Marantz CD63 & CD67 mods list - Page 1862 - diyAudio
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Old 20th October 2012, 06:35 PM   #18611
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OK, I can try to do that now that the original transformer is out.
I suspect it's a ground loop somewhere though but I've go no idea how to track that down.
From memory there's one unmarked connector to the output section ground that must've had a ground wire go to it from the original KI TX. I'll try to get a diagram.
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Old 21st October 2012, 03:42 AM   #18612
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@higlander - just saw the pic of your PSU mounting - really nice work!!

Should I have anything connected to this?

Click the image to open in full size.
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Old 21st October 2012, 08:31 AM   #18613
lrocha is offline lrocha  Portugal
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Hello Ray.

Could you perform the mods for Marantz CD65II-SE for Non-DIYers like myself? If so, what sort of cost would that involve? I live in Portugal, BTW.

Cheers,

Leonel
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Old 21st October 2012, 08:56 AM   #18614
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I just noticed that my servo clock's LED wasn't working any more, and when I touched the XO oscillator it was hot! I measured voltage across it and it's getting 10v instead of 5v! I've no idea how long it's been like that.
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Old 21st October 2012, 09:23 AM   #18615
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Quote:
Originally Posted by Ben Hanke View Post
@higlander - just saw the pic of your PSU mounting - really nice work!!

Should I have anything connected to this?

Click the image to open in full size.
NO, I don't think so. Just leave as it is.
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Old 21st October 2012, 01:55 PM   #18616
6h5c is offline 6h5c  Netherlands
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Quote:
Originally Posted by lrocha View Post
Hello Ray.

Could you perform the mods for Marantz CD65II-SE for Non-DIYers like myself? If so, what sort of cost would that involve? I live in Portugal, BTW.

Cheers,

Leonel
Hi Leonel,

I guess you have no soldering experience whatsoever? Otherwise you could open a new thread and we can help you out on-line. Shipping alone would cost you about € 60,- here and back, you can buy a lot of parts for that!

Regards,

Ray
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Old 21st October 2012, 02:48 PM   #18617
UV101 is offline UV101  England
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Quote:
Originally Posted by Ben Hanke View Post
@higlander - just saw the pic of your PSU mounting - really nice work!!

Should I have anything connected to this?

Click the image to open in full size.
That's a gnd Ben. In the non KI the centre tap of the windings for the audio psu is internally connected, but you could utilise it if you run a separate tx.
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Old 21st October 2012, 03:07 PM   #18618
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Hi All,
Now player sounds so good after few component swapping. I like to go for DoS swapping in place of opamp? Can any user able to comment on it, how it sounds when compare to opamp and DoS?

Thanks
Badri
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Old 21st October 2012, 07:42 PM   #18619
UV101 is offline UV101  England
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I'd start with some other mods 1st. You should swap the local psu caps and fit Opamp sockets so you can roll some different opamps.
You should consider trying LME47920 decoupled with some 470uF Rubycon ZLH. If you've not done it yet, there are a few psu caps that you should swap 1st.
The DOS is very very good especially when used with high quality PSU regulation.
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Old 22nd October 2012, 06:45 AM   #18620
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Hey guys, I've built my first separate PSU for the DAC analogue supplies using a 7VA transformer (2 secondaries @ 3.5VA), some Schottkys and some mondo smoothers. Here I go with another noob question: What do I do with the ground? Anything different? Do the ground pins become separate or the same ground as the rest of the player? I only just realized how clueless I am about this part.
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