9.Unplug the USB transmitter from the computer and refer servicing to qualified service personnel under the following conditions.
When the computer or USB transmitter is damaged.
If liquid have been spilled, or objects have fallen into the computer.
If the product does not operate normally by following the operating instructions, adjust only those controls that are covered by the operating instructions as an improper adjustment of other control, may result in damage and will often require extensive work by a qualified technician to restore this product to its normal operation.
When the product exhibits a distinct change in performance - this indicates a need for service.
If the products has been dropped or damaged in any way.
10.When replacement parts are required, be sure the service technician has used replacement parts specified by the manufacturer or that have the same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock, or other hazards.
11.Upon completion of any service or repair to this product ask the service technician to perform safety checks to determine that the product is in proper operating condition.
12.The product should be situated away from heat sources such as radiators, heat registers, stoves, or other products including amplifiers that produce heat.
