User manual

Reference: Using the Menus
WFM 90 & WFM 91 User Manual
3–5
Configuration Menu INPUT Category
DC REST. Toggles the DC restorer speed between
SLOW and FAST.
REF. Toggles the video signal reference between
INT (internal) and
EXT (external reference input signal). When external reference is
selected,
EXT REF appears in the on-screen readout of the Waveform
and Vector displays. When the WFM 90 or WFM 91 loses its signal
reference,
MISSING SYNC is displayed in the on-screen readout.
Configuration Menu VAR GAIN Category
VAR GAIN. Toggles the Variable Gain mode
ON and OFF. When ON
is selected, the right two Bezel Buttons are assigned to adjusting the
signal gain. The Waveform or Vector display modes must be selected
in order to adjust variable gain.
The first press of one of the right two Bezel Buttons removes the
Configuration category list over the left Bezel Button to provide
maximum signal viewing, and enables the right two Bezel Buttons to
adjust signal gain. Pressing the left Bezel Button redisplays the
Configuration category list. When the Variable Gain mode is turned
on,
GAIN UNCAL is displayed in the on-screen readout of the
Waveform, Vector, and Waveform-in-Picture display modes.
Configuration Menu VECTOR Category
BARS. Pressing this Bezel Button toggles the calibration of the
vector chrominance gain to correctly process
75% and 100%
amplitude color bar signals.
SETUP. This menu selection appears on the WFM 90 only. Pressing
this Bezel Button toggles the vector gain between correctly
processing NTSC signals with or without setup.