Keysight E8257D Option H1K Kurzanleitung

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Keysight E8257D/67D PSG

Signal Generators Add Option UNR

(Enhanced Phase Noise)

Kit Part Number E8251-60380

Installation Note

Part Number: E8251-90380

Printed in USA August 2014

Notice

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

Agilent Technologies makes no warranty of any kind with regard to this material, including but not

limited to, the implied warranties of merchantability and fitness for a particular purpose. Agilent

Technologies shall not be liable for errors contained herein or for incidental or consequential

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

Add Option UNR (Enhanced Phase Noise)

Kit Part Numbers E8251-60380

Introduction

This upgrade kit adds Option UNR (Enhanced Phase Noise) 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. Install the A32 10 MHz Crystal Oscillator.

4. Install the A7 Reference assembly.

5. Verify proper installation of Option UNR.

6. Re-assemble the signal generator.

7. 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: . . . . . . . . . . . . . . . 2.0 hours

Estimated Verification Time: . . . . . . . . . . . . . . . 2.0 hours

Installation Kit Parts List

Tools Required

• TORX T-10 driver

• TORX T-15 driver

• TORX T-20 driver

• Needle-nose pliers

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.

Item Quantity Description Part Number

11Installation Note E8251-90380

2 2 Screw M3x0.5 8mm-LG 0515-0372

3 1 A32 10 MHz Crystal Oscillator E8251-60071

4 1 A7 Reference Board (Option UNR) E8251-60048

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 the operation 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, E8251-90359, 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

Install the A32 10 MHz Crystal Oscillator

Refer to Figure 3.

1. Position the signal generator with the rear panel facing you.

2. Using a T-10 driver, install the three screws (1) to secure the A32 10 MHz Crystal Oscillator to the rear

panel.

3. Connect A32W1 bias cable to the A21 Rear Panel Interface Board, A21P2.

4. Using needle-nose pliers, connect W48 flexible cable from 10 MHz EFC (rear panel connector) to A32J1.

5. Using needle-nose pliers, connect W47 flexible cable from J1041 of the A31 Motherboard to A32J2.

Figure 3 A32 10 MHz Crystal Oscillator

Install the New A7 Reference Board

Refer to Figure 4.

1. Position the signal generator with the front panel facing you.

2. Lift the retention levers and disconnect the A7 Reference board from the A31 Motherboard.

3. Lift the board out of the slot.

4. Install the new A7 Reference board into the empty slot.

Figure 4 A7 Reference

Verify Proper Installation of Option UNR

1. Press: Utility > Instrument Info/Help Info > Options Info.

2. Make sure Option UNR is listed.

NOTE If you enable an option that does not have the required hardware installed, the menus for

that option will be activated but the option cannot operate.

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