1760 SeriesComponent Waveform/Vector Monitor User Manu al 4-25
Calibration
Instrument gain may require readjustment for special moni-
toring applications. To prevent erroneous measurements,
gain should be adjusted only by qualified personnel. Normal
instrument calibration, performance verifi cation, and service
maintenance are coveredin 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. Toadjust vertical gain, select WAVEFORM display mode
and push the CONFIG menu button. Select CALIBRATE,
then CAL SIG ON and GAINCAL ON.
a. Turn the VCALcontrol until the signal amplitudeis
140.0 IRE (1000 mV for PAL),a sre ad on the
graticule. Thisadjustment may be made with the
internal calibrator(CAL SIG ) oran applied reference
signal.
b. Pushing RESET V CAL will cancel any gain adjust-
ment and reinstate the factorygain setting.