Question about Kenwood DNX7120 Car GPS Receiver

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Whenever i go over bumps goes into protect mode

Whenever i go over a bump or make a sharp turn my Dnx7120, causes the speakers to start to get static. Occasionaly, it will just freeze the whole screen and not allow me to do anything, and it will just pop up a box that says "Protect". It only does this when i go over bumps or make a sharp turn. Could it be something wrong with the wiring harness inside the machine itself? Someone please help me!

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It will probably more than likely be a problem with either a speaker being loose or a bare wire someplace in the wiring

Posted on Apr 29, 2009

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I agree with kenw392...its going into protect mode because one of your wires is arching into each other...just check the wiring in the back...

Posted on May 29, 2009

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1 Answer

Last night I was playing a CD and hit a bump and the CD quit playing and the word PROTECT started flashing and now I can't get anything to play or get that PROTECT off there.


Check wiring behind the radio itself, also check speakers and wiring for them. When a radio or an amplifier goes into the protect mode it is protecting itself from an electronic short. If it turns on properly and has been for some time it is not the the power wires, but may very well be a bad speaker or a connection to that speaker.

Foraudiogeeks.com

Apr 13, 2016 | Car Audio & Video

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Why are my computer speakers making a static noise?


I'm sorry, but I got bumped off of our chat by another chat request.

Let me know how it goes, getting another computer speaker set for your computer.

Oct 15, 2010 | Dell Audio Players & Recorders

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My kicker amp goes in and out of protection, like when i turn the car on it turns on green then just goes red then goes to green again and goes back to red. I was bumping for awhile and just started hear...


Thankyou for the detailed fault description..it really helps!

sounds like there is one of these 3 things wrong:

1. leaky or partially blown mosfets on ouput power stage of amplifier are leaking DC onto speaker output causing amp to go into protect..this explains any banging or clicking herd.

2. There has been damage to the internal SMPS and is going into protect because of an internal rail over-voltage/under-voltage.

or 3. you have a shorted speaker lead or sub that is bringing the amplifiers load down to less than 2 ohms..buy or obtain a multimeter and have a poke around and check all your speaker leads on the ohm setting anything lower than 1.6 ohms and you have a short...also make sure that you have correctly loaded amplifier to..alot of begginer audio enthusiats overlook this important step and cook amplifiers!!

remeber impendance ratings, have a look on google, search "impendance formulas" and study up if your unsure!

hope this helps,ben

Sep 30, 2010 | Kicker (ZX750.1) Car Audio Amplifier

1 Answer

Bumps good but every 10-15 min of bumping it


to much power hooked up to it take something away

Jul 21, 2010 | AudioBahn A8002T Car Audio Amplifier

2 Answers

My KDC BT742U recently went into protect mode after I went over a small bump. I drive a 2001 F150 Supercrew that had the stock stereo in it before the new kenwood. No problems had ever occurred before...


What has happened, is the bump has caused a broken joint on the pcb I have seen this many times in my shop. You need to take the actual unit in for repair, I mean the "Bump" and the "Problem" are indeed connected, and this is exactly what happens.

Mar 24, 2010 | Kenwood KDC-BT742U

1 Answer

No sound but still has power


Yes, one bad speaker connection can cause the radio to shut off all output in a type of protection mode to protect the rest of the speakers...if not that, if the vehicle is equipped with an amp, make sure the amp turn on wire is well connected.

Oct 23, 2009 | Pioneer AVIC-F700BT Car GPS Receiver

1 Answer

Turn on power and the amp goes to protect mode


disconnect the speakers and see if it does the same thing.
if it does not shut down,check that the speaker wires are not touching on the back of the speakers.
many times,people run over the wires with a vacuum or similar and a short results,or bump the speaker.most people have the leads way too long,and even if one strand touches,it will shut down the amp.
if it still shutting off,there is an internal problem.
the best place to go with an onkyo is an authorized depot.
they are tricky to work on.
i did onkyo warranty for 7 years.

Sep 06, 2009 | Onkyo TX-DS939 Receiver

1 Answer

Protection Problem on Samsung Digital Home Theater


Protect mode will kicking whenever a fault is detected.

Causes that can start protect mode are:

Electrostatic harges on internal circuits.
Leave the unit unplugged for power for one hour or so, this will allow discharge.

Bad speaker wiring.
Check speaker wiring, try unplugging and plugging back, or start after removing one speaker at the time.

Internal fault.
Internal fault is the natural cause for protect mode. If all the above did not work, then the problem is a blown component or an internal fault. In this case the unit must be taken apart , tested and repaired by an experienced person.
If the unit is less than one year old, or if you want to get service, call Sony at the phone number listed on the product documentation.

Regards.

Apr 14, 2008 | Samsung HT-DS610 System

1 Answer

Protection mode


Disconnect all speaker wires from the speaker terminals of the amp. If it powers up and doesn't go into protect when you increase the settings, the wiring needs to be checked. If it still shuts down, the amp may need to be repaired.

Does it shut down or make loud noises when you move the RCA cables where they plug into the amplifier?

Mar 27, 2008 | Power Acoustik LT-980/2 Car Audio...

3 Answers

2001 ford explorer sport trax


probably exposed wires are touching something or they werent spliced very good,id check every point wher the wires were spliced together

Mar 25, 2008 | Bazooka BTA10100 Car Subwoofer

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