Tektronix TG8000 Service Manual

GPS7 module adjustment procedures
4. Set the Black le
vel:
a. Press the up (▲)ordown(▼) arrow button to select SELECT OUTPUT.
b. Press the left (◄)orright(►) arrow button to select BLACK 1,andthen
press the ENTER button.
c. Press the up (▲)ordown(▼) arrow button to select CALIBRATION.
d. Press the left (◄)orright(►)arrowbuttontoselectAMPLITUDE
CALIBRATION, and then press the ENTER button.
e. Press the left (◄)orright(►) arrow button to select the 0mVsignal.
f. Make a note of the voltmeter reading.
g. Press the left (◄)orright(►) arrow button to select the 700 mV signal.
h. Makeano
te of the voltmeter reading.
i. Subtract the voltage measured in part e. of this step (0 mV setting) from
the vol
tage measured in part g of this step (700 mV setting).
j. If the result is <698 mV or >702 mV, use the up ( ▲)ordown(▼) arrow
butto
ns to adjust the gain.
k. Repeat parts d through i o f this step until the difference between the two
signa
ls is 700 mV ± 2 m V.
l. Press the ENTER button to save the setting and exit the amplitude
cali
bration menu.
5. Set Black off set:
a. Proceeding from the previous step, use the left (◄)orright(►) arrow
button to select Offset Calibration, and then press the ENTER button.
b. Use the left (◄) or right (►) arrow button to select the
0mVsignal.
c. Measure the offset voltage.
d. If necessary, use the up (▲)ordown(▼) arrow buttons to adjust the
offset voltage to 0 V ±5 mV.
e. Press the ENTER button to save the setting and exit the offset calibration
menu.
6. Move the cable to the next output and repeat steps 3 through 5 for the
BLACK 2 and BLACK 3 outputs.
10–4 TG8000 Multiformat Test Signal Generator Service Manual

Tektronix TG8000 Specifications

General

Brand	Tektronix
Model	TG8000
Category	Portable Generator
Language	English