Troubleshooting

If You Suspect Something Wrong

Check and take steps as described below.

If the described suggestions do not solve the problem, it is recommended to take the unit to your nearest authorized Panasonic Service Center. The product should be serviced only by qualiﬁed personnel. Please refer the checking and the repair to professionals. Panasonic shall not be liable for any accidents arising out of neglect of checking the unit or your own repair after your checking.

Never take measures especially those other than indicated by italic letters in “Possible solution” described below because those are too dangerous for users to handle themselves.

Warning

•Do not use the unit in an irregular condition, for example, without sound, or with smoke or a foul smell, which can cause ignition or electric shock. Immediately stop using the unit and consult your dealer.

•Never try to repair the unit by yourself because it is dangerous to do so.

Problem

Some operations are not executable.

No sound from speaker(s)

Possible cause  Possible solution

Some operations are not executable in particular modes such as menu mode.

Read the operating instructions carefully and cancel the mode. If the unit is still out of order, consult your dealer.

Balance/Fader setting is not appropriate.

Readjust Balance/Fader.

There is a break, a short circuit, poor contact or wrong wiring regarding the speaker wiring.

Check the speaker wiring.

English

Problem

No power to the unit

Possible cause  Possible solution

The power cord (battery, power and ground) is connected in the wrong way.

Check the wiring.

Fuse blows out.

Eliminate the cause of fuse blowout and replace the fuse with new one. Consult your dealer.

MUTE is set to ON.

Common (continued)

The speaker channels are reversed between right and left.

The sound ﬁeld is not clear in the stereo mode.

Central sound does not settled.

The speaker wiring is confused between right and left.

Perform the speaker wiring in accordance with the wiring diagram.

The plus and minus terminals at right and left channels of speakers are connected reversely.

Perform the speaker wiring in accordance with the wiring diagram.

Sound is not generated.

Set MUTE to OFF.

The wiring of speaker lines are not correct, or a break or poor contact arises.

Check the wiring in accordance with the wiring diagram. (Installation

Instructions)

There is an electromagnetic-wave generator such as a cellular phone near the unit or its electrical lines.

The power fails unintentionally.

The safety device works.

Consult your dealer, or your nearest Panasonic Service Center.

Troubleshooting

Common

Noise

Noise is made in step with engine revolutions.

Keep an electromagnetic-wave generator such as a cellular phone away from the unit and the wiring of the unit. In case that noise cannot be eliminated due to the wiring harness of the car, consult your dealer.

The contact of the ground lead is poor.

Make sure that the ground lead is connected to an unpainted part of the chassis securely.

Alternator noise comes from the car.

Change the wiring position of the ground lead.

Mount a noise ﬁlter.

Radio

Poor reception or noise

The number of auto preset stations is less than 6.

Preset stations cannot be stored.

Antenna installation or wiring of antenna cable is faulty.

Check whether the antenna mounting position and its wiring are correct. In addition, check to see whether the antenna ground is securely connected to the chassis.

No power is supplied to the antenna ampliﬁer (when using a ﬁlm antenna, etc.).

Check the wiring of the antenna power lead.

The number of receivable stations is less than 6.

Move to an area where receivable stations number is maximum, and try presetting.

The contact of the battery lead is poor, or the battery lead is not always powered.

Make sure that the battery lead is connected securely, and preset stations again.

22	CQ-C3305W		CQ-C3305W	23

CQ-C3305W specifications

The Panasonic CQ-C3305W is a versatile and feature-rich car audio system designed for music enthusiasts and casual listeners alike. This advanced head unit combines various technologies and characteristics to deliver excellent sound quality, user-friendly controls, and seamless connectivity.

One of the standout features of the CQ-C3305W is its high-quality audio playback. It supports various audio formats, including MP3, WMA, and WAV, making it a great choice for users who enjoy digital music. The built-in 4-channel amplifier ensures that sound comes through clearly and powerfully, enhancing the listening experience in any vehicle. With a peak power output of 50 watts per channel, the system is capable of driving a wide range of speakers effectively.

User convenience is a key focus of the CQ-C3305W, featuring a large and easy-to-read LCD display. The display provides essential information such as track name, artist, and remaining playback time, making it easy for users to navigate their playlists while on the road. The unit also comes equipped with a user-friendly interface, allowing quick access to various settings and features.

Another essential aspect of the CQ-C3305W is its connectivity options. It features a front-mounted USB port, enabling users to connect their USB drives directly to the unit for quick and easy access to their favorite music files. Additionally, the unit boasts an auxiliary input that allows for connection to external devices, such as smartphones and portable media players, enhancing its versatility.

The CQ-C3305W also supports radio playback with a high-quality AM/FM tuner. The tuner features a preset memory for storing favorite stations, making it easy for users to switch between channels. Sound enhancement technologies, including built-in bass enhancement and customizable equalizer settings, allow users to personalize their audio experience according to their preferences.

Durability and reliability are important considerations for any car audio system, and Panasonic ensures that the CQ-C3305W is built to withstand the rigors of everyday use. With a robust design and quality components, this head unit is engineered to provide long-lasting performance.

In summary, the Panasonic CQ-C3305W is a solid choice for drivers seeking a high-quality car audio solution. With outstanding audio playback, user-friendly controls, and extensive connectivity options, it stands out as an excellent addition to any vehicle, providing entertainment and enjoyment on every journey.