Help with Helder TK2050 board - diyAudio
Go Back   Home > Forums > Amplifiers > Class D
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

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
Thread Tools Search this Thread
Old 4th January 2011, 01:45 AM   #1
diyAudio Member
Join Date: Aug 2006
Default Help with Helder TK2050 board

I recently received 4 TK2050 boards from Arjen Helder. First impressions were very positive. After only about 10 hours of use, one has no output. The 7805 regulator gets very hot immediately. I will pick up another regulator tomorrow to see if it helps. Does anyone have experience with a similar issue. Is the amp history?

  Reply With Quote
Old 4th January 2011, 03:13 PM   #2
julcat is offline julcat  Mexico
diyAudio Member
Join Date: Sep 2009
I have 4 TK2050 boards from arjen and they all work without any problems, in general Arjen's products have good reputation of quality and sound.
  Reply With Quote
Old 8th January 2011, 03:04 AM   #3
Homl is offline Homl  Canada
diyAudio Member
Join Date: Nov 2003
Have you double check for DC offset at the output?

One of my boards had a significant amount of DC offset. I just turn the little blue pot to set it back close to zero.
  Reply With Quote
Old 9th January 2011, 04:27 AM   #4
diyAudio Member
Join Date: May 2008
Send a message via MSN to ArjenShenzhen
Hi there, Mixed mechanic,

Have you contacted me already for this problem ?

Ill help you out of course. i've noticed that some of the board of the previous lots have some fall-out issues, so of course your problems fall within the usual warranty.


Arjen Helder
Always check the power supply... and my spelling...
  Reply With Quote


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
New TK2050 board hifimediy Class D 2266 18th December 2016 05:06 PM
helder mk3 ta2024 pharoahra Class D 32 26th May 2012 12:12 AM
Sure electronics 4*100 watt @ 4ohm, TK2050 D-class Audio Amplifier Board aquapiranha Class D 3 30th May 2011 11:06 PM
Where is Arjen Helder steveww Class D 6 5th October 2010 06:32 PM
Best sounding board ~60W/8ohm TK2050/TAS5613/ ? Galgo Class D 5 3rd June 2010 07:34 AM

New To Site? Need Help?

All times are GMT. The time now is 06:52 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2