perfect schematic for av400!!

raxfor · 28th January 2007, 08:41 AM

hi my frinds

i buy av400 pcb

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

what is perfect schematic???

AndrewT · 28th January 2007, 10:42 AM

Hi,
so much for "have you searched "
http://www.diyaudio.com/forums/showt...32#post1106732
from just two weeks ago!

bigpanda · 28th January 2007, 03:01 PM

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 · 28th January 2007, 03:50 PM

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 · 29th January 2007, 02:16 AM

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 · 29th January 2007, 02:34 PM

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 · 29th January 2007, 04:18 PM

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

28th January 2007, 10:42 AM	#2
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Hi, so much for "have you searched " http://www.diyaudio.com/forums/showt...32#post1106732 from just two weeks ago! __________________ regards Andrew T.

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28th January 2007, 03:01 PM	#3
bigpanda diyAudio Member Join Date: Jun 2004 Location: HKSAR	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?

28th January 2007, 03:50 PM	#4
Stanley Drake diyAudio Member Join Date: Oct 2006	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

29th January 2007, 02:16 AM	#5
bigpanda diyAudio Member Join Date: Jun 2004 Location: HKSAR	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?

29th January 2007, 04:18 PM	#7
bigpanda diyAudio Member Join Date: Jun 2004 Location: HKSAR	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

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