Question about Infinity BASSLINK Car Subwoofer

2 Answers

Basslink servo light constant on

Have a basslink in the trunk of my car, loved it for 2-3 years now! went out recently- green servo light is on constantly. removed inputs and remote wire so power and ground only, still servo on. turned all controlls to minimum, fuses fine, red power light fine? out of warranty. really like to fix it. anyone know if way to reset or is amp blown? thanx in advance

Posted by on

  • Adam Hurlburt
    Adam Hurlburt Sep 10, 2017

    I'm commenting just to help anyone out there who is looking for a solution to this problem just like I was!

    I had all the same symptoms described: All connections were good, the unit powered on but no bass came out since the servo light was constantly on.

    If you're having this problem, give this a shot: You don't need any special tools. Just open the unit by unscrewing all the outer screws on the back plate where all the connections are. The entire circuit board assembly should come out. Locate Q117 and Q118 on the board, they are each a set of 3 solder joints that make a single-file line. In my case, these were caked with who-knows-what electrical gunk that was causing an electrical short. I just had to clean them with isopropyl alcohol and scrape in between each solder joint so that there was nothing creating a bridge between the joints. While you're at it, check for any other cracked solder joints in need of repair or anything that is obviously fried.

    This quick cleaning job got my system back up and running =) I hope someone finds this helpful before they spend money buying an entire new subwoofer!

×

Ad

2 Answers

  • Level 1:

    An expert who has achieved level 1.

    New Friend:

    An expert that has 1 follower.

  • Contributor
  • 1 Answer

So, thanks to the other posters here for getting everyone close the issue that brakes these things! I wanted to pile on, as I repaired mine. See the pics, but yes, you're going to want to get near the power resistors and transistors called out earlier - they COULD be failed, so you will need to do what I did and isolate them to test them (within goo electronic principles). For example, I have a Super Cricket transistor checker that will do the job in-circuit. Many of you will need to remove them to test them for gain with the right meter.

You can see in my pics that the resistors have cooked the caked sealant material, but the resistors themselves were intact and tested right at 3 ohms (correct). So, those weren't bad. However, one power transistor tested bad, so I removed it...to see it test well on the bench? Huh! So, I put it back in, and then notice that the solder pads to both locations were nasty in the original pics I took - they'd CRACKED at the pads! So, cold/cracked solder joints were the culprit here. I reflowed them and the amp powered back up nicely on the bench.

Again, check the pics they show where I had to do the work!
Basslink servo light constant on - img_8834-v1vtxldnc1vxmjv14nu3zmpa-5-0.jpg



img_8836-v1vtxldnc1vxmjv14nu3zmpa-5-5.jpg

Posted on Jul 24, 2017

Ad

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

Posted on Sep 26, 2007

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Need schematic diagram infinity basslink subwoofer


Design: The BassLink brings together a 10" subwoofer (treated paper cone, foam surround), a 10" passive radiator (to increase efficiency and limit distortion), and an extremely efficient, specially designed 200-watt Class D amplifier that work as an integrated system. Special circuitry monitors voice coil position to maintain linearity at high power levels, so you hear loud, clear bass.

Enclosure Type and Materials: The enclosure is made of an acoustically inert polymer which is rigid enough to resist flexing and dampens any resonance.

Servo-Control: The servo-control system continually monitors the performance of the speaker and ensures that the amplifier delivers exactly the right amount of power.

Class D Amplifier: This unit has a built-in 200 watt Class D amplifier which is highly efficient and designed specifically for use with the subwoofer and passive radiator combination.

Auto Turn-On Feature: When the speaker level inputs are used, the system will automatically turn on and off with the radio. Note: The auto turn-on feature does not operate when the preamp level inputs are used, unless the remote turn-on lead is connected.

Low-Pass Crossover: The low-pass crossover frequency can be varied from 50Hz to 120Hz for a seamless transition between the output of this unit and that of the other speakers in the vehicle. The crossover has a slope of 12dB per octave.

Bass Boost: The amplifier includes a continuously adjustable bass boost from -6 to +3dB centered at 40Hz.

Phase Switch: Allows you to select normal or reverse for best bass.

Mounting: You will be able to put BassLink in a variety of in-vehicle locations, thanks to its compact size and mounting feet that enable the rigid polymer box to be mounted vertically or horizontally.

Vertical Mounting Dimensions:
Width: 14.625"
Height: 13.375" (including feet)
Depth: 8.675" (10.076" including feet)
Horizontal Mounting Dimensions:
Width: 14.625"
Height: 9.5" (including feet)
Depth: 12.75" (15.1875" including feet)

BassLink LC Remote Level Control

Overview: The BassLink LC allows you to adjust the volume of BassLink powered subwoofer.

Installation: The BassLink LC may be mounted under the dash or may be dismantled and mounted inside the dash for a factory appearance.

Under-dash Mounting: Select a mounting location that allows easy, safe access to the control while driving. The BassLink LC has mounting "ears" to use as a template for drilling pilot holes. Attach screws through the "ears" to secure the BassLink LC to the mounting surface.
In-dash Mounting: Disassemble the BassLink LC by removing the Phillips-head screws on the front, rear, and top panels. Remove the bottom and side panels and disengage the RJ11 connector from the back panel. Choose a mounting location that allows easy, safe access to the control, and provides 1-3/4" clearance behind the mounting surface. Drill a 9/32" hole in the mounting surface. Feed the BassLink LC's potentiometer (with the knob removed) through the hold and use the nut provided to hold the control in place.
Connecting to BassLink: Route the cable behind the dash or other interior panels and under the carpet. Do not route the cable outside the vehicle. Connect the cable on both ends.

Inputs and Controls

Inputs:

Universal Interface: Front and rear, left and right Universal interface speaker-level inputs (for use with the supplied speaker-level input wiring harnesses)
Line Level RCA Inputs: Front and rear, left and right female preamp level inputs
+BATT (+12V): Gold-plated screw terminal, 0.350" wide
REM (remote turn-on): Gold-plated screw terminal, 0.350" wide
GND (ground): Gold-plated screw terminal, 0.350" wide
Fuse: There is an installed 20 Amp fuse
Remote Gain Control: Phone type jack for included remote gain control

Controls:

Gain Control: Rotary control that sets gain (variable from 250mV to 4V)
Crossover Control: Rotary control that sets the low-pass crossover point (variable from 50 to 120Hz)
Bass Boost Control: Rotary control that sets bass boost level (variable from -6 to +3dB, centered at 40Hz)
Phase Switch: Selects normal or reverse phase (0 or 180 degrees)
Power LED: The power LED glows red when the BassLink is on
Servo LED: The Servo LED glows green when the servo circuit has determined that the woofer has reached maximum excursion and power to the woofer has been modified to provide maximum performance. The LED should light momentarily during high-level bass transients. Note: Avoid adjustments that cause the LED to remain lit for an extended period of time


Thanks

Apr 01, 2012 | Infinity Bass Link Subwoofer Car Audio...

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

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


Hi,

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

Basslink Fuse Blown


if it has a short some where in the lines it will do that

Feb 25, 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 red light on but no sound


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

nuwan.

Jan 12, 2009 | 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

2 Answers

Amp keeps blowing fuse


I have this same problem. You have blown the internal amp. I have had 2 of these do the same thing. There is nothing you can do but report it to infinity and try to get the unit replaced.

Dec 21, 2006 | 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

Not finding what you are looking for?

Open Questions:

See all Infinity BASSLINK Car Subwoofer Questions

Infinity BASSLINK Car Subwoofer Logo

1,783 people viewed this question

Ask a Question

Usually answered in minutes!

Top Infinity Car Audio & Video Experts

xxxxxx xxx

Level 3 Expert

5006 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22393 Answers

Richard Lukszys
Richard Lukszys

Level 2 Expert

55 Answers

Are you an Infinity Car Audio and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...