Q-See QH32DVR4C user manual Appendix E Troubleshooting, Failure Possible reasons

QH32DVR4C User’s Manual

Appendix E: Troubleshooting

Failure		Possible reasons
After plugging in power, turning on the power switch,	1)	Power cable is damaged.
“POWER” light in front Panel does not turn on, and fan	2)	Power supply is damaged.
does not work.
After plugging in power, turning on the power switch,	1)	Front	panel		cable		is
“POWER” light in front panel turns to green while fan does		damaged.
not work.	2)	Fan is broken.
After plugging in power, turning on switch, “POWER”	The ATX plug in main board is
light turns to green, the indicator lights in the panel turn on	not attached well.
at the same time, but fan does not work.
DVR continuously reboots after start up, and makes a	1)	Upgraded		using		wrong
sound like “di” every 10 seconds.		firmware
	2)	Compression			board		has
		problems.
	3)	Main board has problems.
There are no images in the monitor connected with VOUT	1)	The cable connected with the
after DVR is started.		monitor is damaged.
	2)	Real board of DVR has
		problems.
	3)	Main board of DVR has
		problems.
Cannot find the hard disk in reboot process.	1)	Hard disk cable is damaged.
	2)	The power cable of hard disk
		is not connected.
	3)	Hard disk is damaged.
DVR can not control PTZ through RS-485 port.	1)	RS-485		cable	is		not
		connected		correctly		or	is
		damaged.
	2)	PTZ parameters error.
	3)	RS-485 port of DVR is
		damaged.
Client software can not view DVR live image.	1)	Network error.
	2)	Wrong	DVR setup			(wrong
		IP, port number, username or
		password, etc).
	3)	Old player SDK (playm4.dll)

Notes:

1)Place the DVR in well ventilated area so that it operates within the recommended range of temperature and humidity as in specifications.

2)If the circuit board gets wet, dust on circuit board can cause a short circuit. The circuit board, plug and socket, housing fan and housing should be cleaned by brushing.

87