pioneer dv-578a mod, or how to get sacd out

whodiini · 25th October 2004, 06:22 AM

Does anyone have the schematic/service manual for the 578a, or tried to mod it?

I'm interested to see if I can pull sacd out. Supposedly, it converts SACD to 88/24bit prior to sending it to a cheapo BB DAC. I'd like to try to pull the PCM converted SACD thru the digital out, so I can process the digital thru a better DAC, like the benchmark 1. Anyone tried to do this or with another player?

THX

oehlrich · 19th December 2004, 05:53 PM

I currently work on that mod.
First prototype is ready, more details and pics after Christmas.

Be happy. This will be the first player who outputs anything from DVA-Audio (up to 192kHz) to SACD as S/PDIF.

Charly

whodiini · 19th December 2004, 10:21 PM

Look forward to your mod. I know that dvdupgrades offers a mod, but it is expensive, mainly because they do a sacd to pcm conversion, which was design intensive. The 578 already does the sacd to pcm conversion, so it would seem that the bulk of the work was done, and all that was needed was to pull the pcm prior to the dac and transmit it using a CS or TI chip to spdif. Hopefully it will be a DIY and relatively inexpensive. Good luck!

OTMOPO3OK · 21st December 2004, 06:03 AM

Very nice i'm closely watching this thread since i own a player and recently thought of tweaking it but just damped the chasis and put a plate of marlbe on top and under the unit. No resonance

.
I don't have extensive experience in tweaking DVD/CDs so i'd like to see what you can do with that thing. Keep up the good work,Charly!!!

oehlrich · 25th December 2004, 10:50 AM

Hi folks,

merry christmas and I have a present for you.

My first prototype works fine!!!

For it I opened a new discussion thred.

Hirez SACD and DVD-A digital output for Pioneer DV-575A and DV-578A (dsd to pcm)

Charly

oehlrich · 22nd October 2005, 09:36 PM

Hello again,
my PCB is ready for shipping see http://freerider.dyndns.org

Charly

25th October 2004, 06:22 AM	#1
whodiini diyAudio Member Join Date: Oct 2004	pioneer dv-578a mod, or how to get sacd out Does anyone have the schematic/service manual for the 578a, or tried to mod it? I'm interested to see if I can pull sacd out. Supposedly, it converts SACD to 88/24bit prior to sending it to a cheapo BB DAC. I'd like to try to pull the PCM converted SACD thru the digital out, so I can process the digital thru a better DAC, like the benchmark 1. Anyone tried to do this or with another player? THX

19th December 2004, 05:53 PM	#2
oehlrich diyAudio Member Join Date: Feb 2004 Location: Bavaria Germany	SACD out I currently work on that mod. First prototype is ready, more details and pics after Christmas. Be happy. This will be the first player who outputs anything from DVA-Audio (up to 192kHz) to SACD as S/PDIF. Charly

19th December 2004, 10:21 PM	#3
whodiini diyAudio Member Join Date: Oct 2004	dv-578A mod Look forward to your mod. I know that dvdupgrades offers a mod, but it is expensive, mainly because they do a sacd to pcm conversion, which was design intensive. The 578 already does the sacd to pcm conversion, so it would seem that the bulk of the work was done, and all that was needed was to pull the pcm prior to the dac and transmit it using a CS or TI chip to spdif. Hopefully it will be a DIY and relatively inexpensive. Good luck!

21st December 2004, 06:03 AM	#4
OTMOPO3OK diyAudio Member Join Date: Sep 2004 Location: Brooklyn,NY	Wow!!! Cool!!! Very nice i'm closely watching this thread since i own a player and recently thought of tweaking it but just damped the chasis and put a plate of marlbe on top and under the unit. No resonance. I don't have extensive experience in tweaking DVD/CDs so i'd like to see what you can do with that thing. Keep up the good work,Charly!!!

25th December 2004, 10:50 AM	#5
oehlrich diyAudio Member Join Date: Feb 2004 Location: Bavaria Germany	Prototype up and runnning Hi folks, merry christmas and I have a present for you. My first prototype works fine!!! For it I opened a new discussion thred. Hirez SACD and DVD-A digital output for Pioneer DV-575A and DV-578A (dsd to pcm) Charly


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22nd October 2005, 09:36 PM	#6
oehlrich diyAudio Member Join Date: Feb 2004 Location: Bavaria Germany	Pioneer 578A Mod Hello again, my PCB is ready for shipping see http://freerider.dyndns.org Charly __________________ For best results keep audio in the digital domain as long as possible http://freerider.dyndns.org

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