Finally, an affordable CD Transport: the Shigaclone story - Page 622 - diyAudio
Go Back   Home > Forums > Source & Line > Digital Source

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

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 19th August 2012, 08:46 PM   #6211
tvicol is online now tvicol  Romania
diyAudio Member
 
tvicol's Avatar
 
Join Date: Jan 2005
Location: Bucharest
Send a message via Yahoo to tvicol Send a message via Skype™ to tvicol
This is how the remote may look.
A single side PCB with all components on the copper side.

Regards,
Tibi
Attached Images
File Type: png Shiga remote2_19082012.png (163.9 KB, 527 views)
  Reply With Quote
Old 19th August 2012, 08:57 PM   #6212
diyAudio Member
 
uncle_leon's Avatar
 
Join Date: Jun 2007
Location: Czyżeminek, near Łdź
Quote:
Originally Posted by tvicol View Post
...

The great news it that we were able to source a large batch of LC78601RE, maybe the last ones. :-)

Regards,
Tibi
That is splendid news indeed! The Shigaclone project evaded demise once more thanks to your efforts
__________________
Studio Zy - natural, hand-crafted components for hi-end audio.
"Dare to be different, and you may stumble upon something amazing."
  Reply With Quote
Old 23rd August 2012, 02:31 PM   #6213
tvicol is online now tvicol  Romania
diyAudio Member
 
tvicol's Avatar
 
Join Date: Jan 2005
Location: Bucharest
Send a message via Yahoo to tvicol Send a message via Skype™ to tvicol
Short update to project status.
Today we have received the trafos.
We expect to have LCD displays delivered on 28. August
Well receive Shiga PCB boards on 31. August.
Remote IR boards are also in production and I expect to have them around 31. August as well.

As soon we get PCB boards well start shipping for DIY and Full Shiga Kits.
Ready mounted and tested will take off in the first week of September.

Thank you for your patience and understanding.

Regards,
Tibi

Last edited by tvicol; 23rd August 2012 at 02:33 PM.
  Reply With Quote
Old 23rd August 2012, 11:29 PM   #6214
yoaudio is offline yoaudio  United States
diyAudio Member
 
yoaudio's Avatar
 
Join Date: Oct 2010
Location: Northern Michigan
Thanks Tibi for the update, we appreciate all your hard work.

Last edited by yoaudio; 23rd August 2012 at 11:37 PM.
  Reply With Quote
Old 24th August 2012, 04:27 PM   #6215
diyAudio Member
 
Join Date: Apr 2010
Tibi,
A question about the 5v circuit.
If I use a separate regulator for the 5v circuit and power it with batteries, leaving the 8v circuit (reg) to be powered by a mains transformer, couldn't that introduce some grounding issues? Do you think it would be better to leave both circuits powered by the same battery supply?
  Reply With Quote
Old 25th August 2012, 01:44 AM   #6216
sigurd is offline sigurd  Belgium
diyAudio Member
 
Join Date: Jan 2007
Location: belgium
Hi all,
Please, I want to know if the output impedance on the DIGITAL out is about 235 Ohm? That's for calculate an ideal T-pad resistor circuit : attenuator about -10 dB and 75 Ohm output.

Thanks.
  Reply With Quote
Old 25th August 2012, 01:57 AM   #6217
sigurd is offline sigurd  Belgium
diyAudio Member
 
Join Date: Jan 2007
Location: belgium
Because the output impedance have a hudge influence on the soundstage 'picture' and 'linearity' , specific of character of sound on solo instruments...!
  Reply With Quote
Old 25th August 2012, 03:51 AM   #6218
sigurd is offline sigurd  Belgium
diyAudio Member
 
Join Date: Jan 2007
Location: belgium
I have really very good results with (after surching with all kind of possibility's ): 6K8 parrallel on direct ouput , 200 Ohm in series to output and 90 Ohm parallel to output : to now that's the best result I have , really nice !
But maybe that would be better ?
Some experiences ?
  Reply With Quote
Old 25th August 2012, 03:54 AM   #6219
sigurd is offline sigurd  Belgium
diyAudio Member
 
Join Date: Jan 2007
Location: belgium
6k8 to ground, 200 Ohm in series, 90 Ohm to ground : T section
  Reply With Quote
Old 25th August 2012, 10:24 AM   #6220
diyAudio Member
 
uncle_leon's Avatar
 
Join Date: Jun 2007
Location: Czyżeminek, near Łdź
These are some interesting comments you make sigurd, but I am a bit confused as to what actual resistor layout you are using - could you draw a schematic for us, or take a picture? You are saying you have two resistors to the ground + one series, but this sounds like a Pi-pad, not a T-pad?... I'm not nitpicking, just trying to making sure I understand you correctly.

The datasheet for LC78601 doesn't state this, but the digital output impedance is most likely 75Ohm, as per S/PDIF standard. Did you try the 75Ohm Pi-pad I suggested earlier? I built one with my hand-made resistors (which were accurate to +/-0.1R), and I found it to sound far superior to the original L-pad (the detail and resolution took a leap, in particular). I have not tried any further combinations because I assumed 75Ohm should be optimal... But of course, I will be the first to admit that in the audio world theory and practise are often two different stories.
__________________
Studio Zy - natural, hand-crafted components for hi-end audio.
"Dare to be different, and you may stumble upon something amazing."
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



New To Site? Need Help?

All times are GMT. The time now is 04:33 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2