Delay Generator - HP 8112A Operating, Programming And Servicing Manual

Note I

Delay Generator

Slope Generators
Period Vernier Current can be checked by measuring the voltage
across R212.
Table 10.3-l 1. Period Generator Signal Levels
PER Setting 1 Voltage across R212
1. Set up the HP 8112A as follows:
RCL 0
650
DEL
200 ps
DBL
2. Check the input signal from the period generator pin 7 of U220
against Figure 10.3-11.
DEL 650us
Figure 10.3-11. Delay Generator I/P O/P waveforms
3. Check the ramp signal at pin 20 of U220 against Figure 10.3-12.
4. Check the signal being sent to the width generator IC240 at TP2
against Figure 10.3-11.
Figure 10.3-12. Delay Generator ramp signal pin 20
5. Check the Delay Generator operation against Table 10.3-12
5
ms
9.99 ins -0.016 V
DEL 200us
D E L 650~s