Mitsubishi DP-105 CD Player - 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 June 2013, 08:18 PM   #1
diyAudio Member
 
djmeverett's Avatar
 
Join Date: Dec 2011
Location: Washington
Default Mitsubishi DP-105 CD Player

I have this player with a service manual. It has a stuck transport mechanism and just displays an "E" in the display when trying to play a CD. After taking the cover off it appears the tray is jamming and catching on the top "spinner" plate that holds the CD in place and presses against the motor turntable below.
I have tried to adjust that upper plate but it just doesn't seem to have any adjustment or enough "lift" high enough to clear the plastic tray assembly. It just catches there as it retracts and stops movement. I can't figure out what might be the cause of this.
I thought maybe someone here would have some ideas on getting this to operate smoothly so I can move on to further tests!
Attached is a photo of the top plate...hopefully these transport are a common fix and similar to many other mechanism's
Thanks
Attached Images
File Type: jpg IMG_2700.jpg (915.7 KB, 45 views)
  Reply With Quote
Old 15th June 2013, 08:44 AM   #2
Mooly is online now Mooly  United Kingdom
diyAudio Moderator
 
Mooly's Avatar
 
Join Date: Sep 2007
Can't ever recall working on a Mitzi player before.

Only things I could suggest would be belts, and that they are failing to lift/lower the mech properly, or dried hardened grease thats doing the same. Micro switches on many players can be troublesome but wouldn't normally cause "mechanical" issues. Could the mech be "timing sensitive" and the tray has got out of sync ?

Really a case of very careful inspection/dismantling and winding the motors by hand to see whats (not) happening.
__________________
-------------------------------------------------------
Installing and using LTspice. From beginner to advanced.
  Reply With Quote
Old 16th June 2013, 08:21 PM   #3
diyAudio Member
 
djmeverett's Avatar
 
Join Date: Dec 2011
Location: Washington
Thanks Mooly for a reply.
I've never seen a Mitsubishi CD player before either...but I got this from a friend who had it laying around and the service manual was $10, so I thought what the heck...see if I can resurrect it for some fun.
I think my next step to remove the 4 main base transport bolts that hold it onto the chassis and see if I can detect a problem underneath the tray mechanism. There are no belts visible and so far no reference to any in the service manual. It may be some sort of clearance adjustment because there is a figure in the SM that shows that....it's unclear how that gets adjusted but hopefully I can figure it out...
  Reply With Quote
Old 16th June 2013, 08:26 PM   #4
Mooly is online now Mooly  United Kingdom
diyAudio Moderator
 
Mooly's Avatar
 
Join Date: Sep 2007
Careful dismantling and inspection has to be the first line of attack. I'd be surprised if there were no belts tbh, not least because they are a safeguard for the mech/motors/motor driver etc. I seem to recall Mitzi videos being a bit unique and oddball many years ago so you'll have to see what you find.
__________________
-------------------------------------------------------
Installing and using LTspice. From beginner to advanced.
  Reply With Quote
Old 16th June 2013, 11:21 PM   #5
diyAudio Member
 
PlasticIsGood's Avatar
 
Join Date: Mar 2012
Location: Bradford
The tray appears to be gear driven by a motor that does nothing else, so the clamp is either cam-driven from the tray, or more likely has its own motor. From the design of the tray I guess the disc should be lifted up by the same mechanism that lifts the clamp.

I don't recognise the mech. It could be the clamper's cam has seized, or the grease has set hard.
  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
Kenwood DP-4020 CD Player woes JesseG Digital Source 6 7th December 2012 09:46 PM
Kenwood DP-750 CD player JoMo Digital Source 0 1st July 2010 07:50 AM
Wanted: Leftover DAC from an upgraded CD player, or CD player with broken transport. Spasticteapot Swap Meet 0 7th October 2006 09:12 PM
How do I use CD-Rom diy meridian 588 CD player and 800 reference CD/DVD player? jelou Digital Source 4 29th April 2004 04:48 AM


New To Site? Need Help?

All times are GMT. The time now is 01:23 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