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Introduction
This upgrade kit adds Option UNX (Ultra-Low Phase Noise Performance) to an E8257D (Analog) or E8267D (Vector) PSG
Signal Generator. This kit applies to instruments that have either a standard reference assembly or Option UNR.
Installation includes the following major steps, starting on page 7:
1. Check signal generator functionality.
2. Record A31 Motherboard version number.
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3. Check firmware version and upgrade if <C.04.23.
4. Update the Arrays if Serial Number Prefix is < US/MY 4805
5. Update the Arrays if Serial Number Prefix is ≥ US/MY 5150
6. Remove the outer and inner signal generator covers.
7. Remove the A32 10 MHz Crystal Oscillator (for instruments with Option UNR).
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8. Install the A32 10 MHz Crystal Oscillator.
9. Replace the A31L400 (E8257D) or A31L44 (E8267D) (for instruments with motherboard versions less than A0101)
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10. Install W122 Cable and 50 Ohm termination.
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11. Connect W135 to W122.
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12. Install the A7 Reference assembly.
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13. Install A43 board and cables.
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14. Activate Option UNX
15. Verify proper installation of Option UNX.
16. Re-assemble the signal generator.
17. Verify signal generator calibration.
1. For instruments with serial prefixes <US4805/MY4805.
2. For instruments with serial prefixes >
US4805/MY4805.
3. For instruments with serial prefixes >
US5150/MY5150.