MKIII TA2020 Help Needed - 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 3rd August 2014, 10:36 PM   #1
diyAudio Member
 
Join Date: Mar 2014
Default MKIII TA2020 Help Needed

I have a MKIII Tripath TA2020 AMP from Arjen Helder and have not been able to contact him. I would like to swap the feedback resistors to an 82k or 100k ohm resistor for use with my iPhone, but don't know where they are on the board. A friend of mine will be doing the soldering for me, but I wanted to be able to show him exactly which resistors should be replaced. I have attached a pic of the amp. Thanks in advance for the help.
Attached Images
File Type: jpg MKIII TA2020 AMP.jpg (752.8 KB, 55 views)
  Reply With Quote
Old 4th August 2014, 01:07 AM   #2
diyAudio Member
 
Join Date: Mar 2014
I also took a shot of the back of the board. Sorry for the camera quality.
Attached Images
File Type: jpg 20140803_194836.jpg (788.4 KB, 46 views)
  Reply With Quote
Old 4th August 2014, 05:43 PM   #3
Davet is offline Davet  United States
diyAudio Member
 
Join Date: Mar 2004
Location: Reston, Virginia (surburb of Wash, DC)
Default Argen Helder

I had an email message from Arjen last month and he has relocated to another country in Southeast Asia. He is no longer is China. In his message he stated he had a depleted inventory and was debating what to do about his business.

I suggest that you try to email him regarding your question. It took Arjen a little more than a month to reply to my query. I have no idea it the delay was based on his new circumstance. However, in the past, Arjen has always been responsive.

There are other viewers of this website that may be able to answer your question.
__________________
Davet
  Reply With Quote
Old 4th August 2014, 10:05 PM   #4
diyAudio Member
 
Join Date: Mar 2014
Thanks for the info Dave. Hopefully Arjen can get back to me or someone on the forum who is a little more familiar with the TA2020 board will be able to answer my question. I did send an email to Arjen, so hopefully I will get a response.
  Reply With Quote
Old 4th August 2014, 11:11 PM   #5
diyAudio Member
 
Join Date: Mar 2014
I think I might have found the correct resistor. It looks like most people say to swap the 20k resistor in the R5 and R6 spots to an 82k or 100k. However on this amp there looks to be only one 20k resistor in the R6 spot and nothing in the R5 spot. I do see another 20k resistor in the R9 and R10 spots. I'm just not sure which resistors are the feedbacks and which are the inputs.
Attached Images
File Type: png Screenshot_2014-08-04-19-03-35.png (619.5 KB, 27 views)

Last edited by jefro6996; 4th August 2014 at 11:17 PM.
  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
Suggestions for Speakers for use with Helder TA2020 MKIII orrino Class D 0 16th August 2012 10:00 PM
Arjen Tripath TA2020's (MKII VS MKIII) johnviera Class D 3 21st August 2011 12:45 PM
Tripath ta2020 MKIII johnviera Class D 10 9th August 2011 02:28 AM
Arjen's helder TA2020 MKiii went fault :( chchyong89 Class D 13 17th September 2010 10:24 PM
Arjen TA2020 MkIII kit wiring paean Class D 7 16th September 2010 04:11 PM


New To Site? Need Help?

All times are GMT. The time now is 08:47 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2015 DragonByte Technologies Ltd.
Copyright 1999-2015 diyAudio

Content Relevant URLs by vBSEO 3.3.2