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Old 21st February 2006, 01:40 PM   #1
velicko is offline velicko  Serbia
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Default What to do with Denon DCD-560

Well, my appetite grew up since I bought Sennheiser HD 595 headphones, so, I really need to change something with the sound of my cd player Denon DCD-560.

What should I do:
1) Put it away and buy something better (the least possible option)
2) Do modification of line out (changing OPA RC4558P to something decent)
3) Implement (somehow) digital out and build high quality DA converter.

Third option looks like best solution, but I can not find datasheet for SM5818AP, and do not know where I should steal digital signal from.

Well, here is photo attached of output stage of this CD player, so please take a look and give me some suggestions…
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File Type: jpg denon dcd-560 out-small2.jpg (97.8 KB, 615 views)
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Old 22nd February 2006, 07:57 AM   #2
klitgt is offline klitgt  Denmark
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Default Re: What to do with Denon DCD-560

Quote:
Originally posted by velicko
Well, my appetite grew up since I bought Sennheiser HD 595 headphones, so, I really need to change something with the sound of my cd player Denon DCD-560.

What should I do:
1) Put it away and buy something better (the least possible option)
2) Do modification of line out (changing OPA RC4558P to something decent)
3) Implement (somehow) digital out and build high quality DA converter.

Third option looks like best solution, but I can not find datasheet for SM5818AP, and do not know where I should steal digital signal from.

Well, here is photo attached of output stage of this CD player, so please take a look and give me some suggestions…

Is there really not a digital out coaxial or optical on that machine???
The OPA RC4558P can be replaced by NE5532AN/AP. If you want to try OPA2134 you should mount decoupling caps and other things may be needed to make it work at its best.
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Old 22nd February 2006, 01:35 PM   #3
velicko is offline velicko  Serbia
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Quote:
Is there really not a digital out coaxial or optical on that machine???
No, unfortunately there is not any kind of digital out on this CD player.


For the beginning I’ll try to change RC4558P to some Burr Brown OPA, but some friends will help me build high quality DAC (maybe dddac1543mk2), so in near future I'll need to find (anyhow) the way to extract digital signal from this machine, or I’ll have to change it to something else…
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Old 22nd February 2006, 01:46 PM   #4
guytou is offline guytou  France
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there is a possibility of SPDIF out with a lot of Sony DSP , for example CXD 2500 .Is there this one on your CDP ? ( seems like DCD 660/860 , except the digital filter) .
look at the chip before the NPC 58... .
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Old 22nd February 2006, 11:45 PM   #5
velicko is offline velicko  Serbia
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Quote:
Originally posted by guytou
there is a possibility of SPDIF out with a lot of Sony DSP , for example CXD 2500 .Is there this one on your CDP ? ( seems like DCD 660/860 , except the digital filter) .
look at the chip before the NPC 58... .

There are two Sony chips on the lower left side of the board:
CXA1372S and CXA1081 ,
here is a photo...

Can this help?
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File Type: jpg denon dcd-560 sony.jpg (98.6 KB, 524 views)
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Old 22nd February 2006, 11:49 PM   #6
velicko is offline velicko  Serbia
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Here's small photo of the whole board,
just to show the position of those Sony ICs...
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File Type: jpg denon dcd-560 complete - small.jpg (96.1 KB, 494 views)
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Old 22nd February 2006, 11:55 PM   #7
velicko is offline velicko  Serbia
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And there is something:

M50957ESP

just below NCP...
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File Type: jpg denon dcd-560 esp.jpg (97.5 KB, 459 views)
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Old 23rd February 2006, 01:23 AM   #8
Luke is offline Luke  New Zealand
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Hi Velicko,

why dont you read some of the threads on modding cd players.
This player uses BB PCM61 X 2. Highly sought after dacs in some circles.
Add a clock, new op amps and maybe a new transformer, power supplies and good caps will make this a pretty decent little cd.


seeya Arthur
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Old 23rd February 2006, 06:40 AM   #9
wa2ise is offline wa2ise  United States
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I hacked a machine similar to yours, mine uses the PCM61P DAC chips like yours. Seemy page on modifying CD players with tubes
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Old 23rd February 2006, 07:53 AM   #10
velicko is offline velicko  Serbia
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Quote:
Originally posted by Luke
Hi Velicko,

why dont you read some of the threads on modding cd players.
This player uses BB PCM61 X 2. Highly sought after dacs in some circles.
Add a clock, new op amps and maybe a new transformer, power supplies and good caps will make this a pretty decent little cd.


seeya Arthur

I really do read much, but since I am not experienced enough, I wanted suggestions from the community.

I have several good friends that can build any electronic device I need in very short time, but they are not much in high end audio business.. So I must explore alone, which I have to admit is more than interesting…

Anyway thanks.

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