Dell 2130cn Service Manual page 284

Step
Checking the power to the Interlock Switch
Disconnect the connector of J44 on the PWBA LVPS.
Is the voltage across P44-1 <=> ground on the PWBA
LVPS, about +24 VDC?
7
Checking the Interlock Switch for operation
Check the voltage across P44-3pin <=> ground on the
8 PWBA LVPS.
Does the voltage change, when the Interlock Switch is
turned ON/OFF?
Check
1 - 258
Chapter 1 Troubleshooting
Remedy
Yes
Replace the
PWBA LVPS.
Go to step 8. (Refer to Removal
11/ Replacement
43.)
Replace the
Replace the
HARN ASSY
PWBA LVPS.
INTERLOCK.
(Refer to Removal
(Refer to Removal
11/ Replacement
18/ Replacement
43.)
36.)
No