Problem Troubleshooting D-556. Strip fiber every 1/8 inch until you have stripped 1 inch off (yellow handledstrippers).7. Clean stripped fiber with an alcohol wipe.8. Take the connector and fill barrel with epoxy until a blue dot appears on the endof the ceramic part of the connector. Withdraw the syringe and fill the barrel.9. Feed the fiber into the barrel by twisting the fiber in the rotational axis until thefiber seats and some of the fiber comes out of the ceramic connector end.10. Carefully insert the fiber connector into the oven with a pair of needle nose pliers.Do not touch the side of the oven with the fiber. It will break.11. Cook for 10 minutes.12. When cured, cut the protruding fiber end off using the sapphire pencil tool. Use alight slicing motion.13. Polish the tip of the ceramic connector with the pink polishing pad. Polish untilall epoxy has been removed. Use a figure 8 pattern. If there is epoxy on the sideof the barrel, remove it completely with this pad.14. Place some slurry onto the rubber mat, glass, purple diamond polishing pad.15. Place the connector into the stainless steel polishing puck. Use a figure 8polishing stroke.16. Inspect with the inspection tool, and test for db loss.D.11 Problem TroubleshootingThe system does not operate, but the LOCK LOSS and ERROR lights are off.Check the following:• Hub• LAN cables• Path and location path to vxWorks.• Network setup on the computer and TPU.The TPU is not functioning properly for no apparent reason. Do the following:• Check for proper AC voltage setting.• Check AC fuses.• Replace boards one at a time.
