User`s manual

64 Extension Modules
z If one of the following situations arises, get the equipment checked by
service personnel:
A. The power cord or plug is damaged.
B. Liquid has penetrated into the equipment.
C. The equipment has been exposed to moisture.
D. The equipment has not work well or you can not get it work according
to user‘s manual.
E. The equipment has dropped and damaged.
F. If the equipment has obvious sign of breakage.
z Never open the equipment. For safety reasons, the equipment should only
be opened by qualified service personnel.