Marantz CD63 & CD67 mods list - Page 1843 - diyAudio
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Old 15th September 2012, 03:11 PM   #18421
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I think its 1/4watt. Can anyone confirm that? I am planning to some good components to swap. I am going to use BG STD 220uf 16v in opamp, DAC and 2 BG STD 1000uf may be in power supply and one BG STD 4700uf 16v also in power supply. Between how many silver mica's I have to use totally and what are positions? I have Mundorf 4700uf 40V and 3300uf 63V in hand. Can I use it in power supply?

Thanks
Badri
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Old 16th September 2012, 09:52 AM   #18422
Puffin is offline Puffin  United Kingdom
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Quote:
Originally Posted by Puffin View Post
Is grounding the crystal a worthwhile tweak to do, or only if you do the other mods suggested by Acoustica?

acoustica.org.uk: modifying the Marantz CD63, part 1
I have grounded the crystal and it seems to be a worthwhile mod. I may now do the other mods associated with the crystal.
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Old 16th September 2012, 05:23 PM   #18423
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Hi everyone,
I am new to this forum and have read with interest on modding the CD63.
I have follow some of the suggestions from this forum and made certain modifications to my CD63 which are so far successful.
Recently I tried to supply the servo controller Q104 with two 5V regulated supply. I lifted R122 and R123 and fed a 5V supply to them. Unfortunately the CD drive did not read the table of content of the CD. Is there something I have missed out ?
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Old 16th September 2012, 05:43 PM   #18424
Puffin is offline Puffin  United Kingdom
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R122 & 123 are 4.7ohm resistors. If you connect your new regulated supply to the wrong side of the resistor you have removed, you will get the result you have. If you connect to the other side it should be ok.

This is my experience anyway.
Rob.
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Old 16th September 2012, 06:23 PM   #18425
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Quote:
Originally Posted by Puffin View Post
R122 & 123 are 4.7ohm resistors. If you connect your new regulated supply to the wrong side of the resistor you have removed, you will get the result you have. If you connect to the other side it should be ok.

This is my experience anyway.
Rob.
Thanks Rob but I am sure I have connected the supply to the right side
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Old 16th September 2012, 07:35 PM   #18426
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Quote:
Originally Posted by Bigvoice View Post
Thanks Rob but I am sure I have connected the supply to the right side
I forgot to mention that the two supplies are not independent and only one 5V voltage regulator is used.
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Old 19th September 2012, 06:24 AM   #18427
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For D801-D804, D811-D814, D851/854 and DN01/02 Can this http://www.partsconnexion.com/product1289.html diode be used?

Thanks
Badri
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Old 19th September 2012, 01:59 PM   #18428
Puffin is offline Puffin  United Kingdom
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Quote:
Originally Posted by Bigvoice View Post
Thanks Rob but I am sure I have connected the supply to the right side
Have you fixed it?
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Old 19th September 2012, 05:02 PM   #18429
Puffin is offline Puffin  United Kingdom
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I added a JLH Ripple Eater to the circuit I have created for the voltage regulators. Not sure what it is doing at the moment, but it doesn't sound any worse!. Adds a further 4,400uf of capacitance, which can't be bad.

If you have not heard of these - details below

Rock Grotto JLH Ripple Eaters

I bought bare boards for 3 each

http://www.gt6.co.uk/JLHPSRR/John%20...20Edition.html
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Old 19th September 2012, 06:21 PM   #18430
RCruz is offline RCruz  Switzerland
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Ripple eater ?

How does it work ?
Where do you place those, in the prereg ?
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RC
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