Inspect Circuit Boards, Wire Harnesses, and Fiber-optic Cables for Maintenance

Visually inspect the primary circuit boards, wire harnesses and connectors, and fiber-optic cables for burn marks, breakage, foil delamination, dirt, or damage. Dirt build-up and other visible damage on some components can lead to component failure. Follow these inspection and maintenance instructions along with the Recommended Preventative Maintenance information.
  1. Review the product advisories in Before You Begin.
  2. Remove power from the system.
  3. Read the Protective Covers on Kits with XT topic.
  4. IMPORTANT: Do not remove protective covers from wire harnesses, circuit board connectors, terminal blocks, and fiber-optic transceivers and ports unless used at the time of installation. For the product to meet the corrosive atmosphere rating, protective covers must remain installed in unused connectors during storage and operation.
  5. Remove the cover from the control pod and inspect all major visible components, including: circuit boards, wire harnesses, fiber-optic cables, and connectors.
  6. If any control pod components show evidence of burn marks or breakage, replace the damaged components without further testing.
  7. For frames 5 and 6L, inspect the power feedback circuit board.
  8. If any power feedback board components, particularly the resistors, show evidence of burn marks or breakage, replace the circuit board without further testing.
  9. If an AC precharge module or system is installed, inspect all major visible components.
  10. If any AC precharge components show evidence of burn marks or breakage, replace the damaged components without further testing.
  11. If a DC precharge module is installed, inspect all major visible components.
  12. If any DC precharge components show evidence of burn marks or breakage, replace the damaged components without further testing.
  13. Visibly inspect all visible circuit boards, wire harnesses and connectors, and fiber-optic cables throughout the system.
  14. Replace any of these circuit boards, wire harnesses and connectors, or fiber-optic cables without further testing if they show evidence of burn marks, breakage, or foil delamination.
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