Self-Tests 12Xx: A26 Mid Self-Test Errors - Agilent Technologies PSG Series Service Manual

Troubleshooting
Troubleshooting Assembly Level Problems

Self-Tests 12xx: A26 MID Self-Test Errors

Figure 1-10
Before proceeding to the reported self-test error code, check the voltages in Table1-28. If any of
these voltages are out of specification troubleshoot the supply problem first.
Table 1-28
Supply
Voltage
(Vdc)
+32
+15
-15
+5.2
+10
-5.2
+5.2 Digital high
+3.4 Digital Low
+8
1200 Power Supply
1. Press View Details, then use the arrow keys or RPG to highlight Self Test 1200. Press View Details. The
results of the self-test should be displayed. Determine which supply or supplies have failed.
2. The table shows which microcircuits use the different supplies. Disconnect one microcircuit at a time and
1-40
Connector Minimum
Pins Value
(Vdc)
P201-1 +31.04
P201-2, 3, 4 +14.55
P201-11, 12 -14.55
P201-13, 14, +5.04
15, 16, 17, 18
P201-5, 6, 7, 8, +10
9, 10
P201-31, 32 -5.1
P201-23 +5.04
P201-24 +3.29
P201-29 +7.5
Maximum Origin
Value
(Vdc)
+32.96 Main Supply
+15.45 Main Supply
-15.45 Main Supply
+5.37 Main Supply
+10.4 Main Supply
-5.3 YIG Driver
+5.36 Main Supply
+3.5 Main Supply
+8.5 MID