HP 8340B Manual page 171

5-11. 3.7 GHz OSCILLATOR, A8 (Cont'd)
Equipment
Digital Voltmeter
Oscilloscope
10:1 Divider Probe
Procedure
1. Connect the OVM to A8R4 as shown in Figure 5-33.
2. Adjust A8C4 (100 MHz Peak) for minimum indication on the DVM. (This is maximum current
through A8R4 and A8Q2.)
3. Turn the OUT to standby and remove the DVM connections from A8R4.
4. Remove the Jumper A8E3. Connect a jumper from the —10 volt terminal to the lower connection
point for E3 as shown in Figure 5-33. (This applies —10 volts to the oscillator.)
5. Connect the Oscilloscope 10:1 high-impedance probe to the upper connection point for E3 as
shown in Figure 5-33. Switch the OUT on.
6. Adjust A8R8 (BAL) for a 50% duty cycle square wave with approximately 35 Volts peak-to-peak.
7. Turn the OUT to standby, remove the —10 Volt jumper, oscilloscope probe connections, and
reinstall A8E3 in its original position.
5-64 Adjustments
HP 3456A
HP 1741A
HP 100040
HP 8340B/41B