Part Replacement - Star Trac E-TRx Technical Manual

Part Replacement

Part Replacement: MCB
Troubleshooting that must be done PRIOR to replacement
1. Check for voltage input to unit.
2. Check AC LED and V-CON LED's are on.
3. Verify voltage into the EMI filter is 120v AC.
4. Verify 120v AC voltage out of the EMI filter input cable.
5. Verify that the fuse is good on the MCB.
6. Determine if the power connectors have any burn or scorch marks on the MCB.
7. Reseat display (I/O) cable on the MCB & display electronics board
8. Check Display cable out of MCB connected
9. Check MCB LEDs 8 and 11 for status ready Blinking
10. Check that the MCB's LED 8 for status ready blinking
11. Verify a motor bleeder test must have 19 to 20 mega ohms.
12. Check Last Error List for a DFR 4000 code on the display (LED console).
Versions / Changes:
1. Version 1 MCB's were updated to Version 2 in Feb/2011.
Programming requirements after replacement:
2. None required.
Testing requirements after replacement:
3. Perform a motor / speed calibration test
Last updated 03/06/2017 637-4504 Rev. B