Question about Altec Lansing ACS 54 Computer Speakers

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Altec Lansing ACS 54 Transistor Question

Hi, I have a set of the ACS 54 speakers, and one of the small transistors has perished. I am fine with replacing it, but I don't know the number of the part. When it died, part of the surface melted so I can't read the numbers on it. If there is a common cause of this part failing can you please let me know, otherwise just the number of it will help me get going. Or, even just a schematic diagram would be fine as well. Please refer to attached picture if needed. Thanks for any help, Rick

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  • Anonymous Aug 12, 2008

    Ref. the U5



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Transistor LE120 very low drop voltage regulator,just check in

Posted on Sep 07, 2009

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Hi , i stay in india. the other day i bought this old woopher from altec lansing. it is acs54. it is without the satellite speakers. how can i help u. my email id is

Posted on Aug 24, 2008


Hi, I stay in india. there is a market out here near my place where u get old stuff. the other day a guy was selling this woohper . i bought it. it does not have the satellite speakers. how can i help u out

Posted on Aug 24, 2008

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

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Problem Sound Driver Altec lansing ACS 295

Hi names Rui try downloading the sound driver here you will find all the latest sound drivers for altec lansing in this site if it still doesn't work try calling costomer service so they can provide you with better solutions..
try to dl a driver 1st if all else fail that your last option.....

Jul 17, 2011 | Altec Lansing ACS 295 Computer Speakers

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Manual for Altec Lansing ACS 251 Computer Speakers

Try this link.

Jul 16, 2011 | Altec Lansing ACS 251 Computer Speakers

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No sound coming from ACS 48 Altec Lansing speakers

Hi janros123 - I don't know if this will help - I have a subwoofer ACS48 that needs satellite speakers (they are blown). Want to buy my subwoofer or sell your satellites? I will buy your broken subwoofer, too...thanks, and good luck! Greg illdooyoo at gmail dot com

May 16, 2009 | Audio Players & Recorders

1 Answer


maby i can help u im a instruction manel what do u nee d to know

Jan 05, 2008 | Altec Lansing ACS 56 Computer Speakers

2 Answers

Vista messed up speakers

hi Avsandrick
Happy Holidays!
Doing a driver search don't help much, so I recommend 2 things here, wait until MS, make a Service Pack Cd, for Vista, or go to the Altec Lansing Page and see if for your particular model, there are drivers for vista.
other than that, a generic sound driver, could fix the problem.

Dec 29, 2007 | Altec Lansing ACS 54 Computer Speakers

1 Answer

One drive for Altec Lansing Technologies Inc. 'ACS-295' dell

Hello there
What kind of help on specific device from altec you need?
be more specific

Nov 28, 2007 | Altec Lansing ACS 295 Computer Speakers

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