User's Manual

GVR3550 USER MANUAL
Grandstream Networks, Inc. GVR3550 User Manual Page 72 of 76
Firmware Version 1.0.0.0 Last Updated: 10/2013
Bad tracks or damaged HDD line.
Power shortage
Unstable front video signal
Poor heat dissipation, too much dust, poor running environment.
The GVR3550 hardware failure
3. Undetected HDD after startup
Unconnected HDD power cord
Damaged HDD cable
Incorrect jumpers.
Damaged HDD
Damaged SATA port on mainboard
4. No single channel/ Multi-channel/ video output
Unmatched programs, please update the proper procedures
Image brightness is 0, please restore the default settings.
The GVR3550 hardware failure
5. Unable to search the video when local playback
Damaged HDD cables or jumpers.
Damaged HDD
Updated procedures varied from the original application file.
The video you want to search has been overwritten.
The record has not yet played
6. Dazzling monitor when search local record
Wrong data reading, small code stream, full screen mosaic when playback, it will be back
to normal after restarting the GVR3550 in general.
Damaged HDD cable or jumpers.
HDD error
Hardware failure
7. Wrong Time Display
Wrong settings
Poor contact of cell button or low voltage.
Crystal oscillator is unworkable
8. The GVR3550 can’t monitor PTZ
Front PTZ error
Incorrect PTZ decoders Settings, wiring, installation.
Incorrect cable connection