Q-See QSD6204 - Manual (Page 3)

GENERAL SAFETY
Review the following safety precautions to avoid injury and prevent damage to this
product or any products connected to it.
1. Use proper power source
Do not operate this product from a power source that applies more than the
specified voltage (90~260 VDC).
2. Do not insert anything metallic into the DVR case.
Putting something into the DVR case can be a source of dangerous electronic
shock.
3. Do not operate in wet or dusty conditions.
Avoid places like a damp basement or dusty hallway.
4. Do not expose this product to rain or use near water.
If this product accidentally gets wet, unplug it and contact an authorized dealer
immediately.
5. Keep product surfaces clean and dry.
To clean the outside case of the DVR, use lightly dampened cloth with water (no
solvents).
6. Provide proper ventilation.
This DVR has a built in fan that properly ventilates the system.
7. Do not operate with suspected failures.
If there are any unusual sounds or smells coming from the DVR, unplug it
immediately and contact an authorized dealer or service center.
8. Do not attempt to remove the DVR cover.
Warning: You may be subjected to severe electrical shock if you remove the cover
of the DVR.
9. Handle DVR box carefully.
If the DVR is dropped on any hard surface it may cause a malfunction, If it stops
working properly due to physical damage contact an authorized dealer for repair or
exchange.
10. Use standard lithium cell battery. (NOTE: Manufacturer has preinstalled
battery.)
The standard lithium cell 3v battery located on the mother board should be
replaced if the time clock does not hold its time after the power is turned off. Warning:
unplug the DVR before replacing battery or you may be subjected to severe electrical
shock. Properly dispose of old batteries.
11. Install this product where there is good air circulation.
This DVR system contains a hard drive which generates much heat during
operation. Therefore do not block the air holes (bottom, upper side and back) of the
DVR that cool down the system while running. Install or place this product in an area
where there is good air circulation.