Go Back   Home > Forums > > >

Holton Precision Audio High quality, high performance amplifier modules and accessories

Reply
 
Thread Tools
Old 9th December 2020, 10:36 AM   #1
sagaryadav is offline sagaryadav
diyAudio Member
 
Join Date: Dec 2020
Default how can i fix this

i am a hobbyist and does not have deep knowledge, so any help would be gratefull.
my swans m59w blew up because of delivery of excessive voltage and on inspection i can see that there is fault in amplifier chip. the amplifier ic tda7294 blew up and i dont know what to do now. i dont have a circuit diagram so i dont know about all the components that need to be replaced and i cant find a replacement of full board either. what do u guys suggest
Attached Images
File Type: jpg IMG_20201208_203422.jpg (422.6 KB, 58 views)
File Type: jpg IMG_20201208_201040.jpg (423.7 KB, 57 views)
  Reply With Quote
Old 9th December 2020, 11:50 AM   #2
avtech23 is offline avtech23  Australia
Certifiably addicted to DIY.
diyAudio Member
 
avtech23's Avatar
 
Join Date: Dec 2017
Location: South Oz
how can i fix this
Looks to be catastrophic.

It is possible to replace all the affected parts but the PCB looks to be damaged. When the PCB gets carbonised, it becomes conductive which is not good.

I'm not familiar with the product this board came out of but there are TDA7294 boards on places like Amazon / Ali but beware the chips aren't always legit.

Is it a Holton Precision Audio product you had? I don't see it in their product list and wonder why you post in their forum space?
__________________
The ever growing project list.. :NAP140, NAD 3020i & 3225PE, JLH1969, TDA2050, Fender 5F2A Princeton, NE5532 HPA, SHPA, B1 Korg, T2, LM4780. : VSQC Phunk Style, Retro 50W, Filmosound 601, AX14. :Young NAP250, TGM10, TDA7265 (Last in line)..maybe
  Reply With Quote
Old 9th December 2020, 12:17 PM   #3
jean-paul is offline jean-paul  Netherlands
diyAudio Moderator Emeritus
 
jean-paul's Avatar
 
Join Date: Sep 2002
Location: Germany
Quote:
Originally Posted by sagaryadav View Post
on inspection i can see that there is fault in amplifier chip.
That is not hard to see This is a goner, sorry.
__________________
It's only audio. Member of the non modular PCB design committee.
  Reply With Quote
Old 9th December 2020, 01:26 PM   #4
JMFahey is offline JMFahey  Argentina
diyAudio Member
 
JMFahey's Avatar
 
Join Date: Mar 2009
Location: Buenos Aires - Argentina
What is a: "swans m59w" anyway?

Google shows nothing.

That board looks destroyed beyond repair anyway.

Besides the exploding chipamp,the other one on its left is very probably dameged or dead, since both got same high voltage.

Did you plug 110V stuff into 220V mains?
__________________
Design/make/service musical stuff in Buenos Aires, Argentina, since 1969.
  Reply to this post

Reply


how can i fix thisHide this!Advertise here!
Thread Tools

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
Blown orion Amp, Can I fix it????? Satern Car Audio 25 22nd February 2010 10:55 PM
How can I fix my cd player Sony CDP-M26? Katapum Digital Source 15 25th July 2008 03:32 PM
Perpetuum-Ebner PE66: To fix or not to fix... Grendel the Cat Everything Else 0 6th April 2007 05:37 AM
Blew my speakers with a guitar - can I fix them. mga Multi-Way 26 6th August 2006 09:29 AM
My amp produces very little sound, how can I fix it? I love Op Ivy Solid State 4 24th March 2004 03:22 PM


New To Site? Need Help?

All times are GMT. The time now is 10:19 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Copyright ©1999-2021 diyAudio
Wiki