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(d) If the device does not operate normally by following the operating instructions. Adjust only that are covered
by the operating instructions as an improper adjustment of other controls may result in damage and will often
require extensive work by a qualified technician to restore the device to its normal operation.
(e) If the device has been dropped or the cabinet has been damaged.
(f) When the device exhibits a distinct change in performance - this indicates a need for service.
13. Replacement Parts
When replacement parts are required, be sure the service technician has used replacement parts specified by
the manufacturer or have the same characteristics as the original part. Unauthorized substitutions may result
in fire, electric shock or other hazards.
14. Safety Check
Upon completion of any service or repair to the device, ask the service technician to perform safety checks
to determine that the device is in safe operating condition.
15. Heat
The product should be situated away from heat sources such as radiators, heat registers, stoves, or other
products (including amplifiers) that produce heat.
16. Fire
The product should be situated away from naked flame sources such as lighted candle.
17. Off-gassing
The device smells of plastic is normal and will dissipate over time.
18. Installation
(a) Professionals carry out installation and removal, and execute safety inspection after installation.
(b) The installed power cord should be hidden or protected to avoid tripping, crushing cause damage.
(c) The LED display can be connected to a maximum of five by five cabinets.
19.Use environment requirements:
(a) indoor.
(b) The operation ambient temperature should be kept between 0˚C and 40˚C.
(c) The operation ambient humidity should be kept between 10% and 90%RH (no frost).
(d) waterproof.
(e) The operation altitude is less than 5 km.
20.Daily use
(a)Check the screen whether missing or not before powering on.
(b)Turn off the power when the LED display is not in use.
Incorrect replacement of the battery may lead to the risk, including the replacement of another similar
or the same type. Do not expose batteries to heat such as sun or fire or something like that.
The device should not be exposed to dripping and spraying and it cannot be placed under objects
filled with liquids.
Main plug is used as the disconnect device, the disconnect device shall remain ready for operating.
Apparatus with CLASS I construction shall be connected to a MAINS socket outlet with a protective
earthing connection.
IV
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