Tda7293 - 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 10th December 2004, 08:44 AM   #1
lasstss is offline lasstss  United States
diyAudio Member
 
Join Date: Dec 2004
Location: Maryland
Unhappy Tda7293

My son has a Marshall guitar amp thay keeps blowing fuses. It was determined that the small pc board that holds the TDA7293. Is the culprit. I assume the chip has shorted. The problem is that this little board$200.. has been replaced twice. Any ideas why this chip would blow and are their any alternatives like a stk4048?? This is getting expensive. I looks like a pain to unsolder and reinstall.
  Reply With Quote
Old 10th December 2004, 11:17 AM   #2
Markje is offline Markje  Netherlands
diyAudio Member
 
Join Date: Jan 2004
Location: The Netherlands
No it's not, cut away the TDA and then desolder the remaining wires. Turn the board around and make sure al holes are clear, so you can easily put a new TDA in place. Then put the new TDA in and connect it to the heatsink before you solder. After that, solder the connections.

Greetz Mark
  Reply With Quote
Old 14th December 2004, 04:36 AM   #3
richt is offline richt  Puerto Rico
diyAudio Member
 
Join Date: Nov 2001
Location: puerto rico
hi

before installing the tda ,put heatsink compound (white cream) on the back of the tda because that tiny chip generates a lot of heat & thats the most common failure .
try putting a cooling fan if your son plays really LOUD or with another extension cabinet (extra speaker and lower impedance
generates more heat)

check if the tda seats very firmly on the heatsink (very important)
that tda costs around 20 bucks ,depending on your location.


richt
  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
need help with TDA7293 weatherlight Chip Amps 21 23rd November 2013 09:49 AM
PCB for TDA7293 jbdivx Chip Amps 8 7th October 2010 02:45 PM
Where can I get a TDA7293??? mfish0305 Solid State 2 18th January 2004 03:19 AM
My TDA7293 project... please help JojoD818 Chip Amps 3 28th November 2003 02:02 AM
Tda7293 chengtaw Solid State 0 18th April 2002 01:19 PM


New To Site? Need Help?

All times are GMT. The time now is 03:58 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