Marantz CD63 & CD67 mods list

[Fidelity Audio]

Yeah seen this. Got it book marked.

I may go for the coax soon but I want to use smaller wire.

[awpagan]

Originally posted by rowemeister
Yeah seen this. Got it book marked.

I may go for the coax soon but I want to use smaller wire.

i'am disapointed your empty headphone socket

allan

[Fidelity Audio]

Originally posted by 6h5c
Hi Brent,

I don't know if silver will add anything there. It's mostly servo signals going though. I'd rather go for a shielded connection, like a piece of shielded ribbon. Maybe a separate coax for HF??

Any big sound-changes detected yet, with the blue LED's?

Ray.

Ray there is some little difference, I listened to it all last night with LEDs on. (switch being fitted today with cyan led's).

I will report with findings after weekend. I want to make sure I am right and not just believing it is better. If its worse I will say.

Everything sounded good last night though!!!!

I will get the wife to switch it on and off (without me knowing which position it is in) for the tests.

[poynton]

Originally posted by rowemeister
Yeah seen this. Got it book marked.

I may go for the coax soon but I want to use smaller wire.

Hi.

If you are replacing the ribbon, IMO the 2 crucial cables are the +5v supply and the HF signal. If you look at the routing, the +5v is at the end of a run with the uP also taking power - noisy!! Remember, most of the RF board is analog so this +5v should be from a clean source. Similarly, the routing of the HF signal leaves a lot to be desired and is a prime candidate for coax direct to R501. I suggested this earlier in the thread.

Andy

[awpagan]

I do like ray's earth point

been looking at the pcb layout to see if i can take the digital earth somewhere else
idea is use star earth on brass bar (main earth)
everthing earths to the bar.

allan

[poynton]

Originally posted by awpagan
I do like ray's earth point

been looking at the pcb layout to see if i can take the digital earth somewhere else
idea is use star earth on brass bar (main earth)
everthing earths to the bar.

allan

Hi.

Have I missed something or is it on the stuff Ray sent you?/

Andy

[Fidelity Audio]

I am not worried about the 5V rails as I am going to build a reg pcb for servo digital 5v , analogue 5v , HF & RF 5v.

I'll source some small coax for RF to HF also.

A star point earth sounds very good indeed.

[awpagan]

ray just added the pcb layout (component layout)
explains why he put his main earth near U221 analoge rca's

it was in one of his pictures

allan

[6h5c]

Originally posted by poynton
Seen This??

http://www.acoustica.org.uk/t/63/63hacks3.html

Andy

Yeah, I did! It scared me!

Ray.

[6h5c]

Originally posted by rowemeister
Ray there is some little difference, I listened to it all last night with LEDs on. (switch being fitted today with cyan led's).

I will report with findings after weekend. I want to make sure I am right and not just believing it is better. If its worse I will say.

Everything sounded good last night though!!!!

I will get the wife to switch it on and off (without me knowing which position it is in) for the tests.

Hi Brent,

Cool, i'm curious about the results.

Originally posted by awpagan
I do like ray's earth point

allan

Thanks Allan, i'm flattered !

Originally posted by poynton
Hi.
Have I missed something or is it on the stuff Ray sent you?/
Andy

Hi Andy,

I scanned the PCB-layout of the CD57/67 PCB. If you want it I can send you a new CD57_67_doc.pdf, just give me a PM.

Ray.