Troubleshooting Guide - Kenwood KAC-8104D Instruction Manual

Controls
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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. Refer to <Protection function> (page 3).
®
Illumination
@ ISF (infrasonic filter) switch
Ultralow frequencies that cannot be reproduced even by a subwoofer speaker
do not become sound but become unnecessary oscillations, which affect the
sound by causing distortion, etc. Setting this switch to "15 Hz" or "25 Hz" cuts
the frequencies below the respective frequency.
This improves the reproduction performance of the speakers by eliminating
unnecessary oscillations which will not become sound.
CIJ
BASS BOOST LEVEL control
Sets the low frequency level to be compensated.
®
LPF(Low-Pass Filter) FREQUENCY control
This control adjusts the frequency band output from this unit.
®
INPUT SENSITIVITY control
Set this control according to the pre-output level of the center unit connected
with this unit, or to the maximum power output of the genuine-accessory car
stereo.
Use the diagram on the right as a guide.

Troubleshooting Guide

What might appear to be a malfunction in your unit mayjust be the result
ofslight misoperation
®
40W-15W
following table for possible problems.
J
No sound. (Blown fuse.)
:~O~ 1
." Input (or output) cables are disconnected.
4~D.3
OF
(MIN)S D.2IMAXI
." Protection circuit may be activated.
f
OF
." Volume is too high.
OF
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." The speaker cord is shorted.
OF
• .
The output level is too small (or too large).
"~1~!~'!' 1~~i""1
' t I)' i J' 1 ' ." The input sensitivity adjusting control is not set to the correct position.
I I
OF
® ® ®
The sound quality is bad. (The sound is distorted.)
." The speakers wire are connected with wrong
OF
." A speaker wire is pinched by a screw in the car body.
OF
." The switches may be set improperly.
OF
~ecificQtions
CEA-2006
Primary Power Output Ratings (RMS Watts per
channel
-' : s"-' i g""n"' a "' l ""to-""-N
ohms)
Audio Se(tion
Max Power Output
Rated Power Output (+B = 14.4 V)
(4 0) (20 Hz - 200 Hz, 0.5
(40) (OIN45324, +B = 14.4 V)
(20) (100 Hz, 0.8
Freguency Response (+0, -3 dB)
Sensitivity (rated output)
Input Impedance
Signal to Noise Ratio
Low Pass Filter Freguency (-24 dB/oct.)
Infrasonic Filter Freguency (-18 dB/oct.)
Bass Boost Circuit (40 Hz)
General
Operating Voltage
Current Consumption
Installation Size (W
Weight
• Specifications subject
or miswiring. Before calling service, first check the
Connect the input (or output) cables.
Check connections by referring to <Protection function> .
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 <Controls>.
0 / 8
Connect them properly checking the
well.
Connect the speaker wire again so that it is not pinched by anything.
Set switches properly by referring to <Controls>.
4 ohms, 1 % THO+N)
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2 L W~a-tt-in-t-0-4--"'-""---'-'--'-'-'-----C
0"' i se"-' : -R""at i o ' - -' = (R' - -e' : -fe""re"-n"' c ""e' - -:
C"C
1
% THO)
THO)
%
x H x 0)
to change without notice.
0 / 8
polarity.
of the terminals and wires
Xl.
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300 W
j
83 dBA
tEA.!",,"'"
1000W
300W xl
300W xl
500W xl
5 Hz - 200 Hz
0.2 V - 5.0 V
10 kO
100 dB
50 - 200 Hz (variable)
15/25 Hz
0- + 18 dB (variable)
14.4 V (11 - 16 V allowable)
40 A
x x
280 59 238 mm
x x
11 2-5/16 9-3/8 inch
2.6 kg (57 lbs)
5
English