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Old 27th December 2015, 09:11 PM   #1
Gyuri is offline Gyuri  Hungary
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Hi folks,

It is my new DAC it was a surprise for me at Christmas:
https://tjh0hg-bn1306.files.1drv.com...big.JPG?psid=1
Don't say nothing, it will be a DIY product for me.
Even I can say it is a DIY product, as is, from that ages, when Gullman kids learns to solder.
It was sarcasm, I really didn't want to hurt them.
Larry rightly be proud of his sons.
But it is a fact, there was some nice cold soldering on the P1000 panel.
And there are some quite interesting solutions, I have questions about these.

It is my first question:
DC power output why taken from the legs of diodes?
You know me, I'm not an EE mind, maybe I missed something.
Second question:
Is it worth it to change all the electrolit capacitors, I think, it was made cc. 2000-2001.
There are 22 pieces 1000uF/25V JACKCON elko, and 7 pieces 6800uF/25V.
Third question,
Is it better to paralell secondaries of tranny as can be seen on pics, or it would be better to separate them?
If I'm right, there are two empty place for power connectors (J14 and J15) on DAC's mainboard, maybe I can using these.

Anyway, it is a quite good sounding device I think, and I do not want to make it worse.

Any advices are welcome, and happy holidays for Gulmanns!

Wacky Gyuri

There are pictures what I made:

https://onedrive.live.com/redir?resi...t=folder%2cJPG

I hope so, this link will work even tomorrow.
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Old 28th December 2015, 01:07 AM   #2
Jaffrie is offline Jaffrie  Indonesia
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Wow it's well done inside. Curious about what dac is hiding underneath the casing. If u must change the caps start with a few say at the output stage. Can try Elna Silmic. Me I prefer Silmic over Silmic ll

Cheers
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Old 28th December 2015, 10:28 AM   #3
Gyuri is offline Gyuri  Hungary
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I do not necessarily need to change the capacitors, I just thought, was once one of thousands of dollars worth of machine deserves something better quality.
I have reliable access Elna Silmic II only.
Anyway, I have some problems with this DAC, it seems to me 16x interpolation and brick wall filter doesn't work.
Scope pics will be follow.
Upsampling O.K., it can lock SPDIF signal even at 192KHz.

Gyuri
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Old 30th December 2015, 04:23 PM   #4
Gyuri is offline Gyuri  Hungary
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Isn't there anybody who is more familiar with this device as me?
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Old 2nd January 2016, 11:53 AM   #5
Gyuri is offline Gyuri  Hungary
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I know that Best DAC is no DAC, but what can I do now, throw it out the windows?
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Old 16th January 2016, 08:48 PM   #6
Gyuri is offline Gyuri  Hungary
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I was wrong, 16x interpolation and brick wall filter also work.

https://onedrive.live.com/?authkey=%...94CB7D50B65FBF
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Old 18th January 2016, 08:59 AM   #7
Gyuri is offline Gyuri  Hungary
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As I can see, Elna Silmics will not fit, either in diametre and height.

Which Panasonic FC can I use?
Is it worth to choose a larger one, say 1200uF or 1500uf instead of original 1000uF JACKCONs?

I would choose this one:

PANASONIC ELECTRONIC COMPONENTS EEUFC1E152 Electrolytic Capacitor, FC Series, 1500 F, 20%, 25 V, 12.5 mm, Radial Leaded

Diameter is a little bit larger, it will be tight, but fit.

Any thoughts?
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Old 18th January 2016, 03:21 PM   #8
Gyuri is offline Gyuri  Hungary
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Too bad, there is no answer.
I am forced to go on my own way.
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Old 18th January 2016, 05:22 PM   #9
Jaffrie is offline Jaffrie  Indonesia
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Go try the nichicon KZ 1000 uf. For dac 1000 uf should suffice
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Old 18th January 2016, 06:00 PM   #10
Gyuri is offline Gyuri  Hungary
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Thanks.
You know, this ship was gone.
I have ordered these:
Nichicon LKS1E103MESA
Panasonic EEU-FC1E152
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