Self-Tests 13Xx: A11 Analog/Pulse Modulation Generator Self-Test Errors - Agilent Technologies E8663B Service Manual

Troubleshooting
Troubleshooting Assembly–Level Problems
4. If pulse modulation is working, perform the A8 Output self–test.
• If the self–test passes, refer to
path.
• If the self–test fails, refer to the A8 Output test troubleshooting.
Self–Tests 13xx: A11 Analog/Pulse Modulation Generator Self–Test Errors
Before proceeding to the reported self–test error code, check the following voltages. If any of these voltages are out of
specification troubleshoot the supply problem first.
Supply Voltage Connector Pins
(Vdc)
+15 P132- 28
–15 P132- 3
+5.2 P132- 2, 27
–5.2 P132- 1, 26
+5.2 Digital high P131- 64, 65, 129, 130
+3.4 Digital Low P131- 60, 61, 62, 63,
125, 126, 127, 128
1300 Power Supply
• Replace the A7 Reference.
1-32
"Troubleshooting the RF Path" on page 1-
Minimum Value
(Vdc)
+14.55 +15.45
–14.55 –15.45
+5.04 +5.37
–5.3 –5.1
+5.04 +5.36
+3.29 +3.5
43, and check the lowband (<3.2 GHz)
Maximum Value Origin
(Vdc)
Main Supply
Main Supply
Main Supply
YIG Driver
Main Supply
Main Supply
Agilent E8663B Analog Signal Generator Service Guide