Tektronix WFM 601i, Руководство пользователя

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Functional Overview
2–20
Rev May 1994
WFM 601i Serial Component Monitor
MISSING VID – The Alarm light is turned on when the the input serial
signal level drops below a preset threshold (determined by the serial
receiver).
FULL FIELD CRC ERROR – The transmitted cyclical redundancy
checksum (CRC) does not match the actual CRC for the last video field.
ACTIVE PIC CRC ERROR – The transmitted CRC does not match the
actual CRC for the last active picture region.
FMT ERROR – A serial format error has been detected.
GAMUT Provides the means to turn on or off the gamut error alarm. This
submenu has only two bezel button options.
MONITOR OUT – When set to Alarm, detected gamut errors will cause a
blinking “bright-up” of the out-of-gamut areas on the picture monitor out
signal.
SCREEN MSG – When set to Alarm, detected gamut errors will turn on a
GAMUT ERROR readout in the lower left corner of the CRT.
FORMAT Selects the format of the picture monitor out signal and the scanning
standard expected by the WFM 601i.
MONITOR OUT AS – Configures the analog component picture monitor
out signal as either Y, Pb, Pr, (YPBPR) or as GBR (GBR). Composite sync
is added to the Y or G channel.
STANDARD – Selects the scanning standard that the waveform monitor
expects. This choice affects the monitor sweep rates and the line selector. In
AUTO the monitor itself selects either 525 or 625 line operation, based upon
the detected field rate (60 Hz vs 50 Hz).
CALIBRATE
Allows vertical and horizontal gain calibration, with the aid of a
700 mV, 100 kHz calibrator signal. The V CAL knob adjusts vertical gain
calibration while the H CAL knob adjusts the horizontal gain calibration.
Selections for the CALIBRATE menu are only present when the instrument is
operating in the Waveform or Parade display modes.
CAL SIG – Turns on or off the calibrator signal. Calibrator signal is
synchronized in order to provide an accurate 100 kHz horizontal timing
standard.
GAIN CAL – Enables or disables the V CAL and H CAL controls. If the
current calibration is misadjusted, readout adjacent to two of the bezel
buttons assigns them to reset the calibration. Pushing the RESET V or
H CAL returns the corresponding gain to original calibrated setting. When