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> The DVR can not boot up normally( Newstime:2011-6-10 )
Possible reasons are as followed:
1.The power supply is not correct.
2.Switch power supply line is not in good connection.
3.Switch power supply is damaged.
4.The program updating is wrong.
5.The hard disk is damaged or the hard disk lines are broken.
6.The front panel is damaged.
7.The main board of the DVR is damaged.
