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Boston asw 250 subwoofer has no sound green light is on

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Posted on Jan 02, 2017

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SOURCE: no sound in sound bar and subwoofer

for Jameslicon re wireless sub going on and off repeatedly. Both the soundbar and the sub have 4 wireless channels - try a different pairing of those channels. There is a sliding switch on the back of both units. I set each of mine to channel 4 and the problem went away. There is also a signal level switch with 3 levels on the back of the soundbar. If the wireless channel idea does not work, try a different setting on the level switch. Good luck.

Posted on Nov 12, 2010

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My Boston Acoustics ASW 650 just turned off yesterday and wont turn back on. What could be wrong?


Check for the wires connections on all the terminals.
Else it is a minor problem due to power fluctuations.
Take it to a nearby technician.

Sep 22, 2014 | Boston Acoustics ASW650 10in 650 Watt A...

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Hi there hope someone can advise me! Bought a used boston soundbar tvee 20 and discovered the subwoofer stays on for a short while then goes off displaying a solid red light! I have tried everything thing...


I have sub woofer that works the same way. It is always on "idle" but when it detects an input it switches over to fully powered status and green light goes on. When I turn off receiver or whatever, it takes a tad for the unit to power down and go back into "idle" mode with a red light. .

Nov 22, 2013 | Audio Players & Recorders

1 Answer

Tv light flashing cant turn tv on


Sounds like your TV's projector lamp has burned out, ususally the TV provides you a diagnostic by flashing the power or stand by button in red or green. So look up your TV online and search for the projector lamp.

Oct 10, 2013 | Boston Acoustics TVee Model Two TV...

1 Answer

Acoustic reaserch subwoofer dont have any sound


If this is a powered sub then it's most likely the internal amp inside it that has failed. It's more than likely the part that works the hardest on the board. IE the main amp semicoductor.

Dec 19, 2012 | Boston Acoustics Audio Players & Recorders

1 Answer

Red status light will not go off or change on Boston A TVee model 2 soundbar.


I am also having the same problem. It was working fine until we moved. Plugged it in at the new house and nothing but a red light. Sub is green though.

Jul 10, 2012 | Boston Acoustics TVee Model Two TV...

1 Answer

I get a red light on the back panel labeled power. No green light. I don't think the PV 600 is working but when I run the channel check through my Pioneer THX receiver I hear sound. Any thoughts?


The PV600 and PV400 have auto-on circuitry that turns the subwoofer on when a signal is presented, and turns off if no signal is detected for 15 minutes.

http://www.retrevo.com/support/Boston-Acoustics-PV600-Subwoofers-manual/id/522dj484/t/2/

Not knowing which Pioneer receiver you have I have dropped in the steps for No Sound from Subwoofer:

• Check that the subwoofer is connected properly, switched on and the volume turned up.

• If your subwoofer has a sleep function, make sure it is switched off.

• Make sure that the Subwoofer setting is YES or PLUS (see Speaker Setting on page xx).

• The crossover frequency may be set too low; try setting it higher to match the characteristics of your other speakers (see Speaker Setting on page xx)

• If there is very little low frequency information in the source material, change your speaker settings to Front: SMALL / Subwoofer: YES , or Front: LARGE / Subwoofer: PLUS (see Speaker Setting on page xx).

• Check that the LFE channel is not set to -80dB , or a very quiet setting (see Bass Peak Level

on page xx).

• Check the speaker level settings (see Channel Level on page xx).

Regarding the Large vs Small assignment of speakers, what they mean isn't so much the physical size but the ability to handle real bass. Large if Yes.

Jan 12, 2011 | Boston Acoustics PV600 Main / Stereo...

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No sound and smells like burning


There are a lot of folks who've had power supply issues with this sub. Typically, the large resistors fail, which takes out the capacitors.

If you know how to read schematics and replace parts, then these might be helpful to you:

Here are the two pages of schematics from KLH. I wrote to their techdepartment and explicitly asked for permission to share them here.

Here's the lower board, which has the power supply:
KLH ASW 10-120 subwoofer schematic - lower board


Here's the upper board:

KLH ASW 10-120 subwoofer schematic - upper board


Nov 08, 2009 | KLH ASW10-120 Subwoofer

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Can the Boston BA 7900 be converter to use with TV or DVD Player?


Yes, but so far I can only get the 2 front speakers and subwoofer to work.

You need a wire that converts a headphone-style jack (like the green one with the Boston speakers) into a red and white AV connection (typical CD/DVD, etc. connection). I've had this connector for a long time and I'm guessing it's under $15. You connect the green Boston speaker connection to the converter end (mine connects to the back end of the headphone-jack (which has a hole for the connection) and the red/white AV connectors to your TV.

I'd been trying to solve the problem too for a long time. Only problem is that I can't get all 5 speakers to work because I think the red/white connector doesn't work with all 5 speakers. I have yet to figure out how to make all 5 work, but the system gives great sound anyway. You will have something like a 5.1 system with your computer speakers, the Boston speakers and subwoofers.

One more issue is that if you connect it directly to the TV, you have to manually turn the Boston speakers on and off.

Nov 06, 2009 | Boston Acoustics BA7900 Computer Speakers

1 Answer

Info


I wrote to KLH and they sent me the schematics for the upper and lower boards. I asked if I could share them, and they gave me permission to post them for use here.

Have fun!


KLH ASW 10-120 subwoofer schematic - lower board

KLH ASW 10-120 subwoofer schematic - upper board


Mar 10, 2008 | KLH ASW10-120 Subwoofer

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