question on TDA7293/4 layout

Started by Marcos - Munky, August 23, 2018, 09:23:44 PM

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Marcos - Munky

A friend owns a Marshall MG100 which has been used for a long time on the road. He asked me to replace the TDA7293, which had burned because the amp was connected to the wrong voltage.

The thing is the TDA has been replaced so many times the lottle board that hols it can't take a soldering iron anymore. The pads are loosing from the board. So I told him it's a good idea to make a new board.

I know for the TDA7293/4 layouts some tracks may be thinner while other tracks have to be thicker. My questions are: which tracks have to be thicker? And how much thick they have to be?

Link to the schematic (yeah, the board just holds the TDA and a few caps)

maartendh

Datasheet TDA7294 contains a pcb layout that might help.

Marcos - Munky

Duh, I always forget to check the datasheets. Got an idea of what to do. Thanks a lot!