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Teswell FAQ
Time: January 11, 2022

1: MDVR does not start?

a: Please check the power supply of the host to see if the power of the host is connected correctly and whether there is real voltage to the host

b: Whether the key switch of the host is locked

c: Whether the ignition control line of the host is connected properly,

d: whether there is a control voltage input (when testing in the office, the ignition control line is directly connected to the positive pole of the host power input)


2:The hard disk video recorder automatically restarts after a few minutes of startup or often crashes?

a: Input voltage is unstable or too low

b: The hard disk wiring is loose or poorly connected

c: Hard disk has bad sectors

d: Poor heat dissipation, too much dust, and the machine operating environment is too harsh

e: Inadequate installation of anti-vibration facilities


3:The remote control does not work?

a: Check the power section on the remote control

b: If the hard disk is installed, check whether the hard disk is inserted in place


4:Can't enter the settings menu?

The factory default of this machine is to automatically record when the system is started, unless it is manually stopped or the system is powered off;

to enter the setting menu, you must first stop the recording with the stop button on the remote control, and then press the menu button to enter.


5:No video and audio output?

a: Check whether the video output line of the host computer and the connection line of the display are well connected

b: Check whether the audio output line of the host and the connection line of the display are well connected


6: The color and brightness of the video image on the video recorder are seriously distorted?

a: The video format is wrong, please go to the system setting menu of the host to set the video format corresponding to the camera, and then restart the machine

b: The impedance of the hard disk video recorder does not match the monitor or display, please replace the monitor or display

c: The video transmission distance is too far or the attenuation of the video transmission line is too large


7:No video image for individual channels?

a: Check the camera power supply and video cable connection of the corresponding channel

b: Check the quality of the camera itself

c: Check the system settings to see if the video of the corresponding channel is set to hide (the system defaults to display all channels) or the channel is closed


8: The hard disk video recorder will automatically restart or crash frequently after a few minutes of startup?

a: Input voltage is unstable or too low

b: Incorrect hard disk jumper

c: The hard disk has bad sectors or the hard disk cable is broken

d: Switching power supply power is not enough

e: Front-end video signal is unstable

f: Poor heat dissipation, too much dust, and the machine operating environment is too harsh


9:3G/4G cannot connect to the server, weak signal?

a: Card arrears or not installed

b: Antenna is connected to the wrong position

c: Incorrect network settings

d: The antenna is blocked by objects and signal interference

e: The location where the vehicle is located, the 3G signal strength is weak


10: No GPS data, weak signal?

a: Antenna is connected to the wrong position

b: The antenna is blocked by objects and signal interference

c: Poor antenna contact

d: The GPS signal strength at the location of the vehicle is weak


11: WIFI cannot connect to the server, weak signal?

a: Wrong wire connection

b: Incorrect setting

c: The router's WIFI acceptance range is not reached

d: The antenna is blocked by objects and signal interference

e: Wi-Fi signal strength at the location of the vehicle is weak


12: Precautions for the use and maintenance of hard disk video recorders?

a: Please keep the hard disk video recorder away from high-temperature heat sources and places

b: Please keep well ventilated around the hard disk video recorder case to facilitate heat dissipation

c: The dust on the circuit board is easy to cause a short circuit after being damp, which affects the normal operation of the hard disk video recorder or even damages the hard disk video recorder. In order to make the hard disk video recorder work stably for a long time, please regularly use the circuit board, connectors, chassis fan, chassis, etc. to remove dust

d: Please ensure that the CCTV project has good grounding measures to prevent video and audio signals from being interfered, and to prevent the hard disk video recorder from being damaged by static electricity or induced voltage

e: Audio and video signal lines and RS-232, RS-485 and other interfaces, please do not plug or unplug under power, otherwise these ports will be easily damaged

f: Try not to use a TV on the local video output (VOUT) interface of the hard disk video recorder, otherwise it will easily damage the video output circuit of the hard disk video recorder

g: When the hard disk video recorder is turned off, please do not directly turn off the power switch. Try to use the shutdown function in the menu or the shutdown button on the panel (often press for more than three seconds) to make the hard disk video recorder automatically turn off the power to avoid damaging the hard disk.

h: Please carry out system inspection and maintenance regularly

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