Hybrid Stage - HP 8114A Service Manual

Hybrid Stage

1. Make shure that the instrument is switched off.
2. Carefully take out the eighteen hybrids
3. Now switch on the instrument again, and enable the output.
4. The signal output should be a 0.0 V signal.
5. Set the output amplitude to 2.69 V.
6. Mount hybrid number 1 in its socket.
7. A negative pulse with an amplitude of 2.69 V should be
8. Set the output amplitude to 4.99 V.
9. Mount hybrids number 2, and 3 in their sockets.
10. A negative pulse with an amplitude of 4.99 V should
11. Set the output amplitude to 15.99 V.
12. Mount hybrids number 4, 5, 6, 7, 8, and 9 in their sockets.
9 HYBRIDS
OUTPUT
B O A R D
NO.08 I
6 6 5 0 6
Figure 5-8. Hybrid Stage
monitored.
monitored.
HP 8114A Service Guide
be
Troubleshooting 5-19