Troubleshooting Guide - Kenwood KAC-X621 Instruction Manual

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.
No sound. • Input (or output) cables are disconnected. • Connect the input (or output) cables.
(No sound from one side.) • Protection circuit may be activated. • Check connections by referring to "Protection function".
(Blown fuse.)
• Volume is too high.
• Replace the fuse and use lower volume.
• The speaker cord is shorted. • After check the speaker cord and fixing the cause of the short,
reolace the fuse.
The output level is too small • The input sensitivity adjusting control is not set to the correct • Adjust the control correctly referring to "Controls".
(or too larael. oosition.
The sound quality is bad. • The speakers wire are connected with wrong (±J /8polarity. • Connect them properly checking the (±J / 8 of the terminals
(The sound is distorted.) and wires well.
• A speaker wire is pinched by a screw in the car body.
• Connect the speaker wire again so that it is not pinched by
anything.
• The switches mav be set imorooerlv. • Set switches orooerlv bv referrino to "Svstem examoles'.
The sound does not change • The AMP CONT has been turned
"OFF'~
• Turn the AMP CONT "ON".
even when
you
have changed • The filtered band has been controlled by the Amplifier Control. • Turn the filter Off.
it with the AmDlifier Control.
The set value cannot be
• The AMP Control of the Center Unit is being used. • Release the AMP Control mode of the Center Unit.
changed by the Amplifier
Control of the unit.
The Amplifier Control cannot • An incorrect 10 number is used for the Master amplifier.
• Always set the 10 number of the Master amplifier to "0".
be operated from the Center • The 10 number of the amplifier has been changed. • After you have changed the 10 number of an amplifier, turn Off
Unit.
the POWER switch of the Center Unit first then turn it On aaain.
2J?ecifications
Specifications subject to change without notice.
KAC-X521
................ 179W 165W
.................................... .. 305 W 254 W (1 kHz)
........................ .. 612W 505Wx 1
.. 191 W 170W
........... under 0.3 dB (40) under 0.3 dB (40)
.. 83 dBA (W/4 0) 81 dBA (W/4 0)
.. 83 dBA (W/4 0) 82 dBA (W/4 0)
....................................0.2 V 0.2 V
.. ..5.0 V 5.0V
.. 10kO 10kO
.. 50 - 200 Hz (variable) 50 - 200 Hz (variable)
.. 50 - 200 Hz (variable) 50 - 200 Hz (variable)
.. 15 Hz 15 Hz
...................................................... 5 Hz - 70 kHz 5 Hz - 70 kHz
Audio Section KAC-X621
RMS Power Output (+B = 14.4 V, CEA-2006)
Normal (4 0/2ch) (1.0 % THO+N)
(2 0/2ch) (1.0 % THO+N) ...
Bridged (40) (1.0 % THO+N)............. .. ..
Oynamic Power (+B = 14.4 V, CEA-2006) .
Output Regulation (+B = 14.4 V, CEA-2006) ..
Signal to Noise Ratio (CEA-2006) , .
(Bypass) KEA-2006)
Sensitivity (rated output) (MAX.) .. .
(MIN.) .
Input Impedance .....
Low Pass Filter Frequency (24 dB/oct.) ..
High Pass Filter Frequency (12 dB/oct.) ..
Infrasonic Filter Frequency (24 dB/oct.)
Frequency Response (+0, -3 dB) ..
............ 100 W x 2 80 W x 2
.. 200 W x 2 160 W x 2
.. .400 W x 1 320 W x 1
.150W x 2
............................................................ 150W x 2
......................................300W x 2
.......................... .600W xl
.........................................0.2 V
.........................................5.0 V
....... 10 kO
.............................50 ... 200 Hz (variable)
.......................................50 - 200 Hz (variable)
................................................... 15 Hz
......................... 5 Hz - 70 kHz
......................... ..... 105 dB
Audio Section KAC-PS621
Max Power Output...... .. 1200 W
Rated Power Output (+B = 12.0 V)
Normal (40) (20 Hz - 20 kHz, 0.05
%
THO) .
(20) (1 kHz, 0.5 % THO) ..
Bridged (40) (1 kHz, 0.5
%
THO). .
Rated Power Output (+B
=
14.4 V)
Normal (40) (20 Hz - 20 kHz, 0.05 % THO) ..
(40) (OIN : 45324 , +B
=
14.4V) ..
(2 0) (1 kHz, 0.5 % THO) .
Bridged (40) (1 kHz, 0.5 % THO)
Sensitivity (rated output) (MAX.) .
(MIN.) .
Input Impedance .. ..
Low Pass Filter Frequency (24 dB/oct.) .
High Pass Filter Frequency (12 dB/oct.) .
Infrasonic Filter Frequency (24 dB/oct.) ..
Frequency Response (+0, -3 dB)... .. .
Signal
to
Noise Ratio .........
KAC-PS521
1000W .
125 W x 2
125 W x 2
250W x 2
500W xl
0.2V
5.0
V
10 kO
50 - 200 Hz (variable
50 - 200 Hz (variable)
15 Hz
5 Hz;... 70 kHz
105 dB
Amplifier Control Section (EQ) KAC-X621/PS621
Bass frequency......... .. 60/80/ 100/ 200 Hz
Bass level........ . .. -15 - + 15 dB
Bass Q factor... .. 1.00 / 1.25/ 1.50/2.00
Treble frequency.. .. 10 /12/15/17 kHz
Treble level..... .. -15 - + 15 dB
KAC-X521/PS521
60 / 80 / 100
1200
Hz
-15 ~ +15 dB
1.00/ 1.25 / 1.50/ 2.00
10 ! 12 / 15 / 17kHz
-15 - +15 dB
Weight ..
Installation Size (W x H x 0) ..
General KAC-X621/PS621
Operating Voltage .. 14.4 V (11 - 16 V allowable)
Current Consumption (+B = 12.0 V, 1 kHz, 10 % THO, 4 0)..... .. , .40 A
Dimensions (W x H x 0) .. 446 x 61 x 259.5 mm
17-5/8 x 2-3/8 x 10-3/16 inch
.................... 446 x 61 x 265 mm
17-5/8 x 2-3/8 x 10-3/8 inch
..... 4.42 kg (9.74 Ibs)
KAC-X521/PS521
14.4 V (11 - 16 V allowable)
37 A
386 x 61 x 259.5 mm
15-3/16 x 2-3/8 x 10-3/16 inch
386 x 61 x 265 mm
15-3/16 x 2-3/8 x 10-3/8 inch
3.83 kg (8.44 Ibs)
English
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