Installation Manual

acceptable resolution of the DVR; 2. The software program does not match, please
contact customer service to send the latest firmware upgrade; 3. The image brightness
is changed to 0; It can be restored the equipment to the default setting; 4. No input
signal or weak input signal, please check the connection between the camera and the
DVR.
Question 6: What shall I do if a recording cannot be found in the local playback?
Answer: Possible reasons: 1. The DVR is failed to identify the hard disk 2. Recording
is closed; 3. A firmware program that is different from the original program file is
upgraded; 4. The recording file required has been covered.
Question 7: What shall I do if there is no sound in the monitoring?
Answer: Possible reasons: 1. The audio is closed; 2. The pickup is not matched; 3.
The audio line is damaged.
Question 8: What shall I do if the time is displayed incorrectly?
Answer: Possible reasons: 1. Wrong settings; 2. Bad contact of built-in batteries of the
DVR; 3. Low voltage. You can try to connect the equipment to the Internet. The
device will be automatically updated according to the local network time.
Question 9: What shall I do if PTZ cannot be connected after the hard disk of DVR is
connected to the PTZ function camera?
Answer: Possible reasons: 1. The camera PTZ is failed; 2. PTZ decoder settings,
wiring and installation is incorrect; 3. PTZ settings in the DVR are incorrect; 4. PTZ
decoder is not matched with the DVR hard disk protocol; 5. The camera is set far
away from the DVR machine;
Question 10: What shall I do if the network remote access is unstable?
Answer: Possible reasons: A. Unstable network; B. Conflicting IP address of the
DVR.
Question 11: What shall I do if Device ID not exist is prompted when the phone APP
is adopted to scan QR code for adding?
Answer: Possible reasons: A. Use a wrong APP, please download Danale; B. Scan a
wrong QR code, please scan SN QR code in Cloud2.
Question 12: What shall I do if not all channels can be played during recording
playback?
Answer: Different devices can only support playback of partial channels at the same
time. When other channels are required to be played, it shall cancel the first several
channels defaulted and select corresponding channels for playback.
Question 13: What shall I do if the function of motion detect is not available when
cameras of other manufacturers are accessed after the equipment is switched to the