TM 10--3510--221--24
0102 00--1
NO +5 VDC POWER AVAILABLE
0102 00
THIS WORK PACKAGE COVERS:
Troubleshooting No +5 VDC Power Available Fault
INITIAL SETUP:
Maintenance Level
Materials/Parts
Unit
Tools and Special Tools
Equipment Conditions
Tool Kit, General Mechanics (Item 1, WP 0272 00)
Power must be applied at main control
Multimeter (Item 2, WP 0272 00)
enclosure (WP 0010 00).
1. Open door on main control enclosure.
2. Check for 110 VAC power between terminals (L1) and (L2) on power supply PS2.
Is 110 VAC power present?
YES Go to step 3.
NO Check wire connections between PS2 and TB2. Repair as necessary.
3. Check for +5 VDC between terminals (+5) and (DCOM) on PS2.
Is +5 VDC present?
YES Go to step 4.
NO Replace power supply PS2 (WP 0233 00).
4. Check fuse indicator for fuse F9.
Is fuse indicator on?
YES Go to step 5.
NO Go to step 9.
5. Position SW1 to OFF.
6. Replace fuse F9 (WP 0224 00).
7. Position SW1 to ON.
8. Check fuse indicator for fuse F9.
Is indicator off?
YES Return to normal operation.
NO Check for short between fuse F9 and PS2 and between F9 and all components using +5
VDC. Repair as necessary.
