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Old 5th May 2005, 10:26 PM   #1
guytou is offline guytou  France
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Default quartz displacement

hi everybody , I have a CDP YAMAHA CDX 810 and I would move the quartz from the decoder (YM3613)to the digital filter(actually a YM3433) I was thinking in tapping the xtal with his caps on the XO/XI of 3433,and therefore feed the XI entry of 3613B with XO of 3433 .
Am I right ,at your sense ? Do i have to buffer the XO from xtal ?
I use to have an old THOMSON LAD 440 and the clock from the 3433 was not bufferized, just a serie resistor and 1nf cap through
the CXD 1167Q .what' about the faisability of this mod ? thank's for your advises .
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Old 6th May 2005, 04:58 AM   #2
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Use a separate oscillator, powered by a low-noise supply, and feed it to both of them. Neither chip is satisfactory for an oscillator. There is simply too much stuff going on inside them that will have a detrimental effect when used as a oscillator.

Jocko
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Old 6th May 2005, 05:10 PM   #3
guytou is offline guytou  France
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Default quartz moved

thanks jocko ,in fact I moved the quartz on the filter and the difference is not huge . Do you know where i could get shemes of oscillators , i would build one .
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Old 6th May 2005, 05:22 PM   #4
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Default Re: quartz moved

Quote:
Originally posted by guytou
thanks jocko ,in fact I moved the quartz on the filter and the difference is not huge . Do you know where i could get shemes of oscillators , i would build one .

See here. http://www.diyaudio.com/forums/showt...6884#post76884
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Old 6th May 2005, 09:20 PM   #5
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Smile Re: Re: quartz moved

Quote:
Originally posted by rfbrw



See here. http://www.diyaudio.com/forums/showt...6884#post76884
Or here:
http://www.diyaudio.com/forums/showt...928#post199928

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Old 6th May 2005, 10:01 PM   #6
guytou is offline guytou  France
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Thanks to everybody for the infos .At this time , this stuff is well upon my knowledge , so i will let in stand-by some months .
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