Kenwood KAC-746 Troubleshooting guide, Specifications, Symptom, Cause, Remedy, Audio Section

Models: KAC-746

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Troubleshooting guide

Troubleshooting guide

Often, what appears to be a malfunction is due to user error. Before calling for service, please consult the following table.

Symptom

Cause

Remedy

No sound.

• Input (or output) cables are

(No sound from one side.)

disconnected.

 

• Protection circuit may be

 

activated.

 

• The fuse may be blown

 

because the volume was too

 

high.

Connect the input (or output) cables.

Check connections by referring to "Protection function".

Replace the fuse with a new fuse and use a lower volume.

The output level is too small (or too large).

The input sensitivity adjusting

Adjust the control correctly

control is not set to the correct

referring to “Controls”.

position.

 

The sound quality is bad. (The sound is distorted.)

The speakers cable are connected with wrong + / - polarity.

A speaker cable is pinched by a screw in the car body.

The switches may be set improperly.

Connect them properly checking the + / - of the terminals and cables well.

Connect the speaker cable again so that it is not pinched by anything.

Set switches properly by referring to "Controls" and "System examples".

Specifications

Specifications subject to change without notice.

Audio Section

Max

Power Output (4..........................................................................................................Ω )

70 W 4

4

Channel Mode

 

3

Channel Mode

70 W 2 + 200 W 1

2

Channel Mode

200 W 2

Rated Power Output (4 Ω )

 

35 W 4 (DIN45324, +B=14.4 V)

4

Channel Mode

3

Channel Mode)

35 W 2 (1 kHz, 0.08 % THD) + 100 W 1 (1 kHz, 0.8 % THD

2

Channel Mode

100 W 2 (1 kHz, 0.8 % THD)

Rated Power Output..........................................................................(2 Ω )

50 W 4 (1 kHz, 0.8 % THD)

4

Channel Mode

 

Frequency Response (+0, –1 dB)

5 Hz ~ 50 kHz

Signal to Noise Ratio

100 dB

Sensitivity (MAX) (rated output)

0.15 V

Sensitivity (MIN) (rated output)

4.0 V

Input Impedance

10 kΩ

Low Pass Filter (12 dB/oct.) (Variable)

50 ~ 200 Hz

High Pass Filter (12 dB/oct.) (Variable)

50 ~ 200 Hz

General

Operating Voltage

14.4 V (11 ~ 16 V allowable)

Current Consumption (1 kHz, 10% THD)

28 A

Dimensions (W H D)

290 52 230 mm

Weight

3.1 kg

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Kenwood KAC-746 Troubleshooting guide, Specifications, Symptom, Cause, Remedy, Audio Section, General, No sound