perfect schematic for av400!!

[raxfor]

hi my frinds

i buy av400 pcb

please see picture.there is not these two transistor in the schematic

what is perfect schematic???

😕

 

[AndrewT]

Hi,
so much for "have you searched "
http://www.diyaudio.com/forums/showthread.php?postid=1106732#post1106732
from just two weeks ago!

 

[bigpanda]

Hi raxfor,

Your board looks like is for the lastest version released to the public but not the schematic Andrew is referring to. If you 'buy' that board, I would really like to know how much you paid for it. It just looks so...... No hard feelings please. Just wondering where you find them?

 

[Stanley Drake]

To raxfor:
These 2 tranzistors is for a clipping detector circuit.
To bigpanda:
That PCB looks like it made by drawings of one polish clone of AV400. http://www.elektroda.net/audio/mosfet400w.html

 

[bigpanda]

Stanely,

Since you are here, I did like to ask you what is that part of circuit for (I think you do have the schematic, don't you?) ? It looks like some short of feedback, isn't it?

 

[Stanley Drake]

To bigpanda:
Here is schematics for AV400 (Polish drawing), you also can download it from link above.
No, it's not a feedback. It's just a clipping detector.

 

[bigpanda]

Tks for the information Drake. I had the schematic already. My mistake, I thought the common point from R41,42 goes to the speaker output instead of the +ve rail. Tks