TM 10--3510--221--24
0105 00--1
TYPICAL ANALOG INPUT SIGNAL FAULT
0105 00
THIS WORK PACKAGE COVERS:
Troubleshooting Typical Analog Input Signal 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. Position SW2 and SW1 to OFF.
2. Open door on main control enclosure.
3. ESD. Check wire connections between suspect analog component and PCB1.
Are connections OK?
YES Go to step 4.
NO Repair as necessary.
4. ESD. Check ribbon cable connections between PCB1 and PCB11.
Are connections OK?
YES Go to step 5.
NO Repair as necessary.
5. ESD. Check to ensure PCB9 and PCB11 are properly seated in card cage.
Are PCB9 and PCB11 properly seated?
YES Go to step 6.
NO Properly seat PCB9 or PCB11.
6. Position SW1 then SW2 to ON.
7. ESD. Check for >11 VDC between PCB1 J1 terminals (2) and (3).
Is >11 VDC present?
YES Go to step 8.
NO Go to NO +/--12 VDC POWER AVAILABLE (WP 0101 00).
8. ESD. Check for > --11 VDC between PCB1 J1 terminals (4) and (3).
Is > --11 VDC present?
YES Go to step 9.
NO Go to NO +/--12 VDC POWER AVAILABLE (WP 0101 00).
