Converting CDM4/19 based player into top-loading - diyAudio
Go Back   Home > Forums > Source & Line > Digital Source
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

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
Thread Tools Search this Thread
Old 28th March 2017, 08:04 PM   #1
diyAudio Member
Join Date: Oct 2016
Question Converting CDM4/19 based player into top-loading

Hi everyone

Im converting Rotel-855 (CDM4/19) into a top-loading player and would want to remove the loading tray and the motor.

The question is:

Can anyone suggest a simple way of modifying existing schematics, so I could have one button to reset the CD reading?
I.e. one button controlled by the CD cover and being ON only when the cover is closed. Opening/closing the cover (button state: Off/On) would make the cd player re-read the CD.

Rotel uses MC68HC05 microcontroller for running the CD loading mechanism. I have service manual for R-855 and MC68HC05 datasheet if need be.

Any help would be highly appreciated.

  Reply With Quote
Old 8th April 2017, 02:12 AM   #2
diyAudio Member
Join Date: Oct 2016
Never mind. I figured this out : )
  Reply With Quote
Old 8th April 2017, 03:33 AM   #3
diyAudio Member
Join Date: Jan 2017
Location: Portland OR
Good deal.
I would have chimed in but I know nothing about converting this to top loading.
Although I do have an RCD855

  Reply With Quote


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
Spoke Wight (Disc Pressure) for CD Player (Top Loading Versions) tiefbassuebertr Digital Source 5 22nd December 2013 11:11 AM
Philips laserunits CDM2/10 CDM4/19 CDM4/11 CDM4 Joris Swap Meet 1 31st May 2013 06:19 PM
need help : VAM1201 (ECO-SL-MKIII) based top loading cd player 6ri.l Digital Source 0 20th October 2011 05:11 PM
FS: Ariston CD1 cd player, CDM4/19 + TDA1541A(si)+OPA627BP mudihan Swap Meet 13 6th July 2006 04:24 AM
Repairing CDM4/19 (with CDM4/31???) Shaun Digital Source 4 1st August 2003 12:29 PM

New To Site? Need Help?

All times are GMT. The time now is 01:53 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2