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12th February 2008, 02:37 PM
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#1 |
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diyAudio Member
Join Date: Apr 2007
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CS8414 spdif problem
Hello!
I built this mini dac http://www.jogis-roehrenbude.de/Lese...Projekt/CD.htm But I change the spdif reciver with the CS8414. I read many times, this is compatible with mini dac. I've change the filter 470ohm 0.068uF (CS8412=1K 0.047uF). When I push play no sound.... At this moment I' haven't a scope but I check the tension. Pin 28 4.6v (I must be zero when lock spdif) Pin 26 1.3v Pin 11 4.6v Pin 7,22,24 5v Pin 14,8,21,17,18,23 GND Any idea? |
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14th February 2008, 11:15 AM
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#3 |
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diyAudio Member
Join Date: Apr 2007
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I solve the problem!
The digital out on the back of cdrom unit, is spdif in ttl format. I remove R1 (75omh) in input interface, R1 in needed only with coax cable (cdplayer). But I've an another problem....I bought 3 CS8414 on futurlec. Only one works, possible other 2 have failure. In the attach file not work. Thank you. |
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14th February 2008, 04:40 PM
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#4 |
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diyAudio Moderator
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I see what appear to be a couple of unsoldered pins on your adaptor board - pins 15 and 28 specifically, and there are probably others.
__________________
"Extraordinary claims require extraordinary evidence." - Carl Sagan |
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14th February 2008, 06:26 PM
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#6 |
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diyAudio Moderator
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That code is the manufacturer code and should tell you where it was packaged and when. If you go the Crystal website it may tell you how to read those codes.
It really does look like some pins are not soldered properly on both of those adaptors and I would address that issue first. Actually putting spdif receiver chips on carriers like that may not be a wonderful idea, and I bet there is no supply decoupling on that adaptor either, despite the obviously long trace lengths.
__________________
"Extraordinary claims require extraordinary evidence." - Carl Sagan |
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16th February 2008, 10:58 AM
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#8 |
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diyAudio Member
Join Date: Dec 2007
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to Kevinkr, Archwer and others
If so, could you please advice about using the CS8414 with an adaptor, for example - instead of Yamaha YM3623b? Please see the attached picture: This one is meant to do exactly this (replacing the YM3623). It is configured to 24 bit Input/Output. Should this be OK? Many thanks! |
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16th February 2008, 11:09 AM
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#9 | |
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diyAudio Member
Join Date: Aug 2002
Location: Sofia
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Quote:
Dammit, spilled coffee all over myself. It's plain irresponsible to insert such a gem into this boring thread. |
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16th February 2008, 11:18 AM
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#10 |
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diyAudio Member
Join Date: Dec 2007
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Sorry about the coffee! And how about ansering the question ?
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