DAC 2496 (AK4393) DAC KIT With CS8416+AK4393+5532 - Page 169 - diyAudio
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Old 20th April 2012, 06:43 PM   #1681
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Originally Posted by tinitus View Post
no, not really
Sounds crystal clear to me, very helpful
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Old 20th April 2012, 07:29 PM   #1682
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Default well, try this...

Quote:
Originally Posted by tinitus View Post
no, not really

Much of the discussion on this thread revolves around a set of documents that Dario has placed on a Google Documents page:

https://docs.google.com/#folders/0B-...UzNzhjODI5MWRm

[or see links Dario has placed, for example, page 113 , message 1125]...

By creating the Google Docs folders, we have a single place where you can find the BOM's schematics and pictures, and know that you're looking at the most recent updates.

Paul
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Old 21st April 2012, 09:13 AM   #1683
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hi a little of topic but not much.
I have received some parts for the DAC from Distrelec with an invoice.

There is no indication of how to pay, how do members generally pay.
I am in the UK
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Old 21st April 2012, 12:04 PM   #1684
bcmbob is offline bcmbob  United States
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In my upgrade process I unfortunately lost some thru-hole metal sleeves again.

The signal paths are not much of a problem and some of the grounds are repairable by flowing solder up the lead to the top of the board.

Will I be creating a problem by jumpering to the closest "valid" ground/- position on the bottom of the PCB?
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Old 21st April 2012, 01:03 PM   #1685
bcmbob is offline bcmbob  United States
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OOPS! Corrected. Too early in the morning.
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Old 21st April 2012, 01:05 PM   #1686
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Quote:
Originally Posted by bcmbob View Post
In my upgrade process I unfortunately lost some thru-hole metal sleeves again.
I'm sorry to hear that...

Quote:
Originally Posted by bcmbob View Post
Will I be creating a problem by jumpering to the closest "valid" ground/- position on the bottom of the PCB?
So the broken via is a ground connection?

If so I think it would be fine.
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Old 21st April 2012, 01:22 PM   #1687
bcmbob is offline bcmbob  United States
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Hi Dario, Yes it is ground. The few signal pads that were lost can easily be fixed by scraping the trace and applying solder to reconnect.

....and thank you for not reminding me about the rework station you recommended several pages ago.
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Old 21st April 2012, 05:46 PM   #1688
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Hi Bob,
I've done the same, bent the lead around to the next ground point to fix.
I don't like the modern idea of two layer boards, give me the old ones with all tracks on the bottom any day
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Old 23rd April 2012, 09:09 PM   #1689
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In my amplifier (Yamaha DSP-A1) there are some DAC chips. All of them are AK4324. That is a 1 bit DAC, 128 times oversampling up to 96 kHz. 24 bit, 8 x digital filter and SCF filter in the analogue part.

So what is a better solution? Keep my S/P DIF output of the CD player (and have the Yamaha process it), or use the mini 2496 DAC board (which I now installed in the CD-player), and use the analog output to the amplifier?
The Yamaha is already 12 years old, so is the technology. Or is the technology in the AK4324 chip still "acceptable", compared to the 2496 mini DAC?
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Old 23rd April 2012, 09:23 PM   #1690
bcmbob is offline bcmbob  United States
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Gave up the ghost. Two re-do attempts was just too much for the PCB to bear. Got new board with SMD chips installed ($12) on the way - Air Mail.
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