Amcrest AMDV4M4 User Manual

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• The hard drive is broken.
• The hard drive cable is damaged.
• The hard drive cable connection is loose.
• The DVR's main motherboard SATA port is broken.
4. There is no video output on any of the channels.
Below are a few possible reasons why this may be occurring:
• The DVR firmware is incompatible with the attached cameras. Upgrade to the latest firmware.
• The image brightness is set to 0. Change the brightness using the image settings or restore the DVR to factory
default settings.
• There is no video input signal, or the signal is too weak.
• A privacy mask or screensaver may be enabled.
• There might be a malfunction with the DVR hardware.
5. Real-time video color is distorted.
Below are a few possible reasons why this may be occurring:
• When using a BNC output, NTSC and PAL may be setup incorrectly. The real-time video may become black and
white.
• The DVR is not compatible with the monitor.
• The video transmission cable is too long, or signal degradation is too great.
• The DVR's color or brightness settings are not correctly configured.
6. Local Recordings are not searchable.
Below are a few possible reasons why this may be occurring:
• The hard drive cable is damaged.
• The hard drive is broken.
• The DVR's firmware is incompatible with the recorded video.
• The recorded files have been overwritten.
• The recording function has been disabled.
7. Local playback video is distorted.
Below are a few possible reasons why this may be occurring:
• The video quality setting is too low.
• The DVR software has a read error. Restart the DVR to solve this problem.
• The hard drive cable is damaged.
• The hard drive is malfunctioning.
• The DVR's hardware is malfunctioning.
8. There is no audio during real-time monitoring.
Below are a few possible reasons why this may be occurring:
• The microphone being used is not sufficiently powered.
• The speakers being used are not sufficiently powered.
• The audio cable is damaged.
• The DVR hardware is malfunctioning.
9. There is no audio during recorded video playback.
Below are a few possible reasons why this may be occurring:
• Audio may not be enabled for that channel.

Amcrest AMDV4M4 Specifications

General

Brand	Amcrest
Model	AMDV4M4
Category	DVR
Language	English