Tektronix TG8000 Service Manual

AWVG7 module a djustment procedures
3. Set the oscillo
scope settings as indicated below:
Vertical scal
e
CH 1: 5 mV/div
Bandwidth 250 MHz
Horizontal sc
ale
5ms/div
Trigger posit
ion
10%
Trigger sour
ce
CH 1
Trigger type Edge
Trigger leve
l
–50 mV
Acquire menu Average 4
4. 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 message TG8000 Start up with Factory Mode displays,
releas
etheFront Panel ENABLE button.
5. Select the DAC Test calibration signal as follows:
a. Press the MODULE button to d isplay the AWVG7 main menu.
b. Press the up (▲)ordown(▼) arrow button to select CALIBRATION.
c. Press the left (◄)orright(►) arrow button to select DAC Test,andthen
press the ENTER button.
d. Press the ENTER button again to confirm the signal output.
6. Locate variable capacitors C804B, C704B, and C604B on the AWVG7
module circuit board. (See Figure 7-3.)
7. Turn the LEVEL knob on the peak detector amplifier so that the green LED
lights.
8. Adjust C804B so that the amplitude changes from 500 kHz to 20 MHz are at a
minimum. (See Figure 7-5.)
TG8000 Multiformat Test Signal Generator Service Manual 7–9

Tektronix TG8000 Specifications

General

Brand	Tektronix
Model	TG8000
Category	Portable Generator
Language	English