Adjustable Components (2 Of 3) - HP 8560A Service Manual

Reference Adjustment
Name
XTAL CTR 3
XTAL CTR 4
HV ADJ
-10 dB ADJ
3 dB ADJ
5.01 GHz
FM SPAN
VCO RANGE
298 MHz ADJ
10 MHz ADJ
PHASE DET
BIAS
4MPLITUDE
Table 2-2. Adjustable Components (2 of 3)
Number
3
Adjusts center frequency of third stage of crystal
bandwidth filter to 10.7 MHz.
3 Adjusts center frequency of fourth stage of crystal
bandwidth filter to 10.7 MHz.
1
Adjusts the voltage between A6TP405 and A6TP401
to the voltage marked on the A6Al High Voltage
Module.
9 Offsets power level range of A10 Tracking
Generator.
9 Adjusts gain of power level range of A10
Tracking Generator.
20 Centers range of A10 Tracking Generator's
tracking oscillator.
7 Adjusts the main coil tune driver current at a
YTO frequency of 6.01 GHz (near the upper YTO
frequency limit).
7 Adjusts the FM span accuracy by affecting the
sensitivity of the FM coil driver.
7 Adjusts the main coil fixed driver current at a
YTO frequency of 3.2 GHz (near the lower
YTO frequency limit).
8 Adjusts the amplitude of the first LO by changing
the reference voltage for the leveling loop.
Adjusts the gate bias for the A7 LO Distribution
8
Amplifier.
6 Transforms the sampler input impedance to 50 ohms
6 Adjusts the VCO tank capacitance so that 21 V
on the VCO tune line equals 298 MHz VCO frequency.
17 Fine adjusts the 298 MHz SIG ID Oscillator
frequency to optimize its performance.
6 Adjusts the signal power level to the Sampler.
12 Adjusts frequency of the temperature
compensated crystal oscillator (TCXO) to 10 MHz.
Adjusts bias at pin 3 of phase detector A15U408 to 1.80 V.
6
Adjusts input power to ECL divide-by-two chip.
18
Description
Adjustment Procedures 2-7