Kenwood DPX-MP4050B User Manual - Page 32
Troubleshooting Guide, for possible problems.
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Troubleshooting Guide English What might 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 cassette tape is bad.23 ☞ Try playing another cassette tape. If works fine, the first tape was bad. ? The sound quality is poor or distorted.25 ✔ One of the speaker wires is being pinched by a screw in the car. ☞ Check the speaker wiring. ? The power does not turn ON.01 ✔ The fuse has blown. ☞ After checking for short circuits in the wires, replace the fuse with one with the same rating. ✔ No ACC position on vehicle ignition.02 ☞ Connect the same wire to the ignition as the battery wire. ? Nothing happens when the buttons are pressed.04 ✔ The computer chip in the unit is not functioning normally. ☞ Press the reset button on the unit (page 4). ? There's a source you can't switch.05 ✔ There's no tape inserted. ☞ Set the media you want to listen to. If there's no media in this unit, you can't switch to each source. ✔ There's no CD inserted. ☞ Set the media you want to listen to. If there's no media in this unit, you can't switch to each source. ✔ The Disc changer isn't connected.08 ☞ Connect the Disc changer. If the Disc changer isn't connected to it's input terminal, You can't switch to an external disc source. ? The memory is erased when the ignition is turned OFF.10 ✔ The battery wire has not been connected to the proper terminal. ☞ Connect the wire correctly, referring to the section on (page 30). ✔ The ignition and battery wire are incorrectly connected.11 ☞ Connect the wire correctly, referring to the section on (page 30). ? No sound can be heard, or the volume is low. ✔ The fader or balance settings are set all the way to one side.21 ☞ Center the fader and balance settings. ✔ The tape head is dirty.26 ☞ Clean the tape head. ✔ The speakers are not wired correctly.27 ☞ Reconnect the speaker wires so that each output terminal is connected to a different speaker. ? Non-fading setting can't be done.28 ✔ The (page 24) is set on Rear preout. ☞ Set it on Non-fading preout. ? The text is not scrolled.31 ✔ This is because eight or less characters are displayed. ☞ If all the characters are displayable on the display part, the text is scrolled once when the display switches, and after that, the text is not scrolled. ? The Security Code item isn't displayed in the Function System.32 ✔ The Security Code function is already activated. ☞ When the Security Code function is activated it isn't displayed in the Function items. ? The Touch Sensor Tone doesn't sound.34 ✔ The preout jack is being used. ☞ The Touch Sensor Tone can't be output from the preout jack. ? Even though the vehicle light switch is turned ON, the unit's display won't dim.36 ✔ The dimmer wire isn't connected. ☞ Connect the dimmer wire correctly. ? The display color changes subtly. 38-2 ✔ This is because the temperature is different than the temperature when the setting was done. ☞ The display color condition changes subtly according to the ambient temperature. ✔ The input/output wires or wiring harness are connected incorrectly.22 ☞ Reconnect the input/output wires or the wiring harness correctly. See the section on (page 30). - 32 -