Open back cover observation, found that the main CPU and scanning board manager Q409 each place with a pool of oil, these two just below the blue and green gun gun (used on the projection tube gun for short), realize the oil leakage failure happened. First will be treated as circuit board removed will sit in a clean, carefully check, no burning, corrosion. Test manager good woman, carefully check the blue and green gun gun, found from the oil spill mouth overflow, rather than a leak. Carefully clean and sit on the blue and green gun gun, gun all three projection used liquid bag (note that the normal red gun will install, in case of failure happens again), circuit board will be installed after the commissioning, troubleshooting.H45service manual download site