卫星接收机十忌（国外英文资料）.docVIP

卫星接收机十忌（国外英文资料） A non-guaranteed LNB, switch (work division) and cable. If there is a short circuit within, the power supply of the LNB feed will be damaged by a satellite receiver. Two avoid radio-frequency hunting. Because once the deviation (TV receiver or satellite receiver modulation frequency deviation) or satellite receiver power interference, TV receiver can receive weak TV signals, and lead to the failure finder. 3 avoid the unlocking channels encrypted signal. If not unlock encrypted signals channel, search it once, light shows no use channel, or dead machine, or memory disorder, or search. 4 avoid receiving analog signals. There is no symbol rate data for analog signals. Therefore, when the symbol rate is 0, it will also cause the death machine. The PID code is set to O. When the PID code is all set to O, the PID tracking circuit of the machine is lost and also causes the death machine. 6 avoid using CH + + key to change the platform quickly. When the CH + + key is replaced quickly, the computer will not be able to calculate the computer and will cause the death machine. 7 avoid before the new channel, all remove the manufacturers preset channel. After all removal of the manufacturers pre-set channel, the program database will be blank, the machine will be disorganized and the manufacturer will not be able to handle it. 8 avoid using a cryptography lock (for the machine that has a lock table). Using a password lock, once forgotten, will cause trouble for your normal use. 9 avoid the TV machine that receives the radio frequency signal. When the rf signal and receiving TV machine together, satellite receiver within the power of electromagnetic radiation or modulation signals interfere with TV receive a visual (i.e., images can appear checker). 10 avoid using in thunderstorm weather. Due to the complicated circuit structure of digital satellite receiver, the work is in low voltage and micro-power consumption. It is vulnerable to high voltage and high current