TKOKO CH-902H Operation Manual

Public address systems
& Commercial sound systems

CH-902H

Ceiling Speaker

www.t-koko.com

CH-902H

PREMIUM CEILING SPEAKER

INSTALLATION AND OPERATION MANUAL

IMPORTANT SAFETY INFORMATION

1、Save the carton packing material even if the equipment has

arrived in good condition. Should you ever need to ship the unit.
Use only the original factory packing.
2、Read all documentation before operating your
equipment .Retain all documentation for future

reference.
3、Follow all instructions printed on unit chassis for proper
operation.
4、Do not spill water or other liquids into or on the unit ,or
operate the unit while standing in liquid.
5、Make sure power outlets conform to the power requirements
listed on the back of the unit.
6、Do not use the unit if the electricalpower cord is frayed or
broken.The power supply cords should be routed so that they
are not likely to be wallked on or pinched by items placed upon
or against them,paying particular attention to cords and
plugs,convenience receptacles,and the point where they exit
from the appliance.
7、Always operate the unit with the AC ground were connected
to the electrical system ground.Precautions should be taken so
that the means of grounding of a piece of equipment is not
defeated.
8、Mains voltage must be correct and the same as that printed
on the rear of the unit.Damage caused by connection to
improper A C vol tage is not covered by any warranty.
9、Have gain controls on amplifiers turned down during
power-up to prevent speaker dama ge if there are high signal
levels at the inputs
10、Power down﹠disconnect units from mains voltage before
making connections.
11、Never hold a power switch in the “ON” position if it won’t
stay there itself!
12、Do not use the unit near stoves, heat registers,radiators,or
other heat producing devices

13、Do not block fan intake or exhaust ports. Do not operate
equipment on a surface or in an
Environment which may impede the normal flow of air around
the unit,such as a bed,rug.
Weathersheet,carpet,or completely enclosed rack.. If the unit is
used in an extremely dusty or smoky envronment,the unit
should be periodically “blown free” of foerign matter.
14、Do not remove the cover.Removing the cover will expose
you to potentially dangerous voltages.There are no user
serviceable parts inside.
15、Do not drive the inputs with a signal level greater than that
required to drive equipment to full output.
16、Do not connect the inputs/outputs of amplifiers or consoles
to any other voltage source,such as a battery,mains source,or
power supply,regardless of whether the amplifier or console is
turned on or off.
17、Do not run the output of any amplifier channel back into
another channel’s input.Do not parallel-or series-connect an
amplifier output with any other amplifier output.Australian
Monitor Inc is not responsible for damage to loudspeakers for
any reason.
18、Do not ground any red (“hot”) terminal. Never connect a
“hot” (red) output to ground or to another “hor” (red) output!
19、Non-use periods .The power cord of equipment should be
unplugged from the outlet when left unused for a long period of
time.
20、Service Information Equipment should be serviced by
qualified service personnel when:
A、The power supply cord or the plug has been damage.
B、Objects have fallen,or liquid has been spilled into the
equipment
C、The equipment has been exposed to rain.
D、The equipment does not appear to operate normally,or