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Troubleshooting
Troubleshooting Assembly–Level Problems
Self–Tests 22xx: A8 Output Self–Test Errors
Before proceeding to the reported self–test error code, check the following voltages. If
any voltages are out of specification troubleshoot the supply problem first.
2200 Ground and PTAT Test
•Replace A8 Output.
2201 Prelevel Loop Test
1. With the signal generator powered on, carefully remove the A8 Output.
2. Set the signal generator to 3 GHz CW.
Supply Voltage
(Vdc)
Connector Pins Minimum Value
(Vdc)
Maximum Value
(Vdc)
Origin
+15 P52-6, 21 +14.55 +15.45 Main Supply
–15 P52-2, 17 –14.55 –15.45 Main Supply
+5.2 P52-14, 29 +5.04 +5.36 Main Supply
+9 P52-5, 20 +8.82 +9.18 YIG Driver
–6 P52-3, 18 –5.88 –6.12 YIG Driver
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