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Troubleshooting
Troubleshooting Assembly–Level Problems
3. Connect a spectrum analyzer to the A6 Frac–N RF output at J4 of the A8 Output. The signal at
J4 should be at 3 GHz and ≥0 dBm.
• If the signal is not present or at the correct level, replace the Frac–N.
• If the signal is present, replace the A8 Output.
WARNING Do not re–install the A8 Output with the signal generator powered on. This
can cause serious damage to the signal generator.
2202 Switching Filter Test
• Replace the A8 Output.
2203 ALC Mod System Test
• Replace the A8 Output.
2204 Pulse Mod System Test
• Replace the A8 Output.
2205 RF Path Test
• Replace the A8 Output.
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