HP 8568B manual 124

	‘Ihble 3-2. Adjustable Components (continued)
Reference	Adjustment	Adjustment	Adjustment	Function
Designator	Name	Number
A6A12R82	E	21	Adjusts tracking at 18.6 GHz	(18.6 to 22).
A6A12R83	D	21	Adjusts tracking at 12.5 GHz	(12.5 to 18.6).
A6A12R84	C	21	Adjusts tracking at 5.8 GHz	(5.8 to 12.5).
A6A12R85	B	21	Adjusts tracking at 4 GHz (2 to 5.8).
A6A12R98	ZERO	21	Sets SWEEP + TUNE OUT zero indication.
A6A12R113	-9v	21	Sets -9 V and +9 V dc reference supplies.
A7A2C 1	400 MHz OUT	14	Peaks 400 MHz output signal.
A7A2C2	400 MHz OUT	14	Peaks 400 MHz output signal.
A7A2C3	400 MHz OUT	14	Peaks 400 MHz output signal.
A7A2C4	100 MHz	14	Adjusts VCXO frequency.
A7A4AlAlCl	FREQ ADJUST	15	Adjusts VCO frequency.
A7A4AlAlC5	PWR ADJUST	15	Adjusts VCO output level.
A8R2	+ 22V ADJUST	1	Sets +22 V de supply voltage.
AlOAlL7	50 kHz NULL	17	Nulls 50 kHz output.
A10AlL8	50 kHz NULL	17	Nulls 50 kHz output.
AlOASLll	165 MHz NULL	17	Nulls signal at 165 MHz.
AlOA3L12	160 MHz NULL	17	Nulls signal at 160 MHz.
AlOA3L13	170 MHz NULL	17	Nulls signal at 170 MHz.
AlOA4C50	160 MHz PEAK	17	Peaks 160 MHz output signal.
AlOA4Lll	VCO ADJ	17	Adjusts PLL3 VCO frequency.
AlOA4L16	160 MHz PEAK	17	Peaks 160 MHz output signal.
AlOA4L17	160 MHz PEAK	17	Peaks 160 MHz output signal.
AlOA5R2	150 MHz ADJ	17	Adjusts VCO TUNE voltage at 150 MHz.
AlOA5R4	100 MHz ADJ	17	Adjusts VCO TUNE voltage at 100 MHz.
AlOA8R4	.2 MHz	17	Sets discriminator pretune at 0.2 MHz.
AlOA8R9	.3 MHz	17	Sets discriminator pretune at 0.3 MHz.
AlOA8R25	.5 MHz SCAN	17	Adjusts frequency span accuracy (20130 sweep).
AlOA8R27	5 MHz SCAN	17	Adjusts frequency span accuracy (20/30 sweep).
Al lA2R2	;ATE BIAS ADJ	16	Adjusts CIA amplifier gate biasing.

3-10 Adjustments