Digital-Ally DVM-800 User Manual

860-00186-00 Rev J
Digital Ally Inc.| Support & Troubleshooting
10-3
10.3 External SD Card Maintenance
It is recommended that the external SD cards be periodically defragmented or formatted. The frequency
is dependent on usage, with a recommendation of every 2 to 3 months for typical usage. With high
usage, more frequent maintenance may be required.
SD Card Requirements
The DVM supports 8GB, 16GB, 32GB, Minimum Class 10, commercial grade SDHC cards purchased from
Digital Ally.
Formatting Requirements
External SD Cards used in the DVM-800 should be formatted as a FAT32 file system with allocation block
size of 64k bytes.
10.4 Troubleshooting
Symptom
Resolution
System will not power up.
 Verify the power cable connector is connected to the back of the DVM.
 Check the power cable fuse located in the in-line fuse housing on the power
cable.
 Verify there are no breaks, pinches, or cuts in the wiring or cable harness.
 Check the wiring and voltage levels to the vehicle power and ignition switch
wiring.
Blue LED
Slow Flash = memory is critically low
Fast Flash = out of memory
 Upload event files from the DVM memory storage or replace the SD Card as
soon as possible (see Section 5 for details).
DVM powers up but doesn’t
record
 Check the LED status indicators and clear accordingly
 Reset the system.
DVM powers up and goes
directly to an event record
(Red LED Flashes)
An event record has been triggered from either an internal sensor or from an IF
Box:
 If the DVM is not correctly mounted the accelerometer events may be
triggered inadvertently. Adjust the DVM to the correct positions for a rear
view mirror.
 Disconnect the Sensor Cable RJ-45 connector from the IF Box and reset the
DVM. If the problem doesn’t re-occur, check the wiring from the vehicle to the
sensor cable.
 Check the DVM configuration parameter values for all internal sensors and/or
IF Box sensors.
Backup Camera not visible on
the LCD when the vehicle is in
Reverse gear
 Verify the DVM is powered ON and operational.
Note: Backup camera operation will only occur when
vehicle ignition is on and running.
 Verify the reverse gear wiring is connected to corresponding input sensor as
defined in the device configuration.
 Verify the Reverse Gear signal voltages.
 Verify there are no breaks, pinches, or cuts in any of the wiring or cable
harnesses for the backup camera, IF Box, reverse gear wiring, vehicle power
and ignition wiring.
 Verify the IF Box is connected to the DVM.
 Verify the camera cable connector is connected to the DVM.
 Verify the camera cable from the DVM is connected to the connector on the
hard-wired harness from the camera.

Digital-Ally DVM-800 Specifications

General

Brand	Digital-Ally
Model	DVM-800
Category	Dash Cameras
Language	English