Question about Altec Lansing ADA425 3-piece 30-watt Speaker Set Computer Speakers

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MODEL A425 main ic number - Altec Lansing ADA425 3-piece 30-watt Speaker Set Computer Speakers

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  • Altec Lansing Master
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This chip is NOT going to be available commercially. The programming will be proprietary and owned by Altec.

Posted on Mar 30, 2014

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Posted on Jan 02, 2017

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My Emerson TV is a 2014 model number lf32em5f the TV works fine but every time I turn the TV on the volume will go to 0 and I turn it up and it will turn back down to 0 by itself any help please.


Main system control memory IC fault. This is a very small IC; have 8 solder terminals, and can be located very near to the main system control-chroma IC. Check and replace it. Be sure to replace it with the same number printed on it; in all respect. Otherwise, it won't go. http://electronicshelponline.blogspot.com/

Nov 25, 2016 | Emerson Televison & Video

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Cannot tune tv in model,nrgu16wb2 19 inch tv any suggestions barry


Main system control memory IC fault. This is a very small IC; have 8 solder terminals, and can be located very near to the main system control-chroma IC. Check and replace it. Be sure to replace it with the same number printed on it; in all respect. Otherwise, it won't go. http://electronicshelponline.blogspot.com/

Nov 16, 2016 | Televison & Video

1 Answer

Model dta800b1 auto scan up to 67% then stop


Main system control memory IC fault. This is a very small IC; have 8 solder terminals, and can be located very near to the main system control-chroma IC. Check and replace it. Be sure to replace it with the same number printed on it; in all respect. Otherwise, it won't go. http://electronicshelponline.blogspot.com/

Nov 16, 2016 | Televison & Video

1 Answer

Schematic Diagram for A425 amplifier


Did you ask Dell for help? Just don't hold your breath - they would rather you get a new one from them but U can try. If nothing, check it out on Google - might get lucky!

Aug 29, 2015 | Dell Powered Subwoofer Set A425 Computer...

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Dell a425 speakers manual


http://support.dell.com/support/topics/global.aspx/support/kcs/document?c=us&l=en&s=gen&docid=DSN_E876EF53BCA3F058E030030ABD6260B2&isLegacy=true

Jan 20, 2012 | Dell A425 Computer Speakers

1 Answer

How to open a425 subwoofer


pull off front plastic grill to access four screws on the speaker itself. Unscrew 10 screws on back to pull out the power board. The transformer is screwed to the bottom (4 screws).

Oct 01, 2011 | Dell A425 Computer Speakers

3 Answers

Need wiring and 9pin connector diagram


Dell (Altec Lansing) A425 Subwoofer Pinouts

This is a standard female DB-9 serial port.
Here are the pinouts.

Pin 1 = Left Speaker Out +

Pin 2 = Left Speaker Out - (Common Ground)

Pin 3 = Left Line In +

Pin 4 = Right Line In +

Pin 5 = Left/Right line In - (Common Ground)

Pin 6 = Right Speaker Out +

Pin 7 = Right Speaker Out - (Common Ground)

Pin 8 = Power A

Pin 9 = Power B

Jumper (short) Power A to B to turn on.
If you want a volume control you need to put one on the inputs. You will buy buy a stereo volume control or potentiometer.
Here is some info on how to do this.
http://g4tv.com/screensavers/features/43665/Pump-Up-The-Volume.html

Cheers!

Mar 27, 2008 | Altec Lansing ADA425 3-piece 30-watt...

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