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Keysight E8251-60690 Installation Note
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Keysight E8251-60690 Installation Note

Keysight E8251-60690 Installation Note

E8257d/67d and e8663d psg signal generators add option uny
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Keysight E8257D/67D and E8663D PSG
Signal Generators Add Option UNY
(Enhanced Ultra-Low Phase Noise)
Kit Part Numbers: E8251-60690 and E8251-60990
Installation Note
Part Number: E8251-90396
Supersedes: July 2013
Printed in USA: August 2014

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Summary of Contents for Keysight E8251-60690

  • Page 1 Keysight E8257D/67D and E8663D PSG Signal Generators Add Option UNY (Enhanced Ultra-Low Phase Noise) Kit Part Numbers: E8251-60690 and E8251-60990 Installation Note Part Number: E8251-90396 Supersedes: July 2013 Printed in USA: August 2014...
  • Page 2 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 of merchantability and fitness for a particular purpose.
  • Page 3 Add Option UNY (Enhanced Ultra-Low Phase Noise) Kit Part Numbers: E8251-60690 Products Affected: E8257D/67D and E8663D Serial Numbers: >MY/SG/US5042xxxx Options: To Be Performed By: (X) Keysight Service Center Estimated Installation Time: 2.0 Hours Estimated Verification Time: 2.0 Hours Introd uction This upgrade kit adds Option UNY (Enhanced Ultra-Low Phase Noise Performance) to an E8257D, E8663D (Analog) or E8267D (Vector) PSG Signal Generator.

  • Page 4: Installation Kit Parts List

    Installation Kit Parts List E8251-60690 Item Quantity Description Keysight Part Number W155 Cable A33/A33 75G 8121-0646 Assembly, Frac-N, Used with Offset Loop E8251-60437 Assembly, Offset Loop E8251-60438 Oscillator Assy - UNY E8251-60798 Installation Note E8251-90396 E8251-60990 (For E8257D and E8663D with serial prefix > US5150/MY5150)

  • Page 5: Safety Considerations

    Safety Considerations Before you disassemble the signal generator, turn the power switch off and WARNING unplug the power cord. Failure to unplug the signal generator can result in personal injury. Electrostatic discharge (ESD) can damage or destroy electronic components. CAUTION All work on electronic assemblies should be performed at a static-safe workstation.
  • Page 6 Check Firmware Version and Upgrade if <C.06.15 1. Press Utility > Instrument Info/Help Mode > Diagnostic Info 2. Find the firmware information. 3. If the version of firmware is <C.06.15, upgrade the firmware. Remove the Outer and Inner Signal Generator Covers Remove the Outer Cover Refer to Figure 1.
  • Page 7 Figure 1 Outer Cover Removal Installation Note E8251-90396...
  • Page 8 Figure 2 Inner Top Cover Removal Installation Note E8251-90396...
  • Page 9 Remove the A32 10 MHz Crystal Oscillator Refer to Figure 3 for this procedure. 1. Position the signal generator with the rear panel facing you. 2. Using the needle-nose pliers, disconnect the W47 flexible cable (A31 Motherboard J1041) from A32J2. 3.
  • Page 10 Figure 3 A32 10 MHz Crystal Oscillator A32W1 A21P2 a.Used only on E8267D with serial prefix <US4824/MY4824 and all E8257D. Installation Note E8251-90396...
  • Page 11 Remove and replace A5 with A46 and A6 with A45 Refer to Figure 4. 1. Position the signal generator with the front panel facing you. 2. Lift the retention levers and disconnect the A5 Sampler, A6 Frac-N boards from the A31 Motherboard.
  • Page 12 Install new A43 board and cables (For E8257D/57N and E8663D with Serial Prefixes >= US5150/MY5150) Refer to Figure 5. 1. Position the signal generator with the front panel facing you. 2. Disconnect W139 and remove A43. 3. Replace A43 with the new part, E8251-60633 and reconnect W139. 4.
  • Page 13 Figure 6 W138 Installation Note E8251-90396...
  • Page 14 Activate Option UNY 1. Follow the instructions on the Entitlement Certificate. Verify Proper Installation of Option UNY 1. Turn the instrument on and allow it to warm up for 5 minutes. 2. Press: Utility > Instrument Info/Help Info > Options Info 3.
  • Page 15 cd "FREQ SETTLING CONST", 4, 2000 cc "FREQ SETTLING CONST" cd "FREQ FRACN VCO COLLECTOR BIAS", 0, 1.42E+03 cd "FREQ FRACN VCO COLLECTOR BIAS", 1, 0 cd "FREQ FRACN VCO COLLECTOR BIAS", 2, 1.1E+03 cd "FREQ FRACN VCO COLLECTOR BIAS", 3, 0 cd "FREQ FRACN VCO COLLECTOR BIAS", 4, 0 cd "FREQ FRACN VCO COLLECTOR BIAS", 5, 0 cd "FREQ FRACN VCO COLLECTOR BIAS", 6, 0...
  • Page 16 cd "ANALOG FM SENS FREQ", 25,+1.2500000000000E+09 cd "ANALOG FM SENS FREQ", 26,+1.2600000000000E+09 cd "ANALOG FM SENS FREQ", 27,+1.2700000000000E+09 cd "ANALOG FM SENS FREQ", 28,+1.2800000000000E+09 cd "ANALOG FM SENS FREQ", 29,+1.2900000000000E+09 cd "ANALOG FM SENS FREQ", 30,+1.3000000000000E+09 cd "ANALOG FM SENS FREQ", 31,+1.3100000000000E+09 cd "ANALOG FM SENS FREQ", 32,+1.3200000000000E+09 cd "ANALOG FM SENS FREQ", 33,+1.3300000000000E+09 cd "ANALOG FM SENS FREQ", 34,+1.3400000000000E+09...
  • Page 17 cd "ANALOG FM SENS FREQ", 65,+1.6500000000000E+09 cd "ANALOG FM SENS FREQ", 66,+1.6600000000000E+09 cd "ANALOG FM SENS FREQ", 67,+1.6700000000000E+09 cd "ANALOG FM SENS FREQ", 68,+1.6800000000000E+09 cd "ANALOG FM SENS FREQ", 69,+1.6900000000000E+09 cd "ANALOG FM SENS FREQ", 70,+1.7000000000000E+09 cd "ANALOG FM SENS FREQ", 71,+1.7100000000000E+09 cd "ANALOG FM SENS FREQ", 72,+1.7200000000000E+09 cd "ANALOG FM SENS FREQ", 73,+1.7300000000000E+09 cd "ANALOG FM SENS FREQ", 74,+1.7400000000000E+09...
  • Page 18 cd "ANALOG FM SENS KV PATH", 2,+7.4530903170857E+01 cd "ANALOG FM SENS KV PATH", 3,+7.3426594106866E+01 cd "ANALOG FM SENS KV PATH", 4,+7.2418610582953E+01 cd "ANALOG FM SENS KV PATH", 5,+7.1492158690901E+01 cd "ANALOG FM SENS KV PATH", 6,+7.0613156300065E+01 cd "ANALOG FM SENS KV PATH", 7,+6.9750742725495E+01 cd "ANALOG FM SENS KV PATH", 8,+6.8901868620436E+01 cd "ANALOG FM SENS KV PATH", 9,+6.8102687000585E+01 cd "ANALOG FM SENS KV PATH", 10,+6.6916507042832E+01...
  • Page 19 cd "ANALOG FM SENS KV PATH", 42,+6.4731511307766E+01 cd "ANALOG FM SENS KV PATH", 43,+6.4981699357234E+01 cd "ANALOG FM SENS KV PATH", 44,+6.5246890597109E+01 cd "ANALOG FM SENS KV PATH", 45,+6.5497267191135E+01 cd "ANALOG FM SENS KV PATH", 46,+6.5729810111053E+01 cd "ANALOG FM SENS KV PATH", 47,+6.5940782320637E+01 cd "ANALOG FM SENS KV PATH", 48,+6.6122506340055E+01 cd "ANALOG FM SENS KV PATH", 49,+6.6313194640184E+01 cd "ANALOG FM SENS KV PATH", 50,+6.6480019015800E+01...
  • Page 20 cd "ANALOG FM SENS KV PATH", 82,+5.7473454701720E+01 cd "ANALOG FM SENS KV PATH", 83,+5.6613949447032E+01 cd "ANALOG FM SENS KV PATH", 84,+5.5722252569846E+01 cd "ANALOG FM SENS KV PATH", 85,+5.4801189811276E+01 cd "ANALOG FM SENS KV PATH", 86,+5.3882801034067E+01 cd "ANALOG FM SENS KV PATH", 87,+5.2915851892496E+01 cd "ANALOG FM SENS KV PATH", 88,+5.1878047789246E+01 cd "ANALOG FM SENS KV PATH", 89,+5.0950022549736E+01 cd "ANALOG FM SENS KV PATH", 90,+4.9975080772126E+01...
  • Page 21 cd "SPECIALS LATCH VALUE",13,+1.1000000000000E+01 cd "SPECIALS LATCH VALUE",14,+4.3000000000000E+01 cd "SPECIALS LATCH VALUE",15,+4.3000000000000E+01 cd "SPECIALS LATCH VALUE",16,+2.7000000000000E+01 cd "SPECIALS LATCH VALUE",17,+2.7000000000000E+01 cc "SPECIALS LATCH VALUE" ky 20622 Verify Signal Generator Calibration 1. Turn the signal generator on and allow it to warm up for 30 minutes. 2.

This manual is also suitable for:

E8251-60990