Clock Generator for Cambridge Audio DISCMAGIC1/CDT - Adjustment Instruction for VR1 ? - Page 2 - diyAudio
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Old 19th June 2011, 07:18 PM   #11
amc184 is offline amc184  New Zealand
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Two of us have already said that you should adjust VR1 so that the output wave from the 74HC04 has a 50% duty cycle. Why are you still asking the answer to this?

Most discrete crystal oscillators will have some sort of adjustment like this between itself and the wave shaping stage that follows it. There is nothing really unusual about this design. The ones you have linked to (apart from the LC Audio) aren't discrete crystal oscillators. Look harder and you will find more.
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Old 6th February 2013, 12:55 AM   #12
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Originally Posted by amc184 View Post
Two of us have already said that you should adjust VR1 so that the output wave from the 74HC04 has a 50% duty cycle. Why are you still asking the answer to this?

Most discrete crystal oscillators will have some sort of adjustment like this between itself and the wave shaping stage that follows it. There is nothing really unusual about this design. The ones you have linked to (apart from the LC Audio) aren't discrete crystal oscillators. Look harder and you will find more.
Hi there Anton,do you want to have ago at fixing my Discmagic 1 CD.the processor is fried.not sure if there is an ulturnitve, as getting a replacment board is next to impos.
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Old 6th February 2013, 05:59 AM   #13
amc184 is offline amc184  New Zealand
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If it's the player I'm thing of, probably not. I might be able to give you some help though, send me a PM about it.
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Old 11th February 2013, 07:17 AM   #14
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If it's the player I'm thing of, probably not. I might be able to give you some help though, send me a PM about it.
no pannick,im on another mission,cheers anyway.however if you come accross any wharfedale dovedale 3 speakers or parts im looking.thanks colin

Last edited by lister40; 11th February 2013 at 07:19 AM. Reason: adding
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