Panasonic CQC5410U CQC5110U User Guide - Page 16

E N G Troubleshooting L I S H Preliminary Steps Caution: 23 Check and take steps as described in the tables below. ≥ Do not use the unit if it malfunctions or if there is something wrong. If You Suspect Something Wrong ≥ Do not use the unit in abnormal condition, for example, without sound, or with smoke Immediately switch the power off. Disconnect the power connector and check that there is neither smoke nor heat from the unit before asking for or foul smell, which can cause ignition or electric shock. Immediately stop using it and call the store where you purchased it. repairs. Never try to repair the unit by yourself because it is dangerous to do so. Troubleshooting Tips Common Problem Possible cause Possible solution No power to the unit The power cord (battery, ACC and Check the wiring. ground) is connected in the wrong way. Fuse blow out. Eliminate the cause of fuse blow out and replace the fuse with new one. Consult your dealer. The Power fails unintentionally The safety device works. Call the store where you purchased the unit, or your nearest Panasonic Servicenter. Sound is not generated. The demonstration screen displayed and no operable. Some operations are not executable. MUTE is set to ON. The wiring of the speaker lines are not correct, or a break or poor contact arises. Set MUTE to OFF. Check the wiring in accordance with the wiring diagram. You cannot operate the unit while Press [DISP] (display) to end the the demonstration screen appears. demonstration screen. If the demonstration screen appears frequently, there is a possibility that poor contact or wrong wiring arises between the battery lead of the unit and the battery cable of the car. (The battery lead should be always powered.) Check the battery wiring in accordance with the wiring diagram. Some operations are not executable in particular modes such as menu mode. Read the operating instructions carefully and cancel the mode. In case the unit is still out of order, consult the dealer. 42 CQ-C5410/5310/5210/5110U Problem Noise Noise is made in step with engine revolutions. No sound from speaker (s) The speaker channels are reversed between right and left. Radio Poor reception or noise The number of auto preset stations are less than 6. Preset stations cannot be stored. Possible cause E N G L I S Possible solution H There is an electromagnetic-wave Keep an electromagnetic-wave 24 generator such as a cellular phone generator such as a cellular phone near the unit or its electrical lines. away from the unit and the wiring of the unit. In case the 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. Balance/fader setting is not appropriate. There is a break, a short circuit, poor contact or wrong wiring regarding the speaker wiring. Some speakers are out of order. Change the wiring position of the ground lead. Mount a noise filter on the power supply. Readjust balance/fader. Check the speaker wiring. Replace the speaker with new one. The speaker wiring is confused between right and left. Perform the speaker wiring in accordance with the wiring diagram. Antenna installation or wiring of antenna cable is faulty. No power is supplied to the antenna amplifier (when using a film antenna, etc.). 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. Check the wiring of the antenna battery lead. The number of receivable stations are 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. CQ-C5410/5310/5210/5110U 43