Actually, I was looking for this information for 3 years!...now thanks to you, the manual is on my hands and of great help, cause I understand now where I was doing wrong connections and wires...excellent, I'll be back to you if in need, thank you.
This manual covers the main equipment features only. While it also includes the procedure for saving and loading from the now long obsolete memory cards it does not mention the how to operate with the optional floppy drive interface so I am still at a loss about how to use this! Note that there is a separate manual covering the MIDI interface and programming via the keyboard, not included in this download. You will also need to get hold of this if you want to use the MIDI interface properly. Basically there is little difference between this manual and the free to download manual for the similar PR60 model.
Good list of manuals. I found a very rare one and easily get. Should be promptly to download, as we must to wait hours even after confirmed payment.
Text excerpt from page 6 (click to view)
MX-J100 Removing the CD Tray fitting (See Fig. 4 to 6)
Prior to performing the following procedure, remove the top cover and the side covers.
ATTENTION: Be sure to remove the CD tray fitting before removing the CD changer unit. 1. Press the POWER button. Press the OPEN/CLOSE button to eject the CD tray. 2. Move the CD tray fitting upward and release the joint b. 3. Press the OPEN/CLOSE button to insert the tray.
Joint b CD tray fitting
Removing the CD Tray fitting (See Fig. 5 to 7)
- How to eject the CD tray without turning on power 1. Turn the black loading pulley gear marked c from the back of the CD changer unit as shown in Fig.7 and draw the CD tray toward the front. 2. Move the CD tray fitting upward and release the joint b. 3. Push and insert the CD tray manually.