Tektronix TG8000 Service Manual

HD3G7 module adjustment procedures
6. Calculate the c
orrected RMS sine wave amplitude:
7. Record the result in the SDI Output Amplitude table. (See Table 11-2.)
8. Calculate the total system attenuation factor:
.
9. Record this total system attenuation factor in the SDI Output Amplitude table.
(See Table 11-2.)
10. Enter the attenuation factor value into the oscilloscope:
a. On the oscilloscope, press the SETUP D IALOG button.
b. Select the “Vert” tab from the top of the setup page.
c. Select the “External Attenuation” box, and then enter the attenuation
factorcalculatedinstep8above.
To adjust the SDI output
amplitude
Usethisproceduretoadjustthe SDI output amplitude:
1. Restart the instrument in Factory mode:
a. Press and hold the MODULE, ENTER,andFront Panel ENABLE
buttons simultaneously.
b. Continue holding the buttons until the message TG8000 Booting...
displays.
c. When the message TG8000 Booting... displays, release the MODULE
and ENTER buttons. Continue holding the Front Panel ENABLE
button.
d. When the mes
sage TG8000 Start up with Factory Mode displays,
release the Front Panel ENABLE button.
2. Connect the 50 Ω cable from the HD3G7 TRIGGER OUTPUT connector,
using the BNC to SMA adapter (with or without the 6 dB attenuator) to the
oscilloscope Trigger Direct input.
3. Connect the 1 m high-bandwidth cable from the HD3G7 Signal 1 output to
the TCA75 adapter in the left port of the 80A03.
4. Press the TG8000 MODULE button until HD3G7:STATUS appears in the
display.
5. If necessary, press the up (▲)ordown(▼) arrow buttons to choose
CALIBRATION.
6. If necessary, use the left (◄)orright(►) arrow buttons to selec
t Output 1 to
adjust the Signal 1 output, and then press the ENTER button.
7. Press the right (►)arrowbuttontoselect20 Bits Square, and then press
the ENTER button.
11–6 TG8000 Multiformat Test Signal Generator Service Manual

Tektronix TG8000 Specifications

General

Brand	Tektronix
Model	TG8000
Category	Portable Generator
Language	English