Agilent Technologies 856290216 service manual Adjustable Components

Table 2-2. Adjustable Components

Reference Designator

A2R152

A2R206

A2R209

A2R215

A2R218

A2R262

A2R263

A2R268

A2R271

A4C707

A4R445

A4R531

A4R544

A4R826

A5L300

A5L301

A5L700

A5L702

A5R343

A5T200

A5T202

Adjustment	Adjustment
Name	Number
16 MHz PLL ADJ	17
DGTL X GAIN	2
SWEEP OFFSET	2
DGTL Y GAIN	2
VIDEO OFFSET	2
STOP BLANK	2
START BLANK	2
VIDEO GAIN	2
SWEEP GAIN	2
FM DEMOD	13
LIMITER PHASE	5
LOG AMP TOS	5
LIN FIDELITY BOW	5
CAL OSC AMPTD	4
LC CTR 1	3
LC CTR 2	3
LC CTR 3	3
LC CTR 4	3
15 DB ATT	4
XTAL CTR 1	3
XTAL CTR 2	3

Description

Adjusts the free-running frequency of the 16 MHz CPU clock.

Adjusts the horizontal gain in the X line generator. Adjusts the beginning of the trace to the leftmost vertical graticule line in fast-analog zero-span mode. Adjusts the vertical gain in the Y line generator. Adjusts the vertical position in fast-analog zero span to match the digital zero-span input.

Adjusts the blanking at the end of a vector on the display.

Adjusts the blanking at the start of a vector on the display.

Adjusts the vertical gain in fast-analog zero span to match with the digital zero-span input. Adjusts the end of the trace to the rightmost vertical-graticule line in fast-analog

zero-span mode.

Adjusts the FM demodulation for a peak response. Adjusts Limiter Phase for peak response. Minimizes error to Top of Screen.

Minimizes Linearity Fidelity error.

Sets calibration oscillator output power (nominally -35 dBm). This power is injected into the IF during the AUTO IF ADJUST routines. Adjusts center frequency of first stage of LC bandwidth filter to 10.7 MHz.

Adjusts center frequency of second stage of LC bandwidth filter to 10.7 MHz.

Adjusts center frequency of third stage of LC bandwidth filter to 10.7 MHZ.

Adjusts center frequency of fourth stage of LC bandwidth filter to 10.7 MHz.

Adjusts the attenuation of the reference 15 dB attenuator for 15 dB between minimum and maximum attenuation.

Adjusts center frequency of first stage of crystal bandwidth filter to 10.7 MHZ.

Adjusts center frequency of second stage of crystal bandwidth filter to 10.7 MHZ.

2-6 Adjustment Procedures