Altec Lansing Popular Questions, Answers, Tips & Manuals

Most probably output capacitor need replacement.

The problem is usually getting into them. https://www.google.com/search?q=Altec+Lansing+ATP3+speaker+volume+control+repair different model

you do not. trash it

answers ask maker for it or google long and hard.

1121? Altec Lansing used to be good speakers, but not any more. https://www.google.com/search?q=Altec+Lansing+221+7+pin+subwoofer+connector+pinout ..

Question edited for clarity. Here https://www.remotes.com/al-p/al%20rtvs4221.htm More here https://www.google.com/search?q=altec+lansing+vs4221+remote+control+replacement ..

The "pluc pluc pluc" noise you're hearing from your Altec Lansing MX6021 Expressionist ULTRA 2.1 speakers could be a sign of a few different issues. Here are a few things you can try:

1. Check the cables: Make sure all cables are connected properly and there are no loose connections. Try using a different cable to see if that solves the problem.
2. Check the power supply: Ensure that the power supply is plugged in and working properly. Try using a different power outlet or power supply to see if that solves the problem.
3. Check the volume: Make sure that the volume on your device is turned up and the speakers are not on mute.
4. Try a different device: Connect the speakers to a different device to see if the issue is with your laptop or the speakers.
5. Check for software updates: Visit the Altec Lansing website to see if there are any software updates or firmware updates available for your speakers.

If none of these solutions work, it may be time to consider contacting Altec Lansing customer support or a professional audio technician for further assistance.

Question moved from Cars and Trucks. There seems odd advice in here, but might make sense to you? https://www.ehow.co.uk/how_7777826_apart-audix-d6.html ACS33 manual https://www.manualslib.com/manual/365802/Altec-Lansing-Acs33.html No ACS31 except images https://www.google.com/search?q=ALTEC+LANSING+ACS31+manual ..

It's possible that there is a problem with the speaker itself that is causing it to produce a buzzing sound. Some common issues that can cause this type of problem include:

1. A loose or damaged speaker cone, which can cause the speaker to vibrate excessively and produce a buzzing sound.
2. A problem with the amplifier or other electronic components of the speaker system, which can cause the speaker to produce distorted or irregular sound.
3. Physical damage to the speaker, such as a crack in the enclosure or a dent in the cone.

In order to fix the problem, you may need to have the speaker repaired by a professional or purchase a new speaker. It is also possible that the problem is not with the speaker itself, but with another component of your audio setup (such as the amplifier or the source device). In this case, you may need to troubleshoot and fix the problem with that component.

You have an internal fault. They are not good speakers and impossible to get inside. It will be the internal power supply Throw them away.

Subwoofer started smoking after about 30 minutes of use?

https://www.reddit.com > techsupport > comments > su... Jun 11, 2020 - Walked into the room, and it was smoking a lot and o could smell burning plastic. ... It's a Dell Altec Lansing ADA995 if it matters. https://www.google.com/search?q=ADA995 ..

https://alteclansingsupport.com/wp-content/uploads/2021/09/Upadated-IMW580_-scaled.jpg

3 causes. generic. then real. 60Hz hum/.

1. the PSU inside the SUB is bad, as in bad CAP's inside.
2. input cables to it bad, shields broken (coax cables)
3. bad source signals from what ever is connect to the sub.

in this case (no pun) the main case is the SUB and the PSU is inside the sub so sub bad. or test it with no L/R speakers yet , it still hums or is dead well the main unit is bad and needs service. OR the main has cable from PC to MAIN SUB case. IF this cable is bad, is first check.but that would make L or R fail too. a bad shield will not only effect the sub speaker, (hum) the PC end is only 3 conductors L and R and shield. some are sold double shielded, and are prime to own.. try a new 3.5mm phone patch cable, just in case his fixes it cheap. or the 2 cable ends to PC , phone plugs are lose or dipped in spilled drinks gunk. or PC is bad , ( try other sources , PC, phones, or mp3 /dvd players.) the PC bad would effect R or L too. IMO

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these should help or contact them direct https://electronics.stackexchange.com/questions/100624/short-circuit-or-disconnect-to-bypass-a-compressor http://www.kk4ice.com/?p=570 https://www.google.com/search?q=Altec+lansing+atp3+control+board+schematics ..

There seems to be a lot of issues with it! The used to be a great speaker company, but that all stopped about 10 years ago. https://www.google.com/search?q=altec+lansing+mx6021+power+supply

Time to throw them away. They used to be a good company, but they aren't any longer. I have had two pairs go bad. My replacement hissed when the power was off. Altec Lansing were not interested that they were live when switched off. All switching off did was was cut the source input. I gave them away and bought Bowers and Wilkins MM1. By far the best speakers I have ever owned.

Bowers & Wilkins MM-1

https://www.bowerswilkins.com > default > files

PDF Digital Signal Processing There's an art to producing a big sound from small speakers. And we've mastered it, thanks to a clever ..

Very unlikely. They are not a good speaker company any longer. They have inbuilt power supply and amplifier board.

If your sub is in a sealed enclosure, access is gained by removing the speaker. If there is an internal circuit board, it may be buried in great wads of damping material.

Numbers do not have to match as long as the Ohms are equal. Usually 8 Ohms per speaker is normal. The low impedance allows you to attach the wires without getting a shock. The most that happens is a tone of sorts. Just align + to + and - to -