Question about Boston Acoustics PV500 Subwoofer

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Boston Acoustics PV600 Subwoofer

My 5-yr old unit keeps blowing fuses imediately after replacement. Amp is off so it is a power supply issue. Any ideas? Thank you

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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

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My boston hps12 ho subwoofer blows fuse. what could be wrong

Fuses blow when there is an overload. The most likely cause is a short-circuited semi-conductor IE: a transistor or IC etc. If you find one of these devices inside it with a heat sink on it, that will be the most likely cause. Transistors can be tested with an Ohm Meter and in a short circuit fault such as this, it will be like you have put the two test probes together!

Dec 06, 2015 | Boston Acoustics Speakers & Subwoofers

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Subwoofer blows fuse

Short circuited component/s at its circuit board. Check and replace it. Check for shorted component/s at the amplifier stage circuit. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience.

Dec 06, 2015 | Boston Acoustics Speakers & Subwoofers

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What are the replacement part numbers for the boston acoustics mcs130 subwoofer transistors Q10, Q10b, abd Q11?

Is the sub dead? Because this is usually caused by ZD3 being shorted....not the transistors.

Jan 03, 2014 | Boston Acoustics Speakers & Subwoofers

1 Answer

Boston acoustics pv-1000 won't power on

Just fixed my PV1000 that would not power on. Verified 185vdc on bulk capacitors. Measured 11vdc on U5 (UC3842) from pin 5 (gnd) to pin 7 (vcc). Then measured 0vdc from pin 5 (gnd) to pin 8 (ref). This should be 5vdc. This means that U5 is shut down for undervoltage. Turned out to be two open resistors. R94 100k 2w and R77 33k 2w. Never would have guessed that as there was no sign of heat discoloration. They are next to each other between U5 the UC3842 PWM IC and Q3. This prevented the proper startup voltage for U5. Replaced them and I'm off and running once again. Hope this helps someone.

Oct 27, 2013 | Boston Acoustics PV1000 Subwoofer

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 Speakers & Subwoofers

2 Answers

Zd 3 diode value on boston acoustic soundware xs 5.1 subwoofer

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.

May 27, 2012 | Boston Acoustics SoundWare XS 5.1 Speaker...

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.

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...

1 Answer

I have a Boston Acoustics PV1000 that's getting no power but the fuse appears to be OK. What else could it be? thanks

I have the same problem. La Mars covers the factory repair for these. Their number is 712-546-1644. Have you fixed your problem yet ?


Nov 26, 2010 | Boston Acoustics PV1000 Subwoofer

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