Keysight Technologies E8257D - Self-Tests 4 Xx: A8 Output Self-Test Errors (E8267 D Only)

E8257D/67D, E8663D PSG Signal Generators Service Guide 61
Troubleshooting
Troubleshooting Assembly–Level Problems
301 Tuning Voltage
1. Replace the A7 Reference.
Self–Tests 4xx: A8 Output Self–Test Errors (E8267D only)
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.
400 Lowband Ground and PTAT Test
—Replace A8 Output.
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 −15.45 −14.55 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 −6.12 −5.88 YIG Driver