The speaker output is automatically switched to monaural (L+R). P.CON SPEAKER OUTPUT FUSE [40Ax2] BRIDGED BATT. GND + LINE IN LINE OUT L R A A SPEAKER OUTPUT BRIDGED B B THERMAL MANAGEMENT PROTECTION LEFT RIGHT A LEFT RIGHT B INPUT SENSITIVITY[V] BASS BOOST LEVEL[dB] HPF/LPF FREQUENCY[Hz] 0.2 [MAX] 0.3 0.5 200 B ch FILTER LPF 150 10 70 100 0 18 2 15 4 6 50 60 1 2 3 4 [MIN] 5 [Lch] INPUT SENSITIVITY[V] 0.2 [MAX] 0.3 0.5 1 2 3 4 [MIN] 5 BASS BOOST FREQUENCY[Hz] 70 40 100 90 80 50 60 HPF A ch FILTER LPF HPF INPUT SELECTOR A OPERATION MONO STEREO OFF OFF A ch A B B ch HPF/LPF FREQUENCY[Hz] 200 150 70 100 50 60 .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. NOTE The control panel locates under the front side cover. Remove the cover to access to its controls for adjustment. (See page 3) Troubleshooting Guide 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. PROBLEM POSSIBLE CAUSE SOLUTION No sound. (Blown fuse.) The output level is too small (or too large). The sound quality is bad. (The sound is distorted.) • Input (or output) cables are disconnected. • Protection circuit may be activated. • Volume is too high. • The speaker cord is shorted. • The input sensitivity adjusting control is not set to the correct position. • The speakers wire are connected with wrong ./ ·polarity. • A speaker wire is pinched by a screw in the car body. • The switches may be set improperly. • Connect the input (or output) cables. • Check connections by referring to . • Replace the fuse and use lower volume. • After check the speaker cord and fixing the cause of the short, replace the fuse. • Adjust the control correctly referring to . • Connect them properly checking the ./ ·of the terminals and wires well. • Connect the speaker wire again so that it is not pinched by anything. • Set switches properly by referring to . Specifications Specifications subject to change without notice. Audio Section Max Power Output.........................................................................................................................................................................................................................................1200 W Rated Power Output (+B = 14.4 V) Normal (4 .) (20 Hz – 20 kHz, 0.05 % THD).................................................................................................................................................................100 W . 4 (2 .) (1 kHz, 0.5 % THD) ........................................................................................................................................................................................150 W . 4 Bridged (4 .) (1 kHz, 0.5 % THD).......................................................................................................................................................................................300 W . 2 Frequency Response (+0, –3 dB)..............................................................................................................................................................................................5 Hz – 50 kHz Sensitivity (rated output) (MAX.) .................................................................................................................................................................................................................0.2 V (MIN.) ..................................................................................................................................................................................................................5.0 V Input Impedance ............................................................................................................................................................................................................................................... 10 k. Signal to Noise Ratio......................................................................................................................................................................................................................................105 dB Low Pass Filter Frequency (-12 dB/oct.)...............................................................................................................................................................50 – 200 Hz (variable) High Pass Filter Frequency (-12 dB/oct.) .............................................................................................................................................................50 – 200 Hz (variable) Bass Boost Level (B channel)........................................................................................................................................................................................0 – +18 dB (variable) Bass Boost Frequency (B channel)......................................
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