TS 223 Never used..and already dead!

[Goahead]

Hi

Yes i bougth it from ebay...
At the time i bought it, i didnt test it..so several months have past
and i can send it back now.

I know what you may think, but since it has cost 1/4 of normal price,
i still can buy 3 more on ebay before i begin to loose money

I also have a dimmer from jung.. dual dimmer ref:3602 that does not
lit the led in program mode. It does not short the bus but it does
nothing when i try to access it.

I have open it (maybe i can place pictures in forum..) , removed the
dimmer part, and when i connect bus i can ear a buzz noise that seems
to be the transformer (or filter) ,or a capacitor, in the input pcb
part. Didnt check if power gets into chip pins.

SMD parts are not a problem to me. I work everyday with BGAs, TQFP and
0402 resistors and capacitors.
I have the tools..but dont have much knolege where to start
from..thats why a schematic could help.

Till now...all my house works...but i have a dead TS223 and Jung 3602
that i want to get back to life..or at leas explore those to learn
more about EIB

More opinions would be great.

regards
Goahead