Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Solid State Talk all about solid state amplification.

hum in harmon kardon pm665
hum in harmon kardon pm665
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 31st May 2007, 07:02 PM   #1
slhoward is offline slhoward  United States
diyAudio Member
 
Join Date: Mar 2007
Cool hum in harmon kardon pm665

When I engage the Bass Contour or loudness contour switch the unit hums in both channels, even with the volume all the way down.

When the Loudness is off unit does not hum, even at full volume. This amp has special Harmon Kardon Phase Correction Loudness.

Is there an area on this high power integrated amp I need to look. Perhaps the part of the power supply that the loudness circuit gets its juice from?

  Reply With Quote

Reply


hum in harmon kardon pm665Hide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Harmon Kardon argonrepublic Solid State 2 23rd June 2009 08:30 AM
harmon kardon T-40 jaudio Analogue Source 0 24th October 2007 12:37 PM
Schematic request: Harman Kardon PM665 sangram Solid State 13 4th April 2006 02:13 PM
Harmon Kardon T40 jaudio Analogue Source 0 7th May 2005 01:04 PM
Harmon Kardon HK2500 bhg41088 Parts 0 27th May 2004 07:23 PM


New To Site? Need Help?

All times are GMT. The time now is 09:25 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio
Wiki