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Adjustment Procedures
5–2
1780R-Series Service Manual
Figure 5–1: Simplified representation of the 1780R-Series Video Measurement Set,
showing the location of the four control groups
The Precision Measurement Control is multifunctional. Its function is assigned
either by the accompanying switches or through one of the CRT displayed
menus. The current function for the control is always denoted on the appropriate
CRT by a circle surrounding the related readout. See Figure 5–2 for a sample
menu. When touch-screen menus are present, simply touching a readout transfers
the Precision Measurement Control to that function.
CALIBRATE button and the
button below the Waveform CRT
are On. The menu shows that
CAL SIGNAL-ON and VERT
CAL are selected. The Precision
Measurement control is used to
set output gain as described in
Step 18k.
Figure 5–2: Calibrate menu as displayed on the Vectorscope CRT