Specifications

1-56
Troubleshooting
Troubleshooting Assembly–Level Problems
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.
1300 Power Supply
• Replace the A7 Reference.
Supply Voltage
(Vdc)
Connector Pins Minimum
Value
(Vdc)
Maximum
Value
(Vdc)
Origin
+15 P132-28 +14.55 +15.45 Main Supply
–15
P132-3
–14.55 –15.45
Main Supply
+5.2 P132-2, 27 +5.04 +5.37 Main Supply
–5.2
P132-1, 26
–5.1 –5.3
YIG Driver
+5.2 Digital high P131-64, 65, 129, 130 +5.04 +5.36 Main Supply
+3.4 Digital Low P131-60, 61, 62, 63,
125, 126, 127, 128
+3.29 +3.5 Main Supply