Alltion YDJ-II, Operation Instruction Manual

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5. Maintenance
5.1. Cleaning and disinfection
Caution: The dirt on the lens must be cleaned immediately after using. It will be hard to clean when the dirt
air-dried.
5.1.1 Cleaning the surface of equipment
The outer surface of the equipment can be cleaned with wet cloth. The remaining stains can be cleaned off
with the mixture of 50% distilled water. Do not wipe with any corrosive detergent lest that the surface should
be damaged.
5.1.2 Cleaning the surface of optical lens
To prevent the dust stained on the lens, never expose the optical lens to air without objective, eyepiece tube
and eyepiece. Please use the dust cover after using.
Cleaning the surface of optical lens: To clean the dirt on lens, such like bloodstain, please use the special paper
or absorbent cotton with little bit distilled water and wash, the remaining stains can be cleaned off with the
mixture of 50% Ethanol and 50% aether. If there is dust stained on the lens, blow them with a blow ball or
brush them with a dust pen. Do not wipe with any corrosive detergent lest that the lens should be damaged.
5.2 After-sales service
If any operator requests more information such as circuit diagrams, parts list and product descriptions, for
repairs carried out by qualified technical personnel, please contact us.
6. Trouble-shooting guide
In case there is any trouble, please first refer to the trouble-shooting guide. If it still can not work, please
contact the authorized distributor.
Trouble Possible reason Remedy
No working
Power adapter is not connected Connect the power adapter
No switch on the main power Switch on the main power
Main power is broken-down Contact a local electrician
Illumination
does not light
The LED lamp is not connected correctly Connect again
No switch on the main power Switch on the main power
Main power is broken-down Contact a local electrician
Electric parts are broken-down Contact the authorized distributor
The LED bulb is burnt Replace the LED bulb
Temperature
rise suddenly Something covered the heat
elimination holes Take off the cover and clean the heat
elimination holes