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10th January 2012, 01:19 PM
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#11 |
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diyAudio Member
Join Date: Oct 2002
Location: The Netherlands, Utrecht
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pic
Pic of the PCB form Miguel.
Audiofanatic 
__________________
Be nice to animals. |
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10th January 2012, 01:57 PM
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#12 |
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diyAudio Member
Join Date: May 2010
Location: Central JAVA, Indonesia
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Hi Audiofanatic, if I'm not wrong those resistors (3k3) connect to Drain IRF610 and it's serve as the loads for the IRF610. If mosfet's damage it's possible make resistor's overload and burn it. Just replace with new resistor, if it's burn again...replace those Fet's. It's cheap enough... What a Miguel doing this before?
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10th January 2012, 05:19 PM
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#13 |
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diyAudio Member
Join Date: Jul 2009
Location: Near Frankfurt
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I have a picture from Miguel that shows a shorted Zener, that makes it difficult to say if its ver0 or ver1.
one possibility could be,..... someone repaired ver1 with the circuit of ver0.... and caused some problems.... only a possibility unfortunately I can for unknown reasons not upload the picture...
__________________
and the First W tt is......a really First Class P SS Idea !
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10th January 2012, 05:34 PM
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#14 |
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diyAudio Member
Join Date: Oct 2002
Location: The Netherlands, Utrecht
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This one?
Pic from Miguel.
Audiofanatic
__________________
Be nice to animals. |
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10th January 2012, 06:37 PM
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#15 |
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diyAudio Member
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
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typical proper disposal candidate case......
Owner of Official PL Disposal Facility 
__________________
my Papa is smarter than your Nelson ! tnx to  clean  thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; Mighty ZM's Bloggg;I'm dumb
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10th January 2012, 07:33 PM
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#17 |
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diyAudio Member
Join Date: Jul 2009
Location: Near Frankfurt
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hi audiofanatic,
would you tell Miguel in Spanish to look for the Revision number on the board? compared to the service manual it should be ver1 and not ver0.... one resistor right and 12 Zener (one shorted)
__________________
and the First W tt is......a really First Class PSS Idea !
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10th January 2012, 07:45 PM
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#18 |
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diyAudio Member
Join Date: Dec 2011
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I don't know about this particular board, but in general quite often besides running wires to replace the function of damaged/lost traces, adhesive-backed copper tape may work. It is commonly available on the auction sites. Just trim as needed with scissors.
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10th January 2012, 08:18 PM
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#19 |
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diyAudio Member
Join Date: Oct 2009
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this is what is recorded in the PBC and the IRF9610 (Q5) has soldier a zener and a resistor that is not on the circuit, nose if it is an improvement because they seem original components. |
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10th January 2012, 08:31 PM
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#20 |
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diyAudio Member
Join Date: Jul 2009
Location: Near Frankfurt
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Now it seems to be clear... It is rev1
The picture is here http://tinypic.com/view.php?pic=307thlh&s=5
__________________
and the First W tt is......a really First Class PSS Idea !
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