Another class d driver board clone...
Posted: Thu Mar 16, 2017 12:19 pm
Hey folks, this is another one that isn't PG related, but I thought you guys that dabble in repairs might be able to use this.
I'm working on cloning the "generic Asian class d driver" if you do repairs, you will probably recognize the board pictures. These drivers are in hundreds of different class d clones. The drivers almost always have a overheated transistor pair at q124/125. Sometimes they burn the board bad enough to be conductive.
The stock driver card is paper thin and repairing them can suck. My goal is to have replacement boards made so we don't have to try to cobble them back together. I'm also working to make some improvements for reliability which may lead to a completely new layout and better components with heat sinking. I'll be working more on that soon. For now, see below for a PDF of the schematic, I just finished ringing the board of the other night and I also did a layout with stock parts but in all through home parts to make it easier for hobbyists.
Click for PDF
Thanks,
Jason
Sent from my SM-N910V using Tapatalk
I'm working on cloning the "generic Asian class d driver" if you do repairs, you will probably recognize the board pictures. These drivers are in hundreds of different class d clones. The drivers almost always have a overheated transistor pair at q124/125. Sometimes they burn the board bad enough to be conductive.
The stock driver card is paper thin and repairing them can suck. My goal is to have replacement boards made so we don't have to try to cobble them back together. I'm also working to make some improvements for reliability which may lead to a completely new layout and better components with heat sinking. I'll be working more on that soon. For now, see below for a PDF of the schematic, I just finished ringing the board of the other night and I also did a layout with stock parts but in all through home parts to make it easier for hobbyists.
Click for PDF
Thanks,
Jason
Sent from my SM-N910V using Tapatalk