Troubleshooting
Troubleshooting Assembly Level Problems
1-34
Self-Tests 9xx: A10 ALC Self-Test Errors
Figure 1-7
Before proceeding to the reported self-test error code, check the voltages in Table1-24. If any
voltages are out of specification troubleshoot the supply problem first.
Table 1-24
Supply
Voltage
(Vdc)
Connector
Pins
Minimum
Value
(Vdc)
Maximum
Value
(Vdc)
Origin
+32 P122-4 +31.04 +32.96 Main Supply
+15 P122-28 +14.55 +15.45 Main Supply
-15 P122-3, -14.55 -15.45 Main Supply
+5.2 P122-2, 27 +5.04 +5.37 Main Supply
-5.2 P122-1, 26 +5.04 +5.37 Main Supply
+5.2 Digital high P121-64, 65,
129, 130
+5.04 +5.36 Main Supply
+3.4 Digital Low P121-60, 61,
62, 63, 125,
126, 127, 128
+3.29 +3.5 Main Supply