[sdiy] ARP Trigger signal

[Csaba Zvekan]

Hi Everybody,

I woke up this morning with a thought that maybe my problem is not the  
actual S/H submodule rather than an invalid trigger signal.
Since it's not even 5 volt and goes into a negative state when the  
curve drops.This makes me suspect my circuitry around  
R391,R392,C119,R390 maybe faulty. Now I know that those are just  
Resistors and Capacitors and maybe OK but still . Can somebody  
validate my signals I measured here .

http://www.csaba.ch/index.php?option=com_content&task=view&id=25&Itemid=30

especially the part from R391 ? Is that a correct trigger signal ?


Thanks

Csaba