Replacing blown TA2020 - diyAudio
Go Back   Home > Forums > Amplifiers > Chip Amps

Chip Amps Amplifiers based on integrated circuits

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 30th October 2012, 02:39 PM   #1
diyAudio Member
 
Join Date: Oct 2012
Default Replacing blown TA2020

Hi guys! I'm new to this thing so my apologies if i post in tthe wrong bit.

My situation is this. Stupidly pluged in my laptop power supply to my muse m20 ta2020 the other day. 19V blew up the chip.
I can buy a replacement but my question is will anything else be damaged on the circuit or is the chip failing the sign of component faliure.
Looking at the board everthing else looks fine.
  Reply With Quote
Old 30th October 2012, 02:50 PM   #2
diyAudio Member
 
Join Date: Feb 2011
electrolit capacitors.
  Reply With Quote
Old 30th October 2012, 02:51 PM   #3
Mooly is online now Mooly  United Kingdom
diyAudio Moderator
 
Mooly's Avatar
 
Join Date: Sep 2007
Probably just the chip

If there are other semiconductors on the PCB (IC's) that have also had there maximum ratings exceeded then it's possible these to could be faulty.

I'm not familiar with the amp so would ask how long the 19 volts was applied for. I'm thinking of any 16 volt rated electroylitics although in practice these would survive 19 volts for at least a few 10's of seconds with no damage and perhaps many minutes or even longer.

Yes a very good chance its "just the chip"
__________________
-------------------------------------------------------
A simulation free zone. Design it, build it, test it.
  Reply With Quote
Old 30th October 2012, 02:55 PM   #4
diyAudio Member
 
Join Date: Oct 2012
They have a 25v rating plus the tops havent bulged?
  Reply With Quote
Old 30th October 2012, 03:29 PM   #5
diyAudio Member
 
Join Date: Oct 2012
Forgive me i thought i had already sent this. The duration was short and there is no visable signs of damage to any other components.
The capacitors are rated at 25v and theres no sign of bulging
I have a high school education in electronics so i know a bit but high school was over 15 years ago lol.

I've attached a picture if that helps.100_0130.JPG
  Reply With Quote
Old 30th October 2012, 06:33 PM   #6
Mooly is online now Mooly  United Kingdom
diyAudio Moderator
 
Mooly's Avatar
 
Join Date: Sep 2007
Just change the chip

Its two choices, it will either work or it won't... if it doesn't we look further into it.
__________________
-------------------------------------------------------
A simulation free zone. Design it, build it, test it.
  Reply With Quote
Old 3rd November 2012, 04:00 PM   #7
diyAudio Member
 
Join Date: Oct 2012
Ok so I've replaced the Ta2020 chip. How can I safely test it without blowing anything up (potentially)?
My concern is solder contacts. Ive done a fairly neat job of removing and replacing but lets say theres a broken connection somewhere will the chip just not work?
Or will sparks fly?
  Reply With Quote
Old 3rd November 2012, 06:36 PM   #8
Mooly is online now Mooly  United Kingdom
diyAudio Moderator
 
Mooly's Avatar
 
Join Date: Sep 2007
You need to have confidence in your work

Continuity you can check with a meter as you can for shorts between adjacent pins.

If your happy power it up.
__________________
-------------------------------------------------------
A simulation free zone. Design it, build it, test it.
  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
Replacing My Memphis Audio ST-1000D blown output transistors. HELP!!! ALLMemphisCarAudio Class D 13 27th September 2012 02:58 AM
Way to improve my Ta2020 proid Class D 0 3rd March 2012 04:28 AM
difference between ta2020 and ta2020-20 amiti Class D 12 16th January 2012 08:04 PM
TA2020 in car kkyak Chip Amps 3 3rd September 2011 10:57 PM
Ta2020 Bengali Class D 0 29th September 2007 05:28 AM


New To Site? Need Help?

All times are GMT. The time now is 07:20 PM.


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