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

Note I

Slope Generator

Width vernier current can be checked by measuring the voltage
across R245.
7. Set HP 8112A PER to 20 ms
8. Check signal levels against Table 10.3-15
Table 10.3-15. Width Generator Signal Levels
1. Set the HP 8112A to RCL 0 and press the @ key:
2. Check the input signal from the width generator at pin 1 of U301
against Figure 10.3-16
3. Check the ramp current input at pins 9 and 12 of U301 against
Figure 10.3-16
4. Check the signals being sent to the shaper IC (waveforms at TPl,
TP4 and pin 21 of U301) against Figure 10.3-16.
Pins 9
Pin 1
T P 4
T P 5
Figure 10.3-16. Slope Generator Input and Output signals
l 0.26"
Servicing the Timing and 10.3-21
Slope Generators