Table 2-2. Adjustable Components (1 of 3)

Reference

 

Adjustment

Adjustment

Description

Designator

 

 

Name

Number

 

A2R206

DGTL X

GAIN

2

Adjusts the horizontal gain in the X line generator.

A2R209

SWEEP

 

OFFSET

2

Adjusts the beginning of the trace to the leftmost

 

 

 

 

 

 

 

vertical graticule line in fast-analog, zero-span mode.

A2R215

DGTL Y

GAIN

2

Adjusts the vertical gain in the Y line generator.

A2R218

VIDEO

OFFSET

2

Adjusts the vertical position in fast-analog, zero-span

 

 

 

 

 

 

 

to match the digital zero-span input.

A2R262

STOP BLANK

2

Adjusts the blanking at the end of a vector on

 

 

 

 

 

 

 

the display.

A2R263

START

BLANK

2

Adjusts the blanking at the start of a vector on

 

 

 

 

 

 

 

the display.

A2R268

VIDEO

GAIN

2

Adjusts the vertical gain in fast-analog, zero-span

 

 

 

 

 

 

 

to match with the digital zero-span input.

A2R271

SWEEP

 

GAIN

2

Adjusts the end of the trace to the rightmost

 

 

 

 

 

 

 

vertical-graticule line in fast-analog,

 

 

 

 

 

 

 

zero-span mode.

A4C707

FM DEMOD

13

Adjusts the FM demodulation for a peak response.

A4R445

LIMITER

PHASE

5

Adjusts Limiter Phase for peak response

A4R531

LOG

AMP

TOS

5

Minimizes Log error near Top of Screen

A4R544

LIN

FIDELITY BOW

5

Minimizes Linearity Fidelity error.

A4R826

CAL OSC

AMPTD

4

Sets calibration oscillator output power

 

 

 

 

 

 

 

(nominally -35 dBm). This power is injected into

 

 

 

 

 

 

 

the IF during the AUTO IF ADJUST routines.

A5L300

LC CTR 1

 

3

Adjusts center frequency of first stage of LC

 

 

 

 

 

 

 

bandwidth filter to 10.7 MHz.

A5L301

LC CTR 2

 

3

Adjusts center frequency of second stage of LC

 

 

 

 

 

 

 

bandwidth filter to 10.7 MHz.

A5L700

LC CTR 3

 

3

Adjusts center frequency of third stage of LC

 

 

 

 

 

 

 

bandwidth filter to 10.7 MHz.

A5L702

LC CTR 4

 

3

Adjusts center frequency of fourth stage of LC

 

 

 

 

 

 

 

bandwidth filter to 10.7 MHz.

A5R343

15 DB ATT

4

Adjusts the attenuation of the Reference 15 dB

 

 

 

 

 

 

 

attenuator for 15 db between minimum and

 

 

 

 

 

 

 

maximum attenuation.

A5T200

XTAL CTR 1

3

Adjusts center frequency of first stage of crystal

 

 

 

 

 

 

 

bandwidth filter to 10.7 MHZ.

A5T202

XTAL CTR 2

3

Adjusts center frequency of second stage of crystal

 

 

 

 

 

 

 

bandwidth filter to 10.7 MHZ.

 

 

 

 

 

 

 

 

2-6 Adjustment Procedures