Marantz CD63 & CD67 mods list

[Malefoda]

Fine!
What are those coupling caps? MKT? Another DOS, another CFP?

[SimontY]

Looking good, you could go up to 800x600 or even 1024x768 - depending on compression level - and fit under the file size limit.

[shepperd]

more

[bikeral10]

Originally Posted by UV101

Nice one Alan!!! :-)

Must be time to think about those regs on the driver ic's now!!! Lol

There is a pic that it did with the service manual showing the traces a few posts back.

Also, as suggested, get the CPU on it's own 5v reg. The 340 will be fine here.

Also, definitely save and try an SPower for the dac analogue rails but be warned, once you are on the path, there is no going back!!!!

Thx for all your advice spot on .
big difference in the63 now.totally better player than the ki whats next?
thanks alan .

[Chivvyp]

Originally Posted by 6h5c

Dunno, the output should be the same as the opamp filter. I've simulated the DOS to give the same output. Are you sure you used the correct emitter resistors R7/R8? They should be 600 ohm with 1k5 for R3/R4.

A way to test this is to burn a 1kHz/0dB wave file to CD and measure the output amplitude. It should be 2Vrms or 5.6Vpp.

Ray

Hi,

I'm using 680 for R7/8 (nearest I could get) with 1K5 for R3/4. Maybe that explains it.

Regards
Pete

[Malefoda]

Originally Posted by shepperd

more

Shepp, don't you plan new mods? You really should change these Vishay MKT for top MKPs, you can flavor your sound with the help of such website:
Humble Homemade Hifi

also, if you don't have the CFP, you must get it. Don't stop now, you're close to the finish line!

[Fidelity Audio]

They are Vishay capacitors. Very very good caps for the money. If an upgrade is wanted there the cost of something like a Mundorf Supreme or better is expensive by comparison. I love the Silver/oil ones

Brent

[shepperd]

There's a limit! Money being one. I have sent the player 6 (?) times to Brent, from France to the UK. The time before it got pretty badly banged up in transport, so there's that to consider as well. Sometime this year I will cross my fingers and send it for the C2 clock and anything else that Brent thinks will be usefull. I think Mal. you were asking about the big caps? They are the Muldorfs that Brent has had made... "Si" on his site. If I were going to have a resistor change it would be for the Vishay S'foils, which are in my amp.
If someone wants a C1 clock, it will be up for grabs when I do the C2 change-over.
I'm making some final udjustments to the wooden cheeks and will post pictures when it's all back together and looking purdy. It may sound dumb but the cosmetic change seems to have a psychological effect on how I perceive the sound! I also added a lot of mass by glueing lead sheet to the bottom and the case is more ridged with the wooden cheeks (which are screwed on).

[Chivvyp]

Must be more to do, you can still see bits of the pcb in the pictures

[SimontY]

A C2, maybe some Supremes on the output along with that CFP upgrade??? Should be rather tasty.