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Hi all, recently finished a stereo BIII with 2*Toslink,2*Coax and I2S via sidecar. So it happens I had a Pioneer DV-LX0 lying around gathering dust since all sources are digital now. Inspired by posts I read ( can't find them anymore) about modding a Denon player I could lay my hands on a service manual for the Pioneer player. I attach some pictures to illustrate my questions: 1. Is BIII able to play DSD without any processing or buffering? 2. Can I take signals DSD-R (1), DSD-L(2), DBCK(10) and GND(9) on board to board connector and feed it to BIII? To make this possible I have to make a relay board to switch between I2S and DSD before Sidecar. 3. Are the signals taken out of the player on the required level for BIII? I hope these questions are not too much off topic in this tread. Your reactions are very appreciated, Henri Edited by user Wednesday, June 27, 2012 9:44:12 AM(UTC)
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Very likely as long as the DSD signals are TTL level or close you can use them directly.
Good new for you we have a new 4 x 2:1 bus mux/demux we just ordered PCBs for and are about to test it. So switching will be really simple, and no relays :)
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Hi Russ, that should be good news! Will it be possible then to connect ALL 6 sources (2*Toslink, 2*Coax, I2S and DSD) to the new Mux/Demux without relay switching? I take a sidecar is still needed? When will a description of the new module be available? BTW: The BIII is a real masterpiece. Never heard that kind of detail and analog-like realism. Thanks for making that possible to the diy-community. kind regards, Henri Edited by user Thursday, June 28, 2012 11:36:50 AM(UTC)
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In order to place a J45 connector on the back of the Pioneer dv-LX50 the pcb's had to be taken out. Essential is to pack the rest very carefully to avoid metal particles entering. Next I will try to get signals to sidecar over a CAT5 cable. I do not know if this will work. If not, Russ surely will advise to use a teleporter. Edited by user Monday, July 2, 2012 11:42:42 AM(UTC)
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Henri, you may be glad to know that the 2:1 bus mux we were working has been tested and works wonderfully. :) We will have it up for sale soon. Cheers! Russ Russ White attached the following image(s): pcb2.jpg (144kb) downloaded 26 time(s).You cannot view/download attachments. Try to login or register.
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We are now 6 months later and I did nothing to finish my Pioneer DSD to BIII project until now. I recently got 2 teleporters and 1 OttoII and wish to place them in the most favorable way next to the sidecar. The pictures show how I like to mount them. Added in the package are screw terminals, but I dont know if that is the best way to connect the different in- and outputs. Can I simply use bandcable used to connect BIII to sidecar and Sidecar to SPDIF4 module? Or a simple wire should do? Or use Ufl coax? Thanks for your advice [img][/img] henri47 attached the following image(s): teleporter in pioneer LX50.jpg (209kb) downloaded 36 time(s). tapping DSD signals.jpg (222kb) downloaded 32 time(s). all in place.jpg (248kb) downloaded 44 time(s). placing teleporter and Otto .jpg (220kb) downloaded 60 time(s).You cannot view/download attachments. Try to login or register.
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I would go for u.fl, hard to solder receptacles though
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even with these small distances? ( less than 1"/12mm to be precise, see picture). I should then have to move the modules farther away from each other to accommodate the length of the u.fl coaxes! Edited by user Tuesday, January 22, 2013 2:24:16 PM(UTC)
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Use simple twisted pairs for differential signals. Do not use coax.
For the short TTL run use simple hookup wire nice and short. It will work quite nicely.
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Hi Russ, Thanks for your advice, but if you look at the attached picture, distances between Teleporter, OttoII and WaveIO are very small, typically around 1cm. Is it ok to use simple hook-up wire between modules? Edited by user Thursday, January 24, 2013 9:43:59 AM(UTC)
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Try straight wires first. It will probably be fine. You only need to hot one of the ground points on the Teleporter I2S pads.
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Straight wires will work quite well there. The distance are short and tight.
Let us know how it works! :)
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Thanks. I try straight hook-up wires first. I surely will let you know if it works. Edited by user Friday, January 25, 2013 8:28:12 AM(UTC)
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Does somebody know the reason for the 2 solderpads labeled Vin on the teleporter board? Seems to be only a duplicate of Vcc? henri47 attached the following image(s): IMG_0169.jpg (176kb) downloaded 39 time(s).You cannot view/download attachments. Try to login or register.
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Just to make it easier to solder a two row header.
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Thanks Russ and Brian,
Today I finished mounting the teleporters and OtoII.
Following issues have been observed:
1. I2S signals, firstly delivered directly by WaveIO to Sidecar, are not as stable as before. Signal unlocks between songs regularly and selector switch has to be moved in and out of USB position making the Dac lock.
2. No sound (except sometimes a crackeling noise)in DSD position.
I checked signals with my 20MHz old scope, but all seems fine to me, but the lock LED does not indicate DAC locking.
Any idea's?
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After checking all the connections, I took some pics of the waveforms in the SACD player and the BIII. All functions are as intended, but BIII refuses to lock on DSD signals. Also problems with locking between songs for I2S. I Took the first 3 pics on the tap points inside the SACD player. The next 2 pics show the signals entering sidecar. Edited by user Friday, February 1, 2013 1:29:52 PM(UTC)
| Reason: Not specified henri47 attached the following image(s): DSD timing 1.jpg (184kb) downloaded 10 time(s). DSD bitclock.jpg (226kb) downloaded 6 time(s). DSD data L.jpg (221kb) downloaded 4 time(s). DSD data L+R.jpg (243kb) downloaded 6 time(s). DSD bitclk on sidecar.jpg (152kb) downloaded 6 time(s).You cannot view/download attachments. Try to login or register.
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Not really much help I can give for this mod.
The problem with PCM is likely what the player is sending between songs. I am not familiar with your particular player.
If the DSD signal is good, the DAC will lock on it.
On thing that may help is ensuring both ends of the teleporters are at the same ground potential. You can do this with a single wire to test. This is usually not required, but it's worth a shot.
Some people use shielded cat5 and terminate the shield to GND at both ends.
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Hi Russ,
What do you mean with: "Both ends of the teleporters should be on the same ground potential?"
I suppose you say the SE ground potentials should be the same? If so, I wil try it.
Concerning the DSD signal: I am almost sure the DSD signal is ok. Documentation of the SACD player says DSD bit clock is 64 x sampling frequency and from what I understand BIII will take it.
Before placing the teleporter and OttoII in My BIII, The I2S signal from WaveIO was perfectly stable. No unlocks at all. Now it seems that placing the Otto causes more instability in the I2S signal and it is very difficult to solve this.
Maybe someone in the BIII community has had the same problems?
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I mean ground between the two devices should be the same. :)
It usually is without needing to do anything.
For instance if you used a DMM and measured electrical GND (0V) you should little (few mv) or no voltage.
Is the PS keeping up with increased demand?
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