Question about Jensen VX7020 6 2 Inch MultiMedia Bluetooth

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Jensen vx 7020. screen lights up, nav works, tells song and artist but no sound. sometimes after about 45 min or so the sound kicks in any ideas ?

Installed about a year ago everything worked perfect. now no sound but everything else works. I have no amps just new Fosgate speakers installed as a package sometimes sound in 2or3 min but sometimes not at all. No popping sounds or static just dead silence.

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  • Wilfred Smith
    Wilfred Smith Dec 06, 2017

    you have a blown ic ampplifier

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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The Marv
  • 72 Answers

SOURCE: jensen vm9411 no sound

Check to make sure your vehicle does not have a factory amplifier. If you used a fit kit with wiring harness. try looking at how many wires were used in the factory unit compared to haw many you are using now. see if there are extra wires in the vehicle. If there is extra wires it is a pretty good clue the vehicle has an amplifier and will have to be rewired.

Posted on Sep 01, 2006

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Vulfen
  • 5 Answers

SOURCE: Jensen LXA400

I have this same amplifier. I have noticed several ways it will "not work" during my ownership of it. I have it connected to a seperate battery to save my alternator, battery, etc as it is a power hungry beast for how low the output wattage is. Test the input voltage to see if you have enough, one way to see this is to check the "jensen" emblem that lights up. If you dont have enough power it will appear dim and only the right side lights up. Also the amplifier will not work if your speakers are "blown" even a little bit. Ive taken speakers that wont work on my lxa400 and connected them to a higher power amp and they will work (although they will sound horrible) If youre smart you will keep the gain under 3/4 on this amp, I see some people have found out the hard way that full gain fries the amplifier circuitry. Not an expert on electronics but it smells somewhat like melting glue or plastic. Ive noticed a lot of people have problems with the RCA jacks as well. There are 8 jacks, in two clusters. The first one is A+B and the second is C+D. Note: You do not NEED Y connectors on this amp! Connect your output rcas from the deck to top left and bottom left jacks of the left cluster. This will give you left and right (a+b) output from the first set of speaker outs. Then connect an rca patch cord from the top right and bottom right jacks of the first cluster and connect the other end to the top left and bottom left of the second cluster. This will give you output from the second set of speaker outs. Remember that this is in 4 channel mode. I dont remember the set ups for 3 channel but two channel I believe is the left deck rca goes to top left of the first cluster and the right deck rca goes to the top left of the second cluster. Then you just wire the speaker outs according to the picture on the amplifier. something like this: _________________________ |(+) - (-) +| ~~~~~~~~~~~~~~~~~~~~~~~~~ Speaker + goes to (+) and speaker - goes to (-) Also addressing another issue if you want to increase the wattage to your speakers you just use a lower resistance speaker (2ohm instead of 4) I would not recommend using anything over 4 ohms. As for the high level inputs, I dont recommend using them unless you have the plugs that go with them, its a lot easier to wire your deck rears to a line converter (changes straight speaker wire to RCA jacks) or to just buy a new deck with RCA outs. Last item, common knowledge: 400 watts does NOT mean 400 watts!!! This amplifier puts out very little actual wattage (50 or 83 per channel depending on the load) Hope all this helps someone out there.. Anyone who knows the 3 channel setups I would appreciate it.

Posted on Jul 15, 2007

  • 2 Answers

SOURCE: JENSEN XA 184 AMPLIFIER

Looking at amp pin no.1 (top row on left, closest to the GND terminal) from left to right
{ output } { input }
[FL-] [FR-] [RL-] [RR-] [FL-] [FR-] [RL-] [RR-]
[FL+][FR+][RL+][RR+][FL+][FR+]{RL+][RR+]
{ output } { input }

Posted on Nov 20, 2007

SOURCE: Subwoofer just stopped working. There's power but no sound.

I have the same problem. My guess is that the subwoofer coil is messed up. You MIGHT have to get it recoiled. But before you do any of that get someone with a sub to play their sub in your car, if it works.... then your sub is messed up, if not.....then your amp is messed up ( trial and error ). Today i noticed my subs rubber surrounding is crooked, that may be the problem for me. Also when I press down on the sub it makes a sticking sound, like something came loose. So once i get everything opened and out ill let you all know the solution. Good Luck!

Posted on Apr 10, 2008

blueextc3221
  • 15935 Answers

SOURCE: jenson 4chnl amp pushing 4 6x9 jenson speakers,

Turn on thump can vary from a slight pop to a mind shattering, teeth rattling BOOM! This thump is caused by the audio circuitry stabilizing when power is applied. Most amplifiers and source units have muting circuitry that lasts a couple of seconds to allow these fluctuations to subside before passing a signal. However, if the amplifier un-mutes before the source unit or any other accessory, you better watch out. Here are some things to try if you have turn on thump.

  1. Verify that the amp has a good audio ground reference. In order for the amps to function properly, the audio ground must be referenced to chassis ground at the source unit. If it is not, the amplifier could oscillate. To check for a good ground reference, take a volt-ohm meter (VOM) and measure the resistance between the chassis of the radio and the shield of the RCA line level outputs of the radio. This reading should indicate a direct short. If this is not the case, grounding the shield of the RCA line level outputs to the chassis of the radio will probably be necessary.
  2. Don't install the system so the amplifiers can be switched on when the source unit is turned off.
  3. If you still have thump, add a turn on delay module in line with the remote turn on wire to the amp.

SEE THIS LINK as well for additional information.

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Posted on Mar 19, 2009

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