User manual KENWOOD KAC-8401

[. . . ] They can scratch the surface of the panel and/or cause the indicator letters to peel off. When the unit is used in the ACC ON position without turning the engine ON, it depletes the battery. There is a Protection function installed in the unit to protect the unit and speakers from various problems. When Protection operates, the indicator informs you of the condition. [. . . ] Amplifies only signal input amplifier A with both amplifiers A and B. When the FILTER switch is set to the HPF (High-Pass Filter) or LPF (Low-Pass Filter) position, the threshold frequency can be adjusted with this control. 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. When a speaker wire may be shortcircuited. When the unit malfunctions and a DC signal is sent to the speaker output. When the internal temperature is high and unit won't operate. When a ground wire of the center unit (cassette receiver, CD receiver, etc. ) or this unit is not connected to a metal part serving as an electrical ground passing electricity to the battery's negative terminal. 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. If you can't find the specified capacity fuse at your store etc. When using an RCA cable with a ground lead attached, connect the ground lead to this terminal. Be sure to connect it with all the systems. When you wish to use the unit as a stereo amplifier, stereo connections are used. the speakers to be connected should have an impedance of 2 or greater. When multiple speakers are to be connected, ensure that the combined impedance is 2 or greater for each channel. When you wish to use the unit as a highoutput monaural amplifier, bridged connections are used. When multiple speakers are to be connected, ensure that the combined impedance is 4 or greater. The genuine-accessory car stereo shall have a maximum power output of no more than 40 W. Do not connect the speaker output leads from a power amplifier (Optional) to the speaker level input terminals of this unit, for this may cause malfunction or damage. [. . . ] Be sure to connect capacitors to speakers to which high frequencies will be passed. What might appear to be a malfunction in your unit may just be the result of slight misoperation or miswiring. Before calling service, first check the following table for possible problems. After check the speaker cord and fixing the cause of the short, replace the fuse. [. . . ]