Author Topic: Frontier Designs ZULU DAC  (Read 14474 times)

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Offline ImageLight

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Frontier Designs ZULU DAC
« on: September 17, 2009, 07:44:53 pm »
4 inputs - 8 outputs connected via ADAT Lightpipe.  Just have to figure out how to de-couple this thing.

What are you looking at....

Offline BlinkenLights

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Re: Frontier Designs ZULU DAC
« Reply #1 on: September 17, 2009, 08:05:38 pm »
ok i think i see 4 dac chips there
U4 U5 U6 U7

and each has 2 caps
C38 C38 C42 C44 C48 C50 C54 C56

i would think that thats where you decouple... 

but im no expert

Offline drlava

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Re: Frontier Designs ZULU DAC
« Reply #2 on: September 17, 2009, 08:29:21 pm »
Yep, I'd say that's a good guess.  As long as U14 and U15 are just dc coupled buffers and the yellow/orange 16 pad devices are resistor arrays, that's the only location I see DC blocking.

Offline James

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Re: Frontier Designs ZULU DAC
« Reply #3 on: September 17, 2009, 09:41:23 pm »
If you use a continuity checker between the output jack positive signal, back to the non-DAC side of that cap you should measure zero ohms.

Beeeeeeeeeeeeeeeeeeeeeeep!  ;D

The other side of the cap will, of course, have no DC path at all.

James.  :)
« Last Edit: September 17, 2009, 09:58:52 pm by James »
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Offline ImageLight

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Re: Frontier Designs ZULU DAC
« Reply #4 on: September 18, 2009, 10:37:53 am »
Hey Guys,

Thanks for the insight on this.  I have to get a new multi-meter,
mine died last week.

Mark 
What are you looking at....

Offline James

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Re: Frontier Designs ZULU DAC
« Reply #5 on: September 22, 2009, 07:50:16 pm »
Wait a minute.....

Operating without a working multimeter.....

That's a violation of International Nerd Law!  :P

Dude!

You better get that rectified soon!

James.  :)
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