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