20 Most Recent Infinity BASSLINK Car Subwoofer - Page 2 Questions & Answers

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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.

Run the ground back to the battery. The body is not a good enough conductor.

The issue is most likely a short in the amp internal circutry where power is essentially flowing without resistance acrosss the short. You may or may not have sound or crackling noise as it depends on where the short is.

If you are electronically inclined, I suggest the folliowing:

- disconnect all power and open the amp up
- look for any burn marks around the circut board and parts.
- first focus in on the area where the power comes in - see if any diodes (black cylinders with stripes on them) are burnt / cracked
- next have a look at all the MOSFETS. These should be 3-legged components and will likely be mounted to the shell or heatsink. Look for any burn marks or cracks on these.
- also look for any wire or component that may be shorting other components. Generally all wires should have shielding and all components should be soldered firmly. Anything crossing other components could be a problem.

If you find any burnt/cracked components, they will need to be replaced.

Here is a sample image showing the MOSFET chips to the top and bottom on the aluminum rail.
http://memimage.cardomain.com/ride_images/3/2514/3981/31284490262_large.jpg

Hi,

Does the servo led stay on? If so, you might have a fractured solder joint. Inspect the switch control PCB for fractured solder joints and check the Positive and Negative 15v outputs on the same board.

check your amps ground wire i had similar prob the vibration from engine caused the wire to move interupting the current

Hi,

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Hope this solves your problem. Thanks for using FixYa.

i think you dindt but the remote right were it suppose to

If the sub already has an enclosure, (box) put some legs on it and enjoy! If no enclosure, you will need to find out what size and type of box you want, go to a car audio dealer. I have replaced my home speakers with car speakers, MAKE SURE YOU KEEP THE OHM RATIMG THE SAME!!!!!!!!!!!!!!!!

Simple as it sounds, try Home Depot/Lowe's! They will have them! Been there, done that!

Sad to say but this usually happens when one of the capacitors go bad or something else internally. Most of the time it's cheaper to get them fixed, but I have seen them get up there too! Hope this helps some.

go to the website that built the part. they usually have manuls you can download and get exact part number.. then go to ebay or google t for fix andddd parts cosr

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

remote wire hooked up also?

first take the amp out. smell the amp youll smell a fried or not then test the sub even on home stereo i doubt its blown these set up are 250w max. i bet then you will realize that it is tmhe servo technology easy fix is to get a small external amp then you wont have another problem

Hello austin_optiz,

If you have had 2 units with the same problem, I'd say that yes, there is a problem with the "sound sensing" function of the auto turn-on circuit. Either it's not getting the correct level or one side is being shorted or grounded. Some vehicle speakers may have one side at ground potential which could cause the auto turn-on to fail.

If the Basslink operates normally otherwise, I'd recommend that you just connect a 12V + fused and switched source to the remote terminal. Wire it through a conveniently mounted toggle switch and turn it on and off manually.

Hope this helps.