Lepai TA2020 Clicking Sound - diyAudio
Go Back   Home > Forums > Amplifiers > Class D

Class D Switching Power Amplifiers and Power D/A conversion

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 12th February 2012, 04:37 AM   #1
diyAudio Member
 
Join Date: Feb 2012
Default Lepai TA2020 Clicking Sound

Sorry if this has been answered before, I did a search but couldn't find an answer.

My new Lepai TA2020+ just arrived...

eBay - The UK's Online Marketplace

Pretty good deal I thought at £12.99 delivered with PSU.

Paired up with a set of £15 Acoustic Solutions book shelf speakers, a good value system for £28 I thought.

And indeed the sound is pretty amazing for the money, but as soon as I switched it on there was an annoying continuous rapid clicking sound coming from it, especially the right channel. It seems to attenuate with loud volume music, but maybe the music is drowning it out?

Any ideas? Is this a common fault that I can fix by resoldering or changing a relay or capacitor or something?

Cheers.

Last edited by papayoyo; 12th February 2012 at 10:53 AM. Reason: blah
  Reply With Quote
Old 13th February 2012, 11:03 AM   #2
Franfj is offline Franfj  Spain
diyAudio Member
 
Join Date: Dec 2011
Get a good quality RCA cable, the one provided seems crappy, I have one like that and changing the RCA solved the problem.

But first try the amp without any input cable plugged, it shouldn't make any noise (or just a little high freq noise), if it shows the same sound probably is something wrong with the amplifier…
  Reply With Quote
Old 13th February 2012, 11:39 AM   #3
diyAudio Member
 
Join Date: Feb 2012
Thanks for the reply.

The clicking sound happens even with no lead plugged in.

Guess I'll have to open it up and have a look for dubious soldering.

Just thought this might me an issue that's raised it's head before.
  Reply With Quote
Old 18th February 2012, 11:55 PM   #4
diyAudio Member
 
nigelwright7557's Avatar
 
Join Date: Apr 2008
Location: Carlisle, England
Sounds like the class d chip is going into protect.
Could be blown, I would also check the output mosfets for shorts.
__________________
PCBCAD50 software. http://www.murtonpikesystems.co.uk
  Reply With Quote
Old 19th February 2012, 01:49 AM   #5
diyAudio Member
 
Join Date: Feb 2012
The amp still works pretty well and the sound is good. It's just this constant background clicking. So I doubt anything is completely blown. Will check the soldering for shorts. Could it be the power supply?
  Reply With Quote
Old 14th March 2012, 01:50 AM   #6
jjne is offline jjne  United Kingdom
diyAudio Member
 
Join Date: Mar 2012
Weird. You and I could almost be the same person. Both in the UK, both bought lepais from eBay and paired with acoustic solutions speakers and both have seemingly the same feint, low-frequency click/buzz from the right channel :s

I am suspecting the PSU that came with the unit just now, possibly too high ripple voltage as the supply is causing a mains hum in another small, cheap amp bought at the same time. I'll post back if I work anything out
  Reply With Quote
Old 14th March 2012, 07:31 PM   #7
jjne is offline jjne  United Kingdom
diyAudio Member
 
Join Date: Mar 2012
OK, I can confirm that the problem you're experiencing papayoyo is the power supply included with the amp you bought

I bought the same amp from the same ebay seller, and have just tried the amp with an alternate power supply and, guess what, no clicking

So nothing wrong with your unit I'd wager.
  Reply With Quote
Old 27th March 2012, 03:03 PM   #8
orix102 is offline orix102  Malaysia
diyAudio Member
 
Join Date: Feb 2012
Default Sugden AU41C MM and AU41P Pre Power

Hi all

Not sure if this is right thread. Recently I encountered problem with my
Sugden AU41C MM and AU41P pre power amp.

I was trying to biwire my Quad 11L speaker. On start up, there is a ticking sound coming from the power amp with no output coming out from the right speaker. Already swapped it L/R..no problem with speaker I guess because there was sound coming out if using L channel connection.. Ticking sounds continue thereafter...


sounds like ..tick..tick..<pause>..tick..tick..<pause>

What could be the problem? Thanks...
  Reply With Quote
Old 27th March 2012, 05:38 PM   #9
diyAudio Member
 
Join Date: Jul 2011
It's really 2020A+ version ? Because according to wiki, the 2020A+ should have the bypass switch button and the photos of the seller does not appear.

Amplifier:Lepai T Amp - diyAudio

Last edited by trunkline; 27th March 2012 at 05:45 PM.
  Reply With Quote
Old 28th March 2012, 09:52 AM   #10
jjne is offline jjne  United Kingdom
diyAudio Member
 
Join Date: Mar 2012
No -- these are 2020B with 2020A+ written on the top.
  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
lepai ta2020(b) no sound when reching high volume moshemft Class D 2 2nd October 2011 08:54 PM
No sound from Lepai TA2020, no current draw SecretChimp Class D 2 14th September 2011 08:02 PM
No sound from Lepai / TA2020 ggaahh Class D 2 12th June 2011 02:16 PM
Lepai TA2020 westsounds Class D 5 3rd January 2010 08:03 PM


New To Site? Need Help?

All times are GMT. The time now is 09:27 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