Home wiring issues - diyAudio
Go Back   Home > Forums > General Interest > Everything Else

Everything Else Anything related to audio / video / electronics etc) BUT remember- we have many new forums where your thread may now fit! .... Parts, Equipment & Tools, Construction Tips, Software Tools......

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 25th November 2014, 05:13 PM   #1
diyAudio Member
 
Join Date: Nov 2014
Default Home wiring issues

Problems with my Denon AVR2313CI home theater receiver.

Here’s what happens: I bought this receiver about a year and a half ago. Randomly, it will suddenly go into protected mode and shut down. I had it plugged into a UPS. It has plenty of air space, overheating is not the issue.

My first thought was that it was a problem with the receiver. Long story, but its not the receiver – I purchased a brand new Denon receiver and tried it and got the same problem, random shut downs into protected mode.

So – I next suspected the UPS. I plugged the receiver directly into the wall – same problem. So then, I suspected the house power, because it was in a newly-remodeled room in my house (with new electrical). To see if that was it, I ran an extension cord (about 30’) from an older circuit.

Same problem. I now have the electricians at my house trying to figure it out. They are measuring the voltage – it does drop, but nothing spectacular (the UPS is rated to correct voltage drops down to 89 volts). We plugged the receiver back into the UPS, turned it on, and then pulled the UPS plug out of the wall. No problem – the UPS started beeping, but the Denon did not go into protected mode.

My question is, what could possibly be getting through the UPS to the receiver that would cause it to go into protected mode? I am completely stumped.

Any help is greatly appreciated.

Dan
--
Dan Simonson, CRNA, MHPA
2607 S. Manito Blvd.
Spokane, WA 99203

<dsimonson@mac.com>
H. (509) 747-0819
C. (509) 981-6274
  Reply With Quote
Old 25th November 2014, 05:27 PM   #2
Mooly is online now Mooly  United Kingdom
diyAudio Moderator
 
Mooly's Avatar
 
Join Date: Sep 2007
Just to be sure I have this right.

Two receivers, and both show the same problem of going into protect mode. Both exhibit the same problem when connected directly to a newly wired room/wall socket and also when connected to an old circuit.

If that is correct then then it can only be either a problem with the loading on the amp (driving it to hard, incorrect speaker impedance, a whisker wire short at a speaker/lead etc) or an oddball issue with the incoming mains.

(I'm not so sure posting all your details on an open forum is a good idea tbh)
__________________
-------------------------------------------------------
Installing and using LTspice. From beginner to advanced.
  Reply With Quote
Old 25th November 2014, 06:04 PM   #3
rayma is offline rayma  United States
diyAudio Member
 
Join Date: Apr 2011
Location: Upper midwest
Quote:
Originally Posted by Mooly View Post
Just to be sure I have this right.

Two receivers, and both show the same problem of going into protect mode. Both exhibit the same problem when connected directly to a newly wired room/wall socket and also when connected to an old circuit. If that is correct then then it can only be either a problem with the loading on the amp (driving it to hard, incorrect speaker impedance, a whisker wire short at a speaker/lead etc) or an oddball issue with the incoming mains.
Yes, what speakers are you using, how are they hooked up, and how loud do you listen? This must be the problem area.
  Reply With Quote
Old 25th November 2014, 06:24 PM   #4
diyAudio Member
 
Join Date: Nov 2014
This happened to both receivers with _nothing_ (no speakers, no tv, nothing) plugged into them. It happened with them plugged into a UPS, it happened with them plugged directly into the wall outlet, it happened when I got an extension cord and took it down to a completely separate circuit across the house.

It seems to be something wrong with my house power, which ok, I can understand - but again, what about my house power could be getting across the UPS? Can't be high, because the UPS cuts that out, can't be low, because it is rated to support voltage drops down to 89 volts. So what is the protection seeing that is causing it to shut down?
  Reply With Quote
Old 25th November 2014, 07:01 PM   #5
Mooly is online now Mooly  United Kingdom
diyAudio Moderator
 
Mooly's Avatar
 
Join Date: Sep 2007
Can you take one to another location to test it there ? It sounds a strange issue.

I'm not really familiar with UPS in practice. When the mains is present, is the output UPS derived or simply mains routed through the UPS ?
__________________
-------------------------------------------------------
Installing and using LTspice. From beginner to advanced.
  Reply With Quote
Old 25th November 2014, 09:09 PM   #6
JoeDJ is offline JoeDJ  United States
diyAudio Member
 
Join Date: Mar 2011
Location: NY State
FWIW... there is an inexpensive device to measure home current including spikes of various electrical parameters .
Kill A Watt - Wikipedia, the free encyclopedia


I have the N American model and it's handy just to have around to see how much current (watts. amps ) something is actually using ..
http://www.amazon.com/P3-P4400-Elect...ords=kill+watt
  Reply With Quote
Old 25th November 2014, 09:43 PM   #7
diyAudio Member
 
Refugee1's Avatar
 
Join Date: Jul 2012
Location: Worksop
The two most likely things I can think of is a cheap wall wart close by.
Check with a battery powered AM radio the signal from the offending wall wart will kill the tuned station when you walk into the room with it playing.
The other thing could be a mobile/cell phone located too close while it is charging. These poll the provider to check for text messages every so often and need about 6 feet clearance from audio equipment to stop them making noises come from the amplifier and in your case causing a false alarm in the power supply overload trip.
  Reply With Quote
Old 26th November 2014, 10:53 AM   #8
DF96 is offline DF96  England
diyAudio Member
 
Join Date: May 2007
Any AM stations, radars, cellphone bases etc. nearby?
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Power transformer wiring issues mcl2k6 Tubes / Valves 7 20th April 2014 10:36 AM
Home grounding issues, the saga continues: part 176, ethernet philpoole Everything Else 19 28th September 2012 08:07 PM
home made mic issues chico1st Equipment & Tools 5 17th September 2011 03:08 PM
audio in home without wiring jaya000 Solid State 0 10th May 2007 07:51 AM
Please help with design issues for home theater bluesboyjr Multi-Way 39 28th November 2004 07:07 PM


New To Site? Need Help?

All times are GMT. The time now is 08:03 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2