Marantz CD63 & CD67 mods list - Page 1374 - diyAudio
Go Back   Home > Forums > Source & Line > Digital Source

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 14th December 2009, 12:52 PM   #13731
wdoerr is offline wdoerr  United States
diyAudio Member
 
Join Date: Aug 2009
Location: Chicagomon
Installed servo regulator yesterday. Very nice, indeed.

Couldn't solder to the jumper, so I had to run wires, grounds too, from the bottom of the board. The first two 7805's I tried failed miserably. First I though I didn't need to scrape the lacquer of the top of the pcb, I'll just solder it to the ground of the resistor I just took out. Did it for both feeds. After I woke up, I solder bridged two pins. Then I cut those two out and installed two new ones correctly. Also, ddn't pay attention when reconnecting the ribbon cable to the front panel, and crimped a couple pins on it. Now the display does not work, which is very annoying. Definitely have to fix that.

On to the DAC.
  Reply With Quote
Old 14th December 2009, 08:45 PM   #13732
diyAudio Member
 
Join Date: Oct 2009
Location: Brunei
What a great feeling to fix something... my machine runs again. Turned out to be that I broke a soldering pad, so the Digital Vin on the decoder had 0. Strange response of the chip to just let the motor spin at max speed.

When it aint broke, break it. Then fix it!
  Reply With Quote
Old 16th December 2009, 05:38 AM   #13733
poynton is offline poynton  United Kingdom
diyAudio Member
 
poynton's Avatar
 
Join Date: Mar 2005
Location: A life on the ocean waves when I'm not at home in N. Wales (but I'm not Welsh so no sheep jokes!)
Quote:
Originally Posted by studiostevus View Post
..................

When it aint broke, break it. Then fix it!

Where have I heard that before ??????


For expert advice on how to break pads. contact Simonty

Andy
__________________
If it ain't broke, break it !! Then fix it again. It's called DIY !
  Reply With Quote
Old 16th December 2009, 09:37 AM   #13734
SimontY is offline SimontY  United Kingdom
diyAudio Member
 
SimontY's Avatar
 
Join Date: May 2003
Location: Sheffield, North England
Send a message via MSN to SimontY
Glad you sorted it Steve, it's usually something we do ourselves, as I know only too well.

Yes, I was good at breaking pads but those days are behind me, it's all clean work now Andy

I will post a picture of my current cd63 project in a bit.
  Reply With Quote
Old 18th December 2009, 01:53 PM   #13735
mm2 is offline mm2  Germany
diyAudio Member
 
Join Date: Dec 2003
Location: Munich
Default CD67 servo amplifiers

Quote:
Originally Posted by SimontY View Post
I'm modding a CD63 at the moment. ...
I just regulated voltages to two the three servo amplifiers using 7808 / 7908. The results are amazing! The detail, openness, space, smoothness and bass control have really improved a lot! The player sounds very funky.
Simon
Quote:
Originally Posted by SimontY View Post
Interesting comments Glenn. I feel it's worth pointing out that when compared with like-for-like mods many people prefer the CD67. The CD67 has a regulated 5V for the servo amps / driver op-amps. I'd still recommend people buy a CD63 though, ...
Simon
Hy,

interesting comments.
has anyone tried to increase regulated 5V for the three servo amplifiers in a CD67 ?
According to datasheet TDA7073 up to 18V should be the maximum.
  Reply With Quote
Old 18th December 2009, 02:50 PM   #13736
diyAudio Member
 
Malefoda's Avatar
 
Join Date: Jun 2006
Send a message via MSN to Malefoda
Default She's not bad, she's just drawn that way...

Hi there,

here is my xmas tree!
I had to use only red Leds to get it right...
The CD-43 is finished, it will have to face the CD-40 wich comes next week =)
I'll do sound report of the CD-43 after a decent burn-in, RC LPF and ringing avoided 317 may help a lot.

Another thank you to you all for helping, the result is at least better than the factory player

A grateful Matthieu,
merry melodies to you all!
Attached Images
File Type: jpg DSC00236.jpg (77.3 KB, 140 views)
File Type: jpg DSC00238.jpg (168.8 KB, 136 views)
__________________
QED T260, Thorens TD-318, Marantz CD-43, TK2050, JBL 4313B & MJK's OB: music!
  Reply With Quote
Old 18th December 2009, 03:05 PM   #13737
diyAudio Member
 
Fidelity Audio's Avatar
 
Join Date: Dec 2005
Location: Doncaster England
Nice neat work

Brent
  Reply With Quote
Old 18th December 2009, 03:20 PM   #13738
RCruz is offline RCruz  Switzerland
diyAudio Member
 
RCruz's Avatar
 
Join Date: Sep 2006
Location: Wallis
Blog Entries: 1
Cool... I also like red leds.....
  Reply With Quote
Old 19th December 2009, 11:22 AM   #13739
diyAudio Member
 
Malefoda's Avatar
 
Join Date: Jun 2006
Send a message via MSN to Malefoda
Yep,
and I can check if at least 2 regs are working through the removed headphones' jack

But it does not sounds good. It's held back, lack energy and dynamic. Maybe I need to bypass caps (I did not at all, only big lytics and bypass at pins) or such to improve response? Like very input legs of the regs? That annoying bypass caps story...

Or my output caps combo are not that great, or the BG at DAC's analog and DOS (and pre-amp also!) take years to burn-in... albeit the xmas tree and moved furnitures changed sound and what I am used to... I don't like the way it sounds now

Matthieu
__________________
QED T260, Thorens TD-318, Marantz CD-43, TK2050, JBL 4313B & MJK's OB: music!
  Reply With Quote
Old 19th December 2009, 12:43 PM   #13740
SimontY is offline SimontY  United Kingdom
diyAudio Member
 
SimontY's Avatar
 
Join Date: May 2003
Location: Sheffield, North England
Send a message via MSN to SimontY
Sorry to hear that Matthieu

How much of the problem do you think is the CD player?

Simon
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



New To Site? Need Help?

All times are GMT. The time now is 02:28 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2