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

Class D Switching Power Amplifiers and Power D/A conversion

Sonic T-amp, no sound on left channel on low volume
Sonic T-amp, no sound on left channel on low volume
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 26th September 2007, 03:00 PM   #1
willmans is offline willmans  Sweden
diyAudio Member
 
Join Date: Mar 2007
Default Sonic T-amp, no sound on left channel on low volume

As the topic says, if I have the volume set to a low level (like listening when others are sleeping) theres no sound from the left channel.
If I turn the volume up to normal levels the left channel comes on. Has anyone else seen this problem?
I don't remember having this problem with my old one. I'm running it from a 12v sla battery and I tried different inputs and speakers but the problem persists. Any ideas?
  Reply With Quote
Old 26th September 2007, 03:14 PM   #2
BWRX is offline BWRX  United States
diyAudio Moderator Emeritus
 
BWRX's Avatar
 
Join Date: Jan 2005
Location: Pennsylvania
Sounds like the volume potentiometer is bad.
__________________
Brian
  Reply With Quote
Old 26th September 2007, 05:00 PM   #3
willmans is offline willmans  Sweden
diyAudio Member
 
Join Date: Mar 2007
Yeah, I swapped the one from the old broken one and it was somewhat better but still not balanced. Guess I'll have to mod it with a better quality one.
  Reply With Quote
Old 26th September 2007, 05:27 PM   #4
BWRX is offline BWRX  United States
diyAudio Moderator Emeritus
 
BWRX's Avatar
 
Join Date: Jan 2005
Location: Pennsylvania
If you just swapped the pot and it's still bad then that points to bad wiring. Those wires going from the board to the pot are real cheap and can break internally.
__________________
Brian
  Reply With Quote
Old 7th October 2007, 06:33 PM   #5
nukegoat is offline nukegoat  United States
diyAudio Member
 
Join Date: Sep 2007
I had the exact same problem (with the left channel being bad) but I had planned to replace the pot anyway - the problem went away after doing so. Measurements of the pot with my DMM showed a fairly substantial imbalance between the two channels, so go figure. You're not alone with this oddity though. If you don't plan to replace the pot you could always send it back and get a replacement unit.
  Reply With Quote

Reply


Sonic T-amp, no sound on left channel on low volumeHide 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
NAD 310 buzz in left channel Rodmunch Solid State 2 22nd March 2009 12:58 AM
When Volume up - left channel sound prob ? Krokotam_ Solid State 7 21st October 2008 03:55 AM
K-502 Left Channel is out udailey Tubes / Valves 3 21st March 2008 06:12 PM
NAD 3130 left channel dropping in and out as I turn the volume control was8v Solid State 2 1st July 2007 07:16 PM
Tube Amp - Crackling Sound on Left Channel Noak Tubes / Valves 8 28th December 2005 02:46 AM


New To Site? Need Help?

All times are GMT. The time now is 08:43 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