E8257D/67D, E8663D PSG Signal Generators Service Guide 83
Troubleshooting
Troubleshooting Assembly–Level Problems
Self–Tests 12xx: A26 MID Self–Test Errors (E8267D)
Before proceeding to the reported self–test error code, check the following
voltages in. If any of these voltages are out of specification, troubleshoot the
supply problem first.
1200 Power Supply
1. Press View Test Info and highlight Self Test 1200. Press View Details.
Supply
Voltage
(Vdc)
E8267D
Connector
Pins
All Other Models
Connector
Pins
Minimum
Value
(Vdc)
Maximum
Value
(Vdc)
Origin
+32 P201–11 P201–1 +31.04 +32.96 Main Supply
+15 P201–12, 13, 14 P201–2, 3, 4 +14.55 +15.45 Main Supply
–15 P201–21, 22 P201–11, 12 –15.45 –14.55 Main Supply
+5.2 P201–7, 8, 9, 10, 23, 24, 25,
26, 27, 28
P201–13, 14, 15, 16, 17,
18
+5.04 +5.36 Main Supply
+10 P201–15, 16, 17, 18, 19, 20 P201–5, 6, 7, 8, 9, 10 +9.7 +10.3 Main Supply
+8 P201–39 P201–29 +7.5 +8.5 MID
–7 P201–40, 43, 56 N/A –7.21 –6.79 Main Supply
–5.2 P201–41, 42 P201–31, 32 –5.30 –5.10 YIG Driver
+5.2 Digital high P201–33 P201–23 +5.04 +5.36 Main Supply
+3.4 Digital Low P201–34 P201–24 +3.3 +3.5 Main Supply
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