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03-10-2012, 07:56 PM
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#1
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Senior Member
Join Date: Mar 2011
Posts: 163
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after reversing battery cables Stereo not working
Ok like an idiot I connected the battery cables in reverse today. I was moving the slide out and it did not move so I grabbed my wrench to loosen the slide from underneath and had my DW to hit the switch to go out and the slide out came in, did not know the motor would move in reverse, but if the battery is connected backwards so that made me think "oh $&?#" I have the cables backwards. It caused the 2 - 40 amp fuses to blow. I replaced the fuses and everything seems to be working but the stereo, checked and even swapped the stereo fuse and still it did not power on. Is there a fuse on the back of the stereo?
My saying everything seems to work, I will elaborate and say the lights, which when turned on I hear the fan on the converter come on and that tells me it is working. Am i correct? What other method can I use to confirm the converter is not damaged? Should I check the refrigerator?
Please help one of those idiots....me!
HC
__________________
2008 Dodge Ram 2500 QC CTD 4x4
2014 Cherokee 284BH
Equalizer 1,200/12,000 WDH
TST 507RV TPMS
MaxBrake BC
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03-10-2012, 08:12 PM
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#2
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Senior Member
Join Date: Mar 2011
Posts: 163
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BTW I have no clue as to the type of stereo. It is in a 2010 Cherokee 26L.
__________________
2008 Dodge Ram 2500 QC CTD 4x4
2014 Cherokee 284BH
Equalizer 1,200/12,000 WDH
TST 507RV TPMS
MaxBrake BC
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03-10-2012, 09:01 PM
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#3
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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there may be a fuse behind radio but thats a big maybe .
most newer converters are protected from reversing cables . I think youll be ok .
hopefully your radio is to
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03-10-2012, 09:18 PM
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#4
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Senior Member
Join Date: Mar 2011
Posts: 163
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Thanks turbo
Do you have a suggestion about the radio...did it get fried because it will always try and get power when a battery is connected?
__________________
2008 Dodge Ram 2500 QC CTD 4x4
2014 Cherokee 284BH
Equalizer 1,200/12,000 WDH
TST 507RV TPMS
MaxBrake BC
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03-10-2012, 09:24 PM
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#5
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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im not sure about the radio man . normally the fuses will blow for the converter to protect all the 12 volt devices .
it cannot hurt to pull radio to check if theres a inline fuse . and hopefully you find one!
I have seen a converter fried before from hooking cables up backwards "fuses didnt blow" It "appears" that your ok .
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03-10-2012, 10:11 PM
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#6
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Current River Rat
Join Date: Jan 2012
Location: St. Charles, Missouri
Posts: 139
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More than likely you will find an inline fuse behind the radio.
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Bruce & Sarah Tanner
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03-10-2012, 10:14 PM
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#7
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Moderator Emeritus
Join Date: Mar 2008
Location: St. Paul, Minnesota
Posts: 3,367
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I did the same thing once and had to remove my stereo from the mounting to get at the in-line fuse behind the unit.
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03-10-2012, 10:18 PM
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#8
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Senior Member
Join Date: Nov 2011
Posts: 755
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I've done that too. Lots of people have. Try wiggling the radio fuse in the fuse box, see if that helps. Pull the radio and use your test light see if you got any juice back there.
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2012 F-350 4x4 King Ranch Super Duty CC 6.7 Turbo Diesel 3.55 e-locker
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03-10-2012, 10:41 PM
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#9
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Senior Member
Join Date: Mar 2011
Posts: 163
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Thanks
I will pull the stereo and see if mine has an inline fuse. I guess I am glad that is the only issue! HC
__________________
2008 Dodge Ram 2500 QC CTD 4x4
2014 Cherokee 284BH
Equalizer 1,200/12,000 WDH
TST 507RV TPMS
MaxBrake BC
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03-11-2012, 03:19 AM
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#10
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Site Team
Join Date: Jan 2007
Location: Goodyear, Arizona
Posts: 33,791
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if you posted a pic of the stereo, i'm sure someone could tell you what it is.
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Dan-Retired California Firefighter/EMT
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03-11-2012, 09:19 AM
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#11
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Senior Member
Join Date: Jul 2010
Location: Lake Charles, La.
Posts: 1,536
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not sure abt ur stereo but some equipment has a reverse polarity diode in it that will prevent damage. usually if this is blown, it continues to blow fuses until it is replaced. i have seen a couple cases where the diode went open but that was rare.
i would go into the stereo and see if are any visible signs of burning components near where the power comes into the unit. hopefully, it will be an easy fix.
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03-11-2012, 10:33 AM
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#12
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Senior Member
Join Date: Mar 2011
Posts: 163
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Here is a picture of the radio. HC
__________________
2008 Dodge Ram 2500 QC CTD 4x4
2014 Cherokee 284BH
Equalizer 1,200/12,000 WDH
TST 507RV TPMS
MaxBrake BC
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03-11-2012, 11:08 AM
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#13
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Senior Member
Join Date: Nov 2011
Posts: 755
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Looks like my zx75 and yes there should be a fuse behind it. Mine survived having the battery hooked up in reverse and it took me 30 minutes to figure out what i had done. Just replace the inline fuse. Here is a pic of my 75.
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2012 F-350 4x4 King Ranch Super Duty CC 6.7 Turbo Diesel 3.55 e-locker
2011 Palomino Puma 30KFBDS with Side Paw Kitchen and Bunkhouse
Equalizer E2 Hitch
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03-11-2012, 11:53 AM
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#14
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Senior Member
Join Date: Mar 2011
Posts: 163
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Thanks
Now to get an inline fuse to replace the one that is blown....15 or 10 amp?
If I had removed the sticker looks like I would have seen the model #.
Again thanks for the help!
HC
__________________
2008 Dodge Ram 2500 QC CTD 4x4
2014 Cherokee 284BH
Equalizer 1,200/12,000 WDH
TST 507RV TPMS
MaxBrake BC
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03-11-2012, 12:02 PM
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#15
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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Install what was in it nothing more
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03-11-2012, 04:26 PM
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#16
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Senior Member
Join Date: Mar 2011
Posts: 163
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It has an inline fuse with 15AL250V marked on one end. Went to Auto Zone and they did not have it, they said the 250 volt is different than the ones they normally carry...the same at 3 other parts stores. Anyone know where I should look at next?
Thanks
HC
__________________
2008 Dodge Ram 2500 QC CTD 4x4
2014 Cherokee 284BH
Equalizer 1,200/12,000 WDH
TST 507RV TPMS
MaxBrake BC
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03-11-2012, 04:45 PM
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#17
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Senior Member
Join Date: Jul 2010
Location: Lake Charles, La.
Posts: 1,536
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if it turns out that the diameter is a little too big, try radio shack. they use a different diameter fuze in electronics. i ran into that with a backup camera. i don't recall the proper term. i found the ones for the backup camera at radio shack.
if the fuse brings it back to life, the reverse polarity diode did its job. if it blows again, that diode has probably shorted. ran into this quiet a bit back in the CB repair days. the ones that succeeded in buring that diode completely out usually were the ones that replaced a 2amp fuse with a 20. that diode can be very expensive; probably abt 25 cents. if someone else changes it, they will probably charge $7.5 labor.
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03-11-2012, 04:53 PM
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#18
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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03-11-2012, 07:12 PM
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#19
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Senior Member
Join Date: Mar 2011
Posts: 163
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Went to Radio Shack and Walmart but no luck. There are a couple of other stores/distributors in the area so I will check with them tomorrow and see what I can find. Everyone keeps telling me they have never seen a 30 mm fuse at 15 amps and 250 volts with the ends dimpled. I am also going to search the web and see what I can find for long term needs. Just took the trailer back to storage after cleaning and doing the storm door modification, TV install, and trying to blow it up by hooking the battery up backwards. HC
__________________
2008 Dodge Ram 2500 QC CTD 4x4
2014 Cherokee 284BH
Equalizer 1,200/12,000 WDH
TST 507RV TPMS
MaxBrake BC
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03-11-2012, 08:18 PM
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#20
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Senior Member
Join Date: Sep 2010
Location: Eastern Ontario
Posts: 4,167
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If you can not find to proper fuse to fit, then just buy an in-line fuse kit at your Radio Shack and change the one at the back of your stereo....
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Fonzie
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