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Marantz CD63 & CD67 mods list
Marantz CD63 & CD67 mods list
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Old 10th January 2009, 08:56 AM   #11511
ian21 is offline ian21  England
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Default 4562

Quote:
Originally posted by Thomo
Just a quick 'un, to say that I heard those LM4562HA's and was very surprised by the difference over the standard 4562's.

A much more pleasant and cohesive sound. Noticeable improvements in the treble and bass in particular, with more air around the instruments.

Cheers, Lee.

Hi Lee,
Had a look at nat semi's site.. am i right in thinking that the HA's are in the TO99 metal can package only? shame they have no samples.
Regards Ian

Edit.. just saw Brents site.. i guess they are
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Old 10th January 2009, 11:18 AM   #11512
RCruz is offline RCruz  Switzerland
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Marantz CD63 & CD67 mods list
Quote:
Originally posted by bigerik

Thanks for the clarification, Brent?
Do you still recommend doing them in the order listed?
Hi Erik

You can follow that order but IMO you do not need the Audiocom parts to reach spectacular results.

My CD53 is almost "full on", I am preparing one of the final mods (coax mod) but the sound is so good as is that I am postponing the action for now.

To reach this quality I followed this order :
Replace psu diodes by 11DQ10 schottkys or similar.
Replace the stock +5v 7805 for a LM340AT.
Clean all the +5v on every chip using good decoupling caps and coils (Follow Ray´s list on first page)

Put good quality parts on digital line between HF amp and decoder C505 (Polystyrene) R509 (precision metal resistor).

Replace opamps (LM4562) and hard wire them to the output directly (no caps or resistors in signal line)

Place some good regs near the opamps (Remove R613 614 615 616 and place the regs there. Use these : http://www.audioupgrades.co.uk/regs.shtml)

You must consider building a dedicated psu for the opamps using hexfred diodes.

Place another Spower in DAC analog.

By now the player is singing.

After that I placed regs on the servo chip (much more detail)

Than came the clocks from Sercal... major improvement in every aspect.

Finally I placed regs on the decoder (fluidity... cohesion... timing)

By this time the opamps did not seem to handle all the info so I installed a DOS... (maybe you do not need it if you try the new metal can opamps...)

Good modding



Ricardo
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Old 10th January 2009, 02:40 PM   #11513
Malefoda is offline Malefoda  France
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Default Back :)

Here I'm back...
I know I'll was foolish to think I can go with my discs on my computer... OMG!

So on the base of my Aura VA100 integrated amp and a pair of B&W DM4 I'm looking for a CDP.
The kind with a normal sound with great potential, e.g. CD53 wich already goes better with LM4562...HA?
If any of you knows a bargain or a "ideal taregt" then I'll be chasing the Net and the real world for these... CD63/67 lines are on my way, maybe other like CD50 ?

Any advice is good to me!
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Old 11th January 2009, 08:21 AM   #11514
quan is offline quan  Australia
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Question marants 63SE

Hi guys, running into trouble again and need help??
i hard-wired the ribbon connector now the cdp refuses to work
checking service mode -error 10-radial off as per manual.
where do i go from here?
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Old 11th January 2009, 11:35 AM   #11515
Chivvyp is offline Chivvyp  United Kingdom
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Quote:
Originally posted by rowemeister
1) Also for the opamp we have been trying the LME49720HA (LM4562HA) and it is much better than the standard LM4562NA. More dynamic, smoother mids and a better treble. They have the character of a DOS circuit.

Brent
Hi, can these just be slotted in the adaptors or do they need to be soldered into the pcb?

Regards

Pete
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Old 11th January 2009, 11:36 AM   #11516
Chivvyp is offline Chivvyp  United Kingdom
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Default Re: Back :)

Quote:
Originally posted by Malefoda
Here I'm back...
I know I'll was foolish to think I can go with my discs on my computer... OMG!

So on the base of my Aura VA100 integrated amp and a pair of B&W DM4 I'm looking for a CDP.
The kind with a normal sound with great potential, e.g. CD53 wich already goes better with LM4562...HA?
If any of you knows a bargain or a "ideal taregt" then I'll be chasing the Net and the real world for these... CD63/67 lines are on my way, maybe other like CD50 ?

Any advice is good to me!
Hi,

You could look at a USB DAC between your PC and amp. That will give great improvements over a direct output from PC to amp.

Regards

Pete
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Old 12th January 2009, 12:06 PM   #11517
Fidelity Audio is offline Fidelity Audio  England
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Quote:
Originally posted by Chivvyp


Hi, can these just be slotted in the adaptors or do they need to be soldered into the pcb?

Regards

Pete
Hi

You can do either, I have them on sockets to test and compare. The tab on the can is pin 8 btw.

Brent
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Old 12th January 2009, 08:37 PM   #11518
quan is offline quan  Australia
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Default marantz 63SE

Hi Brent, after hard-wiring the ribbon- now the machine won't read the disc- error 10-it shows-
Please help and advise what to check for next. Thanks
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Old 13th January 2009, 07:26 AM   #11519
Fidelity Audio is offline Fidelity Audio  England
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Hi

Can you send a pic of the wiring and we can try to check if there is an error there. Also check the pads under the pcb where you have soldered.

Also what does the disc try to do? does it spin but not read, spin backwards etc

Brent
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Old 13th January 2009, 05:43 PM   #11520
avr300 is offline avr300  Denmark
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Default Re: Back :)

Quote:
Originally posted by Malefoda
Here I'm back...
I know I'll was foolish to think I can go with my discs on my computer... OMG!

So on the base of my Aura VA100 integrated amp and a pair of B&W DM4 I'm looking for a CDP.
The kind with a normal sound with great potential, e.g. CD53 wich already goes better with LM4562...HA?
If any of you knows a bargain or a "ideal taregt" then I'll be chasing the Net and the real world for these... CD63/67 lines are on my way, maybe other like CD50 ?

Any advice is good to me!
This advice is off topic, but we are here to help.

Do consider network based streaming into a good DAC. A Squeezebox and a ESS Sabre DAC are making a lot of "noise" here.

http://www.diyaudio.com/forums/showt...hreadid=128137
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