Tektronix TG8000 Service Manual

AWVG7 module a djustment procedures
2. Restart the ins
trument 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 message TG8000 Start up with Factory Mode displays,
release the Front Panel ENABLE button.
3. Select the DAC Gain (GBR) : 0 mV calibration signal as follows:
a. Press the MODULE button to display the AW V G7 main menu.
b. Press the up (▲)ordown(▼) arrow
button to select CALIBRATION.
c. Press the left (◄)orright(►) arrow button to select DAC Gain (GBR),
and then press the ENTER button.
d. Press the left (◄)orright(►) arrow button to select 0mV, and then press
the ENTER button.
4. Locate variable resistor R856A on the AWVG7 module circuit board. (See
Figure 7-1.)
5. Adjust R856A so that the output offset is 0 V ±1 mV.
6. Move the BNC cable from the upper CH 1 connector to the upper CH 2
connector on the AWVG7 module.
7. Locate variable resistor R756A on the AWVG7 module circuit board. (See
Figure 7-1.)
8. Adjust R756A so that the output offset is 0 V ±1 m
V.
9. Move the BNC cable from the upper CH 2 connector to the upper CH 3
connector on the AWVG7 module.
10. Locate variable resistor R656A on the AWVG7 module circuit board. (See
Figure 7-1.)
11. Adjust R656A so that the output offset is 0 V ±1 mV.
12. Move the BNC cable from the upper CH 3 connector to the upper CH 1
connector on the AWVG7 module.
13.
Press the left (◄)orright(►)arrowbuttontoselect700.397mV,andthen
press the ENTER button.
14. Locate variable resistors R851A (coarse) and R851B (fine) on the AWVG7
module circuit board. (See Figure 7-1.)
TG8000 Multiformat Test Signal Generator Service Manual 7–5

Tektronix TG8000 Specifications

General

Brand	Tektronix
Model	TG8000
Category	Portable Generator
Language	English