Fan; Power Supply Assembly/System Board Assembly Voltages - HP 54501A Service Manual

HP 54501A SErVICE
Table G-1 . Power Supply Assembly/System Board Assembly Voltages
NOTE
The ground planes (digital, analog, and display) are at the same potential on
the power supply, but at board level the supplies must be measured to the
respective ground .
PIN
SIGNAL PIN SIGNAL
1
+5 .15 V (ANALOG) 11 -5 .2 V (ANALOG)
2
+5 .15 V (ANALOG) 12 GROUND (ANALOG)
3 +5 .15 V (DIGITAL) 13
+12 V (ANALOG)
4 +5 .15 V (DIGITAL) 14
GROUND (ANALOG)
5 GROUND (DISPLAY)
15 -12 V (ANALOG)
6
GROUND (DIGITAL) 16 GROUND (ANALOG)
7 GROUND (DIGITAL) 17
+12 V (DISPLAY)
8 GROUND (ANALOG) 18
-5 .2 V (ANALOG)
9 +3 .5 V (ANALOG) 19
+15 .5 V (FAN)
10 GROUND (ANALOG)
20 GROUND (FAN)