Nikon NP4100 用户手册

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7. Appendix 
123 
 Having the Projector Serviced 
If you are unable to solve the problem, you should have the projector serviced. Pack the pro-
jector in the original carton. Include a description of the problem and a checklist of the steps 
you took when trying to fix the problem. The information may be useful to the service person-
nel. Return the projector to the place you purchased it.