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Important Safety Instruction and symbol description
PKM Series Power Amplifier
1.Read these instructions.
2.Keep this user manual.
3.Pay attention to all the notice.
4.Comply with these instructions.
5.It is forbidden to spray liquid around the equipment. Please do not place liquid container above the
product, such as vases, etc.The dry cloth and air pressure gun can be used for cleaning.
6.Warning:Avoid the formation of hot air circulation. Installation as suggested way.
7.Do not install near heat, make sure the application temperature is
°C.
below 35
9.Protect the wire from being trampled or extruded, especially the plug, socket and the connector of it.
Warning: As a circuit to cut off the device, the power plug or equipment coupler should be kept
available at any time.
10.Make sure the startup and turnoff procedure: Pre-amp - Amplifier (Power on) Power amplifier (off)
-Pre-amp.
12.Signal distributor is advised to be used when the input signal paralleled with more than 3 amplifiers,
to ensure the input signal without distortion.
13.Don't connect the output interface of one channel to the input interface of another channel in the
power amplifier. Don't connect one power amplifier to another one by connecting their output in
series or parallel connection.
14.When equip the audio equipments, the power of the power amplifier should be 50%-100% more
than the loudspeaker power. Be careful when in bridged mode.
11.Power supply voltage must be in accord with the requirement of the equipment before use it.
16.Suggestions:
1) Good quality NL4 Speakers screw plug is advised.
2) Power distribution system should ensure the safety of applications of more than one amplifier.
15.When maintenance, don't connect the probe of the oscilloscope to the output interface under
bridge mode in case of damaging the power amplifier and the oscilloscope.
WARNING
TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS APPARATUS
TO RAIN OR MOISTURE.
8. Ground protection measures should be taken when the equipment is connected to the power outlet.
The lightning bolt triangle is used to alert the
user to the risk of electric shock.
Non-professional qualified technicians do not
open TOP OR BOTTOM COVERS for maintenance
The exclamation point triangle is
used to alert the user to important
operating or maintenance instructions.
This equipment is only to use safely in
the not tropical climate conditions
