Keysight E8251-60386 Installations- und Betriebshandbuch

Notice: This document contains references to Agilent.

Please note that Agilent’s Test and Measurement busi-

ness has become Keysight Technologies. For more in-

formation, go to www.keysight.com.

Keysight E8257D/67D PSG Signal

Generators Add Option 1ED

(Type-N Connector)

Kit Part Numbers:

E8251-60386 - For Front RF Output

E8251-60396 - For Rear RF Output

Installation Note

Part Number: E8251-90386

Printed in USA August 2014

Notice

The information contained in this document is subject to change without notice.

Keysight Technologies makes no warranty of any kind with regard to this material, including but

not limited to, the implied warranties ofmerchantability andfitness for a particular purpose.

Keysight Technologies shall not be liable for errors contained herein orfor incidental or

consequential damages in connection with the furnishing, performance, or use of this material.

Add Option 1ED (Type-N Connector)

Kit Part Numbers: E8251-60386 and E8251-60396

Introduction

This upgrade kit adds Option 1ED (Type-N Connector) to the E8257D (Analog) and E8267D (Vector) PSG

Signal Generators.

Installation includes the following major steps, starting on page 5:

1. Check signal generator functionality.

2. Remove the outer and inner signal generator covers.

3. Remove the front panel (for instruments with front RF Output Connectors only)

4. Install Option 1ED.

5. Re-assemble the signal generator.

6. Verify signal generator calibration.

Product Affected: . . . . . . . . . . . . . . . . . . . . . . . . . E8257D/67D

Serial Numbers: . . . . . . . . . . . . . . . . . . . . . . . . . . All

Options: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

To Be Performed By: . . . . . . . . . . . . . . . . . . . . . . (X) Agilent Technologies Service Center

(X) Personnel Qualified by Agilent Technologies

(X) Customer

Estimated Installation Time: . . . . . . . . . . . . . . . 1.0 hour

Estimated Verification Time: . . . . . . . . . . . . . . . 1.0 hour

Installation Kit Parts List

Tools Required

• TORX T-10 driver

• TORX T-15 driver

• TORX T-20 driver

• 5/16” open-ended wrench

• Needle-nose pliers

Table 1 E8251-60386, RF Front Output

Item Quantity Description Part Number

11Installation Note E8251-90386

2 1 Type-N Connector Assembly E8251-60106

Table 2 E8251-60396, RF Rear Output

Item Quantity Description Part Number

11Installation Note E8251-90386

2 1 Type-N Connector Assembly E8251-60107

Safety Considerations

WARNING Before you disassemble the signal generator, turn the power switch off

and unplug the power cord. Failure to unplug the signal generator can

result in personal injury.

CAUTION Electrostatic discharge (ESD) can damage or destroy electronic components. All

work on electronic assemblies should be performed at a static-safe workstation.

Check Signal Generator Functionality

Use the following procedure to confirm that the signal generator powers up and the internal check

identifies no errors. The internal check evaluates theoperation of the signal generator and returns an error

message if it detects a problem.

NOTE When the signal generator is first connected to ac line power, the error message

ERROR 514, Reference Oven Cold occurs which causes both the OVEN COLD annunciator

and the ERR annunciator to turn on.

After approximately five minutes, the OVEN COLD annunciator automatically clears, but the

ERR annunciator remains on until all errors are cleared from the error queue.

1. Turn on the signal generator and let it warm up for at least five minutes.

2. Run the signal generator self-test by pressing Utility > Instrument Info/Help Mode > Self Test >

Run Complete Self Test. Upon completion a summary of the self-test will be displayed. Use the

E8257D/67D PSG Service Guide to troubleshoot any failures detected by the test.

NOTE Some circuits may require up to 50 minutes to warm up before passing the self-test. If

self-tests continue to fail after 50 minutes of warm up, troubleshoot the instrument.

3. Check to see if the ERR annunciator is on.

•IftheERR annunciator is on, review the error messages in the error queue by pressing

Utility > Error Info. The first page of error messages in the error queue appears in the display text

area. (Refer to the signal generator error messages document for information about each error

message.)

After resolving all problems causing errors, press Clear Error Queue(s).

•IftheERR annunciator is off, the signal generator functionality check has passed.

Remove the Outer and Inner Signal Generator Covers

Remove the Outer Cover

Refer to Figure 1.

1. Disconnect the power cord.

2. Using a T-20 driver, loosen the two screws (1) and remove the strap handle (2).

3. Using a T-15 driver, remove the center screws (3) on the four rear-panel feet (4).

4. Remove the four bottom feet (5) from the cover by lifting the tab and sliding the foot toward the tab.

5. Place the signal generator on its side.

6. Tilt the signal generator forward and slide the outer cover (6) back to remove it from the frame.

Remove the Inner Top Cover

Refer to Figure 2.

1. Using a T-10 driver, remove the screws (1) from the inner-top cover (2). There are twelve screws for

E8257D and eleven screws for E8267D.

2. Remove the inner-top cover.

Figure 1 Outer Cover Removal

Figure 2 Inner Top Cover Removal

Remove Front Panel (Instruments with Front RF Output Connectors Only)

Refer to Figure 3

1. Using the T-10 driver, remove the four screws from the Baseband Generator cover (E8267D only).

2. Using the T-15 driver, remove the six screws (1) from the sides of the frame.

3. Using the T-10 driver, remove one screw from the top (2) and one screw from bottom (3) of the frame.

CAUTION Before removing the front panel from the signal generator, lift and support the front of the

signal generator’s frame.

4. Slide the front panel over the RF output connector.

5. Using the needle-nose pliers, disconnect the following flexible cables:

• W1 (EXT 1 INPUT) from the A11 Pulse/Analog Modulation Generator J401.

• W2 (EXT 2 INPUT) from the A11 Pulse/Analog Modulation Generator J402.

• W3 (LF OUTPUT) from the A11 Pulse/Analog Modulation Generator J403.

• W4 ALC INPUT) from the A10 ALC J4.

• W5 (PULSE/TRIGGER GATE INPUT) from the A11 Pulse/Analog Modulation Generator J201.

• W6 (PULSE VIDEO OUTPUT) from the A11 Pulse/Analog Modulation Generator J203.

• W7 (PULSE SYNC OUTPUT) from the A11J202.

• W49 (I IN) from the A13J7 (E8267D only).

• W50 (Q IN) from the A13J8 (E8267D only).

• W51 (DATA) from the A31J500 (E8267D only).

• W52 (DATA CLOCK) from the A31J501 (E8267D only).

• W53 (SYMBOL SYNC) from the A31J502 (E8267D only).

6. Disconnect the A1W1 display cable from the A31 Motherboard P13.

7. Disconnect the A4W1 inverter cable from the A31 Motherboard P12.

8. Disconnect the W9 ribbon cable from the A31 Motherboard P11.

9. Remove the front panel.

Figure 3 Front Panel Removal

Install Option 1ED (Instruments with Front RF Output Connectors)

1. Using the 5/6” open-wrench, remove the semi-rigid cable connected to the RF output connector.

2. Using the T-10 driver, remove the screw securing the connector to the instrument. The screw is on the

outside edge of the connector.

3. Remove the old RF Output connector.

4. Install the Option 1ED Type-N connector by reversing the removal process, steps 1 and 2.

5. Reinstall the front panel by reversing the order of removal, see page 8.

Install Option 1ED (Instruments with Rear RF Output Connectors)

1. Using the 5/6” open-wrench, remove the semi-rigid cable connected to the RF output connector.

2. Using the T-10 driver, remove the two screws securing the connector to the rear panel of the instrument.

3. Remove the old RF Output connector.

4. Install the Option 1ED Type-N connector by reversing the removal process, steps 1 and 2.

Re-Assemble the Signal Generator

Refer to Figure 1 and Figure 2.

1. Reinstall the inner and outer instrument covers by reversing the order for removal.

2. Torque all T-10 screws to 9 in-lbs.

3. Torque all T-15 and T-20 screws to 21 in-lbs.

Verify Signal Generator Calibration

1. Turn the signal generator on and allow it to warm up for 30 minutes.

2. Perform the following adjustment and performance tests to verify signal generator calibration. Refer to

the PSG Family Signal Generators Service Software:

• Power Flatness Calibration

•SelfTests

• Maximum Leveled Output Power

• Power Level Accuracy

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