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5.4.3
WAVEFORM CHECKS
Using a precision oscilloscope, make the following waveform checks in
Table 5-5:
13
Step
Item/Component
Waveform
1.
(Referenced to analog ground)
U102 pin 40 (OSC 1)
2.
U102 pin 39 (OSC 2)
3.
U102 pin 38 (OSC 3)
(Same as step 2.)
4.
U102 pin 27 (INTEGRATOR)
(with negative full-scale
input of approximately
1900 counts)
5.
U102 pin 21 (Backplane)
TABLE 5-5
WAVEFORM CHECKS
Содержание 865
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