Installation guide

Troubleshooting
Self-Test Failures and Related Troubleshooting
1-20
To Run Self-Test
1. Press the Utility key.
2. Press the Instrument Info/Help Mode softkey.
3. Press the Self Test softkey.
4. Press the Run Complete Self Test softkey.
This following section has a two column table: one column has a list of self-test errors while the second
column points to the section that describes assembly level troubleshooting procedures related to the self test.
Table 1-11 Self-Test Failures and Related Troubleshooting
If the following self-test fails... Go to this assembly troubleshooting section...
100 Power Supply
101 Cal Source
102 ExtIn Offset DAC and Switch
103 Path 1&2 and ExtOut
104 Path1 Atten+Summing Amp
105 Path2 Atten+Summing Amp
106 DC-Coupled Mode Test
107 Drift Canceller Test
108 IQ Polarity Switch
109 RMS to DC Conv Test
“Self-Tests 1xx for the A10 I/Q Multiplexer” on page 1-30
200 Power Supply
201 Tuning + Bias Test
203 YO Loop Detector
“Self-Tests 2xx for the A15 Sampler (Option UNJ or Option 506)” on
page 1-32
400 Ground and PTAT Test
401 Prelevel Loop Test
402 Quadrature DAC Test
403 VBLO Test
404 Marble Test
405 Gain Adjustment Test
406 Prelevel Bypass Test
407 Switched Filters Test
408 ALC Reference Test
409 ALC Modulation Test
410 Burst Modulation Test
411 ALC Detector Test
412 Het Band Test
413 Bulk R DAC Test
414 Log Offset Test
“Self-Tests 4xx for the A13 Output” on page 1-35
500 Power Supply
501 Loop Gain
502 Tuning Voltage
503 RF Detector
504 FM Inversion
“Self-Tests 5xx for the A17 Synthesizer (Option 501, 502, 503, 504)”
on page 1-39