Question about Infinity BASSLINK Car Subwoofer

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Basslink red light on but no sound

Im a tech guy who know the basic so ia have a basslink that stop working the red light is on servo light off but no sound for a second i tought that the speaker blow but i opened the basslink to hceck the speaker and is fine so is something in the motherboard amp so what could be wrong

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  • micki108 Jan 13, 2009

    thanks im gonna check that tomorrow cuz i work all day today ill let you know

  • silverspy0 Feb 21, 2009

    Same damn problem, Infinity repair center out here says it's the main board that needs replacing (I'm looking at mine right now, just took it all apart), and that's as much as a new Basslink. This is a horrible product that sounded decent for the year or so that it worked. This does not help Infinity's reputation.

  • danpecor Mar 21, 2009

    Same problem here. Bought unit used, should have listened to it work first. Power light comes on, but no sound. Believe me, I've checked every possible connection including every combination of speaker input and pre-amp (rca jack) inputs. I would like to know if this is a common problem with this unit.

  • Anonymous Apr 10, 2009

    I loved this thing in my Jeep Wrangler for the year or so it worked. No changes were made to my system and it stopped working. I am a electronic technician and know that ... with verified input ....either line level of speaker level ......there is no output. The amp is shot. Was looking to buy another of the same for replacement but not after what I am seeing about all the problems with this thing.

  • derbassspiel
    derbassspiel May 02, 2012

    I had the same problem. Mine turned out to be two fried resistors, numbers R143 and R144. They are 3.3K Ohm, 0.5W, +/- 5% resistors. I identified them because one end of each f them looked corroded and rusted. I checked them with a multimeter, and they had infinite resistance, i.e. were blown. I just got the new resistors at Radioshack and soldered them in. Now, it works fine! Your problem might not be the same as mine, but once you get the amp off to look at the board, just look for things that look wrong and replace them. It's not the most direct way to go about the repair, but when parts cost a couple bucks each, why not at least try your hand at it?

  • alsheensheeh
    alsheensheeh Sep 17, 2012

    haha same as all of you. i just ripped mine apart and found out there is a black spot ont the back of the motherboard. its actually a burnt sodder that says "R141"


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Check the all power lines and regulator .is any of them overheating?
then check the power amp ic or transistors.


Posted on Jan 13, 2009

Testimonial: "thanks "


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1 Answer

Basslink works for a few seconds after i turn on the stereo, then it fades away. The servo light is always on even when i disconnect the input line and turn the knobs to the min level. What could be wrong?

Hello, check the +15v and -15v on the Switching Power Supply Control board. If one or both are missing, it is probably Q117 for +15v and Q118 for -15v. If one is missing the limit comparator will rail to one side and cause the auto variable volume control to trip the servo protection.

Oct 02, 2010 | Infinity BASSLINK Car Subwoofer

1 Answer

Servo light

You have an internal problem in the amplifier of the sub woofer box. You need to take it in to be checked at a service center, there are no quick fixes for them. Sorry,


Jul 01, 2008 | Infinity BASSLINK Car Subwoofer

1 Answer

Basslink has no output, but Power LED and Servo LED always on.


One or more of the DC to DC outputs might be bad. Check the
/- 54v on the main PCB and the /-15v on the switching controller PCB.
Losing one side of the 15v will cause the limit comparator to rail and force the servo protection, even with no input signal.

Apr 02, 2010 | Infinity BASSLINK Car Subwoofer

1 Answer

Is the light on the infinity basslink suppose to be red or green

Hello jmw3031,

The Basslink should have both a red power LED and a green servo LED. The red LED should be on when power is applied. The green servo LED should only come on during high-level bass transients. Turn the gain down slightly if it stays on for extended periods.

Hope this helps.

Jul 15, 2009 | Infinity BASSLINK Car Subwoofer

1 Answer

Basslink Stoped working after a month ** sound ** red LED

check all your power fuses and insure you havec power where it is supose to be. maybe you have blown a fuse.

Mar 09, 2008 | Infinity BASSLINK Car Subwoofer

2 Answers

Servo light off but no bass

you must have lost power to your servo check all fuses and insure you have voltage up to the fuse

Feb 24, 2008 | Infinity BASSLINK Car Subwoofer

1 Answer

Power LED lit, Servo LED lit as well, no output

check the power cables on the amp and the inputs.isome time when ground cable disconnect the lioghts will light up any way. depending on the way ur vehicle is ground ed .toyota chssis r usually posite un like the norm which is neg.rating please

Jan 21, 2008 | Infinity BASSLINK Car Subwoofer

1 Answer

Basslink servo light constant on

defect age,short worn its time through had the same thing happen to mine,A SUGGESTION PUT A 25 AMP FUSE,AND PULL IN AND OUT THE GAIN TUG IT,IT SOMETIMES STICKS AND SHORTS YOUR UNIT OUT,GOOD LUCK

Feb 23, 2007 | Infinity BASSLINK Car Subwoofer

3 Answers

Basslink intermittant

i posted similar prob. servo lights when power is being cut to speaker (over drive) and manual shows it for purpose of tuning gain. it should flicker at highest input only...mine is on always too. infinity wasnt much help since mine is out of warranty.

Nov 13, 2006 | Infinity BASSLINK Car Subwoofer

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