Marantz CD63 & CD67 mods list

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#1,962
6h5c said:

Do you know what power supply this clock needs? If it's 12V, you can tap power in the player from C813, there's about 11VDC there, should work fine. You can connect the clock's + to U268 (the plus of C813), and the GND to U267 (the minus of C813). See picture. But the best solution is to use a separate power supply with a small PCB transformer and a regulator.
You can connect the clock's output signal to the player by removing CD02, CD03, XD01, RD02 and U209. Connect the output of the clock to the hole of U209 that's next to CD05.
If you drop me an e-mail I can send you the CD67 schematics if you like. That might enlighten things a bit.



No problem! Glad to be of help.

Regards,

Ray.
Click to expand...

I get why cd02, cd03, xd01 should be removed. But why should rd02 and u209 be removed?

I'm installing a tent xo tonight and the tentlabs instructions do not talk about removing these parts. So therefor my question on this.
 
#1,963
gy21 said:


I get why cd02, cd03, xd01 should be removed. But why should rd02 and u209 be removed?

I'm installing a tent xo tonight and the tentlabs instructions do not talk about removing these parts. So therefor my question on this.
Click to expand...

HI.

U209 does not really need to be removed but if not, it acts as an antenna !
RD02 is not actually required at all. The internal inverter already has a resistor built-in which performs the same function ie. it biases the inverter into linear mode so it acts as an amplifier. It is more 'belt and braces' than functional !

Andy
 
#1,964
FET output stage

Finally the parts I ordered arrived yesterday, so I could finish the player with the FET-stage i'm working on.
I built a new, serious version of the passive filter part, with 1% PS caps, precision resistors and matched inductors. I've just spent an hour listening to it. Wow. Guys, you really should try this.
The clarity, resolution, it's great. It beats the hell out of my opamp setup. :yes:
 

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#1,970
SimontY said:
Nice one Ray!

Why don't they make them like that to begin with? :whazzat:

The part count looks low.

Simon
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awpagan said:
ray
very clean and professional looking work😀

allan
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Thanks guys,

The filter part is very easy. Building the FET-stage using the HDAM lay-out is a bit tricky.
But it fits without cutting any traces 😀.
I use some MKC output caps that I had, but I think i'm going to put in some Auricaps, or Reliable.

Maybe i'm even going to put those nice shiny metal cans back....

Ray.
 

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#1,973
Hi Dave,

What voltage(s) does your clock need? At C803/804 you'll find close to +/-24V depending on their size, after Q801/802 it's +/-12V. I wouldn't recommend tapping it from there, since that is the analog supply, but it will do no harm, it's temporary. If the clock needs only a single supply you can tap it from C813, it's around 12V there.

Regards,

Ray.
Click to expand...

Hi Ray it needs both +12v/-12v can be as high as 15vdc


Thanks Dave
 
#1,974
6h5c said:




Thanks guys,

The filter part is very easy. Building the FET-stage using the HDAM lay-out is a bit tricky.
But it fits without cutting any traces 😀.
I use some MKC output caps that I had, but I think i'm going to put in some Auricaps, or Reliable.

Maybe i'm even going to put those nice shiny metal cans back....

Ray.
Click to expand...


i'm using wima MKC4 4.7uF out.
was thinking of solen.

allan
 
#1,976
awpagan said:
simple plug in replacement
i like them😀

the regs arn't to bad.

try giving the regs a clean earth point.

allan
Click to expand...

Yeah, the are not that bad 😀
But I want to try the Tentlabs shunt regulators in the near future, see if that changes things even more positive.

After my output-stage fever has cooled down i'm going to take a look at the ground plane/star point stuff.

Ray.
 
#1,979
rowemeister said:
Not quite as exciting as Rays discrete output but I thought I would keep people informed of my latest advantures.

Here is a pic of my Servo , RF and HF reg pcb thats going to replace the existing one.

Ive used Schottky diodes and silmic caps with audiocom super regs.
Click to expand...

Is that what Warren G meant by Regulate, as in "regulatoooors, mount up.."?

You think Warren G and Nate Dog considered Audiocom regs?

:hot: :headshot:
 
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