Hello I send some photos like this on my pass labs PCB-1 X2
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
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?
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...
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...
An externally hosted image should be here but it was not working when we last tested it.
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.
Now it seems to be clear... It is rev1
The picture is here
http://tinypic.com/view.php?pic=307thlh&s=5
The picture is here
http://tinypic.com/view.php?pic=307thlh&s=5
If I remember correctly the amp still works but has a constant hiss/noise in the one or both channels.
Miguel didn't reply on my last e-mail to him regarding this question.
I offered him a complete repair for free just to because I want this amp to remain original and because he also lives in Europe.
It's up to him now!
Miguel if you want to keep it in Spain, make sure it's fixed by a technician with great appreciation for high-end equipment
Mail me if you need my help.
Regards,
José
Audiofanatic
Miguel didn't reply on my last e-mail to him regarding this question.
I offered him a complete repair for free just to because I want this amp to remain original and because he also lives in Europe.
It's up to him now!
Miguel if you want to keep it in Spain, make sure it's fixed by a technician with great appreciation for high-end equipment
Mail me if you need my help.
Regards,
José
Audiofanatic
Miguel if you want to keep it in Spain, make sure it's fixed by a technician with great appreciation for high-end equipment
Audiofanatic
Or Do It Yourself, it's fun
pass labas x2-1
Thanks Jose, I think that I can fix, I ordered some parts
but I have some doubts as the bridge on the zener or bottom of pcb
the transistor Q5 is a zener and a resistor, I would like to know naps components are an improvement or I move through the circuit?
thanks.
http://i42.tinypic.com/20hmuyf.jpg
Thanks Jose, I think that I can fix, I ordered some parts
but I have some doubts as the bridge on the zener or bottom of pcb
the transistor Q5 is a zener and a resistor, I would like to know naps components are an improvement or I move through the circuit?
thanks.
http://i42.tinypic.com/20hmuyf.jpg
Last edited:
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