Philips cd160 CDM2 replacement to CDM1 - 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 2013, 11:06 AM   #1
orsmate is offline orsmate  Hungary
diyAudio Member
 
Join Date: Apr 2011
Default Philips cd160 CDM2 replacement to CDM1

Hi!

I've been reading diyaudio.com for a while silently tweaking and sometimes destroying stuff... that's just how it goes.

Have made some modifications to my Philips CD 160, and I decided to replace the whole CDM2 to a CDM1 that I have off the shelf. Has anyone tried something like this? I've realized that a big difference between CDM2 and CDM1 is that CDM2 outputs a so called HFD (High Frequency Detector) signal almost straight to SAA7210 while CDM1 does not do this... other that this they do seem to be compatible.

Have checked in the Philips CD304-MKII schematic that there is a HF detection circuit for the purpose, and I wonder if anyone has an idea of a simpler replacement of the circuit.

Can anyone tell me what might be the result of leaving this input floating and connecting the CDM1?


Thanks a lot in advance!

Cheers!
  Reply With Quote
Old 31st January 2013, 03:25 PM   #2
oshifis is offline oshifis  Hungary
diyAudio Member
 
Join Date: Mar 2004
Location: Budapest, Hungary
Hi Máté,

The SAA7210 data sheet says pin 26 HIGH enables the detector, and it has an internal pull-up resistor. So you can leave it open. Are you sure the servo part of CDM-1 and CDM-2 are compatible?
  Reply With Quote
Old 31st January 2013, 03:45 PM   #3
orsmate is offline orsmate  Hungary
diyAudio Member
 
Join Date: Apr 2011
Hi!

I do hope it is compatible. It shouldn't do any damage, should it?

Üdv
  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
Source for Philips CD160 display? leadbelly Digital Source 9 30th March 2011 09:32 AM
digital sources philips cd160 pinged Digital Source 3 14th February 2011 01:21 PM
Philips CDM1 MKII = CDM2?? FC5687 Digital Source 2 4th July 2007 12:32 PM
philips cd371 and cd160 schematics PTSOUNDLAB Digital Source 1 21st January 2007 04:22 PM
philips cd160 DonJuan Digital Source 1 28th July 2003 04:44 PM


New To Site? Need Help?

All times are GMT. The time now is 08:37 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