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RCA cable ground lead terminal
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LINE IN terminal
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Speaker level input terminals
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Power indicator:
When the power is turned on, the Power indicator lights.
If the Power indicator does not light when the power is turned on, the
protection function may be activated. Check whether there is any
indication of trouble.
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The protection function is activated in the following
situations:
This unit is equipped with a protection function for protecting this unit
and your speakers from various accidents or problems that can occur.
When the protection function is triggered, the Power indicator goes off
and the amplifier stops operating.
• A speaker cable may be short-circuited.
• A speaker output may be in contact with the ground.
• The temperature of the internal parts may be higher than 120°C (248°F).
• The sigma servo connection may be erroneous.
• The fuse of this unit may be blown.
• The unit may be malfunctioning and sending DC signal to the speaker output.
• The grounding cable of this unit may not be connected with a metallic part which is
electrically connected with the negative terminal of the battery.
• The power control cable may not be connected to this unit.
• The grounding cable of the center unit (cassette receiver, CD receiver, etc.) may not be
connected with a metallic part which is electrically connected with the negative terminal of
the battery.
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Power indicator
Power indicator