Dell Inspiron 2100, Service Manual

Page: 28 / 73

System Overview 1-11
1
Pin 11 — PSON# should measure b4 and +5 VDC except when the power button on the front
panel is pressed, taking PSON# to its active-low state.
2
Pin 5 — PWRGOOD should measure b4 and +5 VDC when the power supply is on and oper-
ating to indicate that all power-supply output voltages are within ranges specified in Table 1-1.
Figure 1-6. DC Power Connector P1
Figure 1-7. DC Power Connectors P2, P3, P4, P5, and P6
11
1
PWRGOOD
2
(orange)
–12 VDC (blue)
+12 VDC (yellow)
+5 VFP (purple)
common (black)
2 3 4 5 6 7 8 9 10
12 13 14 15 16 17 18 19 20
P1
+5 VDC (red)
+5 VDC (red)
+5 VDC (red)
+5 VDC (red)
+5 VDC (red)
+5 VDC (red)
common (black)
common (black)
common (black)
PSON#
1
(grey)
common (black)
common (black)
common (black)
–5 VDC (white)
not used (brown)
1 2 3 4
+5 VDC (red)
common (black)
common (black)
+12 VDC (yellow)
1 2 3 4
+5 VDC (red)
common (black)
common (black)
+12 VDC (yellow)
P2, P3, P5, P6
P4