The system equipment can't be turned on after booting.
1, 220V AC power failure: check 220V AC input.
2. System power failure: check whether the system power has output, which is18V ~ 24V normally; If not, check whether the system power fuse has been burned.
3. Check whether the power supply and grounding in the line are short-circuited.
4. Check whether the visual intercom in the middle of each wiring is broken or short-circuited.
The host cannot unlock the password.
1. Check whether the password entered is correct.
2. Incorrect operation: Please read the instructions carefully to see if the password setting method is wrong or the password setting is unsuccessful;
3. The unlock line of some building intercom systems is connected to the system power supply. If the host shows "On", the host is normal. Please check whether the wiring of the electric lock is correct and whether the power supply of the electric lock is short-circuited or short-circuited with other wires.
4. If the voltage between lines connected to the electric lock has dropped, but the electric lock is not turned on, the electric lock needs to be replaced (the electric lock is also a key accessory in the building intercom system, so please choose high-quality products to ensure the stability of the system and make it more comfortable to use).
5. Check the door machine: when unlocking, there will be a falling pulse on the terminal pin of the door machine, and the normal voltage is 12V (some products of the second generation system mainly check the 7 or 8 pins of the door machine).
6. Everything is all right. Please consider the quality of the host and try a unit host with the same model and function.
Note: Abnormal password unlocking of general building visual intercom system is mainly caused by 1 and 2; However, the second-generation building intercom system, the situation of articles 3, 4 and 5 should also be considered.
The indoor extension cannot be unlocked when the host can be unlocked normally.
1, all extensions can't be unlocked: check whether the trunk line of the unit system is wrongly connected, short-circuited or intermittently damaged, then check whether the unit host has signal output, and finally check whether the floor platforms are burned or damaged in turn, because most of the floor platforms of the building intercom system are connected in series.
2. Some indoor extensions can't be unlocked: check whether the incoming wires of the extensions are wrongly connected, short-circuited or intermittently damaged, and then check whether the floor platform has signal output.
3. If the line and floor platform are normal, consider the damage of the extension and try to replace the extension with the same model and function. Special note: If the indoor extension has its own decoding function, please pay attention to re-coding when replacing the extension, and it is better to code the actual floor number.
4. Method Tip: When detecting the faults of the unit host, floor platform and lines, first use a multimeter to detect whether they have signals, so as to minimize the problems. Instead of replacing products with the same model and function, it is better to test them one by one.
5. Method tip: Some products have normal signals, but due to the program problems of the single chip microcomputer used, the output signals are all garbled. Therefore, when the floor platform, extension, host and other products using single chip microcomputer are abnormal, it is best to replace the products with the same function and model for testing.
Under the condition that the host can be unlocked normally, the management machine cannot be unlocked.
1. wiring error: check whether the signal line in the networking cable is connected correctly and whether the wiring of the networking converter is normal. Some manufacturers' networking buses are directly connected to the unit host and need special inspection.
2. If a networking converter (or networking switch, whose function is similar to that of a router in a computer network system) is used, if the monitoring function is normal and the management machine and the users in the unit are in normal use, the switching problem of the networking converter is mainly considered. Please replace the product with the same model and function for testing.
3. Line problem: Please check all the lines from the intercom equipment in the front building to the system of this unit, and see if there are any phenomena such as fracture, loose connector, short circuit and flooding.
The extension cannot call the door host, and the door host cannot call the extension.
1. Wiring error: check whether the system line, trunk line and household line are connected wrongly, short-circuited or disconnected.
2. Floor platform failure: Considering the floor platform failure, replace it with a floor platform with the same model and function for testing.
3. Fault detection sequence: If this fault occurs in the whole unit, the main considerations are trunk line fault, floor platform fault and finally main engine fault. Please replace the product with the same model and function for replacement test; If some extensions fail, most of them are home lines, the platform on this floor and the extension finally, the problems should be checked in this order.
Call an extension, other extensions ring, or multiple extensions ring together.
1. indoor extension coding error: re-compile the indoor extension number according to the manual.
2. Wrong wiring: Some manufacturers connect their home wires directly to the main line of the system without using the landing platform, such as obvious system signal crosstalk or wrong wiring.
The host couldn't get in touch with the manager.
1. Host failure: When calling the manager, check the output port of the host with a multimeter to see if there is any signal output; Please replace the host with the same model and function for testing.
2. Networking converter (switcher) failure: Check whether the wiring of networking converter is faulty; When calling the supervisor, use a multimeter to detect whether there is a signal output to the supervisor port; Use a multimeter to detect whether there is a signal input from the host input port of the network converter; Finally, please replace the network converter with the same model and function for testing.
The extension can't connect to the management machine.
1, networking converter (switch) failure: check whether there is any error in the wiring of networking converter; When calling the supervisor, use a multimeter to detect whether there is a signal output to the supervisor port; Use a multimeter to detect whether there is a signal input from the host input port of the network converter; Finally, please replace the network converter with the same model and function for testing.
2. Wrong connection: Some manufacturers' systems directly connect the network main line to the unit system main line (or directly to the unit host) without using the networking converter, which will lead to the wrong connection of key systems; In the case of direct access, the main consideration is whether the switching function of the host computer leads to the failure of the networking signal switching.
The host is in a busy state after booting.
1. Short circuit: Please try again without connecting the trunk; Considering the short circuit of the system trunk, please check whether the trunk is short-circuited;
2. The failure of the floor platform of a certain floor leads to the short circuit of the system: disconnect the floor platform test layer by layer, and replace the floor platform test in use with the standby floor platform in turn until the reason is detected.
The indoor extension has sound but no image.
1. Check whether the household signal is normal: check whether there is enough video signal input in the household line and whether there is enough voltage and current input in the power supply line of the visual extension (generally, the black and white extension is 12V to 18V, and the color extension is 1 1V to 14V). Overpressure will burn the product.
2. Wiring error: Please check whether the incoming wire is normal, whether the floor platform is connected normally, and whether the wire is broken, short-circuited or loose. Note: Please use an appropriate wire diameter.
3. Damage to the floor platform: Test all ports of the floor platform with a multimeter to see if there are normal and sufficient signal inputs and outputs. It is best to replace the existing floor platform with a spare floor platform for testing.
4. Considering the quality of the extension, please use the extension with the same model and function to test (hint: the extension comes with decoding, please pay attention to the correct extension code, otherwise there will be no sound during the test, hehe. . . . . . . . )
Please deal with the line problem in time. If the signal is abnormal or insufficient, please use the video amplifier (the floor platform of the third-generation building intercom system has its own video relay amplification function, just change the floor platform).
There is interference in the extended image.
1. Unreasonable wiring: wiring shall be carried out in strict accordance with the relevant regulations of weak current system and the requirements of the product manual of this system. Try to stay away from strong current, and it is best to use shielded wires.
2. Poor contact: Wiring and wiring should be carried out in strict accordance with weak current standard methods.
3. The system video signal is insufficient and abnormal. Please use the video relay amplifier.
4. The system signal is strong or impedance mismatch, so it is recommended to use a video processor with balanced signal.
Tips: System signal impedance mismatch. A 75 ohm resistor is connected in parallel to the positive and negative poles of the video line of the home extension, which can generally eliminate impedance mismatch.
The extended image of Abe's world tips is unstable and elongated.
1. unstable power supply: check whether the system power supply is stable and sufficient.
2. Check whether the contrast and brightness level of the extension are normal.
3. The video signal is unstable: use a multimeter to detect the system signal to see if it is stable enough; In some buildings, the video distribution amplifier is used alone in the video intercom system. Please check the regulator of the video distribution amplifier to see if it is adjusted normally.
The extended image is ghosted.
1. The video signal is too strong or too weak: use a multimeter to detect the video signal of the system. If the video distribution amplifier is used alone, adjust the video distribution amplifier as needed.
2. The power supply of the system is too strong or too north: use a multimeter to check the power supply of the system extension to see if the voltage and current are normal.
3. Consider interference sources around the extension: Most residents in new buildings install weak current systems before moving in, and may place strong interference sources around the extension (such as computers, larger speakers, transformers, etc.). ) When I moved in.
4. Considering the quality of the extension: Please change to an extension test with the same model and function.
The management machine has no image.
1, wiring error: the video line of the management center machine is detected to see if there is a video signal input; And detect whether the video line is connected incorrectly.
2. The signal is too weak, probably because the networking distance is too far: please add a system repeater at an appropriate position in the system. Note: Please use a video cable with an appropriate cable diameter.
3. The display part of the management machine is damaged: Please replace the management machine with the same model and function for debugging.
The image of the management machine is unstable.
1. unstable power supply: check whether the system power supply is stable and sufficient.
2. Video signal: The gain adjustment of video signal is unreasonable. Adjust the video regulator of the management center machine, and adjust the brightness and contrast appropriately; The video signal is too weak or too strong, please use a processor with balanced video processing function.
3. The display part of the management machine is damaged: replace the management machine with the same model and function for testing.
Invalid sector setting.
1. Compatibility problem: Check whether the connected alarm equipment is supported by the system, and whether all functions and performance meet the requirements of the product manual.
2. Line fault: Check whether the wiring is normal, and whether there is disconnection or looseness in the middle of the line.
3. Signal and power failure: Please check the connection port of each alarm detector with multimeter to see if there is normal control signal and power input. The control signal and power supply must meet the requirements of the alarm equipment manual.
4. If the detection device is damaged or expanded, please replace the product detection with the same model and function.
Unable to withdraw/deploy
1. Line fault: check whether the wiring is normal, and whether there is any disconnection or looseness in the middle of the line.
2. Signal and power failure: Please check the connection port of each alarm detector with a multimeter to see if there is normal control signal and power input. The control signal and power supply must meet the requirements of the alarm equipment manual.
3. If the detection device is damaged or expanded, please replace the product detection with the same model and function.