Audio Note DAC1 Schematic

Ap · 29th July 2005, 07:00 AM

Hi,
I have a Audio Note DAC1 signature which is blowing fuses, wondering if anyone has a schematic (Ive done a Google & only found the 1.1kit which is different).
Thanks.

Elso Kwak · 29th July 2005, 09:45 AM

Quote:

Originally posted by Ap
Hi,
I have a Audio Note DAC1 signature which is blowing fuses, wondering if anyone has a schematic (Ive done a Google & only found the 1.1kit which is different).
Thanks.

Defective rectifier(s), supply caps? Do they get warm?

Guido Tent · 29th July 2005, 06:40 PM

Quote:

Originally posted by Ap
Hi,
I have a Audio Note DAC1 signature which is blowing fuses, wondering if anyone has a schematic (Ive done a Google & only found the 1.1kit which is different).
Thanks.

Hi

If it is the old style AN DAC (oversampling, PCM63 style), look for DAC3 or DAC4 schematics, these are the same as DAC1.

Sometimes the transformer goes. Disconnect all secondaries and check if fuse keeps going.

Ap · 31st July 2005, 11:50 PM

So far, have disconnected all secondaries from board & fuses were Ok, next reconnected valve/analogue side only & fuses were still Ok. So its got to be the other side...
Will check rectifiers & PS caps next.
And yes it uses PCM63P -but still no luck on a schematic.
Thanks for the input.

Guido Tent · 1st August 2005, 08:56 AM

Quote:

Originally posted by Ap
So far, have disconnected all secondaries from board & fuses were Ok, next reconnected valve/analogue side only & fuses were still Ok. So its got to be the other side...
Will check rectifiers & PS caps next.
And yes it uses PCM63P -but still no luck on a schematic.
Thanks for the input.

Hi,

Good observations.

Mail me offline and I'll mail you a circuit. Can't find it on the net anymore.

cheers

29th July 2005, 07:00 AM	#1
Ap diyAudio Member Join Date: May 2002 Location: Sydney, Australia	Audio Note DAC1 Schematic Hi, I have a Audio Note DAC1 signature which is blowing fuses, wondering if anyone has a schematic (Ive done a Google & only found the 1.1kit which is different). Thanks.

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31st July 2005, 11:50 PM	#4
Ap diyAudio Member Join Date: May 2002 Location: Sydney, Australia	So far, have disconnected all secondaries from board & fuses were Ok, next reconnected valve/analogue side only & fuses were still Ok. So its got to be the other side... Will check rectifiers & PS caps next. And yes it uses PCM63P -but still no luck on a schematic. Thanks for the input.

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