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Instruction on maintenance
technical support & service
Maintenance of this equipment should be professionals, there are no equipment parts for mai-
ntenance supplied in the product-package. The damaged parts of the equipment should be replaced
with the same parts that have the identical brand during its maintenance.
technical support
If you feel that there are some problems with this products, please check the system configur-
ation and the amplifier first so as to get the points of the problem. Generally speaking, the problems
are usually caused by the wrong signal connection and bad cables or the damaged systems. If you
can't solve this problem by yourself, please contact the technical department of C-MARK company
directly.
After-sale maintenance
— pack this equipment well so as to protect it from damage during the freight .
— you should enclose purchasing receipt , name , returned directories (place), telephone number
and the detailed damage-expression to the products.
— About the over-wrap ,you can also contact with technical service department that authorized
by C-MARK .
— Prepaid, send product to after-sale service department of C-MARK .
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Http://www.c-mark.com.cn
DA SERIES
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