Question about Boston Acoustics SoundWare XS 5.1 Speaker System

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Zd 3 diode value on boston acoustic soundware xs 5.1 subwoofer

Zd #3 zener diode is shorted, can not read the value.

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DragonSlayer2

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Replaced the ZD3 on the Boston Acoustics Soundware xs 5.1 subwoofer with a 18 Volt-1 Watt Zener part number 1n4746a. and works like brand new.

Posted on Sep 12, 2015

  • Christobald
    Christobald May 23, 2020

    I will buy one zener diode or probably 100 (you know why :-D ). And I will test soon.

    Thank very very much for sharing !

    How did you manage to get/guess the zener voltage ?

  • Drew Allan
    Drew Allan Jul 25, 2020

    RS Stock No. 818-4951 its actually a Taitron Part Number TZXJ18B with Marking Code Z18Bhttp://www.taitroncomponents.com/catalog...

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leonardo

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Hello
Did you find the value of ZD3.
I need it too.
I have the same problem, and I take out the ZD3 and the subwoofer works. But I'm not sure that is correct. I think it may be the circuit stand by.

Posted on Jul 16, 2014

  • Giuseppe Hormigos
    Giuseppe Hormigos Oct 19, 2014

    Its a Zener diode Z18B

  • Hector C Hernandez Oct 20, 2018

    18 Volt-1 Watt Zener part number 1n4746a

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Anonymous

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SOURCE: how do i connect my boston acoustics pv800

You need to use the LINE LEVEL connection on the pv800 (usually a rca type connector cable) and run this cable into the back of the HK 520 Subwoofer PRE-OUT connector, be sure the HK Receiver menu speaker set-up option is set to SUBWOOFER "YES"

Posted on Jun 12, 2010

prijo_haman

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SOURCE: boston soundware 5.1 subwoofer is clicking on and

I read on another forum is to turn your stereo level for the sub all the way to max then dial back the level on the sub to desired level.

Posted on Mar 03, 2012

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1 Answer

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Most often this unit goes dead because of zener diode ZD3 shorting. It is a 18v zener. replace this and you should be back in business.

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Ok..the procedure is easy.
1) unplug the unit and bring it to a well lit work area.
2) remove the panel from the back and locate the board that is held to the panel by 4 screws and has the ZD3 diode. The pic below shows the diode at the end of my test lead. Note the direction of this part and reinstall the new one in the same direction. Its a simple de-solder and re-solder project. I elevated the new diode about 1/8 " from the board with a small strip of copper. This acted as a heat sink during the soldering and elevated the part above the board to help it dissipate heat later when in use.
3) re-install the board and plug in all the connections.
4) this worked for me and I'm enjoying my sound system again!..good luck0482b949-8492-43a6-91df-0fb2f0e6888b.jpg

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http://www.avforums.com/forums/speakers/1205745-boston-acoustics-soundware-xs-5-1-review-6.html

Bad batch maybe? Lets get your input and maybe we'll get to the bottom of it.

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