56 Chapter2
Adjustment Procedures
Introduction
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.
Table 2-3 Factory Selected Components
Reference
Designator
Adjustment
Number
Basis of Selection
A5C204 3 Selected to optimize center frequency of LC tank that loads the crystal.
A5C216 3 Selected to optimize center frequency of LC tank that loads the crystal.
A5C326 3 Selected to optimize LC pole center frequency.
A5C327 3 Selected to optimize LC pole center frequency.
A5C505 3 Selected to optimize center frequency of LC tank that loads the crystal.
A5C516 3 Selected to optimize center frequency of LC tank that loads the crystal.
A5C717 3 Selected to optimize LC pole center frequency.
A5C718 3 Selected to optimize LC pole center frequency.
A15U802 16 Selected to set the gain of the second IF to 12 dB.
Table 2-2 Adjustable Components
Reference
Designator
Adjustment
Name
Adjustment
Number
Description
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