Question about Panasonic CQ-DFX302U CD Player

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** power checked all power wires with voltage meter, checked fuses, checked and rechecked wire connections, and still ** power. Is there a fuse inside the stereo? any suggestions?

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There is usually a fuse on the back of the unit. Did you check that? There may be a power supply issue to where ever you took power from? Maybe not a constant or "breaked" tap point. Go over the following site and see if it helps. If all else fails, the unit could be faulty. Go back for warranty.

http://www.ehow.com/how_5829_wire-car-stereo.html

Posted on Mar 10, 2008

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I have a jvc kds-16 receiver. It has been working for about 5 months with no issues. Now there is power to the head unit but I have no sound. I have checked all of the connections, nothing is loose, the...


buy a digital volt meter and start checking fuses for the radio at fuse panel . if blow replace it . if not blown remove radio from dash check to see if radio is still grounded . if still grounded take the volt meter turn on to dc volts and take black test lead touch to your radios ground the touch the red test lead to the red with to see if you get 12 volt with car on if not need to find out why .. take to professsinal ..

you can also check the yellow wire on radio it should have 12 volts allways doesnt matter if car in off or running this saves memory for clock and station presets.

if every thing is test out right then you need to buy new radio ..

if you dont feel good about doing this yourself find a mecp car audio installer and have them troubleshoot your problem maybe expensive but a good tech could find out problem with in the first 30 to 45 minutes it get 35.00 per hour to troubleshoot car audio system ...


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Alpine car stereo model #CDA 9825


you could remove the radio from the socket..............


yes maybe the fuse fot blown
but then it wont work at any time

my guess is that may be some internal wire got burnt

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you must have a digital volt meter and to find this out .
1. remove radio
2. take the volt meter and turn it onto dc voltage
3 take the black test lead and put it on ground for the radio it will be black find in harness on back of radio .
4 take the red test lead and find the yellow wire this is constant power must have 12 volt on wire doesnt matter if the car is running or off this wire is from battery it gives the radio power to save station presets and the clock and return the cd to were it left off from when radio turned off.

if no power at yellow wire go to fuse panel and use your digital voltmeter to check fuses for a blow fuse . take the meter turn it on meter to dc voltage and the take black test lead and find a good ground (clean piece of metal and then the red test lead start touching testing the fuses.


(turn your car ignition switch to run but dont start car) why some circuit in car only power up when you have car ignition on ....)

on the fuse there is the amp rating in the dead center on either side of the rating is the blads of the fuse expose to test the fuse touch the red test lead to the left and see if you get 12 volts. then test the right side of the fuse to see if you get 12 volts if not fuse is blown . do this to all the fuses untile you find a blow fuse you could just pull one fuse at a time untile you find blow fuse. if you do this make sure right amp fuse get back to the right spot in fuse pannel. if not you could have a fire maybe or melt something in car if a circuit fails and goes to blow fuse and fuse is too big and fuse doesnt blow ....

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My Kenwood DPX-4020 suddenly went "dead". No power whatsoever on the led's and nothing happens when i push any/all of the buttons. I have it reset many times, checked the wiring's and fuses at...


1st you need to check the fuse in the fuse panel in your car to see for some reason the radio fuse is not blown . if is change it . if not take your radio out and see if fuses for radio is blow on back of radio then some have a fuse on the red wire check fuse there too. if nothing buy a digital volt meter and start checking your ground wire to see if it broke . take volt meter turn on dc volts put black test lead on your radio ground then take the red test lead and and start touching the yellow wire to see if you get a 12 volts on meter if you get 12 volts ground is good ... then check the red wire turn on the ignition switch and put the red test lead on red wire and see if you get 12volts if nothing

either you have bad ground or you have a fuse blow in car some were .. if you can't figure it out call a local mecp certified shop and have them look at it ....

its possible that the radio is just died and you need to buy a new one electronics dont last forever when you use them daily ...


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I am installing this model, and a hot wire touched the case and the radio stopped working. Replaced the fuses and still nothing.it was working before this happend, what can I do to fix it?


if the fuse blown is located outside the radio..... check the supply voltage, there is two supply voltage, the yellow wire is hot at all time and the red is through the acc. if these two wires have power, inspect some parts inside radio,

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Switched stereo installed new car now no power


If your stereo has a fuse it will be in line with the hot wire (usually a red and/or yellow). The neutral is usually the black wire.

Unless you crossed the neutral wire by cutting it, you probably didn't blow a fuse. Plugging in a wiring harness will not blow the fuse. You can go to an ie. Autozone store and buy a car fuse tester or use a volt ohm meter to check your fuses. With the volt ohm meter set to dc volts you could check the harness by touching the probes to the wires listed above where you will be looking for a 12 volt reading.

Don't forget to check the on/off button with the key turned partway on or in the position that displays the parking and interior lights.

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Why is it when we are trying to hard wire a stereo into the car the carwont start the car still has all power but will not try to turnover


you might want check your battery cause you could have dry cell if thats not it then you might want to re check you connections and wiring get a wiring diagram and harness and do it like that if it still is not working check your fuse box inside the car for any fuses that could be blown for instance the one leading to you ignition which you could have blown by trying to hard wire or tie into the that lead you dont want to ever do that you want want alway make sure you know were somting ties to electrically in a car direct current is not like ac alternating current in that you dont have near the voltage and 2 you cant compansate for power when pulling from another source unless its strait from the battery it self cause it can cause all the needed power that your car has to channel or split thus breaking current or blowing fuses ect

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My kenwood will not save any tuner stations or eq stuff??


check your "constant power" (battery power) lead with a meter and make sure it's got 12v dc power with the key "out" of the ignition. If there's no power check the vehicles fuse and the radio fuse. Hope this helps

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Assuming that you checked the fuse, is there any wires in the area that are not connected and can you check them for power? If not, ground one side of your meter and take a wire and wrap around the other lead (set your meter for dc voltage) splice or wrap a straight pin onto that wire coming off the meter. Turn ignition on and stab wires until you get a voltage reading. The best wire would be the color wire coming from the radio fuse holder. But at this point you need power so which ever wire that gives you power splice it to power input of the radio.

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1 Answer

CANT GET POWER FOR MY SYSTEM


Make sure you check all the fuses, this means the fuses on the radio Red and or yellow wire, the ones in your fuse panel, The ones under the hood, (if any) the fuses in or connected to your amp. The best way to do this if you do not have a volt / ohm meter is to buy new fuses of each typ used in your sustem and just swap them out. As you say your whole system is dead including the Head Unit (radio) after replacing the fuses you will need to check to see if all the wires to the radio are still properly connected especially the grounds. If every thing above checks out then you have a dead radio and it will need to be replaced. Again as you say the WHOLE SYSTEM is out I assume you mean the radio as well.

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