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Safety instruction
Technicians need to read and follow the "safety precautions" and "important safety tips" strictly in the service manual
in the maintenance process.
The service manual is only for experienced technicians, rather than the general public.
The service manual does not include the warning about the non-technicians or to inform the danger they may
occur in the maintenance process.
When the product is powered on, it can only be repaired or processed by experienced professional technicians.
Any other person who attempts to repair or repair the products involved in the service manual may result in
serious injury or even death.
Caution
NOTE
Preventive measures:
– Please make sure to set the High land off when using the projector at altitudes below 1400 meters, or it may
shorten the life of internal components or even cause functional failure.
– Please make sure to set the High land on when using the projector at altitudes above 1400 meters but below
2700 meters, or it may shorten the life of internal components or even cause functional failure.
– Never install the projector in a place higher than 2700 meters, or it may shorten the life of internal components
or even cause functional failure.
– Some more details about operation guidance, please refer to the projector setup menu.
– Please consult the dealer or authorized service center for preventive measures if you want to use the projector
in high altitude area.
Lead-free solder (Pb Free)
The projector uses the PCB board of lead-free solder.
Please use the PCB board of lead-free solder to prevent the harm to the global environment.
Notes
●Lead-free solder: The Sn-Ag-Cu (tin - Silver - copper) is with a higher melting point (about 217℃ ) than the
standard solder. in general, the melting point will be 30 ℃ to 40℃ higher. And you should select the soldering
iron with temperature limit, and the temperature may reach 370℃ ± 10℃ .
●Lead-free solder precations: The Sn-Ag-Cu lead-free solder (SN Ag Cu) will splash when it is heated to high
temperature (at about 600℃ or higher).
●The PCB board about our product are all lead-free solder. When it is necessary to use leaded solder, please
make sure to remove the lead-free solder before, or ensure that the lead-free solder will be heated to completely
melt, and then coate with leaded solder.
● Please check whether there is excess solder material on the components' surface which may flow to the other
side after welding PCB board into a double layer.
Identification of PCB board for lead-free soldering materials
The logo just as shown in the figure below will be engraved or printed on the PCB board' surface or back when using the lead-free
soldering materials.
Please take UV radiation measures to protect your eyes and skins in the maintenance
process.
Caution
P b
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