Kenwood DPX-MP4030 Instruction Manual page 34

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 power does not turn ON.
d The fuse has blown.
m After checking for short crrcuits in the wires, replace the fuse with
~~~ ---one with the same racc&.
/ No ACC position on vehrcle ignitron.
a Connect the same wire to the ignmon as the battery wire
? Nothing happens when the buttons are pressed.
fl The computer chip in the unrt is not functioning normally.
w Press the reset button on the unrt (page 5).
? There's a source you can't switch.
/ There's no tape inserted.
m Set the media you want to lrsten to. If there's no medra rn this
unrttyou~can't switch to each source.
/ There's no CD inserted.
m Set the media you want to listen to. If there's no media rn this
unit, you can't swatch to each source.
/ The Disc changer isn't connected.
w Connect the DISC changer. If the DISC changer Isn't connected to
it's Input terminal. You can't swatch to an external disc source.
? The memory is erased when the ignition is turned OFF.
/ The battery wire has not been connected to the proper termrnal.
= Connect the wrre correctly, referring to the sectron on
_ <Connecting W&es to Termrnals>. ~_
(/ The ignitron and battery wire are incorrectly connected.
= Connect the wire correctly, referring to the sectron on
<Connecting Wires to Terminals>.
? No sound can be heard, or the volume is low.
/ The fader or balance settings are set all the way to one stde.
= Center the fader and balance settrngs.
fl The Input/output wares or wiring harness are connected incorrectly.
@ Reconnect the Input/output wares or the wiring harness correctly.
See the sectron on <Connectrng Wires to Termrnals>.
fl The cassette tape is bad.
m Try playing another cassette tape. If works fine, the first tape was
bad.
? The sound quality is poor or distorted.
ti One of the speaker wires IS berng pinched by a screw in the car.
= Check the speaker wiring.
._____~ ~-
fl The tape head is dirty.
e Clean the tape head.
(/ The speakers are not wrred correctly.
= Reconnect the speaker wares so that each output termrnal IS
connected to a different speaker.
? Non-fading setting can't be done.
fl The <Switching preout> (page 25) IS set on Rear preout.
e Set it on Non-fading preout.
? The text is not scrolled.
fl This is because eight or less characters are displayed.
m If all the characters are drsplayable on the drsplay 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.
(/ The Security Code function is already activated.
~3 When the Securrty Code functron is actrvated it isn't displayed rn
the function items.
? The Touch Sensor Tone doesn't sound.
fl The preout lack IS being used
m The Touch Sensor Tone can't be output from the preout lack.
? Even though the vehicle light switch is turned ON, the unit's display
won't dim.
ti The dimmer wire Isn't connected.
e Connect the drmmer wire correctly.
? The display color changes subtly.
ti This is because the temperature is different than the temperature
when the setting was done.
= The display color condrtron changes subtly according.to the
ambient temperature.
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