Question about Panasonic CQ-DFX972U CD Player

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Blowin fuses fuse panel has 15amp fuse do i still need in-line fuse on battery lead

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Re: blowin fuses

It is always best to have fuse on battery lead but as long as the leads are definately going through the fuse panel then you should have no problem but if you have the fuse and it blows then their is deffinately something wrong.
The fuse on the battert leads is a backup as long as the wires are running through main fuse panel the reason for extra fuse is because the main fuse works other things running off it not just the one for radio so the fuse on the battery lead is their so that if something wrong with the unti then that fuse blows and only that 1 unit wont work but if main fuse blows other things might not work so its always best to have inline fuse so that only the 1 unit stops working incase of problem.
so its not vital you have one but it usefull so that you know where the problem is coming from and saves time tracking down fault

Posted on Jan 12, 2008

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My clarion vz401 isn't holding memory. I believe memory cord is yellow or red? One is power and one is memory. Tried putting them color to color but it didn't hold memory. Then I tried feeding the yellow...

the red needs to be wired to a 12v+ ACC(dash accessory circuit) which is only powered when the ignition is on, the yellow needs to be wired to a 12+ constant(or, direct line, with in-line fuse to battery +), whether the car is on or off. if the wires behind the dash both lose power when the car is off, the yellow lead will have to be re-ran, possibly thru the firewall, and to the battery(with appropriately insulated wiring, and an appropriate fuse.

instead of going thru all the trouble of running to the battery, it may be beneficial to get a multi-tester ($20-40, usually), in order to test the wires behind the dash for a 12v+ constant and a 12v+ acc.

Dec 28, 2014 | Car Audio Receivers

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My jvc cd reciever model #kdr616 has for some reason decided to constantly blow the 15amp fuse on back of the unit. can you point me in thev right direction to rectify this problem. thanks

Hi dionsparky,
If your replacement fuse has an exact current ratings and yet immediately blew after an installation, this is an indication of shorted parts in the supply voltage line. Most likely it was caused by shorted output IC which is mounted in the heatsink. If your handy with electronics and have some necessary tools, pull-out this IC by deslodering it to the board and try the unit without this parts. If the fuse does not blew and finally the unit power up, you must replaced this IC and your unit will back to normal again.
Hope I helped you.
Have a nice day!
Thanks for using Fixya.

May 27, 2011 | JVC Car Audio Receivers

1 Answer

I hook up a amp with red and black wire from the car stereo, then the stereo stopped turning on, why?

You probably blew a fuse. The power wires for a stereo can not handle the current an amp needs. An amp has to get it's power directly off the battery. Get an amp kit that has the power wire, ground wire, turn on lead, and fuse w/fuse holder. fuse the power no less than 12" from the battery.

Apr 19, 2011 | Boss MP3-3030R CD Player

1 Answer

It just stop working wanted to no if there is a fuse in the back of the unit

If your head unit was installed properly there would be 15 amp inline fuse on the yellow power lead.
Also check your vehicles fuse panel for a blown accessory fuse.

Mar 03, 2011 | Alpine CDM-7874 CD Player

1 Answer

The cd player is not able to save eny thing like radio channals and every time when i start the car engin the cd make auto eject it mean that i have a problem with saving can u help me about this

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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1 Answer

How to wire the power conections

if your car doen't have a factory harness that you can grab power (+) and ground (-). you can run one wire from the battery (fused 10-15amp) and connect that to the yellow wire on the sony. Then find a fuse in your glove box (preferably the cigarette lighter fuse) that send power when the key turns to ignition (fuse that also) then hook that wire up to the red wire coming out of the sony. As for the black wire coming out the back, find the closest bare metal behind your dash and use a self-tapping screw to secure the wire to that. If you do have a harness behind your dash you can normally get all those wire in that harness (saves a lot of time).

Apr 29, 2010 | Sony CDX-L480X CD Player

1 Answer

Hi my yellow battery lead with the fuse

Are you using AMPs? You may have everything connected right but, when you turn it on the battery doesn't have enough supply to operate the system. This happen to me and I had to change my alternator, and battery.

Oct 24, 2009 | Alpine CDA-9887 CD Player

1 Answer

No power to radio after new battery installed

It sounds like you had a power spike when you installed the new battery. I would check the 2 factory fuses for the radio, one will be for the radio ignition lead and one will be just battery lead (usally assosiated with the clock). Lastly if those 2 fuses were ok you may have to pull the deck and check the fuse in the back of the deck.

If the fuses are all ok and no wires are disconnected, then its possible that something else went out. Good luck and take care!

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2 Answers

Clarion DXZ785USB - Connecting Fused Lines

You will definitely need to connect the Yellow Wire Memory Back-Up Lead, since this is the connection from the radio to the battery that stores the time and your presets. If it is not hooked up, you can use the radio, but all your settings will return to default once you turn off the car. The Yellow Wire Bus Power Lead sounds like it would be for powering an auxiliary unit like a Sat Radio or HD Radio add-on. You will not need to connect this unless you have an add-on such as one of these.

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1 Answer

Burned the in line fuse on my expedition.

The cover of the fuse shouhd twist off so you can replace the fuse.

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