AVG7 module adjustment procedures
To confirm the f
requency response
After you have performed the group delay adjustment, be sure to check that the
frequency response m eets the specifications.
Procedure
1. Use the equipment connection and controls from the frequency response
adjustment. (See page 6-10.)
2. Check that the differences of each signal amplitude from 500 kHz to 5 MHz
are less than or equal to 2 mV. If necessary, readjust the following variable
resistors and capacitors:
CH 1 output C835A and R835A
CH 2 output C735A and R735A
CH 3 output C635A and R637A
To confirm the interchannel delay
After you have performed the group delay adjustment, be sure to check that the
interc
hannel delay meets the specifications.
Procedure
1. Use the equipment connection and controls from the interchannel adjustment.
(See p
age 6-14.)
2. Check that the time delay among the channel outputs is less than or equal to
1ns.
If necessary, readjust the following variable capacitors:
CH 1 output C837A
CH 2 output C737A
CH 3 output C637A
6–18 TG8000 Multiformat Test Signal Generator Service Manual
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