Table 5-6B, Engine Board Checkout Procedure - #2 - Racal Instruments 3151 User Manual

Step Test Point
1 U13 pin 16
2 U13 pins 8
3 U39 pin 13
4 U39 pin 8
5 U26 pin 11
6 U24 pin 1
Step Test Point
1 U14 to U8 pin 9
2 U10 pin 1, U39 pin
13
Maintenance and Performance Checks 5-26

Table 5-6b, Engine Board Checkout Procedure - #2

TTL Level, 200 kHz
TTL Level Positive going pulses; 10 ns width, 200 kHz
TTL Level Negative going pulses; 10 ns width, 200 kHz
TTL Level Positive going pulses; 1 Fs width, 200 kHz
TTL Level Negative going pulses; 1 Fs width, 200 kHz
ECL Level Negative going pulses; 1 Fs width, 200 kHz
Change the Model 3151/3151A setting to delayed trigger and change
delay to 100. Use an external pulse generator to apply a TTL level
and 200 kHz signal to the TRIG IN connector. Proceed with the
checks given in Table 5-6c.
Table 5-6c, Engine Board Checkout Procedure - #3
TTL Level Positive going pulses; 1 Fs width, 200 kHz
TTL Level Negative going pulses; 10 ns width, 200 kHz
3151 And 3151A User Manual
Expected Result
Expected Result