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Make sure that the amplifier is turned down, before turning the power on or off. So you can avoid
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supersonic frequencies, which could damage your speakers.
Don't put your equipment next to TV, radio, etc., because of interference or distortion.
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If you connect other parts of the system, be careful of ground loops.
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The best way to avoid ground loops is connecting the electrical system ground to one central point
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("star" system). In this case the mixer can act as a central point.
To prevent humming, please try different combinations of ground-lift or connect all chassis to the
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system ground, either by a power cable or frontcover rack screws.
Before changing the ground, always turn off your amplifier.
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Please read this manual carefully and keep it for future reference. Remember that the amplifier has a
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better value on the market, if you save the carton and all packing materials.
Prevent distortion! Make sure that all components connected to the PA90CDT have sufficient power
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ratings. Otherwise distortion will be generated because the components are operated at their limits.
Make sure you don't use the wrong kind of cables or defective cables.
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Make sure that signals into the mixer are balanced, otherwise hum could be created.
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If device is dropped or struck, disconnect mains power supply immediately. Have a qualified
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engineer inspect for safety before operating.
If the device has been exposed to drastic temperature fluctuation (e.g. after transportation), do not
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switch it on immediately. The arising condensation water might damage your device. Leave the
device switched off until it has reached room temperature.
If your Dap Audio device fails to work properly, discontinue use immediately. Pack the unit securely
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(preferably in the original packing material), and return it to your Dap Audio dealer for service.
Allow time to cool down, before cleaning or servicing.
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For replacement use fuses of same type and rating only.
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This device falls under protection class I. Therefore it is essential to connect the yellow/green
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conductor to earth.
Repairs, servicing and electric connection must be carried out by a qualified technician.
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WARRANTY: Till one year after date of purchase.
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OPERATING DETERMINATIONS
This device is not designed for permanent operation. Consistent operation breaks will ensure that the device
will serve you for a long time without defects.
If this device is operated in any other way, than the one described in this manual, the product may suffer
damages and the warranty becomes void.
Any other operation may lead to dangers like short-circuit, burns, electric shock, lamp explosion, crash etc.
You endanger your own safety and the safety of others!
Improper installation can cause serious damage to people and property !
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