Audio Project Amplifier Speaker Loudspeaker Kit
diyAudio.com diyAudio Forums Archive > Top > Amplifiers > Class D
 
Amp32 won't work... - Click HERE for Original Thread
v-bro
Hi,

I've bought a couple of AMP32's from 41hz.com

The first ones I built worked immediately (know the instruction manual thoroughly now...).

On the last one I accidentally shorted two of the schottky diodes (positive VDD to ground :eek: :( ). It happened when I but bolts through the two holes besides the chip the nuts made contact. Nothing visibly burned, no smoke or funny smell.

I allready replaced the chip and N channel FET, still no led burns, no sound...

All legs that need VDDand ground are connected to the chip (measured it from the supply input wires till the chip legs).

Any help highly appreciated...
v-bro
Oh yes and here's the datasheet (with schematic) of the evaluation board (claimed by certain people to be quite similar)..
http://www.41hz.com/downloads/EB-TA2021B_D.PDF
v-bro
Got another one that only produces rythmic clicks....
Anybody?


Some help would be appreciated a lot...:worship:
v-bro
Well thanks a lot everybody, just got them all running... Yippeeeee!

Measuring CAN help.....

Page generated in 0.019361972808838 seconds with 17 queries,
spending 0.00774813 doing MySQL queries and 0.01161385 doing PHP things.

Powered by: Search Engine Indexer and vBulletin
Copyright ©1999-2008 diyAudio.com