Marantz CD63 & CD67 mods list

[shepperd]

An ominous silence has fallen over the land. We who lurk are gasping for air on an arid plain. Maybe we should go back to the beginning and start all over?

 

[RCruz]

Maybe that is a godd idea.....

I would like to do it all over again but I am afraid if I desolder everything, I will be elected as the major pad lifter on earth

 

[poynton]

Keep going, lads!

We're nearly at 15,000


.

 

[audio_tony]

I bought a CD63 recently - but can't decide whether to mod it or scrap it.

I have a CD17 which uses the same transport (CDM12.1), so it may come in handy for spares....

I'm certainly not that impressed with the player in stock form.

 

[RCruz]

If you decide to scrap it.... please PM me and I will forward you my address..... I will even pay for the shipping costs

 

[audio_tony]

If you decide to scrap it.... please PM me and I will forward you my address..... I will even pay for the shipping costs

Really? There always seems to be a few on Ebay!

 

[SimontY]

If I were you I'd mod the CD17. Yes, a CD63 can be taken a long way beyond a standard or lightly modified CD17 but still, a 17 sounds quite good as standard IMO.

 

[shepperd]

good chaps

 

[audio_tony]

If I were you I'd mod the CD17. Yes, a CD63 can be taken a long way beyond a standard or lightly modified CD17 but still, a 17 sounds quite good as standard IMO.

I have already heavily modded the CD17

Bigger PSU caps.

Oscons in the right places

Bypassed the HDAM modules

Removed muting transistors

Changed output coupling caps (yes I realise I could omit those but I was reluctant to do so)

Next step is to replace the NJM2114s - but I need to pluck up the courage to remove them (they are surface mounted). It would be nice if I could find an adapter to change the surface mount to a standard DIP socket.
I may try and solder a socket in - but I think it might lift the tracks....

 

[6h5c]

Keep going, lads!

We're nearly at 15,000.

Oh, gotta keep paying attention now, I wouldn't want to miss that one!

Ray

 

[RCruz]

Just to get your attention and a little off topic, did anyone have a go with the PIKATRON stepup TX ?

 

[6h5c]

Tony, maybe this is useful for you. I used them on my ezDAC PCB to do some opamp-rolling.

Ray

 

[audio_tony]

Tony, maybe this is useful for you. I used them on my ezDAC PCB to do some opamp-rolling.

Ray

Very useful indeed.

Thanks!

 

[RCruz]

Also way off topic..... Look where I have been last weekend : Welkom op Audiopaul.nl! - De audiofiele website met setbeschrijving, muziek, reviews en meer.

 

[RCruz]

And now, for those that did not see my last mod, here is the DOS output bypass:

 

[shepperd]

you win the prize for "no more room in there"!

 

[RCruz]

Yes... that is why I stoped modding.

I stoped before I could regulate the drivers, do the coax mod, regulate the transport section, replace the cap before the main +5reg by a bigger one...

Now I am colecting inspiration before I do the DOS revamp

 

[audio_tony]

Have you considered moving some bits to an external box?

Like Naim do for instance?

You could seperate your power supplies perhaps...

 

[RCruz]

It is quite complex because I have 6 TX inside, feeding 9 separated PSU.

Of course it could be done but it would mean a LOT of work and probably a lot of tears.... This old PCB is already too much reworked.

I would like to start over from the beginning using a fresh untouched "pacient" ....
Knowing what I know today, I would do first things first

 

[RCruz]

here is and overview before implementing the output caps bypass