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5. Trouble Shooting
1. Q : After connecting the DVR power, no video output, the first and second
indicator lights on panel flashing alternately.
A: The No.5 indicator light is “Power”, and No.6 is “Run”. If the 2 indicator lights are
flashing alternatively, the DVR has lost the ignition signal. Please check and see if the
yellow wire of power cable has been connected with the power positive level, or if it’s
the same as the setting of the effective electrical level in menu settings. Note: The
factory default sets the high level effective. That is, it is only effective when the yellow
ignition signal wire is connected with the power positive level.
2. Q: SD card’s capacity is limited, how to extend the recording time to meet
customer requirements?
A: Choose h.265 recording, reduce the video frame rate, video resolution and bitrate.
3. Q: When using the SD card, ScreenTip appears "read only error ".
A: Please check to see whether the SD card is written protected. If so, please move
the pick to non-written protected mode.
4. Q: What is “high level”? And what about “low level”?
A: Generally, a vehicle has two electrical levels, the power and the ground.
Automotive power voltage has 12V and 24V, both are generally called high level. Ground
of vehicle is the reference level, the accurate level is battery negative electrode, which is
called low level. For vehicles with negative switch control (the main switch cuts off the
connection between the battery cathode and car chassis ground), the chassis ground
connects to the battery anode through a certain resistance, the chassis ground is not a
reference ground anymore. Please refer to the Appendix at the end of this manual,
including the potential analysis diagram against cars with negative switch control.
5. Q: Respectively, what’s the voltage reference range of the high and low
level in the DVR?
A: The voltage range of low level is DC 0V~4.5V, and the high level is DC6.5V~32V.
6. Q: How to configure the system
？
A: Connect a mouse with the DVR through the USB port on front panel, enter the
menu settings, left or right click the mouse to do the configuration.
7. Q: SD card or hard disc is OK, but the video recording doesn't work, what
should I do?
A: Please check to see whether the Record Mode has been changed from
"Automatic" to "Off ", or whether the DVR has been set to scheduled record mode, but
the current time is not within the time period you have set.
