3111A

≥ 3112A

≤ 3103A

3104A to 3111A

≥ 3112A ≥ 3145A

Required for Test Port Flatness Correction

83601A upgrade kit. 08360-60167 ﬁrmware kit 08360-60201 ﬁrmware kit No modiﬁcation required.

08360-60167 ﬁrmware kit 08360-60201 ﬁrmware kit No modiﬁcation required. No modiﬁcation required.

1 1

8510XF Service Quick Reference Guide

2-1

Upgrading a Source for 8510XF

2-2

8510XF Service Quick Reference Guide

3 Making 8510XF Adjustments

NOTE This chapter covers both the CRT and LCD displays. Some display-related

adjustments apply only to instruments with CRT display.

The following table provides adjustments most frequently needed for 8510XF system service. Most of the 8510XF is self-adjusting except for the following:

Table 3-1 Frequently used 8510XF adjustments

Procedure 1 Vertical Alignment Adjustment

2 Degausing (Demagnetizing) the 85101

3 8360 Series Sources Full User CAL 4 Power Level Calibration Insures level power at the test ports Leveling DAC/ EEPROM, A16,

1. Reference subsequent sections in this document.

2. These adjustments apply to a CRT-based display only.

Title Adjustment Function Assembly Adjusted

display

Aligns softkey labels and mechanical softkey buttons.

Demagnetize the display.

A11

and Leveling Compensation Board, A7

8510XF Service Quick Reference Guide

3-1

Making 8510XF Adjustments

Table 3-2 Equipment required for 8510XF adjustments

Equipment Recommended Model Substitute

CRT demagnetizer or bulk tape

eraser

Radio Shack Model 44-233 Techno Tool (USA) or Nietronix (Europe) 692PR022

1 to 2 amp pencil sharpening motor (base held

near CRT with motor on), or electric drill Flat-head screwdriver (small) At least 2 inches long, non-conductive none 10 dB pad 8493C 8360 series source with built-in attenuator 85102A/B and test set adjust software Part Number 08510-10024 Rev. A.01.10 Power Meter 437B power meter 438A or EPM-441A power meter Power Sensors:

N/A

Only available as a special

N/A

50 GHz V band W band

8481A or 8482A 8487A power sensor V8486A power sensor

W8486A power sensor Adapter, 2.4 to 1.0 mm (f-f) 85059A K01 Adapter, V-band to 1.0 mm (f-f) V281C Adapter, W-band to 1.0 mm (f-f) W281C Laptop, personal computer or

controller

2, 3

8510XF port power level calibration

9000 series 200 or larger

08510-100xx check software

BASIC 6.3 or higher

E2060B Agilent VEE 4.0 Installation E2120-13605

1. These adjustments apply to a CRT based display only.

2. Minimum 4 megabytes of available memory after BASIC has been loaded.

3. With BASIC for Windows and PCMCIA-GPIB card.

4. Includes language extensions and drivers.

3-2

8510XF Service Quick Reference Guide

Making 8510XF Adjustments

Procedure 1. Vertical Alignment Adjustment

NOTE This procedure applies to a CRT based display only.

NOTE The vertical alignment can be affected by magnetic interference. Before

adjusting the vertical position, be sure the analyzer is in a non-magnetic environment and the CRT is degaussed.

Perform the following steps to adjust the vertical alignment.

1. Switch on the system and allow it to warm up for 60 minutes.

2. Remove the side panel nearest the display to access the vertical position and focus controls. See Figure 3-1.

3. Insert a narrow, non-conductive, ﬂathead screwdriver (2 or more inches long) into the vertical position hole.

4. Adjust the control until the softkey labels align with the softkeys.

Figure 3-1 Vertical adjustment location

8510XF Service Quick Reference Guide

3-3

Making 8510XF Adjustments

Procedure 2. DeGaussing (Demagnetizing) the Display

NOTE This procedure applies to a CRT based display only.

Use any CRT demagnetizer or bulk tape eraser for this procedure. The color monitor display is very susceptible to external magnetic ﬁelds, such as metal frame tables, welded cabinets, the earth, unshielded motors, and other sources. The usual symptom is discoloration or slight dimming of the display (usually near a top corner of the CRT). In extreme cases, a total color shift may be observed. For example, a trace that was red may shift to green. This shift does not suggest a problem with the display. It is characteristic of color displays needing demagnetizing. In countries using 50 Hz, some 10 Hz jitter may be observed. If this problem is observed, remove the device causing the magnetic ﬁeld.

If the display becomes magnetized or if color purity is a problem, cycle the power several times. Leave the instrument off for at least 15 seconds before switching power on. This will trigger the automatic degaussing circuit in the display. If this is insufﬁcient to restore color purity, use a commercially available demagnetizer (either a CRTdemagnetizer or a bulk tape eraser). In

an emergency, you can use a running electric drill or a pencil sharpener that draws 1/2 to 2 amps through its AC motor winding. Follow the

manufacturer’s instructions keeping in mind that it is imperative when demagnetizing a display that the degausser is kept farther than 4 inches (10 cm) from the face of the CRT.Generally, degaussing is done with a slow rotary motion of the degausser, moving it in a circle of increasing radius while simultaneously moving away from the CRT. The following ﬁgure illustrates the motion for degaussing the display.

CAUTION Applying an excessively strong magnetic ﬁeld to the CRT face can

permanently destroy the CRT.

Figure 3-2 Using a Degausser on the display

3-4

8510XF Service Quick Reference Guide

Making 8510XF Adjustments

Procedure 3. 8360 Series Sources Full User CAL

NOTE If the 8360 series source does not have a front panel, use the 8360 source

Full User CAL initiates a full synthesizer calibration. The calibration performed is instrument state dependent. For example, if the synthesizer is in ramp sweep mode, a sweep span and an auto track calibration are performed. If the synthesizer has amplitude modulation active on an SW signal, then RF peaking and AM bandwidth calibrations are performed. For 8510XF purposes, only ramp-sweep mode is needed.

Perform the following calibration procedure:

1. On the 8360, press

2. Select {Full User CAL}. Wait for the calibration to complete (usually less than a minute).

Attenuation needed

If the 8360 series source does not have a built-in attenuator, you will be prompted to connect a 10 dB attenuator to the 8360 series RF output port. Auto track is done as part of Full User CAL.

front panel emulator in the 8510C network analyzer (refer to the “Service Program” section in the 8510C On-Site Service Manual). For the RF source calibration, the front-panel emulator will default to GPIB address 19. For the LO source calibration, change the GPIB address in the front panel emulator to 18.

[PRESET] [USER CAL].

Procedure 3A. 8360 Series Sources Modulator Offset and Gain Adjustment (8510XF RF source only)

Modulator offset and gain adjustment optimizes the modulator in the 8360 series source for maximum performance. This is necessary since the RF source is part of the 8510XF level control (refer to Figure 3-3 on page 3-6). This should be done before the conversion loss calibration is performed on systems with older sources or sources which may be out of calibration.

Adjust the RF source using the procedure “Modulator Offset and Gain Adjustment” in the 8360 Series Synthesized Sweeper Service Guide’s “Adjustments” chapter.

8510XF Service Quick Reference Guide

3-5

Making 8510XF Adjustments

Procedure 4. Power Level Calibration

Power level calibration insures leveled power at ports 1 and 2. To level the power, we sense the IF signal which correlates to RF level. Since the translation function is frequency dependent, we need to measure the translation function using the conversion loss calibration procedure. The power level calibration is accomplished using IF leveling as shown in the following circuit.

Figure 3-3 8510XF level control

3-6

8510XF Service Quick Reference Guide

Making 8510XF Adjustments

Detector Gain Cal Before we begin the conversion loss calibration, we must perform a detector

gain calibration to compensate for the imprecision of the detector board (E7340-60015 A7). Perform the following procedure for the detector gain calibration:

1. Under the

2. Press

3. Press

4. Press

5. Press

Auxiliary Menus, press [System] hard key.

{More} softkey. {RF Power Conﬁg} softkey. {More} softkey. {Reset Det Gain Cal} softkey.

6. Follow the on-screen instructions until cal is completed.

CAUTION If the operating system is reloaded, it is necessary to perform the detector

gain calibration.

NOTE It is recommended that this 5-minute calibration be performed once a month.

Additionally, a CW frequency accuracy test should be performed prior to doing the conversion loss and power level ﬂatness calibrations. Refer to

“CW Frequency Accuracy Test” on page 12.

Conversion Loss

Calibration

After performing a detector gain cal, you will be ready to perform the RF to IF conversion loss calibration. This calibration provides the absolute power level information at 25/50 MHz intervals over the entire frequency range of the E7340/50A to compensate for conversion losses in the E7340/50A so that ports 1 and 2 will be power leveled.

a. The external controller with its software changes the 8510XF CW

frequency and reads the power meter.

b. The entire frequency range is stepped in 25/50 MHz increments at

approximately 2200 points per port (25 MHz steps from 45 MHz to 18 GHz, and 50 MHz steps from 18 GHz to 110 GHz).

c. The result is stored in the millimeter controller EEPROM memory

board (A16) after all bands and heads are measured and should be valid for one year or until a test head is repaired or replaced.

8510XF Service Quick Reference Guide

3-7

Making 8510XF Adjustments

To perform the conversion loss calibration:

Use the following procedure to perform the conversion loss calibration.

1. Load the BASIC, version 6.3 or greater.

2. Calibrate and zero the power sensor, and enter all cal factors versus frequency of the 3 or 4 sensors into the text ﬁle of the conversion loss calibration program.

3. Connect the power sensor to the left or right test head and press

[ENTER].

4. Create a power sensor cal factor test ﬁle. Using MS Windows Notepad, enter the following values in the respective columns:

Column Entry

First Frequency (GHz) Second Cal Factor Third Sensor #3

Save this ﬁle as

XFPWRCAL.PMC, and in the same directory as your

conversion loss cal program.

5. Load

6. Press

xfpwcal.bas, and press [ENTER].

{Run}.

7. Select one of the following frequency ranges:

Selection Frequency Range

1 0.045 to 110 GHz 2 2 to 110 GHz 3 0.045 to 85 GHz 4 2 to 85 GHz

8. Select (1) for the left test-head, or (2) for the right test-head.

9. Enter the serial number of the test head up to eight digits.

10. Approximately 20 frequencies will be used to check the 8510XF power control. These frequencies and the corresponding levels will be displayed if all is okay. If not, the display will have an error message which indicates that the 8510XF leveling loop must be corrected.

NOTE Refer to Performance Veriﬁcation, page 4-1, for details on the types of

computers and software needed to run the Performance Veriﬁcation and conversion loss calibration programs.

3-8

8510XF Service Quick Reference Guide

4 Performance Veriﬁcation

Veriﬁcation Overview

NOTE The veriﬁcation procedures in this chapter work for all 8510 and 8510XF

hardware conﬁgurations by substituting the proper 8510 source, test set, accessories, and millimeter wave controller.

Performance veriﬁcation software Rev. A.05.00 or greater will be available only in DOS format, and will work with laptops or PCs that have the required accessories installed. Refer to “Materials Required” on page 4-2.

When to Verify After installation of the system is complete, a performance veriﬁcation is

necessary to assure proper system operation. This initial veriﬁcation is included with the installation.

After the initial veriﬁcation, the veriﬁcation should be repeated once a year. This recommended interval assumes that Agilent cables are used with the system.

If non-Agilent cables, adaptors, or other ﬁxtures are used, the veriﬁcation schedule must be determined by the user, as the characteristics of these devices are unknown. In establishing a veriﬁcation schedule, the following factors should be considered:

• Frequency of use

• Amount of cable movement

• Amount of drift occurring between prior veriﬁcations

NOTE Performance veriﬁcation of a system performed at long intervals is not to be

confused with measurement calibration. Measurement calibration typically is performed on a daily basis, or when measurement setup or conditions have changed.

8510XF Service Quick Reference Guide

4-1

Performance Verification

Materials Required The following materials are required to run the tests:

• 8510XF system with accessories

• 85059A 1.0 mm Precision Calibration and Veriﬁcation Kit

• PC-based, 8510 Speciﬁcation and Performance Veriﬁcation Software

(Rev. A.05.00 or greater; p/n 08510-10033)

• Laptop or PC running BASIC for Windows (3.1/95/NT)

(Rev. 6.3 or greater)

• GPIB Card for PCs (National Instruments or HP)

• PCMCIA Card for Omnibook or laptop

• GPIB cable from PC to 8510XF

Calibration and Frequency Ranges

Table 4-1 Calibration storage locations

The 8510XF requires separate veriﬁcations for frequencies below and above 50 GHz (see on “Frequency ranges” on page 4-3).

A special two-band calibration procedure is required for the performance veriﬁcation of the 8510XF system (a measurement calibration is not sufﬁcient). There are up to three different calibrations and corresponding frequency ranges required, which are stored in suggested locations in the 8510 analyzer (Refer to Table 4-1). For more information refer to the section on “Frequency ranges” on page 4-3. The parameters for these calibrations are set up automatically on the analyzer by the performance veriﬁcation software.

File Location Name:

Cal Set 1 1-50 GHz Cal Set 2 45 MHz Cal Set 3 50-110 GHz

1. This calibration is for Option 005 systems only.

2. The frequency for standard systems is 2-50 GHz.

3. The frequency range shown is for the E7352A system only. The E7342A

system’s frequency range will be: 50-85 GHz.

Frequency Range of Data Stored:

(2-50 GHz)

4-2

8510XF Service Quick Reference Guide

Performance Verification

Frequency ranges

For most of the menu items in the software, there are two or more selections that pertain to the 8510XF. These menu selections are differentiated by:

A. The frequency range of the millimeter wave subsystem

❍ E7352A: 110 GHz subsystem ❍ E7342A: 85 GHz subsystem ❍ Option 005: 45 MHz to 2 GHz

B. The portion of the subsystem’s frequency range that is being veriﬁed (the ranges above and below 50 GHz are veriﬁed separately).

The menu selections are broken down in Tables 4-2 and 4-3, below.

Table 4-2 System hardware conﬁguration (E7352A -- 110 GHz System)

Hardware Selection (<50 GHz Range) Selection (>50 GHz Range)

Network Analyzer 8510C -- Vector Network Analyzer 8510C -- Vector Network Analyzer Test Set E7352A -- 1.0 mm Subsystem (2-50 GHz)

E7352A005 -- 1.0 mm Subsystem (45MHz-50GHz) Source 8365xXF -- Synthesizer (45 MHz-50 GHz) 836xxXF -- Multiplied Synth. (above 50 GHz) Calibration Kit

Calibration Technique

Test Port Cables DIRECTXF -- for 8510XF veriﬁcation (1.0 mm-1.0 mm) DIRECTXF -- for 8510XF veriﬁcation (1.0 mm-1.0 mm) Veriﬁcation Kit 85059AOV -- 1.0 mm (45 MHz-50 GHz) 85059AOV110 -- 1.0 mm (above 50 GHz)

1. The 85059A --1.0 mm (45MHz-50GHz) [Use w/ 8517A/B] selection is not used for the 8510XF Performance Veriﬁcation.

85059A -- 1.0 mm (45 MHz-50 GHz) [Use w/

E7342A/52A]

BL -- Broadband Load Cal OS -- Offset Short Cal

E7352A110 -- 1.0 mm (50 GHz-110 GHz)

85059A110 -- 1.0 mm (50 GHz-110 GHz)

Table 4-3 System hardware conﬁguration (E7342A -- 85 GHz System)

Hardware Selection (<50 GHz Range) Selection (>50 GHz Range)

Network Analyzer 8510C -- Vector Network Analyzer 8510C -- Vector Network Analyzer Test Set E7342A -- 1.0 mm Subsystem (2-50 GHz)

E7342A005 -- 1.0 mm Subsystem (45 MHz-50GHz) Source 8365xXF -- Synthesizer (45 MHz-50 GHz) 836xxXF --

Calibration Kit

85059A -- 1.0 mm (45 MHz-50 GHz) [Use w/

E7342A/52A]

E7342A85 -- 1.0 mm (50 GHz-85 GHz)

Synth. (above 50 GHz) 85059A85 -- 1.0 mm (50 GHz-85 GHz)

Calibration Technique

1. The 85059A --1.0 mm (45MHz-50GHz) [Use w/ 8517A/B] selection is not used for the 8510XF Performance Veriﬁcation.

BL -- Broadband Load Cal OS -- Offset Short Cal

8510XF Service Quick Reference Guide

4-3

Performance Verification

Verification Setup

Veriﬁcation Setup

General Preparation Prepare for performance veriﬁcation by completing the following steps:

1. Measure the environment temperature and humidity. The temperature must be between +20 cannot vary by more than 1

2. Perform a good installation “preﬂight” checkout on the 8510XF system.

3. Power on the system components in the following order: a. Sources b. Millimeter wave controller c. 8510XF

°C and +26 °C. Additionally, the temperature

°C after calibration.

d. Controller (PC or laptop)

4. Remember to allow at least one hour for warm up of the components.

Software Installation In order to verify performance, you must ﬁrst install BASIC for Windows

and the 8510C Speciﬁcation and Performance Veriﬁcation software on a PC (or controller).

NOTE This manual documents the use of the veriﬁcation software on a PC. Use of

the software on a controller is not documented.

The PC must have an INTEL 486 processor or higher,and must have at least eight megabytes of memory available. The PC must also have an GPIB card in order to communicate with the 8510XF.

1. Install BASIC for Windows (Revision 6.3 or later) on the PC following the instructions on the ﬁrst BASIC disk. The program will guide you through the installation process. (For more detailed information, refer to BASIC for Windows, Installing and Using Guide.) If you are installing Revision 7.1 or later, install the Legacy Version.

2. Install the speciﬁcation and performance veriﬁcation software by following the instructions on the disk label. The installation program will lead you through the installation. In the process, a new program group will be created, which includes the “Spec8510” icon.

4-4

8510XF Service Quick Reference Guide

Performance Verification

Verification Setup

NOTE Rev. A.05.00 or greater of the performance veriﬁcation software is

backwards compatible. So, it is acceptable to replace the older version you have on the PC.

3. Run the program by clicking on the “Spec8510” icon or selecting:

Programs, 8510, Spec8510. The following warning messages will be

displayed:

A validBasicfor Windows GPIBdriverfor your board (if any)has not been loaded. You can run the Speciﬁcations and Uncertainty portions of the 8510 software but can not run the Veriﬁcation portion as this requires communication. Press CONTINUE to load and run the 8510 software without GPIB or:

To load the correct driver EDIT this program and Remove the “!” from in front of the LOAD statement for your GPIB board.

After editing, type RE-STORE “AUTOST” to store the modiﬁed program. Then, close this window and re-select the Speciﬁcations and Veriﬁcation icon to re-run the program. The 8510 software should now load and run.

4. Edit the AUTOST program according to the instructions in the warning message. (However, if you do not want to run the veriﬁcation portion of the software, you can skip this step by selecting

CONTINUE.)

NOTE For additional information on running the system speciﬁcations, system

uncertainty, and edit system speciﬁcations portions of the program, refer to the “Performance Veriﬁcation and Speciﬁcations” chapter in the 8510C On-Site Service Manual.

Start,

5. After editing and storing the

AUTOST ﬁle, exit the program by closing the

window and then restart the 8510 Speciﬁcation and Performance Veriﬁcation Program.

Software Conﬁguration

NOTE Once the Speciﬁcations and Veriﬁcation Software is running, there is no

functional difference between operation on a PC and operation on a controller.

1. Verify the GPIB cable is connected from the PC to the GPIB bus (also referred to as the public bus) on the analyzer.

2. After the program is started, the program title (8510 Speciﬁcations and Performance Veriﬁcation Software) and copyright notices are displayed. Select

RESUME.

8510XF Service Quick Reference Guide

4-5

Performance Verification

Verification Setup

3. A screen prompt will give you the opportunity to set the date and time. Press the

[Y] key on the PC to skip this step, or press [N] to set the date

and time.

4. The program loads the System Conﬁguration ﬁle, and displays the System Hardware Conﬁguration Menu. Use this menu to specify the equipment you are using, and the frequency range you are verifying (refer to “Frequency ranges” on page 4-3).

To set up for the ﬁrst performance veriﬁcation, select the proper hardware setup for Low Band Veriﬁcation (< 50 GHz) using Table 4-2

on page 4-3 for the E7352A 110 GHz system, or Table 4-3 on page 4-3

for the E7342A 85 GHz system. a. Select

menu item.

b. Use the up and down arrow keys on the PC to advance from one

menu item to another.

c. Select

5. The main menu is displayed (see Table 4-4).

Table 4-4 Main menu

Softkey Description

System Conﬁg System Hardware and Software Conﬁguration Menu System Specs System Spec Table Menu System Uncert System Uncertainty & Dynamic Accuracy Plot/Table Menu Edit Specs Edit the System Speciﬁcations Verify System System Performance Veriﬁcation Menu Quit Progam Quit this Program

NEXT or PREVIOUS to step through the list of selections for each

DONE when you have made a selection for each menu item.

4-6

8510XF Service Quick Reference Guide

Printer selection

1. From the Main Menu (choosing printer options):

Performance Verification

Verification Setup

a. Select b. Select c. Select

System conﬁg. Software Conﬁg. Printer Connected to:

2. Select printer output choice (refer to Table 4-5)

Table 4-5 Printer table of selections

Printer Connected To:

GPIB WIN Printer LPT1 LPT2

File

1. Windows default printer

2. Under Printer Redirection (File): Verify directory path exists before entering name of path

3. Select

Done and Previous Menu to return to Main Menu.

8510XF Service Quick Reference Guide

4-7

Performance Verification

Verification Procedures

Veriﬁcation Procedures

Low Band Veriﬁcation (< 50 GHz)

The following steps assume the hardware conﬁguration has been previously setup for Low Band Veriﬁcation (< 50 GHz) in step 4 on page 4-6 under Software Conﬁguration.

1. From the Main Menu select Veriﬁcation Menu.

2. Select

3. Select for frequencies <50 GHz. See Table 4-1 on page 4-2 for the calibrations required and suggested calibration storage locations (also refer to the “Two-Band Calibration Procedure for 8510XF Performance Veriﬁcation” art foldout at the end of this chapter).

a. Install the 1.0 mm female to female cable (8.8 cm, part number

b. A full two-port calibration is required. A table of calibration

Serial Numbers to enter serial numbers of system and components. System Cal and follow the program prompts to calibrate the system

11500-60001) onto the right test head (port 2) prior to calibration. This cable is part of the 85059A 1.0 mm Precision Calibration and Veriﬁcation Kit and is considered to be a test port cable.

standards required for each frequency range can be found in the 85059A 1.0 mm precision calibration and veriﬁcation kit manual, or on the art foldout at the end of this chapter.

VerifySystem to go to the System Performance

CAUTION Do not remove this test port cable once the Calibration/Veriﬁcation process

has begun. If the test port cable becomes loose or is removed during the calibration/veriﬁcation process, the calibration is invalid.

CAUTION Do not pull on the connectors on the ends of the test port cable—this will

damage the cable. Avoid damaging the cable once it is connected to port 2 by carefully making the thru connection between the two test heads. This is best done by placing the two test heads on a smooth surface and gently sliding the right test head (port 2) towards the left test head (port 1).

4-8

8510XF Service Quick Reference Guide

Performance Verification

Verification Procedures

c. To make the thru connection, gently slide the right test (port 2)

towards the left test head (port 1) a little bit at a time, while turning the threaded ring on the left head test port connector by hand onto the cable attached to the right test head. Do not use the threaded ring on the test port connector to pull the cable into the connector. Repeat this process until the cable is ﬁrmly seated into port 1, then make the threaded ring barely ﬁnger tight. Finally use the torque wrench on the port 1 threaded ring and a backup wrench on the cable to tighten the connection.

4. Select

Select Standard to go to the Standard Selection Menu.

5. To verify the system, use the Veriﬁcation Standards provided with the 85059A 1.0 mm Precision Calibration and Veriﬁcation Kit (refer to

Table 4-6). Using the menu select the veriﬁcation standard and enter the

standard’sserial number. The veriﬁcation standards may be measured in any order.

Table 4-6 Veriﬁcation standards from 1.0 mm calibration and veriﬁcation kit

Type of Standard Part Number

Mismatched Thru Adapter 85059-60016 Match Thru Adapter 85059-60017

NOTE It is recommended to connect the Veriﬁcation Standards to the cable on

port 2 prior to attempting to connect to port 1. Then follow the recommended procedure for making a thru connection outlined under step 3 above to avoid damaging the cable.

6. Use defaults for

Measurement (If Required): 2

7. If your system has Option 005, verify that

Required)

8. Select

9. Select

is set to Yes. Otherwise, set to No.

Done and follow the program prompts. Measure Data to measure the veriﬁcation standards. Follow the

Cal Set for Broadband Measurement: 1 and Cal Set for 45 MHz

in the Standard Menu.

Cal Set for 45 MHz Measurement (If

program prompts.

10. When veriﬁcation has been completed view the data, then print or save (if required). If needed the veriﬁcation standard can be remeasured by selecting

Repeat Measure.

8510XF Service Quick Reference Guide

4-9

Performance Verification

Verification Procedures

11. Select Select Standard to return to the Standard Selection Menu. Repeat

steps 5 through 10 above for the other veriﬁcation standard (refer to Table 4-6 on page 4-9).

12. Select

Prior Menu until the Main Menu appears.

HighBandVeriﬁcation (> 50 GHz)

NOTE Before veriﬁcation of the high band frequencies it is necessary to:

1) select new hardware for the system, and

2) perform a calibration (for the frequency band > 50 GHz).

1. From the Main Menu select

2. Select the proper hardware setup for High Band Veriﬁcation (> 50 GHz) using Table 4-2 on page 4-3 for the E7352A 110 GHz System or

Table 4-3 on page 4-3 for the E7342A 85 GHz System.

3. Select

4. Select

5. Select

Done and Prior Menu to return to Main Menu. Verify System to go to the System Performance Veriﬁcation Menu. System Cal and follow the program prompts to calibrate the system

for frequencies >50 GHz. See Table 4-1 on page 4-2 for the calibrations required and suggested calibration storage locations (refer to step 3 on

page 4-8).

System Conﬁg then Hardware Conﬁg.

6. Select

Select Standard to go to the Standard Selection Menu.

7. To verify the system use the Veriﬁcation Standards provided with the 85059A 1.0 mm Precision Calibration and Veriﬁcation Kit (refer to

Table 4-6 on page 4-9). Using the menu select the veriﬁcation standard

and enter the standard’s serial number. The veriﬁcation standards may be measured in any order.

NOTE It is recommended to connect the Veriﬁcation Standards to the cable on

port 2 prior to attempting to connect to port 1. Then follow the recommended procedure for making a thru connection outlined under step 3

on page 4-8 to avoid damaging the cable.

8. Change default for

Cal Set for Broadband Measurement from 1 to 3.

NOTE It is suggested that the High Band Calibration be stored in Cal Set 3 (Refer

to Table 4-1 on page 4-2).

4-10

8510XF Service Quick Reference Guide

Performance Verification

Verification Procedures

9. Verify Cal Set for 45 MHz Measurement (If Required) is set to No.

10. Select

11. Select

Done and follow the program prompts. Measure Data to measure the veriﬁcation standards. Follow the

program prompts.

12. When veriﬁcation has been completed view the data, then print or save (if required). If needed the veriﬁcation standard can be remeasured by selecting:

13. Select

Repeat Measure.

Select Standard to return to the Standard Selection Menu. Repeat

steps 7 through 12 above for the other veriﬁcation standard (refer to Table 4-6 on page 4-9).

14. Select

15. Select

Prior Menu until the Main Menu appears. Quit Program to exit the program, then close the program window to

ﬁnish.

8510XF Service Quick Reference Guide

4-11

Performance Verification

CW Frequency Accuracy Test

NOTE The CW frequency accuracy test should be performed prior to doing the

conversion loss calibration adjustment or detector gain calibration.

Source frequency accuracy is tested across the entire sweep range for 8360 sources. The CW frequency accuracy is measured with a frequency counter.

Materials Required The following materials are required to run the tests:

• 5343 Option 001, 10 MHz to 26.5 GHz frequency counter

• 10 dB pad

NOTE If the source and test set operate below 500 MHz, connect the test set output

to the 10 Hz to 500 MHz BNC connector on the frequency counter. The input switch on the frequency counter must also be in the 10 Hz to 500 MHz position.

Procedure 1. Connect the equipment as shown in Figure 4-1.

Figure 4-1 CW frequency accuracy equipment setup

2. To preset the instruments, press

{FACTORY PRESET}

4-12

8510XF Service Quick Reference Guide

. Disregard any error messages.

INSTRUMENT STATE [RECALL] {MORE}

Performance Verification

CW Frequency Accuracy Test

3. To set the frequency using the analyzer front panel, press STIMULUS

[CENTER] [MENU] {SINGLE POINT}

Enter the start frequency of the source.

4. Measure RF and LO frequencies with the counter, and record these values on the test record at the end of this section.

5. From the analyzer front panel, enter the frequency per the tables at the end of this section.

NOTE Be sure to connect RF and LO output to the 500 MHz to 26.5 GHz input on

the frequency counter. Also set the input switch to the 500 MHz to 26.5 GHz position.

6. Measure the frequency with the counter,then record the value on the test record at the end of this section.

In Case of Difﬁculty If the measured values do not meet the speciﬁcations listed on the test

record, refer to your source manual for adjustment and troubleshooting instructions.

8510XF Service Quick Reference Guide

4-13

Performance Verification

CW Frequency Accuracy Test

Performance Test Record

Record the measured frequencies for RF source readings on Table 4-7, and for LO source on Table 4-8.

Table 4-7 Performance test record for CW frequency accuracy test (RF source)

Instrument Model: _________________ Report Number: __________________________ Date: _______

Frequency Minimum Speciﬁcation Recorded Results Maximum Speciﬁcation Uncertainty

45 MHz 44.999955 MHz 45.000045 MHz 10 Hz 2 MHz 1.999998 GHz 2.000002 GHz 10 Hz

20 GHz 26 GHz 26.4999735 GHz 26.5000256 GHz 5 kHz

1. The measurement uncertainty is quoted for these performance tests using only the recommended models speciﬁed in Table 8-1 of the “Equipment Required” chapter of the On-Site Service Manual. The quoted uncertainty represents limits of 3 times the equivalent standard deviation (3s) and is intended to represent 90% conﬁdence level.

2. For 83620A/B or 83621A/B only.

19.99998 GHz 20.00002 GHz 4 kHz

Table 4-8 Performance test record for CW frequency accuracy test (LO source)

Instrument Model: _________________ Report Number: __________________________ Date: _______

Frequency Minimum Speciﬁcation Recorded Results Maximum Speciﬁcation Uncertainty

45 MHz 44.999955 MHz 45.000045 MHz 10 Hz 2 MHz 1.999998 GHz 2.000002 GHz 10 Hz

20 GHz

2. For 83620A/B or 83621A/B only.

19.99998 GHz 20.00002 GHz 4 kHz

4-14

8510XF Service Quick Reference Guide

Two-Band Calibration Procedure for

8510XF Performance Verification

The 8510XF requires separate verifications for frequencies below and above 50 GHz (see "Frequency Ranges" in this same chapter).

A special two-band calibration procedure is required for the performance verification of the 8510XF System (a single full-band measurement calibration is equivalent).not

There are up to three different full 2-port calibrations and corresponding frequency ranges required, which are stored in suggested locations in the 8510 analyzer.

(E7352L or

Calibration Storage Locations

File Location Name:

Cal Set 1

Cal Set 2 45 MHz

Cal Set 3 50–110 GHz

1. This calibration is for Option 005 systems only.

2. The frequency for standard systems is 2–50 GHz.

3. The frequency range shown is for the E7352A system only. The E7342A system's frequency range will be: 50–85 GHz

or more information refer to the section on "Frequency Ranges" in this same chapter. The parameters for these calibrations are set up automatically on the analyzer by the performance verification software.

Frequency Range of Data Stored:

1–50 GHz (2–50 GHz)

Calibration Techniques and Standards

Calibration Kit Label:

Frequency

Range

DC–50 GHz

Calibration

Technique

SOLT

"Open" Standard

(Reflection)

Open

Disk File Name:

"Short" Standard

CK_MMKA1A

(Reflection)

Short 3

50–110 GHz Offset Shorts Short 3 Short 1

1. SOLT = Short, Open, Load and Thru standards

2. The broadband load is a combination of a lossy delay line plus a 50 GHz load.

3. Also used for 45 MHz frequency point.

Calibration Techniques:

A variety of calibration techniques can be used with the 8510XF, including the following:

(Short-Open-Load-Thru) Used for performance verification 45 MHz to 50 GHz.

•

SOLT

•

Offset Shorts

TRL

(Thru-Reflect-Line)**

•

TRM

(Thru-Reflect-Match)**

•

** Note: Not used for performance verification

The calibration technique used depends in part on the type of calibration kit used. The 1.0 mm calibration kit (85059A) was designed specifically for the 8510XF, and uses a combination of two calibration techniques: SOLT calibration for frequencies up to 50 GHz, and offset shorts calibration for frequencies above 50 GHz. This combination of techniques provides the best possible calibration results on the 8510XF.

(Shorts with different offset lengths) Used for performance verification 50 GHz

to 110 GHz.

E7342L)

1.00mmA.1A

8510C

MM Controller

Left

Test

Head

Full 2-port calibration system configuration

for performance verification in 1.0 mm coax.

"Load" Standard

(Reflection)

50 GHz Load Thru

Short 4 Short 2

83651B

83621B

Cable F-F (8.8 cm) 11500-60001

From 85059A calibration verification kit

"Thru" Standard

(not used for

1-port cal)

Thru Load BB

E7341A (Std. or Opt. 005)

Right Test Head (E7352R or E7342R)

Cable F-F (8.8 cm)

"Isolation"

Standard

50 GHz Load

Clarifying Connector Sex:

The calibration standard labels that appear in the 8510XF softkey calibration menus specify connector sex as "(M)" or "(F)". The sex designator refers to the sex of the test port connector to which the calibration standard is connected ( the sex of the calibration standard connector).not

Offset Shorts:

Male Test Port

The "OPEN" category is therefore renamed "OPEN/SHORT," and the "LOAD" category is renamed "LOAD/SHORT" on the calibration menu softkey labels.

Female Calibration Standard

Offset shorts are used in the place of opens and loads

Full 2-Port Reflection

Cal Menu

(S11):

SHORTS

(S22):

SHORTS

DONE

THRU

TRANS.

DONE

OMIT

LOAD

DONE

CLASS11A

CLASS11B

CLASS11C

CLASS22A

CLASS22B

CLASS22C

REFD

FWDT

FWDM

REVT

REVM

TRAD

OMII

FWDI

REVI

ISOD

(F)

(M)

Lossy Delay Line

(M) (F)

(F) (M)

50 GHz Load

"FWD/REV ISOL'N LOAD"

OPEN/SHORT

LOAD/SHORT

OPEN/SHORT

LOAD/SHORT

Full 2-Port

Cal Menu

REFLECT'N

ISOLATION

2-PORT CAL

TRANS-

MISSION

SAVE

Cal Cal Set Select Menu

REFL

TRAN

ISOL

SAV2

REFLECT'N

Full 2-Port

Transmission

Cal Menu

FWD. TRANS

FWD. MATCH

REV.TRANS.

REV. MATCH

Full 2-Port

Isolation

Cal Menu

ISOLATION

FWD ISOL'N

REV ISOL'N

ISOLATION

For: < 50 GHz use a 50 GHz load only. For: > 50 GHz a lossy delay line is required in addition

to a 50 GHz load.*

Note: If you use a 50 GHz load only, a bad calibration will

result due to reflection from the load above 50 GHz.

at frequencies above 50 GHz.

Open/Short

(F) OPEN

(F) SHORT3

(M) OPEN

(M) SHORT3

DONE

OPEN/SHORT

Shorts Menu

(F) SHORT3

(F) SHORT1

(M) SHORT3

(M) SHORT1

DONE

SHORTS

Load/Short

50 GHz LOAD

(F) SHORT4

(F) SHORT2

(M) SHORT4

(M) SHORT2

DONE

LOAD/SHORT

(M)

(F)

DONE

(M)

(F)

DONE

(F)

(M)

(F)

DONE

rr51c

8510XF Full 2-Port Calibration Menus

5 System Level Servicing & Troubleshooting

This chapter describes the basic servicing and troubleshooting techniques for the 8510XF system.

8510XF Service Quick Reference Guide

5-1

System Level Servicing & Troubleshooting

Theory of Operation

The 8510XF applies RF test signals to the DUT, and compares these incident signals to whatever is reﬂected from (or transmitted through) the DUT. The incident, reﬂected, and transmitted signals are separated out by means of directional couplers, and mixed down to create a set of four IF inputs to the analyzer, as illustrated below.

Figure 5-1 Basic operation of the system

5-2

8510XF Service Quick Reference Guide

System Level Servicing & Troubleshooting

Theory of Operation

At this simpliﬁed level of description, system operation does not differ from that of other 8510-based systems. What makes the 8510XF unique is the means by which it covers its extremely wide frequency range.

Figure 5-2 shows how the 8510XF test set is divided into frequency bands.

For the sake of simplicity, this ﬁgure only shows half of the test set. An actual test set, with two base units and two test heads, would include twice as many mixers. Note that all bands make use of the same output/input paths, the same connection to the DUT, and the same directional couplers.

Figure 5-2 Modules of the 7352A test set

8510XF Service Quick Reference Guide

5-3

System Level Servicing & Troubleshooting

Theory of Operation

Millimeter Wave Controller

The controller has more functions than are illustrated in Figure 5-2 on

page 5-3. It controls the switching of RF paths in the microwave subheads

and test heads at different points in the system’s frequency range. It also collects together the IFs generated by all mixers in the microwave subhead, the millimeter test heads, and the controller itself, and uses a multiplexer to furnish the appropriate IFs to the network analyzer at each moment in time.

Frequency Bands Each frequency band uses its own set of mixers. The bands are as follows.

Band Included In

.045 to 2 GHz 8510XF systems with Option 005 2 to 50 GHz All 8510XF systems 50 to 85 GHz

50 to 75 GHz 75 to 110 GHZ E7350A systems/E7352A subsystems

Frequency Multiplication The frequency range of the system greatly exceeds that of the system’s RF

source (the 83651B has a maximum frequency of 50 GHz). Frequencies above 50 GHz are generated through harmonic multiplication of the RF source. The signals from the LO source are also multiplied, in the sense that the mixers in certain ranges are designed to use a harmonic of the LO input, rather than the fundamental input. The details for each band are discussed below.

E7340A systems/E7342A subsystems E7350A systems/E7352A subsystems

75 to 110 GHz Band In the 75 to 110 GHz range, the signal from the RF source is applied to a

frequency tripler in the test head. The mixers for this range are located in the test head, and designed to use the 18th harmonic of the LO input frequency. This applies to E7350A systems and E7352A subsystems only.

50 to 85 GHz or

50 to 75 GHz Band

In the 50 to 85 GHz range, the signal from the RF source is applied to a frequency doubler in the test head. The mixers for this range are located in the test head, and designed to use the 14th harmonic of the LO input frequency. For E7350A systems and E7352A subsystems, this band covers the 50 to 75 GHz range.

2 to 50 GHz Band In the 2 to 50 GHz range, the signal from the RF is not multiplied; it is

applied directly to the mixers. The mixers for this range are located in the microwave subhead. In a portion of this range (from 18 to 50 GHz) the mixers use the third harmonic of the LO input frequency. In the remainder of this range (from 2 to 18 GHz), the mixers use the fundamental of the LO input frequency.

5-4

8510XF Service Quick Reference Guide

System Level Servicing & Troubleshooting

Theory of Operation

0.045 to 2 GHz Band In the .045 to 2 GHz range, the signal from the RF source is not multiplied; it

is applied directly to the mixers. The mixers for this range are located in the millimeter wave controller, and are designed to use the fundamental of the LO input frequency. This applies to 8510XF systems equipped with Option 005 only.

8510XF Service Quick Reference Guide

5-5

System Level Servicing & Troubleshooting

8510XF Firmware Specifications

8510XF Firmware Speciﬁcations

Operating Parameters Frequency Limits: 45 MHz to 85 GHz (E7340A/E7342A with Option 005)

or 45 MHz to 110 GHz (E7350A/E7352A with Option 005) Band Crossings:

Table 5-1 Band crossings (45 MHz- 85 GHz)

RF Frequency RF Harm LO Harm Band

45 MHz - 2 GHz 1 1 0 2 - 18 GHz 1 1 1 18 - 50 GHz 1 3 1 50 - 64.2 GHz 2 12 2

64.2 - 85 GHz 2 14 2

Table 5-2 Band crossings (45 MHz- 110 GHz)

RF Frequency RF Harm LO Harm Band

45 MHz - 2 GHz 1 1 0 2 - 18 GHz 1 1 1 18 - 50 GHz 1 3 1 50 - 64.2 GHz 2 12 2

64.2 - 75 GHz 2 14 2 75 - 85.5 GHz 3 14 3

85.5 - 97.7 GHz 3 16 3

97.7 - 110 GHz 3 18 3

Step Mode Internally implemented as frequency list mode.

• 51 points

• 101 points

• 201 points

• 401 points

• 801 points

List Mode Up to 801 points.

5-6

8510XF Service Quick Reference Guide

System Level Servicing & Troubleshooting

8510XF Firmware Specifications

Sweep Time Similar to 8510C.

Hardware States The hardware states speciﬁc to the 8510XF are as shown in Table 5-3.

Table 5-3 Hardware States Speciﬁc to 8510XF

System Parameter

System Phaselock Multi Source Leveling Source #1 (RF) Leveling Source #2

1. These menus are integrated into the ﬁrmware and are not available as softkeys.

2. Source leveling is set to system for normal (default) 8510XF operation. The source will indicate external leveling for the RF source and internal leveling for the LO source.

Frequency Range (45 MHz to 50 GHz)

None None On On System (External) System (External) System (Internal) System (Internal)

Frequency Range (50 to 85 GHz, or 50 to 110 GHz)

Receiver: Constant frequency = 0.020000000 GHz

Instrument States Table 5-4 shows the instrument states speciﬁc to the 8510XF system.

Table 5-4 Instrument states speciﬁc to the 8510XF system

System Parameter

RF Power source #1 LO Power source #2 Z

Delay Coaxial Coaxial

1,2

Frequency Range (45 MHz to 50 GHz)

−10 dBm −10 dBm +10 dBm +10 dBm 50 ohm 50 ohm

Frequency Range (50 to 85 GHz or 50 to 110 GHz)

1. The 8510XF normally operates in step mode (ramp mode is not available).

2. Source power is set/read with internal source leveling selected. Normal (default) operation of the 8510XF is with system source leveling selected.

3. Zo is normally set to one Ohm for calibrations/measurements using waveguide test port connectors.

8510XF Service Quick Reference Guide

5-7

System Level Servicing & Troubleshooting

Power Level Check

A quick operational check may be performed by measuring the power levels of the 8510XF user parameters a levels listed in Table 5-5 on page 5-9 gives the user a high level of conﬁdence that the system is operating properly. For complete system veriﬁcation, see Performance Veriﬁcation, page 4-1.

, b1, a2, and b2. Observing the appropriate

1. If needed, save the current instrument state by pressing

[SAVE]

and selecting 1-8. Press INSTRUMENT STATE [RECALL], {MORE}, {FACTORY

PRESET}

to restore the default factory instrument state. Change the

INSTRUMENTSTATE

instrument settings as indicated under “Power level check (low RF

power)” on page 5-10.

2. Connect a short to test port 1. Press

PARAMETER [MENU], then {USER 1 a1}.

The forward reference signal path power level is displayed. The power level should be approximately as indicated in Table 5-5 and Figure 5-3

on page 5-11.

3. Select

{USER 4 b1}. The forward reﬂection signal path power level is

displayed. The power level should be approximately as indicated in

Table 5-5 and Figure 5-6 on page 5-12.

4. Connect a short to test port 1. In order to measure the reverse reference signal path, the parameter must be redeﬁned. Press:

{USER 3 a2} {REDEFINE PARAMETERS} {DRIVE} {DRIVE:PORT2} {REDEFINE DONE}

The reverse reference signal path signal level is displayed. The power level should be approximately as indicated in Table 5-5 and Figure 5-5

on page 5-12.

5. In order to measure the reverse reﬂection signal path, the parameter must be redeﬁned. Press:

{USER 2 b2} {REDEFINE PARAMETERS} {DRIVE} {DRIVE:PORT2} {REDEFINE DONE}

The reverse reﬂection signal path power level is displayed. The power level should be approximately as indicated in Table 5-5 and Figure 5-4

on page 5-11.

5-8

8510XF Service Quick Reference Guide

System Level Servicing & Troubleshooting

Power Level Check

6. Connect Port 1 and Port 2 together. Select {USER 2 b2} {REDEFINE

PARAMETERS} {DRIVE} {DRIVE:PORT1}

. The forward transmission signal path power level is displayed. The power level should be approximately 2 dB less than what was measured with a short on each test port.

NOTE The following measurements show the approximate RF signal levels

incident at the ﬁrst frequency conversion stage and are given in dBm even though the marker value is read out in dB.

NOTE Figures 5-3 through 5-6 are typical graphs from which the data in Table 5-5

was derived. These graphs are typical 8510XF user channel traces with offset shorts connected to Port 1 and Port 2. The RF source power level must be set so that it does not activate the IF OVERLOAD running error message.

Table 5-5 Typical power levels for power level check (low RF power) of the mm-wave

sub-system

Raw Channel Power

Frequency Range (GHz) 75-110 (E7350A/E7352A only)

1 (USER 1)

1 (USER 4)

2 (USER 3)

2 (USER 2)

Frequency Range (GHz)

0.045 to 50

−5 to −35 −30 to −50 −35 to−50

Frequency Range (GHz) 50 to 85 (E7340A/E7342A) 50 to 75 (E7350A/E7352A)

NOTE 0.1 dB compression, −8 dBm; typical, −10 dBm maximum; damage,

+15 dBm.

If any of the power levels shown in Table 5-5 and Figures 5-3 through 5-6 are not observed (within approximately

±5 dB), consult the “Service and

Troubleshooting” paragraphs in this Quick Reference Guide. An Agilent Customer Engineer may be contacted for service assistance (see “Contacting

Agilent” on page v).

Additional graphs—for help with troubleshooting—are provided in the following sections:

• “Power level check (high RF power)” on page 5-13

• “Operator’s check (normal operating condition)” on page 5-16

8510XF Service Quick Reference Guide

5-9

System Level Servicing & Troubleshooting

Power Level Check

Test Plots Power level check (low RF power)

The RF source power level must be set so that the IF OVERLOAD running error message is not activated when obtaining these graphs. The graphs

Figures 5-3 through 5-6 were obtained with the following settings:

1. Factory preset

2. Shorts connected to Ports 1 and 2

3. RF Source leveling: internal (no conversion loss calibration)

4. Disconnect the BNC cable from the millimeter-wave controller ALC output to the RF Source ALC input.

5. LO Source leveling: system (default)

6. RF Source power: −10 dBm (default)

NOTE In order for no IF OVERLOAD running error message to occur, it may be

necessary to set the RF Source power level lower.

7. LO Source power: +10 dBm (default)

8. Response reference value: 0 dB (default)

9. Response reference position: 8 Div

5-10

8510XF Service Quick Reference Guide

System Level Servicing & Troubleshooting

Power Level Check

Figure 5-3 User 1 (a1)

Figure 5-4 User 2 (b2)

8510XF Service Quick Reference Guide

5-11

System Level Servicing & Troubleshooting

Power Level Check

Figure 5-5 User 3 (a2)

Figure 5-6 User 4 (b1)

5-12

8510XF Service Quick Reference Guide

System Level Servicing & Troubleshooting

Power Level Check

Power level check (high RF power)

The IF OVERLOAD running error message is normal when obtaining these graphs. A power level of +10 dBm will over drive the 8510XF so you can see the intermodulation leveling differences. The graphs Figures 5-7 through

5-10 were obtained with the following settings:

1. Factory preset

2. Shorts connected to Ports 1 and 2

3. RF Source leveling: internal (no conversion loss calibration)

4. Disconnect the BNC cable from the millimeter-wave controller ALC output to the RF Source ALC input.

5. LO Source leveling: system (default)

6. RF Source power: +10 dBm

NOTE Disregard IF OVERLOAD running error message.

7. LO Source power: +10 dBm (default)

8. Response reference value: 0 dB (default)

9. Response reference position: 8 Div

8510XF Service Quick Reference Guide

5-13

System Level Servicing & Troubleshooting

Power Level Check

Figure 5-7 User 1 (a1)

Figure 5-8 User 2 (b2)

5-14

8510XF Service Quick Reference Guide

System Level Servicing & Troubleshooting

Power Level Check

Figure 5-9 User 3 (a2)

Figure 5-10 User 4 (b1)

8510XF Service Quick Reference Guide

5-15

System Level Servicing & Troubleshooting

Power Level Check

Operator’s check (normal operating condition)

The graphs Figures 5-11 through 5-14 were obtained with the following settings (normal default settings) after performing a factory preset:

1. Shorts connected to Ports 1 and 2

2. RF Source leveling: system (default—with conversion loss calibration)

3. BNC cable connected from millimeter-wave controller ALC output to the RF source ALC input (default).

4. LO Source leveling: system (default)

5. Port 1 and Port 2 power level: −15 dBm (default)

6. Response reference value: −20 dB

7. Response reference position: 5 Div (default)

NOTE For additional information on normal operating conditions, refer to the

“System Operation Test” section in the “Installation” chapter of the 8510XF Operating and Service Manual.

5-16

8510XF Service Quick Reference Guide

System Level Servicing & Troubleshooting

Power Level Check

Figure 5-11 User 1 (a1)

Figure 5-12 User 2 (b2)

8510XF Service Quick Reference Guide

5-17

System Level Servicing & Troubleshooting

Power Level Check

Figure 5-13 User 3 (a2)

Figure 5-14 User 4 (b1)

5-18

8510XF Service Quick Reference Guide

What's Wrong?

1. Do you have any self test failures, running error messages (beeping) or raw channel power (unratioed power) problems? = MAGIC QUESTION.

2. Failed performance tests?

3. Display or Front Panel abnormalities, measurement errors, or display hang-ups?

4. Low or no power symptoms?

Do a Pre-Operational Check of the

8510XF System

Check Front and Rear Panel control settings, cables and GPIB addresses. Check the 85101 free run switch on the A5 Processor Board (all zeros), and proper firmware revisions for source and 8510XF (you may need to reload the Operating System in an extreme case). Check that the 8510XF firmware is XF.01.00 or greater.

First, turn on the Sources, then the Test Set, then the 8510XF, or the system cabinet power switch. Then check all troubleshooting LED's. See the 8510XF system level troubleshooting block diagram for these LED's. See installation for additional information in performing the Preflight Checkout.

If NO Obvious Failure Type

Prove 85101 is OK

Obvious Self-Test, running error, or unratioed power test failure. Refer to the 8510XF Service Manual, part number E7350-90001, Service and Troubleshooting.

Obvious Failure Type

No Obvious Failure Type

The best approach to repair the 8510XF at this point is to verify that the 85101C is good. Once it is known to be good, it will act as your diagnostic controller.

Remove the external controller, printer, etc. and the cables from the 8510XF system.

Run the 8510XF Service Program to verify that the 8510XF is OK to a 95% confidence level. To do this, run all the service program tests in the "85101C Display/Processor Service Program menu (#1)." These tests take about ten minutes. Refer to the 8510XF Service Program Flowchart. See partial flowchart on next page.

NOTE: the above tests can be skipped if the 85101C passes the power up 85101 self test. The self test has only a 70% confidence level, so use it accordingly.

To Sheet 2

Obvious Failure Type

Obvious Calibration or Verification Problem

Read the 8510XF Calibration and Verification and Cable manuals on how to inspect, gage, clean, and use the calibration and verification devices, waveguide, and test port return cables. Make sure, if your 85059A Verification Kit has been certified to 110 GHz within the past year.

Obvious Software Problem

Try the backup standard software by reloading the Operating System firmware.

It might be a known software bug. See STARS bug report. Call the factory with details for checkout and duplication of unknown and new bugs!

Obvious Power Supply Problem

CHECK POWER SUPPLIES

Check all main (110V/220V) fuses and power switches. Remove 85101, 85102 and E7342A/52A instrument covers and check LED power and service indicator lights. Recheck by measuring each power supply voltage with a DVM.

The 85102 power switch LED is supplied by the +5V supply in the 85101.

83621A/B

LO Source

45 MHz to 20 GHz

83651A/B

RF Source

45 MHz to 50 GHz

IF, 75-110 GHz

Band

IF, 50-75 GHz

Band

IF, 2-50 GHz

Band

Reference IFsTest IFs

IF, 45 MHz-2 GHz

Band

Option 005

IF, 75-110 GHz

Band

IF, 50-75 GHz

Band

IF, 2-50 GHz

Band

IF, 45 MHz-2 GHz

Band

Option 005

Simplified Signal Path of Unratioed Power Level Tests

Test Head ( 1 of 2 )

Millimeter

Wave

Controller

Option 005

EPROM ID on the

GPIB Board A12

45 MHz to

2 GHz

50 GHz-

110 GHz

45 MHz-

50 GHz

SLOPE AMP

8-18 dB

2-50 GHz

<2 GHz

Splitter

2-50 GHz

Microwave Subassembly Millimeter Wave Subassembly

<2 GHz

Splitter

PREAMP

SLOPE AMP

75-110 GHz

50-75 GHz

<50 GHz

75-110 GHz

50-75 GHz

<50 GHz

75-110 GHz

50-75 GHz

<50 GHz

Combiner

Splitter

Combiner

Splitter

Combiner

Splitter

(Incident)

a1, a2

(Reflected or Transmitted)

test b1, b2

45 MHz - 110 GHz

E7340

flowcht1.cdr

Rev. 2 4/22/98

Refer to Qualified

Personnel Only!

Test Port

( 1 of 2)

8510XF System Service Flow Diagram (Sheet 1of 2)

5-17/5-18

From Sheet 1

85101 is OK

NOTE: From this point, the problem is probably one of the remaining instruments; the 85102, sources, test heads, the mm-wave controller or their interfaces.

You can use the 8510XF, power-up self tests, running error messages, a1, a2, b1, and b2 raw channel displays, troubleshooting LED's, and passed installation data and displays to help pinpoint the problem to an instrument. But, with the diagnostic aids that are now available for the 8510XF, the quickest way to isolate a problem to an instrument is using the technique of instrument substitution using the diagnostic aids as follows:

To prove that the 85102 is OK, run the built-in 85102 IF/Detector Service Program Number 2. This verifies that the 85102 is good to an 80% confidence level. It takes less than a minute to run and pinpoint failures to a board.

Prove 85102 is OK

85102 is OK

Partial Flowchart

Quick Reference

GPIB

Main Service Functions Menu

Looping Self Tests

1 A5 Processor Eprom 2 A5 Processor Ram 3 A7 Data Bus 4 A4 Display Processor 5 A4 Display Ram 6 A7 Timer/Clock/RS-232 7 A7 Public HP-IB 8 A7 System Bus 9 Interrupt System 10 A5 Multiplier 11 A7 Disk Controller 12 A6 Non-Volatile Memory 13 IF Detector Data 14 Keyboard

ENTER selection, then press =MARKER

System Commands

15 Run Main Program 16 Memory Operations 17 Rerun Self Test 18 Repeat Test Loop

Disk Commands

19 Load Program Disk 20 Record Program Disk 21 Initialize Disk

Service Commands

22 Run Service Program 23 Diagnose a Failure

If All Four Channels Fail the

Unratioed Power Level Tests

If all four channels fail the Unratioed Power Level Tests, the most likely causes are a failure in the RF or LO Sources signal going to the Controller test head and associated cables that effect all four channels (see LO path and RF path). A Power Supply can also cause these paths to fail.

Remove the GPIB and RF power cables from the 8510XF system to isolate the sources. Refer to the appropriate source manual to troubleshoot the 83651B and 83621B. For 8360 series sources use the front panel emulator 08510-60022.

NOTE: Do not try to measure the RF source power in source #1 in the 8510XF system by disconnecting the RF cable. Measuring the RF from the source breaks the leveling loop and causes the source to supply maximum power output. Instead, try placing a coupler in the RF cable path and measure the power that way. Consider substituting known good sources and cables for the suspected sources, if they are available.

(20 minute test) To prove that the E7342A/52A Millimeter Sub-Systems are at fault use the part number 85102-60210 5-way power splitter. This substitutes for the mm-wave controller test heads and sources and proves whether they are at fault. Also run the 8510C Service Program Menu number 3.

Finally, perform the RF Source built-in diagnostics and the E7342A/52A un-ratioed power troubleshooting. Refer to the Operator's Check , and perform this check to troubleshoot the un-ratioed power levels. This tests the RF Sources mm-wave controller and test heads. This verifies that the RF Source, mm-wave controller and test heads are operating to a 90% confidence level.

If All Four Channels are OK, the 8510XF is OK and You are Done!

If One, Two, or Three Channels Fail the Unratioed Power Tests. If the power levels on at least one but not all of the four channels fail, the most likely cause of failure is the test head or mm-wave Controller. See E7342A/52A manual for service procedures for they are manual procedures and cannot be abbreviated here.

Below describes how test set manual works for the 8510XF. To help narrow the problem to the faulty instrument, the service adapter and service tools are used to emulate the operation of the source and test set and check unratioed power levels into the 85102 IF/Detector.

Run the Service Program using the Test Set GPIB commands tests. These tests can find approximately 15% of all E7342A/52A mm-wave Controller failures and requires about one minute to complete. The digital functionality of the mmwave Controller is checked with this test, not the RF paths. Finally, use the failed unratioed power test to find the bad path/paths and assembly.

NOTE: Do not perform Test number 5 "Increment Active Attenuator" in the "Test Set GPIB Commands" menu. The mm-wave Controller does not contain any attenuators.

If One, Two, or Three Channels Fail the Unratioed Power Tests

8510 Service Program Menu

85101 Display/Processor Service Program 1

85102 IF/Dectector Service Program 2

Test Set GPIB Service Program 3

Return to Main Service Functions Menu F[,]

NOTES:

1. Hex digits A thru F are assigned to [G/n], [M/u], [k/m], [X1], [+/-], and [.] respectively.

2. To make a selection, type the number indicated, then press =MARKER.

3. The default value on data entry is zero.

85101 Display/Processor

Service Program Menu

CPU Board Tests (A5) 1

I/O Board and Front Panel Tests (A1, A2, A7) 2

Display Board and CRT Tests (A4, A11) 3

Non-Volatile Memory Board Tests (A6) 4

Return to 8510 Service Program Menu F [,]

E7340

flowcht2.cdr

Rev. 2 4/22/98

8510XF System Service Flow Diagram (Sheet 2of2)

5-19/5-20

HOWTOREADTHISBLOCKDIAGRAM:

THISDIAGRAMSHOWSATYPICAL851OXFSYSTEM CONFIGURATION.NOTETHATTHECIRCUITBOARDSAND ASSEMBLIESHAVENUMBERSPRECEDEDBYTHELETTER 'A',THATNUMBERIDENTIFIESTHEASSEMBLY.THEOTHER NUMBERSREFERTOTHELISTONSHEET2.

USETHISBLOCKDIAGRAMASAQUICKREFERENCEGUIDE TOSYSTEMFAILURESASWELLASAGUIDETOLED LOCATIONANDMEANING.TESTSETADDRESSAND CONFIGURATIONSWITCHSETTINGSAREALSOSHOWN.

NUMBERS1–14

THESENUMBERSIDENTIFYTHESELFTESTTHAT EXERCISESTHEPARTICULARASSEMBLY,MOSTLYONTHE 85101DISPLAY/PROCESSOR.FORMOREINFORMATION, REFERTO'SELF'TESTFAILURESINTHEON–SITESERVICE MANUAL.

NUMBERS15–36

THESENUMBERSIDENTIFYTHEBUILT–INRUNNING ERRORMESSAGETHATWILLAPPEARONTHE8510ICRTIF ASYSTEMFAILUREISDETECTED.MOSTLYONTHE85102 IF/DETECTOR,TESTSET,ANDSOURCE.THENUMBERS IDENTIFYTHEASSEMBLIESWHERETHEERRORIS DETECTEDORGENERATED.FORMOREINFORMATION, REFERTO'RUNNINGERRORMESSAGES'INTHEON–SITE SERVICEMANUAL.

NUMBERS37–41

THESENUMBERSIDENTIFYRUNNINGERRORMESSAGES ASSOCIATEDWITH8360–SERIESSOURCESONLYAND APPEARONTHE85101CRT.

NUMBERS42–45

THESEAREEXTRATROUBLESHOOTING

TESTSETDEFAULTSETTINGS:Option006.

THEDEFAULTSTATEOFTHE8517A/BTESTSETS(TURN POWEROFF,PULLA4GPIBBOARDANDTURNPOWER BACKON)ISTOHAVEALLSAMPLERSENABLED,A14'SVTO BIASEDON,PORT1AND2ATTENUATORSAT0dB,ANDTHE SWITCHSPLITTERAPPLYINGRFPOWERTOPORT1.

UNIQUETOOLS

TORXDRIVERT-108710-1623(ForChassis)

TORXDRIVERT-158710-1622(ForChassis)

ALLENWRENCH#5020-0289(ForRPGKnob)6=1/16IN.

85101C

(Address16)

IF/Display

Interconnect

Source LanguageSW setto111 toallow programs toselect language.

MMWave

Controller

(Address23)

RFSource

(Address19)

Language111

LOSource

{

(Address18)

Language111

85102B

83651B

83621B

Option006

CoupledRFOutput

RFInput

LOInput

ALCOutput

RFOutput

EXTALCIn

RFOutput

SelfTestIndicatorsforMillimeterWaveControllerGPIBBoard

IftheACTIVELEDontheFrontPaneldoesnotlightwithintwoseconds ofturnon,orlightsimmediately,thetesthasnotpassedit’sSelfTest. YoucandeterminewhatpartoftheSelfTestfailedbydeterminingwhich GPIBLEDsontheA12Assemblyarelit.TheTablebelowshowsthe possibleSelfTestfailures.

REM

OFF

ElapsedTime

AfterTurn-On

(inseconds)

0to0.5

ONBriefly

0.52to2.0

After2sec.

SelfTest

Indication

PWON

FailROMTest

PassROMTest

FailRAMTest

PassRAMTest

Twosecondsafterturn-onallfourGPIBLEDsshouldgoOFF,andthe FrontPanelACTIVELEDshouldlightsimultaneously.Aftergoingout briefly,thetwoGPIBLEDswilllightaccordingtothestateoftheTest Set.IfyouareusingmultipleTestSets,thefirstTestSetinlinewillbe theactiveTestSetuntilanotherischosen.

IfSelfTestFailstoRun

IftheportionofmemorywhichcontainstheSelfTestprogrammingisfaulty, theSelfTestwillnotrunproperly.Thefollowingconditionsindicatethatthe SelfTestROMsarefaulty:

AllLEDsflashbrieflyandgoOFF AllLEDsflashbrieflyandstayON ACTIVELEDgoesONbeforeGPIBLEDsgoOUT ACTIVELEDdoesnotgoONatall(checkLEDoperationbeforeproceeding)

8in-lbs20mm8710-1764

8in-lbs5/16in8710-1765

4in-lbs6mm8710-2079

A12GPIBLEDs

LSN

TLK

SRQ

ON ONONONONON

OFF

ON ON

OFF

OFF OFF

OFF

TORQUEWRENCHES

8510XF

(RearView)

40103ARack

FillerPanel

40104ARack

FillerPanel

8510CInterconnect

TestSetInterconnect

TestSetIFInterconnect

SystemBus

GPIB

SystemBus

GPIB

SystemBus

40102ARack

FillerPanel

46298M

DrawerUnit

GPIBSystemBus

10MHzIn

TriggerIn

10MHzRefInput

10MHzRefOutput

TriggerOutput

10MHzRefOutput

10MHzREF

TriggerIN

10MHzREF

83621A/B

LOSource

45MHzto20GHz

83651A/B

RFSource

45MHzto50GHz

IF,75-110GHz

Band

IF,50-75GHz

Band

IF,2-50GHz

Band

IF,45MHz-2GHz

Band

Option005

IF,75-110GHz

Band

IF,50-75GHz

Band

IF,2-50GHz

Band

IF,45MHz-2GHz

Band

Option005

Whenchanging A16: SaveEEPROM fromoldA16 levelingDAC boardtoretain calibration constants.

Millimeter

Wave

Controller

Option005

RegulatorBoard

9PowerSupply

LEDsforALL

PowerSupplies

+5VLEDFront

Panel

PowerSwitch

4LEDs

2GHz

GPIBBoard

45MHzto

GPIBSystemBus

TestHead(1of2)

SLOPEAMP

50MHz110MHz

45MHz-

50GHz

8-18dB

SupplyLEDsforallPowerSupplies

2-50GHz

<2GHz

2-50GHz

<2GHz

MicrowaveSubassembly

BiasBoardsandPower

Splitter

75-110GHz

PREAMP

50-75GHz

SLOPEAMP

<50GHz

Combiner

Splitter

75-110GHz

50-75GHz

45MHzto50GHzBothONDS7andDS9

50GHzto75GHzDS7OFFDS9ON

75GHzto110GHzDS9OFFDS7ON

Combiner

Splitter

(Incident)

<50GHz

DS7andDS9LEDs(Yellow)

referencea1,a2

75-110GHz

(Reflectedor

50-75GHz

<50GHz

Combiner

Splitter

Transmitted)

testb1,b2

MillimeterWaveSubassembly +/-7VoltONLEDFrontPanel

Connector-TestPort

1mmM/F (partnumber 85104-60061)

TestPort

(1of2)

ToSheet2

rr52c

8510XFSystemLevelTroubleshootingBlockDiagram(CRT/LCD)(Sheet1of2)

GPIB System Bus

From Sheet 1

10 MHz REF

Trigger IN

Self Test (1-14), Running Error Messages (15-41), Unratioed Power Test (42), LEDs/GPIB Addresses/Configuration Switch Settings

PC/CONTROLLER

GPIB

(VGA Type

Connector)

85101-60263

A11 DISPLAY SECTION

(In 8510XF for blanking only)

69261

85102-69272

B1 FAN

08756-20073

FAN REPLACEMENT KIT

for 85102A

08756-60074

GPIB

MOTHERBOARD

CAPACITORS

69272

GPIB

7167

0950-3488

SELF TESTS

1. A5 PROCESSOR EPROM (self test and service program PROM using checksum)

2. A5 PROCESSOR RAM (test processor memory using data complement technique)

3. A7 DATA BUS TEST (test I/O data bus)

4. A4 DISPLAY PROCESSOR

5. A4 DISPLAY RAM

6. A7 TIMER/CLOCK/RS – 232

7. A7 PUBLIC GPIB (Read/Write test of GPIB register)

8. A7 SYSTEM BUS (Read/Write) test of system bus register)

9. INTERRUPT SYSTEM (test interrupts)

10. A5 MULTIPLIER (PERFORMS a complex multiply)

11. A7 DISC CONTROLLER

12. A6 NON-VOLATILE MEMORY TEST (read/write test)

13. IF DETECTOR DATA (read/write test data and address lines)

14. KEYBOARD (read 85101C keyboard for a stuck key)

RUNNING ERROR MESSAGES

15. FAILED PRETUNE/LOST PRETUNE

16. NO IF FOUND

17. PHASE LOCK FAILURE

18. PHASE LOCK LOST

19. VTO OVER-RANGE

20. ADC CAL FAILED

21. IF CAL FAILED – REFERENCE; IF CAL FAILED – TEST; IF CAL FAILED – BOTH (channels)

22. ADC NOT RESPONDING

23. IF OVERLOAD (External level of 8360 can cause this.)

24. AUTORANGE CAL FAILED

25. SOURCE SLEEP SYNC ERROR

26. SWEEP TIME TOO FAST

27. SOURCE (GPIB) SYNTAX ERROR

28. TEST SET (GPIB) SYNTAX ERROR

29. SYSTEM BUS ADDRESS ERROR

30. SYSTEM BUS SRQ ERROR

31. UNABLE TO LOCK TO EXT 10 MHz REF

32. ERROR: SYSTEM KEY NOT INSTALLED; CAUSED BY SECURITY KEY MISSING, BAD I/O, BAD A8 CONNECTOR, BAD MOTHER-BOARD. CAUTION: OPTIONAL FUNCTION: NOT INSTALLED CAUTION: TIME DOMAIN KEY NOT INSTALLED

33. DISC HARDWARE PROBLEM

34. DISC COMMUNICATION ERROR

35. INITIALIZATION FAILED

36. DISC MEDIA WEARING OUT - REPLACE SOON

8360 – SERIES SOURCES RUNNING ERROR MESSAGES

37. FAILURE – FAULT INDICATOR ON

38. FAILURE – RF UNLOCKED

39. FAILURE – OVERMODULATION

40. FAILURE – SELF TEST FAILURE

41. INVALID SETUP – CHECK SYSTEM BUS CONFIGURATION

OTHER TROUBLESHOOTING HINTS

42. Perform the unratioed power test for a1, a2, b1, and b2. Refer to 'System Maintenance, Troubleshooting' in the 8510XF Operating and Service Manual, E7350-90001.

43. The A4 GSP and the A11 display must be working in order for a normal display to be on the CRT.

44. If self test 11 passes, try to initialize a blank disc to further test the A2 disc drive.

45. A18 (85102) ANALOG TO DIGITAL CONVERTER TEST When you first turn the instrument ON, if the noise on the trace is greater than 1 dB, then the A18 board may be faulty.

If you cycle the AC power (Off, then On), the noise may disappear. If it does, there is probably a malfunction with the A18 A/D board although no apparent symptoms are present. There also may be no Running Error Messages, Self Test Failures or Service Program test failures.

If this trace noise disappears when the POWER is cycled, the test has FAILED and the A18 board should be REPLACED.

NOTE: A16, A23, A22 are not used for 8510XF operation; that is, phase lock none, except for some signal transfers from LPTHLD, etc.

rr518c

8510XF System Level Troubleshooting Block Diagram (CRT) (Sheet 2 of 2)

From Sheet 1

GPIB System Bus

10 MHz REF

Trigger IN

Self Test (1-14), Running Error Messages (15-41), Unratioed Power Test (42), LEDs/GPIB Addresses/Configuration Switch Settings

PC/CONTROLLER

GPIBGPIB

(VGA Type Connector)

85101-60263

MOTHERBOARD

CAPACITORS

85101-60298

85101-60300

A16 INVERTER BOARD

0950-3379 (A16 Only)

(In 8510XF for blanking only)

69261

69272

B1 FAN

08756-20073

FAN REPLACEMENT KIT

for 85102A

08756-60074

69272

85101-60296

GPIB

A15 LCD ASSEMBLY

85101-60297 (Includes A16)

7167

0950-3488

SELF TESTS

1. A5 PROCESSOR EPROM (self test and service program PROM using checksum)

2. A5 PROCESSOR RAM (test processor memory using data complement technique)

3. A7 DATA BUS TEST (test I/O data bus)

4. A14 DISPLAY PROCESSOR

5. A14 DISPLAY RAM

6. A7 TIMER/CLOCK/RS – 232

7. A7 PUBLIC GPIB (Read/Write test of GPIB register)

8. A7 SYSTEM BUS (Read/Write test of system bus register)

9. INTERRUPT SYSTEM (test interrupts)

10. A5 MULTIPLIER (PERFORMS a complex multiply)

11. A7 DISC CONTROLLER

12. A6 NON-VOLATILE MEMORY TEST (read/write test)

13. IF DETECTOR DATA (read/write test data and address lines)

14. KEYBOARD (read 85101C keyboard for a stuck key)

RUNNING ERROR MESSAGES

15. FAILED PRETUNE/LOST PRETUNE

16. NO IF FOUND

17. PHASE LOCK FAILURE

18. PHASE LOCK LOST

19. VTO OVER-RANGE

20. ADC CAL FAILED

21. IF CAL FAILED – REFERENCE;

IF CAL FAILED – TEST; IF CAL FAILED – BOTH (channels)

22. ADC NOT RESPONDING

23. IF OVERLOAD (External level of 8360 can cause this.)

24. AUTORANGE CAL FAILED

25. SOURCE SLEEP SYNC ERROR

26. SWEEP TIME TOO FAST

27. SOURCE (GPIB) SYNTAX ERROR

28. TEST SET (GPIB) SYNTAX ERROR

29. SYSTEM BUS ADDRESS ERROR

30. SYSTEM BUS SRQ ERROR

31. UNABLE TO LOCK TO EXT 10 MHz REF

32. ERROR: SYSTEM KEY NOT INSTALLED; CAUSED BY SECURITY KEY MISSING, BAD I/O, BAD A8 CONNECTOR, BAD MOTHER-BOARD. CAUTION: OPTIONAL FUNCTION: NOT INSTALLED CAUTION: TIME DOMAIN KEY NOT INSTALLED

33. DISC HARDWARE PROBLEM

34. DISC COMMUNICATION ERROR

35. INITIALIZATION FAILED

36. DISC MEDIA WEARING OUT - REPLACE SOON

8360 – SERIES SOURCES RUNNING ERROR MESSAGES

37. FAILURE – FAULT INDICATOR ON

38. FAILURE – RF UNLOCKED

39. FAILURE – OVERMODULATION

40. FAILURE – SELF TEST FAILURE

41. INVALID SETUP – CHECK SYSTEM BUS CONFIGURATION

OTHER TROUBLESHOOTING HINTS

42. Perform the unratioed power test for a1, a2, b1, and b2. Refer to

'System Maintenance, Troubleshooting' in the 8510XF Operating and Service Manual, E7350-90001.

43. The A14 GSP and the A15 display must be working in order for a normal

display to be on the LCD.

44. If self test 11 passes, try to initialize a blank disc to further test the A2

disc drive.

45. A18 (85102) ANALOG TO DIGITAL CONVERTER TEST

When you first turn the instrument ON, if the noise on the trace is greater than 1 dB, then the A18 board may be faulty.

If this trace noise disappears when the POWER is cycled, the test has FAILED and the A18 board should be REPLACED.

NOTE: A16, A23, A22 are not used for 8510XF operation; that is, phase lock none, except for some signal transfers from LPTHLD, etc.

rr53c.cdr

8510XF System Level Troubleshooting Block Diagram (LCD) (Sheet 2 of 2)

Agilent 8510XF Service Quick Reference Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Notice

What You’ll Find in This Manual…

Warranty

DOCUMENTATION WARRANTY

Assistance Product maintenance agreements and other customer assistance agreements

Contacting Agilent

Safety and Regulatory Information

Safety Earth Ground

BeforeApplying Power Verify that the product is conﬁgured to match the available main power

Typeface Conventions

Contents

System Overview The 8510XF network analyzer system has been designed to measure

System Diagrams

Front View Cabling Diagram

Rear View Cabling (rack mounted source)

Rear View Cabling (table mounted source)

8510XF Option 006

2 Upgrading a Source for 8510XF

3 Making 8510XF Adjustments

Procedure 1. Vertical Alignment Adjustment

Procedure 2. DeGaussing (Demagnetizing) the Display

Procedure 3. 8360 Series Sources Full User CAL

Procedure 4. Power Level Calibration

When to Verify After installation of the system is complete, a performance veriﬁcation is

Materials Required The following materials are required to run the tests:

Calibration and Frequency Ranges

Verification Setup

General Preparation Prepare for performance veriﬁcation by completing the following steps:

Software Installation In order to verify performance, you must ﬁrst install BASIC for Windows

Verification Procedures

CW Frequency Accuracy Test

Materials Required The following materials are required to run the tests:

Procedure 1. Connect the equipment as shown in Figure 4-1.

Performance Test Record

8510XF Full 2-Port Calibration Menus

5 System Level Servicing & Troubleshooting

Theory of Operation

Millimeter Wave Controller

Frequency Bands Each frequency band uses its own set of mixers. The bands are as follows.

8510XF Firmware Specifications

Hardware States The hardware states speciﬁc to the 8510XF are as shown in Table 5-3.

Instrument States Table 5-4 shows the instrument states speciﬁc to the 8510XF system.

Power Level Check

Test Plots Power level check (low RF power)