Racal Instruments 3162A/B, User Manual

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User Manual 3162A/B
Maintenance and Performance Checks 5-30
1 U1 pins 13, 14, 17 and 18 78.125 kHz, 0 to – 1 V square waveform
2 U1 pins 38 and 39 +1 V dc
3 U5 pin 1 -1 V dc
4 U5 pin 7 Approxi330 mV dc
5 U1 pins 2 and 3 10 MHz ECL level square waveform
6 U3 pin 6
78.125 kHz
±
600 mV level square waveform
Engine Board B Test
Point
7 U15 pins 13, 14, 17 and 18 78.125 kHz, 0 to – 1 V square waveform
8 U15 pins 38 and 39 +1 V dc
9 U17 pin 1 -1 V dc
10 U17 pin 7 Approxi330 mV dc
11 U15 pins 2 and 3 10 MHz ECL level square waveform
12 U13 pin 6
78.125 kHz
±
600 mV level square waveform
Sequence Generator
Checks
Problems with the sequence generator circuits can be detected if the Model
3162B accepts word serial commands and responds correctly to word serial
queries, but fails to output sequences or bursts. If there is a problem with the
sequence generator circuits, proceed with the checks given in Table 5-7.
Before starting the following procedure, reset the Model 3162B to the factory
default using the *RST command. Configure the Model 3162B to sequenced
output mode and load three different waveforms, each 32 points long, to
segments 1, 2, and 3, respectively. Program each step to repeat once. Use the
following commands after loading the waveforms.
Remote Commands: :FUNC:MODE SEQ
:SEQ:DEF 1,1,1
:SEQ:DEF 2,2,1
:SEQ:DEF 3,3,1
:OUTP ON
Table 5-7 Sequence Generator Checks