Masterclock help

fabus · 26th May 2010, 03:39 PM

Hello.
I have a masterclock by LC Audio Technology.
The frequency is 33.8688 MHz, which unfortunately is rarely used in CD player and DAC.
Perhaps the circuit is the same for each frequency and it may be possible
only replace the quartz mounted on board with that as often as I need here.
What do you think about?
Thanks,
Fabio

QSerraTico_Tico · 26th May 2010, 07:24 PM

Quote:

Originally Posted by fabus

Hello.
I have a masterclock by LC Audio Technology.
The frequency is 33.8688 MHz, which unfortunately is rarely used in CD player and DAC.
Perhaps the circuit is the same for each frequency and it may be possible
only replace the quartz mounted on board with that as often as I need here.
What do you think about?
Thanks,
Fabio

yes maybe the small caps at the oscillator need a small change.
The schematic of the LCAudio clock was posted on this forum by Lars Clausen himself some time ago.

fabus · 28th May 2010, 08:44 AM

Quote:

Originally Posted by QSerraTico_Tico

yes maybe the small caps at the oscillator need a small change.
The schematic of the LCAudio clock was posted on this forum by Lars Clausen himself some time ago.

Thank you for your help.
I spent an afternoon searching through the posts by Lars Clausen but I could not find what interested me.
Among other clock I have is the X03 model, full of
smd into a very small board .I hope that Lars or anyone will reads and send their views.
Thanks again,
Fabio

Bill Fuss · 28th May 2010, 12:17 PM

You could also easily add a divider circuit.

fabus · 28th May 2010, 01:26 PM

Thanks Bill, unfortunately, are not able to design it.
Initially I was hoping for a "remove and replace" but with some some advice suitable for a novice like me but I am ready to do so.
Thanks again.
Fabio.

Extreme_Boky · 29th May 2010, 11:19 AM

Here’s the circuit.... you should be able to replace the xtal without any other change.... make sure you choose the proper xtal

….
Boky

fabus · 29th May 2010, 01:05 PM

Hello, I'm very grateful.
I could not find anything.
I note that in the circuit you sent me the only value not specified is about quartz.
This may indicates that it is "universal."
Now I have to find a quality quartz ( on the X03 is 5ppm).
I'll let you know when it will mount.
Thanks again.
Fabio.

26th May 2010, 03:39 PM	#1
fabus diyAudio Member Join Date: Nov 2006	Masterclock help Hello. I have a masterclock by LC Audio Technology. The frequency is 33.8688 MHz, which unfortunately is rarely used in CD player and DAC. Perhaps the circuit is the same for each frequency and it may be possible only replace the quartz mounted on board with that as often as I need here. What do you think about? Thanks, Fabio

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28th May 2010, 12:17 PM	#4
Bill Fuss RIP Join Date: Oct 2005 Location: Central Florida	You could also easily add a divider circuit.

28th May 2010, 01:26 PM	#5
fabus diyAudio Member Join Date: Nov 2006	Thanks Bill, unfortunately, are not able to design it. Initially I was hoping for a "remove and replace" but with some some advice suitable for a novice like me but I am ready to do so. Thanks again. Fabio.

29th May 2010, 01:05 PM	#7
fabus diyAudio Member Join Date: Nov 2006	Hello, I'm very grateful. I could not find anything. I note that in the circuit you sent me the only value not specified is about quartz. This may indicates that it is "universal." Now I have to find a quality quartz ( on the X03 is 5ppm). I'll let you know when it will mount. Thanks again. Fabio.

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