Kenwood MP928 Instruction Manual - Page 61

Troubleshooting Guide What may seem 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. General ? The power does not turn ON. ✔ The fuse has blown. ☞ After checking for short circuits in the wires, replace the fuse with a new one with the same rating. ✔ The speaker wire has a short-circuit or touches the chassis of the vehicle, and the protection function is activated. ☞ Wire or insulate the speaker cable properly and press the reset button. ? There is a source you cannot change. ✔ There is no media inserted. ☞ Set the media you want to hear. If there is no media in this unit, you cannot change to each source. ✔ The Disc changer is not connected. ☞ Connect the Disc changer. If the Disc changer is not connected to it's input terminal, You cannot change to an external disc source. ? The memory is erased when the ignition is turned OFF. ✔ The ignition and battery wire are incorrectly connected. ☞ Connect the wire correctly, referring to the section on . ? The TEL mute function does not work. ✔ The TEL mute wire is not connected properly. ☞ Connect the wire correctly, referring to the section on . ? The TEL mute function turns ON even though the TEL mute wire is not connected. ✔ The TEL mute wire is touching a metal part of the car. ☞ Pull the TEL mute wire away from the metal part of the car. ? No sound can be heard, or the volume is low. ✔ The fader or balance settings are set all the way to one side. ☞ Center the fader and balance settings. ✔ The input/output wires or wiring harness are connected incorrectly. ☞ Reconnect the input/output wires or the wiring harness correctly. See the section on . ✔ The values of Volume offset are low. ☞ Turn up the Volume offset, referring to the section on (page 11). ✔ The (page 47) is OFF. ☞ Turn it ON. ? The sound quality is poor or distorted. ✔ One of the speaker wires is being pinched by a screw in the car. ☞ Check the speaker wiring. ✔ The speakers are not wired correctly. ☞ Reconnect the speaker wires so that each output terminal is connected to a different speaker. ? The Touch Sensor Tone does not sound. ✔ The preout jack is being used. ☞ The Touch Sensor Tone cannot be output from the preout jack. ? Even though Synchronize Clock is ON, the clock cannot be adjusted. ✔ The received RDS station is not sending time data. ☞ Receive another RDS station. ? The Dimmer function does not work. ✔ The Dimmer wire is not connected correctly. ☞ Check the Dimmer wire connection. ✔ The (page 46) is OFF. ☞ Turn it ON. ? The sound is not output from Subwoofer or it outputs a different sound. ✔ When "2ZONE" of (page11) is set to ON. ☞ Turn OFF "2ZONE" of . ? There are no audio control effects. ✔ FOCUS/ SRS 3D item on (page 15) have no effect in rear output. ☞ --- ? Switching between negative and positive display modes takes place automatically. ✔ Switching between negative and positive display modes takes place automatically to maintain the initial brightness of the display for a long period of time. ☞ You can select "Display N/P: POSI" as mentioned in (page 47). English | 61