Marantz CD63 & CD67 mods list - Page 911 - 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 15th February 2008, 08:43 AM   #9101
diyAudio Member
 
Fidelity Audio's Avatar
 
Join Date: Dec 2005
Location: Doncaster England
The KI tx is connected up two ways, one way works on some pcbs and not on others. You will have continuity before the fuses as you are measuring the resistance of the transformer winding.

Measure DN01 02 03 04 for shorts also

Brent
  Reply With Quote
Old 15th February 2008, 08:44 AM   #9102
diyAudio Member
 
Fidelity Audio's Avatar
 
Join Date: Dec 2005
Location: Doncaster England
After that you need to check QM01 Q106 and Q105. One of these could have failed. Remove all the connections to the mech. Test again and see if it blows a fuse

Brent
  Reply With Quote
Old 15th February 2008, 08:47 AM   #9103
diyAudio Member
 
Join Date: Oct 2006
Location: Cleveleys, Lancashire
Just found R851 and R854 are blown so will change these tonight and report back.

Cheers
Jim
  Reply With Quote
Old 15th February 2008, 08:52 AM   #9104
diyAudio Member
 
Join Date: Oct 2006
Location: Cleveleys, Lancashire
not sure how to check the servo chips, but I can tell you it's blowing the fuses without any connections, just a naked pcb out of the chassis. DN diodes all ok.

Jim
  Reply With Quote
Old 15th February 2008, 08:55 AM   #9105
diyAudio Member
 
Fidelity Audio's Avatar
 
Join Date: Dec 2005
Location: Doncaster England
They are for the display control voltage (q851 854). 10K and 47K. This should not be causing you fuse blowing problem

Brent
  Reply With Quote
Old 15th February 2008, 08:57 AM   #9106
diyAudio Member
 
Fidelity Audio's Avatar
 
Join Date: Dec 2005
Location: Doncaster England
Pin 9 to 15 on all three chips are connected to the -ve rail, measure this on each chip to gnd.

Pin 2 is for +ve and measure this to gnd on each chip

Brent
  Reply With Quote
Old 15th February 2008, 08:58 AM   #9107
diyAudio Member
 
Join Date: Oct 2006
Location: Cleveleys, Lancashire
OK thanks. Will try checking all the pins on the servo chips tonight. Do I need to check them all from each to ground or across each other - the combinations could be mindblowing!

Jim
  Reply With Quote
Old 15th February 2008, 09:00 AM   #9108
diyAudio Member
 
Join Date: Oct 2006
Location: Cleveleys, Lancashire
Ooops - keep cross posting.

Need to get to work so will check that tonight.

Thanks for all the help - dunno what I'd do without you.

Aaaahhhhh!

Jim
  Reply With Quote
Old 15th February 2008, 09:04 AM   #9109
diyAudio Member
 
Fidelity Audio's Avatar
 
Join Date: Dec 2005
Location: Doncaster England
LOL

Yes all to gnd and then across the two. Make sure the fuses are removed

Brent
  Reply With Quote
Old 15th February 2008, 12:01 PM   #9110
diyAudio Member
 
Join Date: Dec 2007
Just been looking at that old debate, CD vs. Vinyl. The main bugbear with CD appears to be compression.

I was wondering how those Apple I pods compare, with their lossless audio format, which is suppose to be superior to CD. If you converted your Vinyl collection to this format, would that mean the IP is the next best thing to a turntable, rather than the CD?

Has CD had its day!!??
  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 02:09 PM.


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