Q-See QC40198 User Manual page 133

TROUBLESHOOTING
6. Real-time video color is distorted.
Possible causes:

When using BNC output, NTSC and PAL setup is not correct. The real-time video becomes black
and white.

Combo DVR and monitor resistance is not compatible.

Video transmission is too long signal is becoming degraded.

Combo DVR color or brightness setup is not correct.
7. Cannot search local records.
Possible causes:

HDD ribbon is damaged.

HDD is broken.

Upgraded program is not compatible.

The recorded file has been overwritten.

Record function has been disabled.
8. Video is distorted when searching local records.
Possible causes:

Video quality setting is too low.

Program read error, bit data is too small. There is mosaic in the full screen. Please restart the
combo DVR to solve this problem.

Hard drive data cable error.

Hard drive malfunction.

Combo DVR hardware malfunction.
9. There is no audio when monitoring.
Possible causes:

Channel with audio is not full screen, make the channel you want to hear audio on full screen.

Audio cable is damaged.

Combo DVR hardware malfunction.
10. There is audio when monitoring but there is no audio when system plays back.
Possible causes:

Setup is not correct. Please enable audio function

Corresponding channel has no video input. Playback is not continuous when the screen is blue.
11. Time display is not correct.
Possible causes:

Setup is not correct

Battery contact is not correct or voltage is too low.

Crystal is broken.
124 | P a g e
QC40198 User Manual