Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

CDM 9/44 to repair CDM 9 Pro
CDM 9/44 to repair CDM 9 Pro
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 10th October 2005, 02:28 PM   #1
Duson is offline Duson  Canada
diyAudio Member
Join Date: Oct 2005
Exclamation CDM 9/44 to repair CDM 9 Pro

Quote from Tubenut
"Vinegrad, irrespective of which CDM9 variant Micro used on your player, the optics are interchangeable between the different types.
It takes 2 screws, static safe working and a little patience. I have resurrected a few CDM9 pro based players using the optics from CDM9/44. The motor seldom fails, the motor is the main diff between CDM9/44 and the pro (CDM9/60), as well as the material of the plate into which it is all bolted. It is aluminium or something on the pro vs steel I think on the 9/44."

Since it appears a lot easier and simpler to replace the whole CDm 9 Pro mechanism with a CDM 9/44 unit from Grandata or ... what would be the disadvantages of doing so?


  Reply With Quote
Old 12th October 2005, 04:41 PM   #2
kevinkr is offline kevinkr  United States
diyAudio Moderator
kevinkr's Avatar
Join Date: Sep 2004
Location: Boston, Massachusetts
CDM 9/44 to repair CDM 9 Pro
They aren't interchangeable - the motor in the pro is a high end brushless hall effect motor and the one in the cdm9/44 is a cheap brush style motor. The pickup assembly is the only thing you want to interchange - there is a world of difference in quality between the two mechanisms.

The laser assemblies do really interchange very easily. You may not even have to remove the mechanism from the tray assembly to do it.

Observe good anti-static handling procedures and leave the shorting bar in place on the new pickup assembly until you are ready to connect it. At a minimum you should have a grounded wrist strap and a work space entirely free of paper and other foreign objects when you do the swap.

Note that some players don't respond well to the transplant - my Lambda Drive remains dead some months after the effort, and I have heard of others with similar problems with this drive. Theta's generally have no problem though - and you might be successful regardless of the brand.

Just watch out where you get the cdm9/44 from though - there are a lot of cheap reconditioned mechanisms out there and they often don't work.

  Reply With Quote


CDM 9/44 to repair CDM 9 ProHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
DIY Car Repair avatar307 The Lounge 6 22nd May 2011 10:19 PM
DHD should repair? Solosound Car Audio 5 9th November 2008 07:39 PM
my amp repair benlebow Car Audio 3 10th February 2008 12:30 AM
Nad 304 repair big jim Solid State 0 30th December 2006 11:19 AM
Help for repair my KSA 100 Alex helge Solid State 76 23rd October 2003 03:38 PM

New To Site? Need Help?

All times are GMT. The time now is 08:50 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio