Possible reasons: the wiring is not reasonable;Methods: relevant provision, in strict accordance with the weak current system and wiring, according to the requirements of the system of product manual as far as possible away from the high voltage, it is best to use beltThe shielding wirePossible reasons: poor contact;Methods: in strict accordance with the wiring, wiring weak current specification method.Possible reasons: the video signal and abnormal;Methods: please use video amplifier.Possible reasons: system signal strong or impedance mismatch;Methods: with extension on the back of the 75 ohm...
Date:
2016
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08
-
11
Views：4
Possible reasons: the whole building visual extension image, check the door machine video output V +. G. video amplifier to level, whether the input connection points plus or minus connected and the video amplifier is connected to the power and pay attention to; The input and output port can't wrong;Methods: to turn on the juice and video amplifier connected input and output video line correctly.Encountered such a problem, first consider the VB +. V +. G line problem (check the host and extension wiring is correct, whether accord with a standard).
Date:
2016
-
08
-
11
Views：8
Possible reasons: enter a signal is abnormal;Methods: to test whether RuHuXian plenty of video signal input, check whether the power supply line, of the visual extension with normal enough input current and voltage (color extension for 18 v to 24 v, general overpressure will burn product, low pressure will lead to insufficient power supply, and is likely to lead to can't bright screen),Possible reasons: the line is wrong;Processing method: please enter a line is normal, whether there is a fault, short circuit, such as joint loose line fault. Note: please use the appropriate line diameter w...
Date:
2016
-
08
-
11
Views：6
Possible reasons: check the power supply to the indoor machine 18 v visual power through circuit have wrongProcessing method: correct - indoor machine of good power supply the power cord.A note: being the first detection of indoor machine of video line, the detection power again, furthermore analyze the extension is down
Date:
2016
-
08
-
11
Views：5
Possible reasons: check whether the door machine to extension lines connected, and the engine room number set is correct.Have a good extension processing method: change to see if normal; If not normal check the wiring is correct.
Date:
2016
-
08
-
11
Views：5
Possible reasons: indoor extension coding error;Method: according to the instruction to prepare the indoor extension number.Possible reasons: the line is wrong;Do note: our company will RuHuXian four wire system wiring directly and connected to the system of the main if this may be as a system signal crosstalk or line is wrong, please check the line. Have a good extension or replacement to see if normal.
Date:
2016
-
08
-
11
Views：7