Question about HP Compaq JBL Pro (401508-001) Computer Speakers

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The left speaker, which connects through the right speaker via RCA is shorting out, you have to twist it in a certain spot in the input in order for it to get sound. How can this be fixed?

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Sounds like you have a defective jack that needs replacement.

Posted on Apr 26, 2010


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1 Answer

In my JVC RX 8SD only works a channel. How do I repair this defect?

Start with the simple things.
  • Check left right balance
  • Swap output speakers left to right
  • Swap the speakers at the receiver to make sure no wire open/short
  • Swap input RCA cables left to right red/white - white/red
Ok No JOY!
JVC has thermal overload circuits/overload on most of there Amps.

Remove power for a minute or two to see if there is a reset.

Rewire speaker connections to speaker set 2.

Connect REC out to Rec In swap cables and see if problem is in pre-amp or power amp.

Check internal fuses.

Jan 19, 2016 | JVC Audio Players & Recorders

1 Answer

How do I hook up a powered subwoofer to a pioneer sx-316?

Many subwoofers accept both line level (RCA jacks) and amplified inputs (+ and - speaker terminals). The Pioneer SX-316 does not offer line level output, only amplified outputs via the PURPLE + and - speaker terminals. This means that in order to use any subwoofer with an SX-316, the sub woofer will need to accept a + and - speaker wire connections for input Your manual speaker connections are on page 11 of the manual which can be found here:

Starting at the rear of the SX-316; run a speaker wire from the PURPLE + and - terminal (SUBWOOFER) to the + and - speaker input terminals on the subwoofer. See your subwoofer manual or experiment (at your own risk) with connecting the speaker wire from the SX-316 to the subwoofer's + and - LEFT only, RIGHT only or BOTH left and right speaker inputs. Do not connect wires from the SX-316 to the speaker OUTPUT terminals of your subwoofer.

Finally, adjust any variable low pass filter knob or setting on the subwoofer to the lowest frequency that your main speakers are capable of producing. If you're not sure what that value is, try setting the subwoofer to 100Hz and judge how it blends with the main speakers. If it seems a little too bass heavy and thick then reduce the setting to 80Hz. On the other hand, if the sound seems to be slightly thin and lacking weight, try increasing the setting to 120Hz. By careful listening and a bit of patience you will be able to get the sound to seem balanced and well blended.

Good luck!

Apr 06, 2014 | Audio Players & Recorders

1 Answer

Can I connect exterior speakers to my DP32670 television? Thanks Tom Moreland

In order to connect external speakers to your DP32670 television, which has only RCA audio and digital audio outputs, you will have to either:
  • Use speakers that were designed to accept an RCA audio input
  • Use a separate home theater receiver connected via either RCA audio or Digital audio

Mar 06, 2011 | Televison & Video

1 Answer

The speakers on the left side of my technics stereo have stopped working and are making a loud humming sound while the speakers on the right side still play music normally model number is sa-120 and the...

Check the input cables from the source you are playing at both ends. Sounds like an input problem, not a speaker problem. Twist the RCA connectors as you push them in to make sure the connection is good.

Aug 29, 2010 | Audio Players & Recorders

1 Answer

How to connect rca plugs on metra 70-5510 what color is for what speaker colors are purple green white and gray thanks

White RCA is for left input/output and red is for right input/output. The purple wires are for the rear right speaker, the green are for the left rear, the white are for the front left and the gray are for the right front.

May 13, 2010 | Car Audio & Video

1 Answer

Speaker left channel? must be broken as both speakers are still working on right input (channel, not sure if this is the terminology?)

Have you tried isolating the problem to see what exactly the problem is? First I suggest disconnecting the left speaker from the system and test the speaker by it's self. If you have any technical knowledge and an ohm meter, you can connect an ohm meter to the two wires comming from the speaker and see if you get 8 ohms or less. You SHOULD see something in the neighborhood of 8 ohms of resistance if the speaker is good. If you're not a techy and want a simpler "go/no-go" test on the speaker, then take the two wires going into the back of the speaker and BRIEFLY touch them to the two terminals of a 9 volt battery. If the speaker is good, you will hear a "pop" in the speaker as the battery connects. Again, ONLY BRIEFLY touch them. DO NOT connect them to the battery and allow them to stay on for more than about a half second or so, else you run the risk of burning up the voice coil in your woofers.
If the left speaker passes the test, then let's look at the receiver unit. I am not familiar with this particular make and model, but I dare say it should have multiple inputs. Just to be extra certain that the speaker wasn't somehow the problem, go ahead and connect the right speaker to the left channel and let's test the left channel of the receiver. Try using the various inputs on the receiver (i.e. am/fm, CD in, AUX in, Video in, what ever it may have).. Does the left channel yield ANY sound at all under any conditions?
If I'm not mistaken, the system has a separate power amp and receiver unit. Try putting a signal into the aux inputs of the power amp it's self using an RCA cable. You can connect the other end of the RCA cable to most any other CD player, or you can usually touch your finger to the center conductor on the RCA cable and listen for a buzz or click in the left speaker output. If it doesn't give any sound, then the problem is most likely in your amplifier. If it does give you sound, then we need to look at the receiver.
Something else I just noticed about this particular unit you have, is that it uses a ribbon cable to connect the receiver to the amplifier unit. I would suggest that if the amplifier checks good, then try replacing this ribbon cable with another one. You may have to have one specially made, or you may be able to order one. I hope that helps.

Oct 25, 2009 | Philips (MCD700) System

1 Answer

Can I hook the reciever to mm bose subwoofer and 5

if bose unit has built in amplifier .Then your sherwood would have to have a variable RCA output jacks in order to work with sub.Then bose audio input RCA cable would connect there.If bose unit does not have built in amp .Then you would connect sherwood left/right speaker outputs into bose left/right inputs .Then other bose speakers will connect to bose unit

Jul 30, 2009 | Sherwood RX-4105 Receiver

1 Answer

Broke one end of the cable that connects my 2 behringer ms20 speakers.Which replacement part do i need?

What input were you plugged into? If you are talking about the cable that connects the two cabinets from right speaker to left speaker, it looks like a standard RCA cable to me. It basically connects the signal content from the right cabinet to the left cabinet. It should be a shielded unbalanced RCA to RCA cable.

May 13, 2009 | Behringer MS20 Digital Monitor Stereo...

2 Answers

Left channel not working

The first thing I would check has already been done, the only other thing would be fuses. I am preety sure there is a protection fuse at ever channels output to protect against a dead short. I am sure you have already fixed this problem but I thought I would give it a try. Let me know what you found.

Jul 13, 2008 | Denon AVR-3802 Receiver

1 Answer


you coudl use a single rca to a left and right rca cable. However most woofers will have a lfe single rca input on the woofer that you connect to a single rca on the receiver.

Are you sure you are not confusing the +/- on the woofer that is used to connect your speakers? ie. my woofer has the +/- so i can connect to my front speakers and my receiver to filter the low frequency sounds via the woofer.

hope this helps


Feb 19, 2008 | Sony STR-DE575 Receiver

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