Agilent Technologies HP 8566B Spécifications télécharger pdf (Page 310)

100

101

20. Last Converter Adjustments

SPECTRW

ANALYZER

Figure 3-87. Last Converter Adjustments Setup

4. Remove the RF Section right side cover (now on the left), and

remove the two screws attaching the

A6A3

Last Converter

Assembly to the RF Section chassis.

5. Disconnect cable 1 (brown) from

A6A3Jl

321.4 MHz IN, cable 2

(red) from A6A3J2 300 MHz IN, and cable 81 (gray/brown) from

A6A3J3

(21.4 MHz OUT) on the

A6A3

Last Converter Assembly.

Remove the

A6A3

Last Converter Assembly from the RF Section.

6. Adjust the five variable capacitors

A6A3AlC8,

A6A3AlC9,

A6A3AlC10,

A6A3AlC11,

and

A6A3AlC12

in the 321.4 MHz

Bandpass

Filter for maximum capacitance. The capacitors are

visible through five evenly-spaced, unlabeled access holes in the

bottom cover of the

A6A3

Last Converter Assembly; position

each capacitor with its adjustment slot vertical and plates fully

meshed. Refer to Figure 3-88 for the location of

A6A3AlC8,

A6A3AlC9,

A6A3AlC10,

A6A3AlC11,

and

A6A3AlC12.

7. Install the

A6A3

Last Converter Assembly in the RF Section using

an extender board. Reconnect cable 2 (red) to

ABA3J2

300 MHz

IN.

8. Reinstall the

A6A9

Phase Lock Assembly, the

A6AlO

Miscellaneous Bias/Relay Driver Assembly, the

A6All

Slope

Generator Assembly, and the

A6A12

YTX Driver Assembly in the

RF Section.

9. Reconnect cable 2 (red) to

A6A9Jl

300 MHz OUTPUT and cable 85

(gray/green) to A6A9J3 100 MHz INPUT.

3-170 Adjustments

1 2 ... 305 306 307 308 309 310 311 312 313 314 315 ... 404 405

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Agilent Technologies HP 8566B Spécifications Page 310

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