Agilent Technologies 856290216 Hv Adj, FM Span, Smpl Match, VCO Range, Tripler, CAL Amptd, Gain

Table 2-2. Adjustable Components (continued)

Reference		Adjustment				Adjustment	Description
Designator			Name			Number
A5T500	XTAL		CTR		3	3	Adjusts center frequency of third stage of crystal
							bandwidth filter to 10.7 MHz.
A5T502	XTAL		CTR		4	3	Adjusts center frequency of fourth stage of crystal
							bandwidth filter to 10.7 MHz.
A6R410	HV ADJ					1	Adjusts the voltage between A6TP405 and A6TP401
							to the voltage marked on the A6Al high voltage
							module.
A14R42	6.01 GHz					7	Adjusts the main coil tune driver current at a
							YTO frequency of 6.01 GHz (near the upper YTO
							frequency limit).
A14R76	FM SPAN					7	Adjusts the FM span accuracy by affecting the
							sensitivity of the FM coil driver.
A14R93	3.2 GHz					7	Adjusts the main coil fixed driver current at a
							YTO frequency of 3.2 GHz (near the lower
							YTO frequency limit).
A15ClOO	SMPL		MATCH			6	Transforms the sampler input impedance to 50 ohms
							over the 285 to 297.2 MHz range.
A15C210	VCO		RANGE			6	Adjusts the VCO tank capacitance so that 21V
							on the VCO tune line equals 298 MHz VCO frequency.
A15C750	v c x o					18	Adjusts for maximum 600 MHz reference output.
A15C751	TRIPLER					18	Adjusts for maximum 600 MHz reference output.
A15U302	10 MHz ADJ					12	Adjusts frequency of the temperature
							compensated crystal oscillator (TCXO) to 10 MHz.
A15R561	CAL		AMPTD			10	Adjusts amplitude of the 300 MHz calibrator signal
							to -10.0 dBm.
A15R926	EXT BIAS				ZERO	14	Adjusts zero bias point of external mixer bias.
A17R4	2 GAIN					2	Adjusts maximum intensity.
A17Rll	CUTOFF					2	Adjusts intensity to turn off blanked lines.
A17R21	Z	FOCUS				2	Adjusts focus for lines of different brightness.
A17R26	X	FOCUS				2	Adjusts focus at the left and right corners of the display.
A17R34	COARSE			FOCUS		2	Adjusts focus at the center of the display.
A17R55	X GAIN					2	Adjusts the horizontal-deflection amplifier gain.
A17R57	X POSN					2	Adjusts the CRT horizontal position.
A17R75	Y GAIN					2	Adjusts the vertical-deflection amplifier gain.
A17R77	Y POSN					2	Adjusts the CRT vertical position.
A17R90	TRACE			ALIGN		2	Adjusts the display axis rotation.
A17R92	DDD					2	Adjusts focus of the center of the display.
A17R93	ASTIG					2	Adjusts for the spot roundness on the CRT display.

Adjustment Procedures 2-7