Q-See QC40198 - Manual (Page 135)

TROUBLESHOOTING
QC40198 User Manual
126 | P a g e
17. Burn error /USB backup error.
Possible causes:
 Burner and combo DVR are in the same data cable.
 System uses too much CPU resources. Try stopping recording first and then begin backup.
 Data amount exceeds backup device capacity. It may result in burner error.
 Backup device is not compatible.
 Backup device is damaged.
18. Keyboard cannot control combo DVR.
Possible causes:
 Combo DVR serial port setup is not correct
 Address is not correct
 When there are several switchers, power supply is not enough.
 Transmission distance is too long.
19. Alarm signal cannot be disarmed.
Possible causes:
 Alarm setup is not correct.
 Alarm output has been opened manually.
 Input device error or connection is not correct.
20. Alarm function is not working.
Possible causes:
 Alarm setup is not correct.
 Alarm cable connection is not correct.
 Alarm input signal is not correct.
 There are two loops connected to one alarm device.
21. Remote control does not work.
Possible causes:
 Need to enter the correct Device ID on the remote control.
 Distance is too far or control angle is too small.
 Remote control battery power is low.
 Remote control is damaged or combo DVR front panel is damaged.
22. Can not playback the downloaded file.
Possible causes:
 There is no media player.
 Need Divx Codec in file player
23. Forgot local menu operation password or network password
 Contact Q-See tech support and we can generate a new password for the unit.