Tektronix 1760 Manuel d'utilisateur télécharger pdf (Page 125)

1760 Series Component Waveform/Vector Monitor User Manual 4-25

Calibration

Instrument gain may require readjustment for special m oni-

toring applications. To prevent erroneous measurements,

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 a s a separate volume.

Adjusting Instrument Gain

Instrument gain c an 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.

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Tektronix 1760 Manuel d'utilisateur Page 125