6/02
2-415
DC1632/2240
OF 99-3
Status Indicator RAPs
Prelaunch Training/Review
OF 99-3 Switch
Procedure
Enter DC330 [XXX-XXX]. Actuate the switch. The display changed.
YN
There is +5VDC measured between Pin 2(+) of the Switch and GND(-).
YN
Check the wire between the switch Pin 2 and the PWB Pin 3 for an open circuit and
poor contact. If the check is OK, replace the PWB.
There is +5VDC measured between Pin 1(+) of the Switch and GND(-).
YN
Replace the switch.
Check the wire between the PWB Pin 4 and the switch Pin 1 for an open circuit and poor
contact. If the check is OK, replace the PWB.
De-actuate the switch. The display changed.
YN
Remove the connector on the switch. The display changed.
YN
Check for a short between the switch Pin 2 and the PWB Pin 3. If the check is OK,
replace the PWB.
Replace the switch.
Replace the switch.
Figure 1 2003
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