Specifications

1-40

Troubleshooting

Troubleshooting Assembly–Level Problems

605 Sweep Lock

1. Using an oscilloscope with high input impedance, measure the center pin of A9J9.

A positive and negative going signal should be present.

• If the signal is present at A9J9, replace the A9 YIG Driver.

2. If the signal is not present at A9J9, measure the center pin of J1032 on the motherboard.

• If the signal is present, replace the cable.

• If the signal is not present, replace the A6 Frac–N.

Source Setup Oscilloscope

Setup

Start: 5 GHz 10 ms/div

Stop: 10 GHz 5V/div

Sweep: Freq 1 MΩ

Sweep

Time:

Auto

Sweep

Repeat:

Continuo