How to make a digital input for Sony XA7ES Superplayer? - diyAudio
Go Back   Home > Forums > Source & Line > Digital Source
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

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
Thread Tools Search this Thread
Old 2nd May 2014, 06:16 PM   #1
diyAudio Member
Join Date: Sep 2009
Lightbulb How to make a digital input for Sony XA7ES Superplayer?

due to wrong post I refereshed below

Last edited by ideainnova; 3rd May 2014 at 11:55 AM.
  Reply With Quote
Old 2nd May 2014, 09:28 PM   #2
diyAudio Member
Join Date: Sep 2009
It has one of the most musical, most analog sounding DAC avaliable in history. I want to use its DAC for my pc based archive. My idea is to backup all of my analog media to pc after getting a similar quality ADC. Then I will be able to enjoy my media without giving less disturbance to my valuable(unavaliable spare parts) analog gears and cartridges. And this will give much more life to my xa7es player after it looses its laser diod.

the service manual is here:
SONY CDP-XA7ES Service Manual free download, schematics, eeprom, repair info for electronics

There are some kits getting spdif input and converting it to signals, such as:
S/PDIF 4:1 Receiver/MUX Module

I currently dont have enogh knowledge about what kind of signaling system xa7es uses, I could not find datasheets of its current pulse dac chips. It does not have just the same pin labels as spdif reciever kits produces to switch between internal and kit signaling. There maybe some servo signals also that needs to be activated to run as standalone dac. If succeeded, this will apply to almost all perfect x and xa lines of sony players and many units with defective laser diod that sells for for 100-200$ will gain life as better than perfect standalone dacs.

I added the path from servo to pulse dac system through B connector. IC601 gets data. If BCLK, LRCLK and DATA pins to IC601 are correct ones to switch between these internals and the ones from spdif receiver kit, then how to use the MCLK here with spdif receiver? Will I connect MCLK out of IC601 also to spdif kit to make it run? Only 3 pins to switch between standalone player and standalone dac?

Thank you so much,
Attached Images
File Type: gif digital_path.gif (286.1 KB, 174 views)
  Reply With Quote
Old 3rd May 2014, 07:02 PM   #3
diyAudio Member
Join Date: Sep 2009
I will buy this kit because it obviously supports both i2s and eiaj undoubtly, giving 16bit right justified:
Wolfson WM8804 SPDIF Module Support 16/24Bit I2S Left/Right Justified

So is connections between kit and xa7es this way?

tekdevice xa7es
GND <----> GND
DATA -----> input to IC601 through DATA4 line
BCK -----> input to IC601 through BLCK3 line
LRCK -----> input to IC601 through LRCK5 line
I dont know how to connect the MCLK lines and any other lines for this player to run as DAC correctly.
  Reply With Quote
Old 18th May 2014, 01:39 PM   #4
diyAudio Member
Join Date: Sep 2009
According to oscilloscope signals on its digital input chip, xa7es has:
BCK : 2,1168x mhz
LRCLK : 44,100x khz
DATA : 24 bit right justified but msb extends to 24th bit from somewhere I think either from 16th or 18th bit, signals are somewhat in sawtooth form to analyse correctly.

So this sony looks to have a form of eiaj standard. eiaj looks to have 18 bit data where msb extends to either 20 or 24th bit. I dont eaxactly know if xa7 uses 16 or 18bit eaij format in its 24 bit pack dat ato digital filter chip.

Anyone experienced on sony cd players? it looks usb to eiaj monica kit is the only practical way without constructing a suitable kit. However it is for a tda1545 dac rather than sony eiaj, I dont know if monica still suits:
Monica SPDIF-EIAJ module - SGD130.00 : Welcome to the diyparadise e-store!

Monica does USB!

wolfson 8804 does not have 24 bit right justified.

the person explains sony format beside others and looks xa7 uses just this:

Now from pc soudn card (16bit 44.1khz throgh spdif), to a i2s receiver that outputs 16bit right justified i2s, will now monica transform it to 24 bit sony eiaj from 16bit i2s input? or any kit or receiver uses exactly same amount of bit at input and output without filling teh blank bit periods as MSB?
  Reply With Quote
Old 27th October 2015, 03:48 PM   #5
diyAudio Member
Join Date: Sep 2005
anything new to the cdp xa7 DAC outside world access subject...?
regards, Philipp
  Reply With Quote
Old 27th October 2015, 08:46 PM   #6
diyAudio Member
Join Date: Sep 2009
Hi Philipp,
Because it was necessary to construct a sony eiaj specific kit rather than consuming time trying any result with available kits, I paused searching and I have never found spare time then. You even reminded me.
  Reply With Quote


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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Sony CDP-X5000 / CDP-XA7ES / CDP-XA50ES Mechanics Maintenance / VFD Modification Salar Digital Source 5 27th February 2014 06:59 PM
Rotel Rcd 955 digital out can be a digital input ? srinath Digital Line Level 4 17th January 2014 02:07 AM
Digital Crossover/DSP for active speaker with analog and digital input? Guitarfreak Digital Line Level 4 16th July 2013 06:46 AM
upgrade a Sony CDP XA7Es / two clock problem in Sony players invisible force Digital Source 16 24th May 2013 03:31 PM
Digital Input For Sony Cdp-701es £¿ welkinsa Digital Source 0 20th February 2006 10:12 AM

New To Site? Need Help?

All times are GMT. The time now is 02:47 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2