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Old 25th October 2004, 05:22 AM   #1
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Default 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
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Old 19th December 2004, 04:53 PM   #2
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Default 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
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Old 19th December 2004, 09:21 PM   #3
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Default 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!
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Old 21st December 2004, 05:03 AM   #4
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Default 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!!!
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Old 25th December 2004, 09:50 AM   #5
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Default 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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Old 22nd October 2005, 08:36 PM   #6
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Default Pioneer 578A Mod

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

Charly
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