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

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V2 Kit prototype PCBs arrived!

Hi out there,
I have some good news!

Today the first two prototype PCBs of the V2 kit arrived. I will test them this weekend and if anything works fine I will order the PCBs for the series.

I will incude an additional feature in the series PCBs. There would be an input for an external superclock (256xfs) coming from an external clock generator (e.g. Big Ben) to synchronize the players output to that clock.

I also will include jumpers to select different input formats (I2C, Rightjustified and Leftjustified). This will make the kit more flexible adapting it to different players.

There is a new player DVD 407 from Harman Kardon (aprx. 500Euro) which converts SACD to 176.4kHz instead of 88.1kHz as all others do. This player will be compatible with the V2 Kit so there would be the FULL output quality of the SACD at the kit's SPDIF output. This player got a quite good test in the German Stereoplay magazine. I will order it and test the kit with that player!

Stay tuned, I will report about testing the new PCBs

Charly
 
mbcouple said:
Is this the same as the US dvd-47 model? If so, i have a service manual for this with schematic, part numbers etc. It does look in the schematic like it has a stait dsd input though.

I believe it is the same unit maketed in Germany as DVD407. technical data looks quite similar. Is there a chance to mail me the manual? With this in hands I could check for the compatibility of the Kit. If changes had to be done to run with DV-47 I now can include them in the V2 Kit!
 
Re: Up and Running

oehlrich said:
I populated and tested the V2 Kit and it works fine! I am just listening at a constant fs=96kHz for all media in the player ;-))

Tomorrow I will submit first fotos of the new V2 PCB and some comments about its features.


I want one of them!
Charly are you going to sell me the first prototype installed in a player?;-)
 
More Information

Hello,
I promised some photos yesterday, here they are:

http://freerider.dyndns.org/anlage/images-hires-kit-V2-Prototype/index.html

I also made a small presentation showing the differeces between the V1 and the V2 kit. The PPT file you would find here:

http://freerider.dyndns.org/anlage/images-hires-kit-V2-Prototype/2V-Kit.ppt

On the V2 prototype the input for Super Clock is still missing. I put it on the series PCB hoping it will work.
Tomorrow I will order the V2 PCBs and start updating my website. I guess mid of July I will have the V2 Kis ready for shipping.

Charly
 
Re: More Information

oehlrich said:
Hello,
I promised some photos yesterday, here they are:

http://freerider.dyndns.org/anlage/images-hires-kit-V2-Prototype/index.html

I also made a small presentation showing the differeces between the V1 and the V2 kit. The PPT file you would find here:

http://freerider.dyndns.org/anlage/images-hires-kit-V2-Prototype/2V-Kit.ppt

On the V2 prototype the input for Super Clock is still missing. I put it on the series PCB hoping it will work.
Tomorrow I will order the V2 PCBs and start updating my website. I guess mid of July I will have the V2 Kis ready for shipping.

Charly

Hi Charly,

I had a look at the presentation and I have some questions.
Sorry if they look silly but I am really not too much inside electronics!:xeye:

Basicly I am interested in two of the all available option for your kit, namely:
1- Operation as Extended Kit with constant 96kHz output rate
2- Extended Kit with Super Clock (256 x fs) input

Concerning the first I am wondering if it possible to add up to 3 kits to a supported player (i.e. Pioneer DV575) in order to have a full multichannel output with every couple of channel synched to the other.

Regarding the latter I own a fully clocked RME chain (RME ADI-192DD, RME ADI-8 PRO,PC with RME HDSP9652) synched by WordClock.
I use this chain to apply a full system equalisation (5 channels+sub) and crossovering by DRC filters and AlmusVCU.
Owning a player with a Clock input stage I would be able to synch all the system, using ADI192-DD as master clock generator and s/pdif to ADAT converter.
Now the question is: will it be possible to use a wordclock to sync the modified player (with 3 kits in order to obtain a full multichannel output) to the rest of the digital chain? If it is the case providing a constand input clock (44.1Khz, 48Khz, 96Khz, etc...) will the output clock be constant regardless of the media played?

Thank you very much in advance!
 
Re: Re: More Information

Michele Spinolo said:
Basicly I am interested in two of the all available option for your kit, namely:
1- Operation as Extended Kit with constant 96kHz output rate
2- Extended Kit with Super Clock (256 x fs) input

Dear Michele
the kit has a SRC on board transforming the input from the player to a constant 96kHz output. Regarding three kits this should be possible to run them in sync with some minor modifications. There have to be some additional wires between the boards and that’s it. If you like to operate this synchronous mode I could do the modifications for you.

The kit did not support wordclock input but superclock input (256 x fs). Please check if ADI192-DD supports this clock output. Big Ben does.

The output of the kit is synced to that superclock so regardless which media you play you always get a perfect 96kHz output.

Charly
 
Re: Harman Kardon DVD-47

oehlrich said:
I checked the schematics of that player. It is a pure DSD unit.
So there would be no chance to install the kit inside that player.
Sorry making you some hope but they use a Phillips decoder. Internally it works with 24Bit PCM but it is is programmed to output DSD.


I now have the schematic of the Pioneer DV989. Unlike the 575, this uses a Sony CXD2753R SACD Decoder feeding the PCM1738 converters separately from a DVD-A DSP chip. I can't yet find data for the DSD decoder.

In such a scheme, do you think there is a chance of getting DSD data out?

Fred
 
Re: Re: Harman Kardon DVD-47

fmak said:
I now have the schematic of the Pioneer DV989. Unlike the 575, this uses a Sony CXD2753R SACD Decoder feeding the PCM1738 converters separately from a DVD-A DSP chip. I can't yet find data for the DSD decoder.

In such a scheme, do you think there is a chance of getting DSD data out?

Fred

PCM1738 is a pure PCM converter. This means the kit should work with it!

Would you please mail me the schematic so I could verify this.
Thanks Charly
 
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