Digital Equipment VAXstation 3100 Maintenance Manual page 80

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Troubleshooting 59
Table 2-15 lists the system module power connector voltages.
Table 2-15 System Module Power Connector Voltages
Pin Number Voltage Tolerance
1 - 12.1 Vdc 5%
2 Ground
3 Ground
4
Ground
5
+
5.1 Vdc 5%
6
+
5.1 Vdc
5%
7
+
3.5 to
+
5.25 Vdc
8
+
5.1 Vdc 5%
9
+
12.1 Vdc 5%
10
+
5.1 Vdc 5%
11 Ground
12
Ground
13
1
-
9 Vdc 5%
14
2 -
9 Vdc return
1
Measurement made with negative lead connected to pin 14
2
0round for the - 9 Vdc supply (an isolated supply)
Table 2-16 lists the drive power connector voltages.
Table 2-16 Drive Power Connector Voltages
Pin Number Voltage Tolerance
1
+
12.1 Vdc
5%
2
Ground
3 Ground
4
+
5.1 Vdc 5%