20 Most Recent Boston Acoustics PV1000 Subwoofer Questions & Answers

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.

Here is information from the factory repair company for this product.

For repairs that are out of warranty: The Boston Acoustics PV1000 has a $130 flat fee that covers parts and labor regardless of the problems you are having with the unit. Return shipping is figured (with your zip code) at the time of return and added to that fee.

When packaging the unit please include a detailed problem description and
full contact information (name, address, phone). For this particular model you can send in just the amplifier pcb, and keep the cabinet in your possession, (to save immensely on shipping)

Upon arrival here at LAS, your name first and last will become the RA and
future communication will be referenced by that name.

We will contact you for payment of $130 +return shipping. We accept Visa and Mastercard over the phone, or check or money order via mail. Turn around time is generally 3-5 days
after receipt of the unit.
If you have any questions or uncertainties don't hesitate to call the number below or respond to this email.

The address for return is:
LeMars Audio Service
1889 24th St SW
LeMars, IA 51031
712-546-1644 opt2

Hi David,First of all, thank you for posting your question here at Fixya.May you please email me at [email protected], I will send you the copy.Again, thank you so much!Rating and feedback are highly appreciated.Mjsazon

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 ?

Mark

I don't know if you will see this or not, your post was 2 years ago. I have the same problem. My volume is stuck at 24. I have tried soft-reset........among other things. One thread says to turn volume down to 00 then press for 10 seconds. I have no control over the volume, so, yeah, thanks for that fix. I found that I could get the volume down by unplugging it,plugging it back in and sometimes the volume would pop up and I could turn it down one notch. I did it till I got to 00.............thought AHA! My problem is solved! No such luck. When I press the volume at 00 and try to hold it for 10 seconds, after 3-5 seconds it just pops back to the station frequency. I also thought that if I could get into the guts and spray the volume control with tuner-cleaner, it might help. No go.......after taking off the cover, I found a bunch of REALLY delicate looking electrical tapes and wires..........I was scared I would destroy something in an attempt to reach the volume control. I hate to trash this radio, the sound is awesome...............great design on the speaker, NASTY design on the controls. I'd be VERY interested to know if anyone, anywhere, has found a fix for this. I think maybe my next step will be hitting it with a hammer.

You may have to replace the zener with an equivalent having a heftier current rating.

donaldws1018 I was wondering if the static problem was resolved yet. I have a pair of the VR970's that don't sound so good either.

You can buy a substitute remote control in eBay or Amazon.com

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.