Forums | Home Repair | Home Improvement | Painting | Interior Decorating | Remodeling | Landscaping


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 09-29-2010, 01:51 PM   #1
Newbie
 
Join Date: Sep 2010
Posts: 1
Share |
Default

Electrical-Sound on speakers on light switch


Hello- New Poster here
I have just moved into a new place. Well it's more like moving into an old place as the building is very old. I noticed that when I switch the lights off, my speakers go 'boom'. Not enough to frighten me but concern that one day I may have a power serge and knock some equipment out. What causes this. I also noticed that on my new full hi def screen, I have some hum bars and I know that comes from dirty power.

Should I be seriously concern about the 'boom' factor? What's the cure?
What is the cheapest way to stop the hum bars- As an AVtech, I have previously used a hum reducing pce of equipment but i was never convinced.

Anyway, I appreciate anyone's advise.
many thanks

Rob

AV Tech is offline   Reply With Quote
Old 09-29-2010, 03:44 PM   #2
Member
 
Join Date: Aug 2010
Posts: 92
Default

Electrical-Sound on speakers on light switch


sounds like it may be 2 problems. the hum i've found to usually be a noisy ground. the boom i don't know, only speculate. being an avtech, maybe you can get your hands on an o-scope and look over the incoming power/ground system. have you tried other receptacles for the boom problem?

TimPa is offline   Reply With Quote
Old 09-29-2010, 03:48 PM   #3
Member
 
Join Date: Nov 2007
Location: Nashua, NH, USA
Posts: 6,781
Default

Electrical-Sound on speakers on light switch


Your equipment might not be adequately grounded. This can happen if the ground wires are not tightly connected in each outlet box. Just twising them together is no longer considered good enough.

You can run an external ground wire from one piece of equipment to another. Fasten it using a screw that goes through to the chassis or fasten it to the shell of one of the input jacks. Connect the far end of the external ground wire to a known good ground.
__________________
The average homeowner who lost his house in the Oklahoma tornadoes should move for good and not rebuild. Too much complexity watchdogging the contractor. Too much a chance to be defrauded.
AllanJ is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Ceiling Fan with Light kit - Light not working aadams Electrical 12 11-03-2010 06:32 PM
Remove Switch from controlling outlet/wire wall light to wall switch salesbyashley Electrical 2 08-26-2010 02:07 PM
Light activated wire in switch do they exist? zootjeff Electrical 10 07-03-2010 01:30 PM
Bedrooms have no ceiling light, light switch controls one electrical outlet? notenoughtime Electrical 16 05-25-2009 12:09 AM
What makes a quiet window? Badfish740 Building & Construction 8 09-30-2007 10:22 AM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.