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.

Harmon Kardon HK990 Vxi Pot
Harmon Kardon HK990 Vxi Pot
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
Thread Tools Search this Thread
Old 19th October 2016, 12:25 PM   #1
Carlosraj is offline Carlosraj  United Kingdom
diyAudio Member
Join Date: Jan 2010
Default Harmon Kardon HK990 Vxi Pot


On checking this amp, the reason for no sound on the left channel was due to the Balance pot. One side was open. This is a 50KMN pot and totally not available here, so replaced with a 50KB pot. The problem is, when the Balance is in the Centre, the overall volume is lower than normal. When panned left or right, that respective channel sounds louder than when the balance is in the Centre. Is there any solution to this problem. Please advice.


  Reply With Quote
Old 19th October 2016, 06:14 PM   #2
llwhtt is offline llwhtt  United States
diyAudio Member
Join Date: Jun 2008
Location: SoCal
Looks like that pot might be 50K on each side of center. Normally when the pot is centered there is NO resistance in the signal path and when turned the signal gets attenuated thru the resistance to ground. Using a larger value normal linear pot might work. You'll want the least amount of attenuation possible.

  Reply With Quote


Harmon Kardon HK990 Vxi PotHide 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 HK990 Vxi Carlosraj Solid State 1 17th October 2016 10:58 PM
Harman Kardon PM 665 vxi coachmorin Solid State 7 25th March 2015 04:24 PM
Bias adjustment Harman Kardon HK990 jlk Solid State 2 8th December 2014 11:18 PM
Harman Kardon HK990 subwoofer outputs? pieskapov Digital Line Level 8 7th March 2012 07:38 AM
Harmon Kardon PM 645 Vxi issues veedubz1 Solid State 4 2nd February 2011 11:17 PM

New To Site? Need Help?

All times are GMT. The time now is 06:47 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Copyright ©1999-2020 diyAudio