Marantz CD63 & CD67 mods list

[RCruz]

No modifications required the opamps are a straight swap, I would however recommend shorting out the 4 feed resistors right next to the opamps. This seemd to give more punch to the bass.

Brent

Do you mean shorting RD22 RD26 24 28 21 23 25 27 ?

 

[RCruz]

Do you mean shorting RD22 RD26 24 28 21 23 25 27 ?

Sorry... bad joke...

Can you identify the resistor numbers for me ?

Regards

 

[Glenn2]

Do you mean shorting RD22 RD26 24 28 21 23 25 27 ?

He means R613, R614, R615, R616.

You can just bridge them with wire under the board to short them out. That way if you don't like the result it's easier to undo.

 

[Fidelity Audio]

Thanks Glen

Also while you are at it you may as well bypass the HDAM and dc blocking caps

Remove R651 652 653 654 C655 656 657 658 and U210 U214.

Then solder a wire from the opamp side of U210 to the output socket (R) and a wire from the opamp side of U214 to the output socket (L)

Brent

 

[ade.d]

hi,great thread.im a new member and have just aquired a cd63 ki of ebay.unfortunaly it didnt come with the box or cert.also it looks like the serial number labels have come off.apart from that its in great nick and sounds fine and seems unmolested.is there anyway i can confirm its a ki.
cheers ade.

 

[SimontY]

.is there anyway i can confirm its a ki.

Hi Ade,

Yep! The shiny gold K.I. Signature badge on the front panel is the clue!

And if you "pop the hood" the transformer is toroidal and the chassis is copper plated on the inside. Those are the only KI changes above SE spec.

Simon

 

[Fidelity Audio]

A KI SIG badge on the front, this can't be removed without leaving a blank rectangle on the front.
It should have a copper plarted chassis.
The text and boxes around the rear sockets is copper in colour too.
The model should say 74CD63/95B on the rear.

If you remove the lid it will have a Toroidal transformer

Brent

 

[SimontY]

Looks like I beat you to it!

 

[Fidelity Audio]

LOL Forum stalker.

Also the KI comes in a SE box with black KI tape to seal it (sorry for that useless info)

Brent

 

[ade.d]

thanx for the quick reply guys,it ticks all those boxes although the model no. says 80cd63/92b.not bad for £50 anyway lol.im on a mission to get the best ebay system available for least pennies.

 

[Fidelity Audio]

Ah yes sorry I forgot it starts with 80 on the KI.

I found a piccy of mine HERE

Brent

 

[SimontY]

I found a piccy of mine HERE

The blue glow is extra eh?

£50 is an amazing price for the KI, I paid £180!!

Simon

 

[Fidelity Audio]

LOL

I paid £50 for mine, not reading discs though. Shame I always have a stock of lasers hehe

I always watch KI on ebay and 90% of the time they go for £150 inc del

Brent

 

[RCruz]

He means R613, R614, R615, R616.

You can just bridge them with wire under the board to short them out. That way if you don't like the result it's easier to undo.

Also while you are at it you may as well bypass the HDAM and dc blocking caps

Remove R651 652 653 654 C655 656 657 658 and U210 U214.

Then solder a wire from the opamp side of U210 to the output socket (R) and a wire from the opamp side of U214 to the output socket (L)

Thank you Glen and Brent

Actually I do not have a HDAM because it´s a 53 SE model....

I only have a 10ohm ?? R620 between the two output caps 220uF and the opamp.

Should I remove it along with R657 658 659 620 ?
I already removed the muting trans... but did not remove the output caps.... afraid the ofset might affect my Meridian.

Regards

 

[Fidelity Audio]

Oh yes a 53. job done

Still go from the links U210 U214 to the output. Remove the 220uF caps also.

Brent

 

[6h5c]

Just one more question please Ray.

The link from your site to download the eps format of the clock pcb doesn't seem to work for me.

Don't think it's anything I'm doing as I got the CD outputstage eps fine - opened in Photoshop with no problems at all.
...
Jim

Hi Jim,

Try again, i've updated the file, it should be ok now.

Regards,

Ray

 

[RCruz]

Should I remove it along with R657 658 659 620 ?

Oh yes a 53. job done

Still go from the links U210 U214 to the output. Remove the 220uF caps also.

Hi Brent

Should I remove all the resistors in the output R657 658 659 620 ?

Thank you in advance for your help.

 

[RCruz]

Hi Brent

Should I remove all the resistors in the output R657 658 659 620 ?

Thank you in advance for your help.

Can not identify U210 and not sure about U214.... can you place me in the schematics ?

Regards

 

[jimh0612]

Hi Ray

Have tried again but same problem.

Has anyone else had this problem?

Am using Photoshop 6.

As an alternative could you try emailing me please?

You may still have the address from when I emailed about the Rayregs but just in case am emailing you again.

Regards

Jim

 

[6h5c]

Hm, strange. I'm using CorelDraw, no problems here. I noticed the old file was placed outside the A4 paper border, but that's solved now.
Drop me a mail, I don't have your address anymore.

Ray