Question about Sony SRS-D21 Computer Speakers

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4 pin plug broken

Sub woofer connector broken to table speakers (for A computor)
4 pin connector need wiring diagram to resolder wires earth,red,grey, grreen blue

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5 Suggested Answers

  • 1 Answer

SOURCE: 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!

Posted on Mar 24, 2009

likwidstate
  • 17 Answers

SOURCE: Logitech x-230 speaker system

Ironically enough, I went on here because I have the satellites but no subwoofer! LOL, what are the odds. Anyways, if you happen to receive this information, can you please email me at ben.petrofsky@live.com?

Like I said, I'm searching for the same exact information for a similar problem and this would REALLY help as I can't power the speakers without this.

Posted on Sep 02, 2009

  • 17 Answers

SOURCE: No sound coming out of my sub woofer, power is ok

That blue wire needs to be connected to both the receiver and the amp. It is what tells the amp to turn on when you turn the receiver on.

Posted on Mar 14, 2010

  • 1768 Answers

SOURCE: X-220 cable is slightly damaged

nothing is wrong with the woofer the connect is broken at the strain relief and the cable needs to be replaced.
You can replace the connector if you know the pinouts. You will need the connector and the schematic.
you may be able to find the pin outs configuration here.
http://pinouts.ru/
As for the connector this may take a search online.

Posted on Aug 07, 2010

bronk50
  • 27725 Answers

SOURCE: The speaker plug at the

here are 2 links to some photos be very careful if you are soldering any power connectors any join of solder creates a link to power so if you get it wrong it might short circuit remember you must have both ends to be soldered clean usually the solder will have the flux built in although you might buy some soldering flux before you start you must warm up the ends with a soldering iron and tin them this will enable the solder to flow on and join correctly
http://mightyohm.com/files/soldercomic/FullSolderComic_images_20110409.zip
http://mightyohm.com/files/soldercomic/FullSolderComic.zip
hope this helps


Posted on Apr 22, 2011

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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!

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