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Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

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Old 14th June 2014, 11:38 PM   #2921
dacen is offline dacen  Norway
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Join Date: Jul 2006
Had to investigate a little to see if I could find out what the other two ICīs that comes after the CXD2510 and before the AKM DAC does. The CXD1815 is just a controller : CD-CONTROLLER ? PSXDEV But the chip that comes thereafter probably explains why so many people like the sound that comes out of the inbuilt DAC. It is a CXD2925. It is a sound processing unit : SPU ? PSXDEV. This is a way of manipulating the sound in the digital domain to make it more pleasing to the human ear. You have to do a translate to get it in English. Taking the signal from the digital output (SPDIF) to a separate DAC bypasses all that and my guess is that the sound will be more natural without this manipulation or cosmetic if you like.

Last edited by dacen; 14th June 2014 at 11:45 PM.
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Old 21st June 2014, 10:05 PM   #2922
bcmbob is offline bcmbob  United States
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Join Date: Dec 2009
Location: Bay City, Michigan
This probably should be on the swap meet thread, but just wanted to post that I have several units I bought as a package and never tried to mod. I'm all digital now so don't need them. Don't know if any are usable for this project, but they are selling at the price FREE + shipping.

PM me if interested.

SCPH-5501 @ 2

SCPH-9001

SCPH-7001

SCPH-1001 @ 2 (1 All parts present but disassembled / 1 missing laser head)
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"Arrange Whatever Pieces Come Your Way."
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Old 16th July 2014, 11:25 AM   #2923
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Join Date: Dec 2013
Hello guys,
I have modified SCPH-1002 with overload (?) sound. I have no idea what goes wrong with the modification (all done like a Feinste ANALOGE Klangeigenschaften SONY PS1 Playstation 1 SCPH-1002 High End CD Player deutschermanfred.de, including power supply).
Here is audio file with startup sound and modification photos:
https://www.youtube.com/watch?v=gn_L...ature=youtu.be

I have used OPA2134UA and DC2WSIL5/12 (DC/DC converter).
In audio section are 35k Ohm resistors, but on 39k (smd) effect is the same.

My testing platform is Logiteh x-530 (PC speakers) or FiiO with CAL! headphones (better parts is not avaible now).
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