Help: NOS mod for Philips/magnavox cdb630 - 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 31st January 2012, 11:18 PM   #1
diyAudio Member
 
Join Date: Sep 2006
Location: West USA
Question Help: NOS mod for Philips/magnavox cdb630

I have performed the usual mods to both Philips cdb630 and an Arcam Alpha 5 cd player, both using the same and usual philips chip set. Both were NOS modded, but the Philips/Magnavox does something that the Arcam doesn't. When I removed the SAA7220A from each, the operation of each diverged. Each was modded the same way, but the Philips when put into pause doesn't mute and appears to continue to play the single disk rotating track it was paused on. That is to say, like a LP skipping over and over. Additionally, when the skip track function is used, a few moments of the skipped to track plays, then it starts over and plays the track normaly. It will play the disk without doing this if you just let it play thru as normal, track 1 thru track xx. The Arcam operates as if normal. I have looked at the circuits for each and found that the chips, although the same, are connected up differently(?). Not being a digital logic type I could use some help in sorting this out as the player is quite nice except for the quirky mute problem. Any help out there? Could it just need a logic pull up on a pin?
  Reply With Quote
Old 1st February 2012, 12:40 AM   #2
diyAudio Member
 
Join Date: Sep 2006
Location: West USA
The philips filter chip is a SAA7220 version B in both players. Sorry for the error.
  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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Magnavox CDB650 and Philips CDB630, 1541 based players pjanda1 Swap Meet 6 13th December 2010 10:28 PM
Magnavox CD 2000: a Philips NOS CDP from 1989 hollowman Digital Source 1 14th July 2009 02:07 PM
Philips Magnavox FD1000 / CD100 'Humming' issue Raddek Digital Source 9 10th February 2009 12:15 AM
Magnavox/Philips CDB-692, what will it sound if I mod it? albertho Digital Source 3 12th December 2007 09:32 AM
Anyone knows Philips/Magnavox cdb-266 vulture Digital Source 0 26th February 2004 11:56 PM


New To Site? Need Help?

All times are GMT. The time now is 07:06 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