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Operating Instructions
3–42
1780R-Series Operator’s Manual
Calibrate Menu
General Calibration Menu Information
The Calibrate menu is available for both vector and waveform, and
uses both CRTs.
Pushing the front-panel CALIBRATE button provides access to the
menu. Several calibration features (such as Readout Intensity) can be
selected using the touch screen menu. The settings can then be
modified (refer to the following Waveform and Vector calibration
procedures, or for more detailed procedures, refer to the 1780R-Se-
ries Service Manual). New settings are stored when the Calibrate
menu is exited.
The Calibrate menu can be exited by pushing the CALIBRATE
button again, or by pushing another menu button.
To toggle the display between vectorscope and waveform calibra-
tion, push the buttons under the CRTs. When waveform is selected,
the waveform calibrator is displayed on the right CRT, with
waveform menu selections on the left CRT (vectorscope display
blanked). When vectorscope is selected, the arrangement is reversed.
Waveform Calibration Information
The internal calibrator signal is selected by touching the <CAL
SIGNAL> area of the screen until <ON> is outlined. It automatically
reverts to <OFF> when the Calibrate menu is exited and must be
reselected (if desired) when the menu is reentered. (CAL signal is
not available in <CAL AMPL ZERO SET>.)
HORIZ POSITION KNOB CAL (present in instruments with SN
below B020245), VOLT CURSORS ZERO SET, and CAL AMPL
ZERO SET provide menu displays on the waveform CRT. The
current selection is indicated by a box on the vectorscope CRT, and
the large knob function is circled on the waveform CRT.
HORIZ CAL, EXT HORIZ CAL, VERT CAL, READOUT
INTENSITY, and TRACE ROTATION are circled when selected, to
indicate large knob assignment.
An external 1.0 volt reference signal is required to calibrate the
EXTERNAL HORIZONTAL INPUT.
Operating Instructions
3–42
1780R-Series Operator’s Manual
Calibrate Menu
General Calibration Menu Information
The Calibrate menu is available for both vector and waveform, and
uses both CRTs.
Pushing the front-panel CALIBRATE button provides access to the
menu. Several calibration features (such as Readout Intensity) can be
selected using the touch screen menu. The settings can then be
modified (refer to the following Waveform and Vector calibration
procedures, or for more detailed procedures, refer to the 1780R-Se-
ries Service Manual). New settings are stored when the Calibrate
menu is exited.
The Calibrate menu can be exited by pushing the CALIBRATE
button again, or by pushing another menu button.
To toggle the display between vectorscope and waveform calibra-
tion, push the buttons under the CRTs. When waveform is selected,
the waveform calibrator is displayed on the right CRT, with
waveform menu selections on the left CRT (vectorscope display
blanked). When vectorscope is selected, the arrangement is reversed.
Waveform Calibration Information
The internal calibrator signal is selected by touching the <CAL
SIGNAL> area of the screen until <ON> is outlined. It automatically
reverts to <OFF> when the Calibrate menu is exited and must be
reselected (if desired) when the menu is reentered. (CAL signal is
not available in <CAL AMPL ZERO SET>.)
HORIZ POSITION KNOB CAL (present in instruments with SN
below B020245), VOLT CURSORS ZERO SET, and CAL AMPL
ZERO SET provide menu displays on the waveform CRT. The
current selection is indicated by a box on the vectorscope CRT, and
the large knob function is circled on the waveform CRT.
HORIZ CAL, EXT HORIZ CAL, VERT CAL, READOUT
INTENSITY, and TRACE ROTATION are circled when selected, to
indicate large knob assignment.
An external 1.0 volt reference signal is required to calibrate the
EXTERNAL HORIZONTAL INPUT.