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1760 Series Component Waveform/Vector Monitor User Manual 4-25
Calibration
Instrument gain may require readjustment for special moni-
toring applications. To prevent erroneous m easurements,
gain should be adjusted only by qualified personnel. Normal
instrument calibration, performance verification, and service
maintenance are covered in the service manual, which will
be published as a separate volume.
Adjusting Instrument Gain
Instrument gain can be adjusted through the CONFIG—CALI-
BRATE
menu. CONFIG menu is described on page 3-20.
Set Vertical
Gain
1. To adjust vertical gain, select
WAVEFORM display mode
and push the
CONFIG menu button. Select CALIBRATE,
then
CAL SIG ON and GAIN CAL ON.
a. Turn the VCALcontrol until the signal amplitude is
140.0 IRE (1000 mV for PAL), as read on the
graticule. This adjustment may be made with the
internal calibrator (
CAL SIG) or an applied reference
signal.
b. Pushing
RESET V CAL will cancel any gain adjust-
ment and reinstate the factory gain setting.