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Kenwood navigation system not working after car battery dies

I have the kenwood navigation system in my 2002 honda crv. yesterday, i accidently left the lights on and ran the battery down. i had left them on for about an hour and a half, then jump started the car and ran it again. prior to that the navigation system worked perfectly in every way. since the battery was run down, it now doesn't display properly. audio passes through it ok, but the display is unusably dim and unreadable. i've run the car last night and today, it works fine and the battery seems to be doing fine. however, the kenwood system still has the display problem. is there something i can do to get this working again. i expected to perhaps lose my radio station presets, but don't understand how the display is still effected. did jump starting the car hurt it somehow? any ideas as to what about that situation would have effected the display?

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Posted on Jan 02, 2017

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SOURCE: kenwood mpe system flashing protect

"PROTECT" means that the unit's thermal protection units were activated, which in turn cut off output power to the speakers. The causes for this vary. Usually, it's a problem with the impedance load that the speakers present to the power amplifier inside the receiver. Occasionally, the circuit acts up and activates itself, or playing the unit too loudly has blown a fuse. First, check all the user servicable fuses. You'll find their location and amperage rating in the user's manual. If they're broken, replace them. Make sure that none of the bare wire from any speaker is touching any bare wire from any other speaker. If the unit still won't power up, then I'm afraid you'll have to take it into the shop for evaluation by a qualified repair technician. Best of Luck.

Posted on Sep 14, 2007

  • 67 Answers

SOURCE: kenwood kvt 715dvd

I have seen problems in the hideaway (brain) where 8v reg circuit fails causing higher voltage(12v to 14v) to be on that 8v line. First component to fail is the Tuner followed by electronic volume ic. I have probably seen 6-8 failures where tuner fails. Fix is to replace tuner and replace open chip resistor in Hideaway box to restore 8v regulator to proper voltage.

Posted on Feb 29, 2008

SOURCE: Display on a Kenwood KDC-MP532U radio

not grounded well at all ground it man form main bolt on back to car chisis bet wont happen again

Posted on Mar 14, 2008

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SOURCE: Kenwood KVT-715 Radio not working

I would be willing to bet you have a 8v regulator circuit failure in hideaway Box. I have seen many of these units where a resistor opens and causes 12v instead of 8v to appear at tuner and a few other IC's. Usually But not always destroys tuner. if there are questions

Posted on Apr 21, 2008

  • 2 Answers

SOURCE: Kenwood DDX7017 Screen has no color and it won't eject

Had the same thing happen to me. All you have to do is use a pen or a paper clip and push the reset button located on the front of the unit. It cleared right up.

Posted on Dec 14, 2008

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